KR101076775B1 - Apparatus for manufacturing Pressure Ground Anchor - Google Patents

Abstract

The present invention relates to a device for manufacturing a compressed ground anchor, comprising: a main cylinder configured to advance and retract by fitting an anchor pipe (pipe) to a piston; A fixed plate for positioning the anchor advanced by the main cylinder; A plurality of fixing rollers fixed to the left and right sides of the fixing plate at regular intervals to squeeze one or a plurality of cable hoses fitted into grooves of the heads of the anchors at both sides to deform firstly; A plurality of movable rollers provided between the fixed rollers on the left and right sides of the fixed plate, respectively, for advancing and retracting by auxiliary cylinders to squeeze the cable hoses installed on the anchors on both sides to deform secondly; And a hydraulic pump configured to transfer hydraulic pressure to the main cylinder and the auxiliary cylinder so that the piston moves forward and backward. An auxiliary cylinder is operated to squeeze the cable hose with the movable roller, and after the fixing band is installed on the cable hose squeezed to the anchor by the fixed roller and the movable roller, the fixed roller is operated by the backward operation of the main cylinder. And the auxiliary cylinder is operated after the anchor is completely removed from the movable roller to move the movable roller backward, thereby easily and conveniently manufacturing the anchor structure in which the PC strand is integrated.

Compressed Ground Anchor, PC Strand, Pack Anchor, Manufacturing, Fabrication, Hydraulic Pump, Cylinder, Roller

Description

Apparatus for manufacturing compressed ground anchors {Apparatus for manufacturing Pressure Ground Anchor}

The present invention relates to a device for manufacturing a ground anchor used as a reinforcement for reinforcing soft ground, earth and sand, buried stone, etc., and supporting a structure such as a building or a bridge. The present invention relates to a device for manufacturing a compressed ground anchor that can integrate a hose and an anchor structure into one.

In general, when the civil works of industrial complexes such as residential complexes, industrial complexes, railways, highways, tunnels, artificial steep slopes are formed due to natural slopes or excavation.

Naturally and artificially formed slopes are exposed to the risk of cutting and collapse due to various factors such as earth pressure, wind pressure, water pressure, and earthquake. Therefore, various ground and slope reinforcement methods such as soil nailing, rock bolting, and ground anchors are used to prevent cutting and collapse of the slope.

Among them, ground anchors are used not only as ground reinforcement but also as reinforcement for supporting structures such as buildings and bridges. The ground anchor has an anchor body formed at the tip of a tension member embedded in the ground by the injection of cement paste or grouting. Here, a state in which the tension member is mechanically connected to the structure through the head of the anchor body is called an anchor.

1 is a cross-sectional view showing a state of a conventional ground anchor, the construction method is as follows.

First, one end of the PC stranded wire 10 is fixed to the head inner body 20, and a grouting hole 5 is formed on the ground 4, and then the head lower body 20 and the PC stranded wire 10 are grouted. Insert in (5). Thereafter, the other end of the PC strand 10 is passed through the pressure hole 2a of the pressure plate 2 provided in the vertical H beam 1, through hole 3a of the horizontal beam 3, anchor head 11 Grouting with concrete (6) while the split wedge, the tension cylinder (12) and the tension head (13) and the split wedge passed. Thereafter, when the grouting concrete 6 is cured, the strand of the PC strand 10 is tensioned by the tension cylinder 12 with respect to the anchor head 11 and the head inner body 20, and the anchor head ( In 11), the wedge is fixed using the split wedge to prevent the collapse of the ground 4 during construction work. Then, when the construction work is completed, the strand 10 'of the head load bearing body 20 is removed from the head load bearing body 20 and the grouting hole 5. In this case, in order to easily remove the strand 10 ', the other end of the strand 10' is installed on the head inner body 20 in a U-shaped annular shape and removed by drawing the strand 10 'from the front.

However, the conventional method of removing the ground anchor has a problem in that it is not possible to pull out the strand 10 'in the event of a stiffness being drawn out while continuously fixing with the U-shaped support member. In order to facilitate the drawing of the PC strand 10, the soil is contaminated by applying grease or the like between the outer periphery of the strand 10 'and / or the split wedge 30 and the pressing surface 22a.

In order to prevent the loss of tension and the loss of tensile force generated when constructing anchors in the soft ground, the number, spacing, and tensioning point of the head inner body are controlled.

As another anchor in the related art, the tension member removing anchor shown in FIG. 2 uses an unbonded PS stranded wire coated with grease to facilitate drawing, so that the building structure due to the grease to be removed after use There is a problem that the top plate and the surrounding ground are contaminated. In addition, the one-shaped anchor was difficult to completely remove the strand due to the difficulty of confidentiality.

As described above, the conventional anchor structure is mostly in one-shaped form, and also has a U-turn form.

