CN110761297A

CN110761297A - Supporting device for construction of civil bridge

Info

Publication number: CN110761297A
Application number: CN201911066093.7A
Authority: CN
Inventors: 陈铁; 向敏; 李玉学
Original assignee: Shijiazhuang Tiedao University
Current assignee: Shijiazhuang Tiedao University
Priority date: 2019-11-04
Filing date: 2019-11-04
Publication date: 2020-02-07
Anticipated expiration: 2039-11-04
Also published as: CN110761297B

Abstract

The invention discloses a supporting device for construction of a soil-wood bridge, and relates to the technical field of civil construction. When the support is used as an inclined rod support, the main inclined support is in contact with the bottom surface of a foundation pit to insert the support pile into the lantern ring at the bottom end of the main inclined support, the auxiliary inclined support is abutted against the column pile, the column pile is not prone to deformation and inclination under the action of three supporting points, and when the support is used as an anchor pull support, the main inclined support rotates to the ground outside the foundation pit to enable the auxiliary inclined support to be in contact with the ground so as to insert the support pile into the lantern ring at the tail end of the auxiliary inclined support, so that the column pile is pulled. The supporting device can be switched between the inclined rod support and the anchor support to meet the site requirement, so that different forms of supporting equipment are prevented from being prepared in advance by a construction unit, and a large amount of cost is saved.

Description

Supporting device for construction of civil bridge

Technical Field

The invention relates to the technical field of civil construction, in particular to a supporting device for construction of an earth-wood bridge.

Background

The foundation pit excavation in the bridge construction is firstly required in the project process, the pedestal pouring can be carried out after the foundation pit excavation is finished, and the prefabricated or cast-in-place beam can be supported by pouring the pier on the pedestal. The supporting work in the excavation process of the foundation pit has great influence on the excavation progress and quality of the foundation pit, and the selection of a proper supporting mode according to the site condition and the project requirement is very critical.

The common foundation pit supporting modes at present comprise inclined column supporting, anchor supporting, concrete pouring pile and concrete spraying supporting and the like, and the foundation pit depth in bridge construction is not large, so that the common foundation pit supporting mode is more suitable for supporting modes using the inclined column supporting and the anchor supporting. In the inclined column support, inclined supports and short piles are required to be arranged in the foundation pit for supporting the soil retaining plate, and the inclined column support has the advantages of stable support and convenience in operation; in the anchoring support, the anchoring pile is nailed in the soil outside the foundation pit, and the anchor pile and the soil retaining plate are connected by the pull rod, so that the anchor support has the advantages of not occupying the space of the foundation pit and being suitable for the foundation pit which can not be provided with the inclined strut or the cross strut.

However, the two supporting methods are used separately, and most of the used equipment cannot be used in the two supporting methods, which requires that a construction unit needs to prepare equipment matched with the two supporting methods, and selects one of the supporting methods when the supporting equipment is actually used, which undoubtedly increases the cost of the construction unit.

Disclosure of Invention

The embodiment of the invention provides a supporting device for construction of an earth-wood bridge, which can solve the problems in the prior art.

The invention provides a supporting device for construction of an earth-wood bridge, which comprises a column pile, a soil retaining plate and a main inclined strut, wherein the soil retaining plate is fixedly arranged on one side of the column pile, a sliding box is fixedly arranged on one side of the column pile, which is opposite to the soil retaining plate, the top end of the main inclined strut is arranged in the sliding box, the supporting device also comprises an auxiliary inclined strut, one end of the auxiliary inclined strut is rotatably connected to the lower end of the main inclined strut, an auxiliary lantern ring is rotatably arranged at the tail end of the auxiliary inclined strut, a main lantern ring is rotatably arranged at the lower end of the main inclined strut, and the main lantern ring and the auxiliary lantern ring are both used for sleeving a supporting pile.

