CN106120699B - One kind building composite foundation - Google Patents

Abstract

A building composite foundation, comprising a concrete pouring layer, a foundation layer, and a cushion layer arranged from top to bottom, foundation piles are arranged at the lower part of the cushion layer, the foundation piles are hollow cylinders, the foundation piles can be filled with concrete, and the foundation piles Inserted into the soil between the piles, the lower end of the foundation pile is a closed tip, and several vertical strip-shaped gaps are opened on the outer periphery of the side of the foundation pile. There are several rows of strip-shaped gaps from top to bottom, and every two strips in each row The part between the shaped gaps forms a hanging piece, the upper part of the hanging piece is integrally connected with the foundation pile, and the lower end of the hanging piece is integrally connected with the foundation pile through a connecting strip. In the present invention, after the foundation pile is inserted into the ground, the hanger can be unfolded, thereby increasing the contact area between the foundation pile and the soil between the piles. Due to the structure of the inverted tooth formed by the hanging piece, the stability can be improved.

Description

A building composite foundation

technical field

The invention belongs to the field of civil engineering, in particular to a building composite foundation.

Background technique

In civil engineering, the foundation is an important part of the stability of the building. At present, the foundation piles of the foundation of the building are directly inserted into the ground, and will be slightly deflected after receiving the lateral force of the building on the ground. The ground contact area between the foundation pile and the ground is limited, so it needs to be inserted deeper or use a larger number.

Contents of the invention

The invention provides a building composite foundation to solve the defects in the prior art.

The present invention is achieved through the following technical solutions:

A building composite foundation, comprising a concrete pouring layer, a foundation layer, and a cushion layer arranged from top to bottom, foundation piles are arranged at the lower part of the cushion layer, the foundation piles are hollow cylinders, the foundation piles can be filled with concrete, and the foundation piles Inserted into the soil between the piles, the lower end of the foundation pile is a closed tip, and several vertical strip-shaped gaps are opened on the outer periphery of the side of the foundation pile. There are several rows of strip-shaped gaps from top to bottom, and every two strips in each row The part between the shaped gaps forms a hanging piece, the upper part of the hanging piece is integrally connected with the foundation pile, the lower end of the hanging piece is integrally connected with the foundation pile through a connecting strip, the center of the foundation pile is provided with a central column, and the lower end of the central column Cooperate with the bottom of the foundation pile; it also includes a sliding sleeve set on the center column, and the outer circumference of the sliding sleeve is respectively provided with several first cylinders and several third cylinders with piston rods facing outward, the number of the first cylinder and the third cylinder Similarly, a first cylinder and a third cylinder are located on the same plane, the position of the first cylinder is higher than that of the third cylinder, the piston rod of the first cylinder is equipped with a push block, and the push block faces the hanger, and the piston rod of the third cylinder A cutting motor is installed on the top, the output shaft of the cutting motor is connected to the rotating shaft of the cutting disc, and the cutting disc can cooperate with the connecting strip at the lower part of the hanging piece; the upper part of the sliding sleeve is connected to one end of the stay rope, and the upper end of the stay cord is located outside the upper end of the foundation pile.

In the construction compound foundation as described above, the outer periphery of the sliding sleeve is equipped with several second cylinders with piston rods facing outwards, the second cylinders are located between adjacent first cylinders, and the piston rods of the second cylinders are equipped with wheel A roller motor is installed on the wheel frame, the output shaft of the roller motor is connected to the roller, and a vertical guide strip is fixedly installed on the inner wall of the foundation pile. The guide strip is located between the hanging pieces, and the roller can cooperate with the guide strip; There are several bumps, the bumps are arranged up and down, the roller can be locked by the bumps, and when the roller is stuck, the cutting disc can cooperate with the connecting strip at the lower part of the hanging piece.

According to the building composite foundation described above, the section of the push block is trapezoidal, and the length of the upper bottom of the trapezoid is smaller than the length of the lower bottom.

The advantages of the present invention are: in the present invention, after the foundation pile is inserted into the ground, the hanging piece can be unfolded, thereby increasing the contact area between the foundation pile and the soil between the piles, and the foundation pile receives the pulling force transmitted from the superstructure Or when swinging sideways, the stability can be improved due to the inverted tooth structure formed by the hanging piece. Compared with other composite foundations, the present invention can reduce the number of foundation piles by 1/2 and the insertion depth of foundation piles by 1/2 on the basis of the same stability, thereby effectively saving materials.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are some embodiments of the present invention. For those skilled in the art, other drawings can also be obtained according to these drawings without any creative effort.