In addition, conventional anchor structures are not only difficult to insert into a grouting hole drilled at a predetermined angle (for example, about 30 mm to about 35 mm) due to the long pipe length, but also are difficult to transport and install.

In addition, the conventional anchor structure has a problem that the structure of the anchor itself is complicated, the construction is cumbersome and difficult to reduce the construction efficiency and the construction period takes a long time.

In addition, conventionally, there is no equipment capable of integrating the anchor structure and the PC strand into one, thus relying only on manual work. As a result, not only time-consuming work and manpower, but also anchor structures and PC strands could not be tightly fixed to one, there were difficulties in transportation and construction.

The technical problem to be achieved by the present invention to solve the above problems, to provide a device for manufacturing a compression-type ground anchor to integrate a hose and anchor structure with a built-in PC strand wire with a fixing band.

In addition, another technical problem to be achieved by the present invention is to mount the anchor to the piston of the main cylinder to perform the forward and backward operation, the pressure roller and the fixed roller to move forward and backward by the auxiliary cylinder the hose with the built-in PC strand installed in the anchor The present invention provides a device for manufacturing a compressed ground anchor that is compressed and then integrated into a fixing band.

In addition, another technical problem to be achieved by the present invention is to eliminate the grease application process using a method of assembling PC strands and extruded hoses each with a separate material compression to solve the problem of contamination on the surrounding ground and structure The present invention proposes a device for manufacturing a type ground anchor.

In addition, another technical problem to be achieved by the present invention is that in the case of compression type, by making a single fixing part to enable general tension, in the case of compression dispersion type by making a plurality of fixing parts at regular intervals multi-independent tension is possible The present invention provides a device for manufacturing a compressed ground anchor that can be completely removed at a tensile removal rate of 100% by allowing a load to be distributed using a tensioner to allow accurate construction.

In addition, another technical problem to be achieved by the present invention can be used in construction where a lot of slime occurs during drilling, such as soft ground, earth and sand, buried stone layer, and the formation of a solid grouting solidified body and attachment of the anchoring site and the ground The present invention proposes a manufacturing apparatus of a compressed ground anchor that can be increased.

In addition, another technical problem to be achieved by the present invention is to form a circular wing spacer in the middle of the pipe to increase the adhesion and control the pipe length, thereby reducing the cost and improve the construction of the compressed ground The present invention provides an anchoring device.

In addition, another technical problem to be achieved by the present invention is to propose a manufacturing apparatus of a compression-type ground anchor that can be easily and quickly construction by using the factory assembly finished product, greatly reducing the construction period.

As a means for solving the above-described technical problem, the invention as set forth in claim 1 includes: "a manufacturing apparatus for a compressed ground anchor, comprising: a main cylinder for moving forward and backward by fitting an anchor pipe (pipe) to a piston; A fixed plate for positioning the anchor advanced by the main cylinder; A plurality of fixing rollers fixed to the left and right sides of the fixing plate at regular intervals to squeeze one or a plurality of cable hoses fitted into grooves of the heads of the anchors at both sides to deform firstly; A plurality of movable rollers provided between the fixed rollers on the left and right sides of the fixed plate, respectively, for advancing and retracting by auxiliary cylinders to squeeze the cable hoses installed on the anchors on both sides to deform secondly; And a hydraulic pump configured to transfer hydraulic pressure to the main cylinder and the auxiliary cylinder so that the piston moves forward and backward. When the head of the anchor contacts the fixed plate by the forward operation of the main cylinder, the main cylinder stops and An auxiliary cylinder is operated to squeeze the cable hose with the movable roller, and after the fixing band is installed on the cable hose squeezed to the anchor by the fixed roller and the movable roller, the fixed roller is operated by the backward operation of the main cylinder. And after the anchor is completely removed from the movable roller, the auxiliary cylinder operates to reverse the movable roller.

The invention according to claim 2, wherein the manufacturing apparatus of the compression type ground anchor comprises: a hydraulic main line for forward and reverse provided between the hydraulic pump and the main cylinder; Forward and reverse hydraulic auxiliary lines installed between the forward and backward hydraulic main lines and the auxiliary cylinders; And pressure gauges installed on the hydraulic main lines for the forward and backward movements.

According to the invention as claimed in claim 3, "The anchor according to claim 1, wherein the anchor comprises: an anchor head 110, each having a columnar groove 113 formed between the partition wall 112 and both side walls 115, respectively. Device for manufacturing a type ground anchor.

The invention as set forth in claim 4, wherein the anchor comprises: an anchor head 410 including an anchor head 410 having one cylindrical groove 413 formed between two sidewalls 415. Device.