The invention provides a supporting device for construction of an earth-wood bridge, which comprises a column pile, a soil retaining plate, a main inclined strut and an auxiliary inclined strut, wherein the soil retaining plate is fixedly arranged on one side of the column pile, a sliding box is fixedly arranged on the other side of the column pile, the top end of the main inclined strut is slidably arranged in the sliding box, the main inclined strut can adjust the height and the inclination angle up and down in the sliding box, the auxiliary inclined strut is rotatably arranged at the bottom end of the main inclined strut, and lantern rings are arranged at the tail end of the auxiliary inclined strut and the bottom end of the main inclined strut and used for inserting and connecting supporting columns. When the anchor is used as an anchor pull support, the main inclined support slides to the top end of the sliding box and rotates to the ground outside the foundation pit, so that the auxiliary inclined support is in contact with the ground and the support pile is inserted into the lantern ring at the tail end of the auxiliary inclined support, and the column pile is pulled. The supporting device can be switched between the inclined rod support and the anchor support to meet the site requirement, so that different forms of supporting equipment are prevented from being prepared in advance by a construction unit, and a large amount of cost is saved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic view of a supporting device for construction of an earth-wood bridge provided in an embodiment of the present invention in a batter post supporting state;

FIG. 2 is a schematic view of a slide cassette;

FIG. 3 is a schematic structural view of the main diagonal bracing top end sliding assembly;

FIG. 4 is a schematic structural view of the joint of the main diagonal brace and the auxiliary diagonal brace;

figure 5 is a schematic view of the support device in an anchor-pulled supporting state.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, the embodiment of the present invention provides a supporting device for construction of a soil-wood bridge, including a column 100, a retaining plate 200, and a main diagonal brace 300, where the column 100 is a vertical rod, and a plurality of horizontal partitions are fixedly installed on one side of the column, the retaining plate 200 is installed on a side of the partitions opposite to the column 100, and the bottom end of the column 100 is in a pointed cone shape, so as to be conveniently inserted into a soil body at the bottom of a foundation pit. It should be understood that the number of the piles 100 is plural, the piles 100 are inserted at the edge of the bottom of the foundation pit, the retaining plates 200 face the side of the foundation pit, the side formed by connecting the retaining plates 200 blocks one or more sides of the foundation pit, the backfilled soil can be filled between the side of the foundation pit and the retaining plates 200, the retaining plates 200 can block and stabilize the soil under the support of the piles 100, and the backfilled soil or the soil at the side of the foundation pit is collapsed into the foundation pit.

The top end of the side of the pile 100 facing away from the soil guard 200 is fixedly installed with a slide box 110, the horizontal section of the slide box 110 is U-shaped, the space of the U-shape faces the direction facing away from the pile 100, and the top end of the main diagonal brace 300 is slidably installed inside the slide box 100. The bottom end of the main diagonal brace 300 is provided with a main collar 310, and the main collar 310 is used for sleeving the support pile 500. After the top end of the main diagonal brace 300 slides and is positioned in the slide box 110, the bottom end of the main diagonal brace 300 contacts the bottom surface of the foundation pit, the support pile 500 is inserted into the main sleeve ring 310 and is inserted into the bottom surface of the foundation pit, so that the support pile 500 plays a role in supporting the main diagonal brace 300 under the connection action of the main sleeve ring 310, and the main diagonal brace 300 provides a support force for the column pile 100 to keep the column pile 100 in a vertical state all the time.

Of course, in other embodiments, the primary collar 310 may not be used, and the primary brace 300 may be directly supported on the support pile 500.

Since the height of the pile 100 is relatively large and the supporting points of the pile 100 from the outside are only located at the top and bottom ends of the pile 100 in the above-mentioned supporting device, the central portion of the pile 100 is easily deformed by the extrusion of the backfill soil. In order to avoid this, the supporting device provided in the embodiment of the present invention further includes a secondary inclined strut 400, wherein one end of the secondary inclined strut 400 is installed at the lower end of the primary inclined strut 300, and after the primary inclined strut 300 is installed in place, the secondary inclined strut 400 is abutted against the lower part of the stopper 120 on the column pile 100, so that the secondary inclined strut 400 can support the central part of the column pile 100.

Referring to fig. 2 and 3, the slide cassette 110 includes two slide plates 111 and two connection plates 112, and the connection plates 112 are vertically and fixedly connected between the two slide plates 111. In this embodiment, the two sliding plates 111 have the same length and are located at the same height, the length of the connecting plate 112 is smaller than the length of the sliding plate 111, and the connecting plate 112 is flush with the bottom of the sliding plate 111, so that a gap is formed between the upper side of the connecting plate 112 and the two sliding plates 111, and the bottom end of the gap (i.e., the top end of the connecting plate 112) is at least as high as the top end of the stud 100.