Fig. 1 is a schematic structural view of the present invention; Fig. 2 is a schematic structural view of foundation pile 5; Fig. 3 is an enlarged view of the A direction view of Fig. 2; Fig. 4 is a sectional view along Fig. 3B-B line; Fig. 5 is a sectional view of Fig. 3 Ⅰ Partial enlarged view; FIG. 6 is a structural schematic diagram of the foundation pile 5 in use.

Drawing number marked: 1 Concrete pouring layer, 2 Foundation layer, 3 Cushion layer, 4 Soil between piles, 5 Foundation piles, 6 Hanging pieces, 7 Strip-shaped gaps, 8 Connecting strips, 9 Center columns, 10 Sliding sleeves, 11 Section One cylinder, 12 push blocks, 13 cutting discs, 14 second cylinders, 15 third cylinders, 16 cutting motors, 17 wheel frames, 18 rollers, 19 projections, 20 guide strips, 21 roller motors, 22 stay ropes.

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

A building composite foundation, as shown in the figure, includes a concrete pouring layer 1, a foundation layer 2, and a cushion layer 3 arranged from top to bottom, and the bottom of the cushion layer 3 is provided with a foundation pile 5, and the foundation pile 5 is a hollow column body, the foundation pile 5 can be filled with concrete, the foundation pile 5 is inserted into the soil 4 between the piles, the lower end of the foundation pile 5 is a closed tip, and several vertical strip-shaped gaps 7 are opened on the outer periphery of the side of the foundation pile 5. There are several rows of strip-shaped gaps 7 from top to bottom, and the part between every two strip-shaped gaps 7 in each row forms a hanging piece 6. The upper part of the hanging piece 6 is integrated with the foundation pile 5, and the lower end of the hanging piece 6 is connected to the foundation The piles 5 are integrally connected by connecting strips 8, and the center of the foundation pile 5 is provided with a center column 9, and the lower end of the center column 9 matches the bottom of the foundation pile 5; it also includes a sliding sleeve 10 set on the center column 9, sliding The outer circumference of the cover 10 is respectively provided with several first cylinders 11 and several third cylinders 15 with piston rods facing outwards. The number of the first cylinders 11 and the third cylinders 15 is the same. On the same plane, the position of the first cylinder 11 is higher than the position of the third cylinder 15, the piston rod of the first cylinder 11 is equipped with a push block 12, and the push block 12 faces the hanging piece 6, and the cutting motor 16 is installed on the piston rod of the third cylinder 15 , the output shaft of the cutting motor 16 is connected to the rotating shaft of the cutting disc 13, and the cutting disc 13 can be matched with the connecting bar 8 at the bottom of the hanging piece 6; outside of the upper end. In the present invention, after the foundation pile 5 is inserted into the ground, the hanging piece 6 can be expanded, thereby increasing the contact area between the foundation pile 5 and the soil 4 between the piles, and the foundation pile 5 is subjected to the pulling force transmitted from the superstructure or When swinging down, the stability can be improved due to the inverted tooth structure formed by the hanging piece 6 . Compared with other composite foundations, the present invention can reduce the number of foundation piles 5 by 1/2 and the insertion depth of foundation piles 5 by 1/2 on the basis of the same stability, effectively saving materials.

Specifically, in order to further improve stability, the piston rods installed on the outer periphery of the sliding sleeve 10 described in this embodiment are several second cylinders 14 facing outward, and the second cylinders 14 are located between adjacent first cylinders 11. Wheel frame 17 is installed on the piston rod of cylinder 14, and roller motor 21 is installed on wheel frame 17, and the output shaft of roller motor 21 is connected roller 18, and vertical guide bar 20 is fixedly installed on the inner wall of foundation pile 5, and guide bar 20 is positioned at hanging The position between the sheets 6, the roller 18 can cooperate with the guide strip 20; the guide strip 20 is provided with several bumps 19, the bumps 19 are arranged up and down, the roller 18 can be locked by the bump 19, and the roller 18 is stuck in the state , the cutting disc 13 can cooperate with the connecting strip 8 at the bottom of the hanging piece 6 . Further guidance in the vertical direction is provided by rollers 18 . During the cutting process and the process of pushing the hanging piece 6, the roller 18 is locked by the protrusion 19, and the position of the sliding sleeve 10 remains stable, which facilitates the operation of the above process. When sliding downwards or upwards, the second cylinder 14 is reclaimed, so that the roller 18 is no longer engaged with the projection 19, and can move under the pulling of the stay cord 22 or the situation of setting out the line. The roller 18 itself has its own power, which can be driven to move up earlier along the inner wall of the foundation pile 5, reducing the tension of pulling the stay cord 22, and making the movement more convenient.