The invention according to claim 5 is characterized in that "the fixed roller and the movable roller are constituted by circular rollers integrally formed with grooves corresponding to the size and number of grooves formed in the anchor head, respectively. Device for manufacturing a type ground anchor.

The invention according to claim 6 provides "The manufacturing apparatus of the compression type ground anchor of Claim 1 in which the said fixing band is comprised from the metal material."

According to the present invention, an anchor is mounted on the piston of the main cylinder to move forward and backward, and the cable hose installed in the anchor is compressed with a pressure roller and a fixed roller that are advanced back and forth by the auxiliary cylinder, and then fixed with a fixing band to fix the PC strand. This embedded hose and anchor structure can be integrated into one. Thereby, the anchor structure in which the PC strand is integrated can be manufactured easily.

In addition, it is possible to mass-produce an anchor structure in which PC strands are integrated by an automated process.

The compression-type ground anchor produced in the present invention has the following effects.

Since the PC strands used as tension members remain in the ground, the problem of using underground spaces or occupying other papers in the future is solved, and grease used in the conventional one-shaped compression distribution type anchor The use of unbonded stranded wire with) can solve the ground contamination caused by grease and grease contamination caused by the removal of tensile material during the construction process, and the expansion pack can form a larger anchorage structure than conventional friction anchors. In addition, the tension member and the loss is prevented, there is an effect that can be installed easily and quickly.

In addition, it is possible to form a large diameter fixation bulb in the soft ground, it is possible to achieve a loss of tensile force member and loss by forming a large diameter fixing bulb.

In addition, it is possible to easily and completely remove the PC strands (PC strands) at the completion of civil construction after anchoring them with PC strands (PC strands) so that the ground does not collapse during underground excavation or cutting work in civil engineering or construction works. .

In addition, regardless of the nature of the ground, both the soil layer and the rock layer can be easily expanded and firmly settled, it is possible to exhibit a stronger pull resistance.

Furthermore, by providing a structure for supporting and reinforcing the slope stabilizing structure, which is constructed by successively laying a slope block of concrete on a slope of a river bank, a bank, or a roadside, the structure of the slope structure Stability can be increased and there is no pollution to surrounding ground and structures.

In addition, rapid anchor body manufacturing and construction installation is quick, easy, and a solid anchor structure is easy to use even one floor high and deep underground.

In addition, soils in areas such as waste landfills, coastal landfills, heavily cracked rock layers, soft grounds and unidentified aquifer aquifers may be affected by large gaps or loose densities between settlement layers and the effects of groundwater flow by the aquifer aquifer. Although anchoring device was installed on the ground, the anchoring device was unstable and the anchoring was unstable. However, in the present invention, an expandable pack made of a polymer composite fiber is covered around the anchor device so that the anchoring device can be applied to such ground. The ground was stabilized by the formation of a large number.

In addition, the use of a low-flow injection material and a pack prevented the deviation of the injection material out of the improvement range, and the injection of pressure enabled the formation of large diameter fixation bulbs in soft ground, and the formation of large diameter fixation bulbs prevented tension members and losses. With the removal of anchors, the disputes related to soil pollution and land use have been resolved.

DETAILED DESCRIPTION Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. In order to clearly explain the present invention in the drawings, parts not related to the description are omitted, and similar parts are denoted by similar reference numerals throughout the specification.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Construction and function of the manufacturing device of the compressed ground anchor

3 to 6 is a view for explaining the configuration and operation of the manufacturing apparatus of the compression-type ground anchor according to a preferred embodiment of the present invention, Figure 3 is the head of the anchor installed in the piston 311 of the main cylinder 310 A diagram showing a state in which the hose 150 having the PC stranded wire 160 is mounted on the 110, and FIG. 4 is a hose that is compressed by rollers by the forward operation of the main cylinder 310 and the auxiliary cylinders 320 and 330. 150 is a view showing the state in close contact with the anchor, Figure 5 is fixed in the anchoring hose 150 to the anchor with a fixing band 161 in the state of Figure 4 and then the main cylinder 310 and the auxiliary cylinders (320,330) It is a figure which shows the state which anchored out of the roller by operation. 6 is an enlarged perspective view of the state of FIG. 5 from another angle.

7 to 6, the manufacturing apparatus of the compression type ground anchor according to the present invention, the manufacturing table 300, the main cylinder 310, auxiliary cylinders (320, 330), hydraulic pump 340, forward hydraulic pressure Main line 341, forward hydraulic auxiliary line 342, reverse hydraulic main line 343, reverse hydraulic auxiliary line 344, pressure gauges (345,346), fixed plate 350, fixed rollers (351 to 354) ), Movable rollers 355, 356, controller 360, and the like.

The production stand 300 is a frame forming the outer shape of the anchor manufacturing apparatus, the above-mentioned equipment including the main cylinder 310 and the auxiliary cylinders (320,330) is installed on a rectangular upper table. The fabrication table 300 is made of a metal material, as shown in the photos of FIGS. 8 and 9.