The two sliding plates 111 are respectively provided with a sliding chute 113 on opposite side surfaces, the two sliding chutes 113 have the same size and correspond to each other in position, and the height of the top end of each sliding chute 113 is at least greater than that of the top end of the connecting plate 112.

The top end of the main inclined strut 300 is provided with a sliding assembly, and the sliding assembly is arranged inside the sliding box 110, so that the top end of the main inclined strut 300 can slide up and down inside the sliding box 110. The sliding assembly includes a sliding plate 320, the length of the sliding plate 320 in the horizontal direction is equivalent to the distance between the two sliding plates 111, and sliding rods 321 are respectively installed at corresponding positions on two opposite side surfaces of the sliding plate 320, and the sliding rods 321 can be rotatably or fixedly installed on the side surfaces of the sliding plate 320. In this embodiment, the sliding rod 320 is a cylindrical rod, and the axial direction of the cylindrical rod is perpendicular to the side surface of the sliding plate 320, and the diameter of the cylindrical rod is equivalent to the width of the sliding slot 113 on the sliding plate 111, so as to facilitate the rotation of the sliding plate 320.

The main inclined strut 300 is mounted on a side surface of the sliding plate 320 between the two sliding bars 321, specifically, a pair of mounting lugs 322 is fixedly mounted on a side surface of the sliding plate 320, and a top end of the main inclined strut 300 is rotatably mounted between the two mounting lugs 322, although the top end of the main inclined strut 300 may also be fixedly mounted on the sliding plate 320.

The sliding bars 321 on both sides of the sliding plate 320 are respectively inserted into the sliding slots 113 of the two sliding plates 111, so that the sliding plate 320 can slide up and down inside the sliding box 110, and further, the main inclined strut 300 is driven to slide. The connecting plate 112 is provided with a plurality of positioning holes 114 which are arranged uniformly from top to bottom, and when the sliding plate 320 slides in the slide cartridge 110 until needed, the positioning pin or the positioning plate is inserted into the positioning hole 114 which is nearest above the sliding plate 320, so that the sliding plate 114 can be blocked to prevent the sliding plate from sliding upwards.

Referring to fig. 4, the auxiliary diagonal brace 400 is rotatably connected to the bottom end of the main diagonal brace 300, the bottom end of the main diagonal brace 300 is provided with two oppositely arranged insertion pieces 330, a socket is formed between the two insertion pieces 330, one end of the auxiliary diagonal brace 400 is provided with a plug 420 with a width corresponding to the width of the socket, and the plug 420 is inserted into and rotatably installed in the socket. The main lantern ring 310 is rotatably connected to the outer side surface of the main inclined strut 300, and the main lantern ring 310 is provided with a lantern hole 311 for inserting the support pile 500.

In the embodiment of the present invention, the sub brace 400 is provided at the end thereof with a sub collar 410, and the structure of the sub collar 410 and the manner of mounting the sub brace 400 on the sub brace 400 are the same as those of the main collar 310, and thus, detailed description thereof will be omitted.

In the occasion of allowing the diagonal brace to exist in the foundation pit, the column 100 is inserted into the soil body on the bottom surface of the foundation pit until the soil retaining plate 200 contacts the bottom surface of the foundation pit, then the sliding plate 320 is slid to a proper height so that the main diagonal brace 300 can contact the bottom surface of the foundation pit and can keep a larger included angle with the column 100, then the sliding plate 320 is positioned, the main lantern ring 310 is rotated to a horizontal position, the support pile 500 is inserted into the trepan of the main lantern ring 310, the main diagonal brace 300 is kept in close contact with the support pile 500, and finally the auxiliary diagonal brace 400 is abutted under the stopper 120. Backfilling the excavated soil body to the position between the soil retaining plate 200 and the side surface of the foundation pit, and keeping the column pile 100 stable under the action of the three supporting points.