Specifically, in order to be evenly stressed during the process of pushing the hanging piece 6, the cross section of the push block 12 described in this embodiment is trapezoidal, and the length of the upper bottom of the trapezoid is smaller than the length of the lower bottom. The trapezoidal structure can make the hanging pieces 6 that are pushed open spread evenly, avoid deformation of the middle part, and make the hanging pieces 6 correctly form an inclined plane after being pushed away.

The process of using the present invention is, under the state shown in Figure 2, the foundation pile 5 is now driven into the ground, and the sliding sleeve 10 is driven by the stay rope 22 to move downward along the center column 9, and each layer of strip-shaped gap 7 is reached. At the same time, the third cylinder 15 pushes outward, and the cutting motor 16 rotates to drive the cutting disc 13 to cut off the connecting strip 8; the first cylinder 11 pushes the push block 12 outward to push the hanging piece 6 outward, forming the state shown in Figure 6 , the force of extrusion exceeds the pressure formed by the soil 4 between the piles. During general operation, first operate from the bottom strip gap 7, part of the soil between the piles 4 will fall into the foundation pile 5, after completion, fill the concrete into the foundation pile 5, and then pour the concrete layer 1, foundation layer 2. The cushion layer 3 is prepared according to the existing technology.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: it can still be Modifications are made to the technical solutions described in the foregoing embodiments, or equivalent replacements are made to some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims (3)

1. one kind building composite foundation, it is characterised in that：Including the concrete lift arranged from top to bottom（1）, basal layer （2）, mattress layer（3）, mattress layer（3）Bottom be provided with foundation pile（5）, foundation pile（5）For hollow cylinder, foundation pile（5）Interior energy Enough fill concretes, foundation pile（5）It is inserted into inter-pile soil（4）It is interior, foundation pile（5）Lower end for closing tip, foundation pile（5） Sidepiece periphery open up several vertical strip crevices（7）, strip crevice（7）There are several rows from top to bottom, every two of each row Strip crevice（7）Between part formed lacing film（6）, lacing film（6）Top and foundation pile（5）Integration connection, lacing film（6）'s Lower end and foundation pile（5）Between pass through connection strap（8）Integrally connected, foundation pile（5）Center at be provided with center pillar（9）, center pillar（9） Lower end and foundation pile（5）Bottom coordinate；Also include being sleeved on center pillar（9）On slip cap（10）, slip cap（10）Periphery It is respectively equipped with several first cylinders of piston rod outwardly（11）With several 3rd cylinders（15）, the first cylinder（11）With the 3rd gas Cylinder（15）Quantity is identical, first cylinder（11）With the 3rd cylinder（15）It is generally aligned in the same plane, the first cylinder（11）'s Position is higher than the 3rd cylinder（15）Position, the first cylinder（11）Piston rod installation pushing block（12）, pushing block（12）Towards lacing film （6）, the 3rd cylinder（15）Piston rod on cutting motor is installed（16）, cutting motor（16）Output axis connection chopping disk（13） Rotating shaft, chopping disk（13）Can be with lacing film（6）The connection strap of bottom（8）Coordinate；Slip cap（10）Top connection stay cord （22）One end, drawstring（22）Upper end be located at foundation pile（5）Upper end outside.

A kind of 2. building composite foundation according to claim 1, it is characterised in that：Described slip cap（10）Install periphery Piston rod several second cylinders outwardly（14）, the second cylinder（14）Positioned at the first adjacent cylinder（11）Between, the second cylinder （14）Piston rod on wheel carrier is installed（17）, wheel carrier（17）Upper installation roller motor（21）, roller motor（21）Output shaft connect Connect roller（18）, foundation pile（5）Inwall on vertical gib block is fixedly mounted（20）, gib block（20）Positioned at lacing film（6）It Between position, roller（18）Can be with gib block（20）Coordinate；Gib block（20）It is provided with several projections（19）, projection（19）On Lower arrangement, roller（18）Can be by projection（19）Card master, roller（18）It is stuck under state, chopping disk（13）Can be with lacing film（6） The connection strap of bottom（8）Coordinate.

A kind of 3. building composite foundation according to claim 1, it is characterised in that：Described pushing block（12）Section for ladder Shape, the length at trapezoidal upper bottom are less than the length of bottom.