The main cylinder 310 is configured to move forward and backward the piston 311 connected to one side by the hydraulic pressure supplied from the hydraulic pump 340. To this end, a forward hydraulic main line 341 and a reverse hydraulic main line 343 are installed between the main cylinder 310 and the hydraulic pump 340, and the forward and reverse hydraulic main lines 341 and 343. Are respectively provided with pressure gauges 345 and 346 for measuring pressure.

The hydraulic pump 340 transmits hydraulic pressure to the main cylinder 310 and the auxiliary cylinders 320 and 330 so that the piston moves forward and backward. At this time, the forward hydraulic main line 341 is the hydraulic pressure for forwarding the piston 311 of the main cylinder 310 is transmitted, the reverse hydraulic main line 343 is the piston of the main cylinder 310 ( Hydraulic pressure is transmitted to reverse 311).

In addition, a tab for fixing the anchor pipe is provided at the end of the piston 311, and the tab is fitted into the anchor pipe. Therefore, the main cylinder 310 functions to forward and backward the anchor mounted on the piston 311 by hydraulic pressure.

Here, the anchor to be mounted on the piston 311 of the main cylinder 310 includes all the anchor structure that is bent by a fixed band by bending the PC strand to the anchor head. That is, the anchor head structure (see FIGS. 9 to 11) in which two grooves are formed in the central partition wall and both partition walls and the anchor head structure (see FIGS. 12 to 13) in which one groove is formed between the partition walls of both sides is shown. It includes everything. This will be described in detail later with reference to FIGS. 9 to 13.

After the anchor pipe is installed on the piston 311 of the main cylinder 310, the cable hose 150 having the PC strand wire 160 installed therein is installed in the groove 113 of the head 110 of the anchor. At this time, the cable hose 150 is fitted into the groove 113 of the anchor head 110 in a state of being slightly curved in a straight or bow shape.

When the spacer 140 is installed in the middle of the anchor pipe, the cable hose 150 is connected to the spacer 140 when the anchor passes between the fixing rollers 351 and 352 by the forward movement of the main cylinder 310. It should be positioned to be inserted into the groove of the.

The plate-shaped fixing plate 350 is provided in the direction in which the piston 311 of the main cylinder 310 is advanced. The fixing plate 350 is installed to determine the position of the anchor moving forward by the main cylinder 310, and stops the anchor while the anchor head 110 touches.

On the left and right sides of the fixing plate 350, a plurality of fixing rollers 351 to 354 are fixed at regular intervals. The fixed rollers 351 and 352 installed on the left and right sides of the fixed rollers 351 and 352 and 353 and 354 are provided with one or more cables fitted to the head 110 of the anchor when the anchor is moved forward by the operation of the main cylinder 310. The hose 150 is rotated while being compressed at both sides to be compressed in a 'U' shape.

When the head 110 of the anchor passes through the plurality of fixing rollers 351 to 354 and comes into contact with the pressing plate 350 to stop, the forward movement of the main cylinder 310 is stopped, and the main hydraulic main line for the forward is stopped. The hydraulic pressure supplied through 341 is transferred to the forward hydraulic auxiliary line 342 to operate the auxiliary cylinders 320 and 330.

Pistons 321 and 331 of the auxiliary cylinders 320 and 330 are connected to the movable rollers 355 and 356 provided between the fixed rollers 351 and 353, 352 and 354 on the left and right sides of the fixed plate 350. Therefore, the movable rollers 355 and 356 are configured to move forward and backward by the operation of the auxiliary cylinders 320 and 330.

Here, the fixed rollers (351 to 354) and the movable rollers (355, 356) are configured differently depending on the groove formed in the anchor head. That is, when the two grooves 113 are formed in the anchor head, the fixed rollers 351 to 354 and the movable rollers 355 and 356 have a separating wall in the center so as to coincide with the anchor head. It consists of circular rollers each having grooves formed between both side walls (see FIG. 11). In addition, when one groove 413 is formed in the anchor head, the fixed rollers 351 to 354 and the movable rollers 355 and 356 are circular rollers each having one groove formed between two sidewalls so as to coincide with the anchor head. It is composed.

The movable rollers 355 and 356 compress the cable hoses 150 of the anchors stopped between the fixed rollers 351 to 354 on both sides of the auxiliary cylinders 320 and 330.

In the state where the cable hose 150 is compressed by the fixing rollers 351 to 354 and the movable rollers 355 and 356, the cable hose 150 is in close contact with the outer circumferential surface of the anchor using a fixing band 161. By fixing it to integrate the anchor and the cable hose 150. At this time, the fixing band 161 is preferably composed of a metal band.