In the situation that the diagonal brace is not allowed to exist in the foundation pit, the sliding plate 320 is slid to the highest position in the sliding box 110, then the main diagonal brace 300 is rotated anticlockwise to the notch at the top of the sliding box 110, at the moment, the main diagonal brace 300 is supported by the top of the stud 100, then the auxiliary diagonal brace 400 is rotated anticlockwise to the position contacting with the soil outside the foundation pit, the auxiliary lantern ring 410 is rotated to the horizontal position, the support pile 500 is inserted into the auxiliary lantern ring 410 and inserted into the soil, and the stud 100 is pulled by the auxiliary diagonal brace 400 and the main diagonal brace 300, so that the stud 100 is prevented from being deformed or inclined. As shown in fig. 5.

The above disclosure is only for a few specific embodiments of the present invention, however, the present invention is not limited to the above embodiments, and any variations that can be made by those skilled in the art are intended to fall within the scope of the present invention.

Claims

1. The utility model provides a timbering device is used in construction of building bridge, includes the post, keeps off native board and main bracing, keep off one side of native board fixed mounting at the post, the post is back to one side fixed mounting who keeps off native board and is had smooth casket, install in this smooth casket on the top of main bracing, its characterized in that still includes vice bracing, the one end of vice bracing is rotated and is connected the lower extreme of main bracing, vice lantern ring is installed in the terminal rotation of vice bracing, the main lantern ring is installed in the lower extreme rotation of main bracing, the main lantern ring all is used for cup jointing the support stake with vice lantern ring.

2. A supporting device for construction of an earth and wood bridge as claimed in claim 1, wherein said slide box comprises two slide plates and a connecting plate, said connecting plate is fixedly connected between two of said slide plates;

the two sliding plates are respectively provided with a sliding groove on the opposite side faces, the top end of the main inclined strut is provided with a sliding assembly, the sliding assembly comprises sliding plates, the two opposite side faces of each sliding plate are respectively provided with a sliding rod, the main inclined strut is arranged on the side face between the two sliding rods on the sliding plate, the sliding rods on the two sides of the sliding plate are respectively inserted into the sliding grooves on the two sliding plates, so that the sliding plates slide up and down in the sliding box, and the main inclined strut is driven to slide.

3. A supporting device for construction of an earth-wood bridge as claimed in claim 2, wherein the top end of said sliding chute is at least higher than the top end of said connecting plate, two of said sliding plates are the same length and are at the same height, the length of said connecting plate is less than the length of the sliding plate, and the bottom of said connecting plate and the bottom of the sliding plate are flush, so that a gap is formed between the top of said connecting plate and two of said sliding plates, and the bottom end of said gap is at least as high as the top end of the pile.

4. A supporting device for civil bridge construction according to claim 2 wherein the slide bar is fixedly mounted on the side of the slide plate, the slide bar is a cylindrical bar whose axial direction is perpendicular to the side of the slide plate and whose diameter is equivalent to the width of the chute on the slide plate.

5. A supporting device for the construction of an earth and wood bridge as claimed in claim 2, wherein a pair of mounting lugs is fixedly mounted on one side surface of said sliding plate, and the top end of said main diagonal brace is rotatably mounted between said two mounting lugs.

6. A supporting device for construction of an earth-wood bridge as claimed in claim 2, wherein said connecting plate is provided with a plurality of positioning holes arranged from top to bottom for inserting positioning pins to position said sliding plate.

7. A supporting device for the construction of an earth-wood bridge as claimed in claim 1, wherein the bottom end of the main diagonal brace is provided with two oppositely arranged inserting pieces, a socket is formed between the two inserting pieces, one end of the auxiliary diagonal brace is provided with a plug with a width corresponding to the width of the socket, and the plug is inserted into and rotatably installed in the socket.

8. A supporting device for an earth-wood bridge construction according to claim 1, wherein a stopper is fixed to a side of the pile facing away from the soil retaining plate, and a tip of the sub-diagonal brace abuts against a lower side of the stopper when the supporting device is used in a diagonal bracing manner.

9. A supporting device for the construction of an earth-wood bridge as claimed in claim 1, wherein a plurality of horizontal partitions are installed on one side of the piles in a row from top to bottom, and the retaining plates are installed on the side of the partitions opposite to the piles.