Thereafter, the piston 311 of the main cylinder 310 is retracted by the operation of the hydraulic pump 340, and the anchor provided between the fixed rollers 351 to 354 and the movable rollers 355 and 356 is removed. When the piston 311 of the main cylinder 310 is returned to the original position, the hydraulic pressure supplied through the reverse hydraulic main line 343 is transferred to the reverse hydraulic auxiliary line 344 to provide the auxiliary cylinders 320 and 330. ) Will be activated. Accordingly, the pistons 321 and 331 retreat by the operation of the auxiliary cylinders 320 and 330 to move the movable rollers 355 and 356 to their correct positions.

The controller 360 controls the operation of the hydraulic pump 340, when the head 110 of the anchor touches the fixed plate 350 by the forward operation of the main cylinder 310, the main cylinder 310 ) And the auxiliary cylinders 320 and 330 are operated to squeeze the cable hose 150 to the movable rollers 355 and 356, and to compress the anchor by the fixed rollers 351 to 354 and the movable rollers 355 and 356. After the fixing band 161 is installed on the cable hose 150, the main cylinder 310 is reversed to completely detach the anchor from the fixed rollers 351 to 354 and the movable rollers 355 and 356, and then the auxiliary The cylinders 320 and 330 are operated to control the movable rollers 355 and 356 to reverse.

Then, the operation | movement of the manufacturing apparatus of the compression type ground anchor by this invention which has the said structure is demonstrated.

Operation of the manufacturing apparatus of the compressed ground anchor

The manufacturing apparatus of the compression-type ground anchor of this invention which has the said structure is operated as follows.

First, referring to FIG. 3, a pipe of an anchor to be manufactured is mounted on the piston 311 of the main cylinder 310. In this case, the method of mounting the pipe of the anchor to the piston 311 may be mounted by inserting a tab formed at the end of the piston 311 into the pipe of the anchor. In this case, as described above, the anchor includes an anchor having an anchor head 110 and a spacer 140 formed in the middle of the pipe, or an anchor composed of the anchor head 110 and the pipe.

When the anchor pipe is installed on the piston 311 of the main cylinder 310, the cable hose 150 having the PC stranded wire 160 is inserted into the groove 113 of the anchor head 110. At this time, the cable hose 150 enters between the rollers in the state spanning the anchor head in a state of being slightly curved in a straight or bow shape. The cable hose 150 has the cable hose 150 when the anchor passes between the fixing rollers 351 and 352 by the forward operation of the main cylinder 310 when the spacer 140 is installed in the middle of the anchor pipe. ) Is positioned to be inserted into the groove of the spacer 140.

Next, referring to FIG. 4, the hydraulic pump 340 operates to generate hydraulic pressure to the main cylinder 310 through the forward hydraulic main line 341. As a result, the main cylinder 310 moves the anchor pipe between the fixed rollers 351 and 352 by advancing the piston. At this time, the stroke distance of the piston 311 is the head 110 of the anchor mounted on the front end of the piston 311 when the piston 311 is retracted toward the main cylinder 310, the fixed rollers (351, 352) When the piston 311 is advanced, the head 110 of the anchor should have sufficient margin to contact the fixing plate 350.

When the anchor head 110 touches the fixed plate 350 through the fixed rollers 351 to 354 by the forward of the piston 311, the forward movement of the main cylinder 310 is stopped. The anchor head 110 is maintained in contact with the fixing plate 350. In this case, the hydraulic pressure transmitted toward the main cylinder 310 through the forward hydraulic main line 341 is relatively weak in pressure as the piston 311 of the main cylinder 310 does not move forward. The auxiliary hydraulic cylinders 320 and 330 installed on the left and right sides of the fixed plate 350 are moved to the hydraulic hydraulic auxiliary line 342.

On the other hand, when the anchor enters between the fixed rollers 351 and 352, 353 and 354 by the operation of the main cylinder 310, the plurality of fixed rollers 351 located on the left and right sides of the fixed plate 350 ~ 354 is rotated while pressing one or a plurality of cable hoses 150, which spans the groove 113 of the head 110 of the anchor on both sides. As a result, the cable hose 150 is primarily deformed into a U shape by the fixed rollers 351 and 352, 353 and 354 as the cable hose 150 enters between the rollers while being slightly bent in a straight or bow shape, and the movable roller (355,356) is second order transformed into a full U shape.

When the auxiliary cylinders 320 and 330 are operated after the operation of the main cylinder 310 is stopped while the anchor head 110 is in contact with the fixing plate 350, the movable rollers 355 and 356 move forward and the cable hose ( 150 is pressed on both sides to be in close contact with the outer circumferential surface of the anchor. Thus, the anchor structure and the cable hose 150 are tightly integrated into one.

In the state where the cable hose 150 is compressed to the anchor by the fixing rollers 351 to 354 and the movable rollers 355 and 356, the cable hose 150 is connected using a fixing band 161 made of metal. It is fixed in close contact with the anchor.

Next, referring to FIG. 5, the hydraulic pump 340 operates to generate hydraulic pressure to the main cylinder 310 through the reverse hydraulic main line 343. As a result, the main cylinder 310 retracts the piston 311 to move the anchor head 110 in contact with the fixed plate 350 while the fixed rollers 351 to 354 and the movable rollers 355 and 356. Pulled out. When the piston 311 of the main cylinder 310 returns to the original home position, the operation of the main cylinder 310 is stopped, and through the reverse hydraulic main line 343 to the main cylinder 310. The hydraulic pressure supplied is transferred to the reverse hydraulic auxiliary line 344 having a relatively low pressure to operate the auxiliary cylinders 320 and 330. Accordingly, the pistons 321 and 331 retreat by the operation of the auxiliary cylinders 320 and 330 to move the movable rollers 355 and 356 to their correct positions.

When the operation of the main cylinder 310 and the auxiliary cylinders 320 and 330 is stopped, the anchor structure in which the coated strand wire 160 is integrated into one by the fixing band 161 is separated from the manufacturing platform 300.

By repeating the above operation, the integrated anchor can be manufactured in large quantities.

Finally, after fixing the coated strand wire 160 to the anchor integrally, the head protrusion 170 is formed on the separation wall 112 of the anchor head 110 to prevent a decrease in adhesion force due to slime during drilling. Can be.

7 and 8 are reference pictures of the manufacturing apparatus of the compressed ground anchor of the present invention.

The manufacturing apparatus of the compressed ground anchor of the present invention is to prevent the cutting and collapse of slopes and soft grounds when the civil works of industrial complexes such as residential complexes, industrial complexes, railways, highways, tunnels, etc. Any compressed ground anchor used for reinforcement can be manufactured. In other words, the manufacturing apparatus of the compression-type ground anchor of the present invention can be applied to any anchor structure that is bent in a U-shaped bent PC strand wire to the anchor head and installed in a fixed band.

Hereinafter, with reference to the accompanying drawings Figures 9 to 13 will be described the anchor structure that can be manufactured in the manufacturing apparatus of the compression-type ground anchor of the present invention.

Embodiment of a Compressed Ground Anchor

9 and 10 are diagrams illustrating an example of a compressed ground anchor having two grooves formed in a head manufactured by using the apparatus of the present invention, and FIG. 11 is a diagram of a compressed ground anchor having two grooves formed in a head thereof. The photo shows the shape of the head.

The compressed ground anchor manufactured using the apparatus of the present invention has a head protrusion 170, an anchor head 110, an injection pipe 120, a spacer 140, and a connection pipe, as shown in FIGS. 9 and 10. 130, a cable hose 150, a PC stranded wire 160, an expandable pack 180, and the like, characterized in that two grooves 113 are formed in the anchor head 110.

The anchor head 110 has a circumferential groove 113 formed between the central dividing wall 112 and the side walls 115 on both sides, and the head protrusion 170 is formed on the dividing wall 112 and the side wall. A head protrusion insertion hole 416 for inserting is formed. Here, the head protrusion 170 serves to increase the adhesion to the anchoring portion of the anchor head 110 by separating the slime and the head in a section in which slime occurs when drilling in soft ground, earth and sand, buried layer.

The injection pipe 120 has a pipe shape and is integrally connected to the anchor head 110 or connected by a fastening assembly or welding, and a plurality of discharge holes 121 are formed in a length direction on a side surface thereof. The spacer 140 is integrally connected between the injection pipe 120 and the connection pipe 130 or connected by fastening assembly or welding, and the groove 142 and the protrusion 141 alternately have a circular wing type. Is formed in the flange shape.

The spacer 140 functions to connect between the injection pipe 120 and the connection pipe 130 or between the connection pipe 130 and another connection pipe 130. Since the spacer 140 protrudes from the middle of the pipe, the attachment surface area of the injection pipe 120, the coated stranded wire 160, and the injection material may be increased to increase the adhesion of the outside of the injection pipe 120 and the shearing force with the inside thereof. have.

The cable hose 150 is installed in plural on the side of the connecting pipe 130, the PC strand wire 160 is inserted therein.

Typically, the stranded wire is drawn out and removed. In order to easily remove the PC stranded wire, grease or the like is applied between the outer circumferential surface or the compressed surface of the coated rigid wire. For this reason, in the past, there was a problem of contamination by grease, but in the present invention, the PC stranded wire 160 is inserted into the cable hose 150 without installing the grease, thereby completely eliminating the problem of contamination by grease. At the same time, it is implemented to facilitate the drawing of the PC strand 160 than the existing method.

The PC strand 160 is wound in the opposite direction along the groove 113 of the anchor head 110 through the groove 142 of the spacer 140 through the cable hose 150 and then the spacer 140. Pass through the other groove 142 of the) through the cable hose 150. In the present invention, the PC strand is used as the coated strand (160), it is composed of a U-turn (Turn) type by the conical groove 113 of the anchor head (110).

The fixing band 161 is configured in a ring shape, and serves to fix the coated strand wire 160 to the injection tube 120 by being inserted into the injection tube 120. At this time, the fixing band 161 is preferably made of a metal material.

The expandable pack 180 surrounds the anchor structure composed of the anchor head 110, the injection pipe 120, the spacer 140, the connecting pipe 130, the PC strand wire 160, and the head protrusion 170. have. The expandable pack 180 is an injection material and an anchor extruded through the discharge holes 111 and 121 of the injection pipe 120 and the anchor head 110 when the grouting hole drilled in the ground is not uniform in size according to the type of the ground. By expanding by the injection material injected from the outside between the structure and the expandable pack 180 to be in close contact with the perforated grouting hole to be solidified, it can have a strong pull resistance.

The compressed ground anchor structure of the configuration injects the injection material between the expandable pack 180 and the anchor structure, and injects the injection material through the connecting pipe 130 to discharge the injection pipe 120 and the anchor head 110. After extruding and solidifying the pack 180 inserted into the grouting hole 230 of the ground by extruding the balls 111 and 121, the PC strand 160 is removed by pressure drawing.

Another embodiment of a compression ground anchor

12 is a configuration diagram showing an example of a compressed ground anchor having one groove formed in the head manufactured by using the apparatus of the present invention, and FIG. 13 is a head shape of the compressed ground anchor having one groove formed in the head. The picture shown.

The compressed ground anchor manufactured using the apparatus of the present invention, as shown in Figs. 12 and 13, the anchor head 410, injection tube 420, spacer 440, cable hose 450, injection hose 470, etc., characterized in that one groove 413 is formed in the anchor head 410.

The anchor head 410 has a columnar groove 413 formed between both sidewalls 415, and both sidewalls 415 are provided with head protrusion insertion holes 416 for inserting head protrusions. have. Here, the head protrusion is installed to increase the adhesion to the anchoring portion of the anchor head 410 by separating the slime and the head in a section in which slime occurs when drilling in soft ground, earth and sand, buried layer.

The injection pipe 420 has a pipe shape and is integrally connected to the anchor head 410 or connected by a fastening assembly or welding, and a plurality of discharge holes 421 are formed at a side surface thereof in a longitudinal direction. The spacer 440 is integrally connected to the injection pipe 420 or connected by fastening assembly or welding, and is formed in a flange shape of a circular wing type in which grooves and protrusions are alternately formed. Since the spacer 440 is formed to protrude in the middle of the pipe, the attachment surface area of the injection tube 420, the PC strand, and the injection material may be increased to increase the attachment force of the outside of the injection tube 420 and the shear force with the inside thereof. The cable hose 450 is provided in plurality in the side of the injection pipe 420, the PC strand is inserted therein.

As described above, in the manufacturing apparatus of the compressed ground anchor according to the present invention, when the head 110 of the anchor touches the fixing plate 350 by the forward operation of the main cylinder 310, the main cylinder 310 is stopped. The auxiliary cylinders 320 and 330 operate to compress the cable hose 150 with the movable rollers 355 and 356, and the cable hoses compressed to the anchor by the fixed rollers 351 to 354 and the movable rollers 355 and 356. After the fixing band 161 is installed on the 150, the main cylinder 310 is reversed to completely remove the anchor from the fixed rollers 351 to 354 and the movable rollers 355 and 356, and then the auxiliary cylinders 320 and 330. By operating a) so that the movable rollers (355, 356) are reversed, all the technical problems of the present invention can be solved.

It will be apparent to those skilled in the art that various modifications and changes can be made in the present invention without departing from the spirit or scope of the present invention as defined by the appended claims. It will be appreciated that such modifications and variations are intended to fall within the scope of the following claims.

The manufacturing apparatus of the compressed ground anchor of the present invention is to prevent the cutting and collapse of slopes and soft grounds when the civil works of industrial complexes such as residential complexes, industrial complexes, railways, highways, tunnels, etc. It can be applied to all anchors for reinforcement.

1 is a cross-sectional view showing a conventional ground anchor

Figure 2 is a schematic diagram showing another conventional ground anchor

3 to 6 is a view for explaining the configuration and operation of the manufacturing apparatus of the compression-type ground anchor according to a preferred embodiment of the present invention,

FIG. 3 is a view showing a state in which a hose 150 having a PC stranded wire 160 is mounted on the head 110 of an anchor installed at the piston 311 of the main cylinder 310.

4 is a view showing a state in which the hose 150 is in close contact with the anchor by the compression of the roller by the forward operation of the main cylinder 310 and the auxiliary cylinder (320,330),

5 is a view showing a state in which the anchor is released from the roller by the backward movement of the main cylinder 310 and the auxiliary cylinders (320,330) after fixing the hose 150 to the anchor in the state of FIG. .

6 is an enlarged perspective view of the state of FIG. 5 from another angle.

7 and 8 are reference pictures of the manufacturing device of the compressed ground anchor of the present invention.

9 and 10 are diagrams showing an example of a compressed ground anchor having two grooves formed in a head manufactured by using the apparatus of the present invention.

11 is a photograph showing the head shape of the compressed ground anchor formed with two grooves in the head

12 is a configuration diagram showing an example of a compressed ground anchor having one groove formed in a head manufactured by using the apparatus of the present invention.

Figure 13 is a photograph showing the head shape of the compression-type ground anchor with one groove formed in the head

[Description of Code for Major Parts of Drawing]

100: ground anchor 110: anchor head

111: discharge hole 112: dividing wall

113: cylindrical groove 114: connection portion

115: side wall 116: head projection insertion hole

120: injection tube 121: discharge hole

130 connector 140 spacer

141: protrusion 142: groove

143: connection portion 144: connection portion

150: cable hose 160: coated stranded wire (PC stranded wire)

161: fixed band 170: head projection

180: expandable pack 200: side wall

210: vertical H beam 211: horizontal beam

220: pressure plate 221: anchor head

230: grouting hole (Hole) 300: manufacturing platform

310: main cylinder 311: piston

320: auxiliary cylinder 321: piston

330: auxiliary cylinder 331: piston

340: hydraulic pump 341: hydraulic main line for forward

342: forward hydraulic auxiliary line 343: backward hydraulic main line

344: reverse hydraulic auxiliary line 345: pressure gauge

346: pressure gauge 350: fixed plate

351 to 354: fixed rollers 355, 356: movable rollers

360: controller 410: anchor head

411: discharge hole 413: cylindrical groove

414: connection 415: side wall

416: head projection insertion hole 420: injection tube

421: discharge hole 430: connector

440: spacer 450: cable hose

460: PC stranded wire (PC stranded wire) 461: fixed band

470: injection hose

Claims (6)

In the manufacturing apparatus of the compressed ground anchor, A main cylinder fitted with an anchor pipe (pipe) to the piston to move forward and backward; A fixed plate for positioning the anchor advanced by the main cylinder; A plurality of fixing rollers fixed to the left and right sides of the fixing plate at regular intervals to squeeze one or a plurality of cable hoses fitted into grooves of the heads of the anchors at both sides to deform firstly; A plurality of movable rollers provided between the fixed rollers on the left and right sides of the fixed plate, respectively, for advancing and retracting by auxiliary cylinders to squeeze the cable hoses installed on the anchors on both sides to deform secondly; And And a hydraulic pump that transmits hydraulic pressure to the main cylinder and the auxiliary cylinder to move the piston forward and backward. When the head of the anchor touches the fixed plate by the forward movement of the main cylinder, the main cylinder stops and the auxiliary cylinder operates to press the cable hose with the movable roller, and the anchor by the fixed roller and the movable roller. After the fixing band is installed on the cable hose squeezed in the main cylinder, the anchor is completely released from the fixed roller and the movable roller by the backward operation of the main cylinder, and then the auxiliary cylinder operates to reverse the movable roller. Apparatus for making compressed ground anchors. The apparatus of claim 1, wherein the compression ground anchor is manufactured by: Forward and reverse hydraulic main lines installed between the hydraulic pump and the main cylinder; Forward and reverse hydraulic auxiliary lines installed between the forward and backward hydraulic main lines and the auxiliary cylinders; And A pressure gauge installed in the forward and backward hydraulic main lines; Apparatus for manufacturing a compressed ground anchor further comprising a. The method of claim 1, wherein the anchor is: Apparatus for manufacturing a compressed ground anchor comprising an anchor head (110) each formed with a circumferential groove (113) between the dividing wall (112) and both side walls (115). The method of claim 1, wherein the anchor is: Apparatus for producing a compressed ground anchor comprising an anchor head (410) formed with one cylindrical groove (413) between both side walls (415). The method of claim 1, The stationary roller and the movable roller is a manufacturing apparatus of the compressed ground anchor, characterized in that consisting of a circular roller integrally formed with grooves corresponding to the size and number of the grooves formed in the anchor head, respectively. The method of claim 1, The fixing band is a manufacturing device of the compressed ground anchors, characterized in that consisting of a metal material.

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