CN217870499U

CN217870499U - Foundation pit supporting structure

Info

Publication number: CN217870499U
Application number: CN202220881885.0U
Authority: CN
Inventors: 刘凯; 王敏文; 刘用政
Original assignee: Fujian Yancheng Construction Engineering Co ltd
Current assignee: Fujian Yancheng Construction Engineering Co ltd
Priority date: 2022-04-16
Filing date: 2022-04-16
Publication date: 2022-11-22
Anticipated expiration: 2032-04-16

Abstract

The application discloses supporting structure for foundation pit relates to the technical field of foundation pit support, including bottom plate, backup pad and bracing piece, the backup pad includes first board and second board, be provided with between first board and the bottom plate and dismantle the coupling assembling of connection on the bottom plate with the first board, the second board lower surface is provided with the grafting piece, first board upper surface is provided with the inserting groove that supplies the grafting piece interference to peg graft, just sliding connection has same strengthening rib on first board and the second board, the both ends of bracing piece can be dismantled respectively and connect on second board and bottom plate. This application can reduce the cost of transportation to excavation supporting construction.

Description

Foundation pit supporting structure

Technical Field

The application relates to the technical field of foundation pit support, in particular to a foundation pit support structure.

Background

In order to protect the side wall of the foundation pit after excavation of the foundation pit, water and soil loss and collapse are not easy to occur on the side wall of the foundation pit, and a supporting structure for supporting the side wall of the foundation pit needs to be installed in the foundation pit.

A foundation pit supporting structure in the related art, referring to fig. 1, includes a bottom plate 1 fixed to the ground, and a supporting plate 2 vertically fixed to the bottom plate 1, the supporting plate 2 is used to abut against the sidewall of the foundation pit, a supporting rod 3 is obliquely fixed between the bottom plate 1 and the supporting plate 2, and two ends of the supporting rod 3 abut against the bottom plate 1 and the supporting plate 2, respectively.

In the process of implementing the application, the inventor finds that at least the following problems exist in the technology, and the foundation pit supporting structure in the related technology needs to occupy a large space during transportation, so that the foundation pit supporting structure needs to be transported by spending more energy, and the transportation cost is large.

SUMMERY OF THE UTILITY MODEL

In order to reduce the cost of transportation to excavation supporting structure, this application provides an excavation supporting structure.

The application provides a foundation ditch supporting construction adopts following technical scheme:

the utility model provides a foundation pit supporting structure, includes bottom plate, backup pad and bracing piece, the backup pad includes first board and second board, be provided with between first board and the bottom plate and dismantle the coupling assembling of connecting on the bottom plate with the first board, the second board lower surface is provided with the grafting piece, first board upper surface is provided with the inserting groove that supplies the grafting piece interference to peg graft, just sliding connection has same strengthening rib on first board and the second board, the both ends of bracing piece can be dismantled respectively and connect on second board and bottom plate.

Through adopting above-mentioned technical scheme, through pegging graft the piece in the inserting groove, make the second board can dismantle to be connected on the first board, and because the first board can dismantle to be connected on the bottom plate, the both ends of bracing piece can be dismantled respectively and be connected on second board and bottom plate, make excavation supporting structure form by each parts concatenation, thereby can reduce the space of placing when the transportation, thereby reduce the cost of transportation to excavation supporting structure, and the strengthening rib can improve the joint strength between first board and the second board.

Optionally, coupling assembling is including setting up the plug connector on first board lateral wall to and set up the connecting seat on the bottom plate lateral wall, plug connector and connecting seat one-to-one, the plug connector is including setting up the pole of wearing to establish on first board lateral wall, and set up in the butt piece of wearing to establish pole lower extreme both sides, the inside cavity of connecting seat, the movable block is worn to be equipped with, two in the equal slip of connecting seat both sides have between the relative one side of movable block and supply to wear to establish the pole and the space that the butt piece together wore to establish, just be provided with between movable block and the connecting seat and be used for driving the movable block to supporting and wear to establish the gliding spring of pole direction tightly, work as when the butt piece was located wearing to establish the pole lateral wall through clearance and movable block butt, first board lower surface butt is in the bottom plate upper surface.

Through adopting above-mentioned technical scheme, through wearing to establish the butt piece between two movable blocks for the first board is low-level on the bottom plate, and the spring can drive the lateral wall that the pole was worn to establish by the movable block butt, makes butt in the movable block lower surface after the butt piece wore to establish the movable block, thereby makes the butt piece be difficult for upwards breaking away from the connecting seat, thereby makes the first board be located on the bottom plate.

Optionally, the abutting block is provided with a guide inclined surface.

Through adopting above-mentioned technical scheme, the direction inclined plane can assist the butt joint piece to wear to establish between the movable block.

Optionally, the lower surface of the first plate is provided with a projection, and the upper surface of the bottom plate is provided with a groove for the projection to be inserted.

Through adopting above-mentioned technical scheme, the lug can improve the stability of being connected between first board and the bottom plate with the recess cooperation.

Optionally, the reinforcing rib side wall is provided with a dovetail-shaped connecting strip, the outer wall of the first plate is provided with a first chute for the connecting strip to penetrate through in a sliding manner, the outer wall of the second plate is provided with a second chute for the connecting strip to slide, and the first chute is communicated with the second chute.

Through adopting above-mentioned technical scheme, the connecting strip is the dovetail for when the connecting strip slides in the second spout in first spout, be difficult for breaking away from first spout and second spout, and make the strengthening rib can high-speed joint on first board and second board.

Optionally, the bottom plate is provided with a through hole for the reinforcing rib to penetrate through, and the lower end of the reinforcing rib is provided with a spine part.

Through adopting above-mentioned technical scheme, the spine portion of strengthening rib lower extreme can squeeze into ground through the through-hole to make backup pad and bottom plate more stable.

Optionally, two opposite extension rods are arranged on the outer walls of the two ends of the supporting rod, the second plate and the outer wall of the bottom plate are provided with enclosing blocks for enclosing the extension rods, the enclosing blocks correspond to the extension rods one to one, positioning bolts penetrate through the enclosing blocks, and threaded grooves for the positioning bolts to be in threaded connection are formed in the second plate and the bottom plate.

Through adopting above-mentioned technical scheme, enclose the chock through will enclosing and close the extension rod after, with positioning bolt to enclosing the chock location for the bracing piece is positioned between second board and the bottom plate, and conveniently demolishs.

Optionally, two end faces of the supporting rod are respectively attached to the outer walls of the second plate and the bottom plate.

Through adopting above-mentioned technical scheme, the both ends face of bracing piece is laminated with second board and bottom plate respectively for the area of contact increase of bracing piece and second board and bottom plate, thereby can improve the support effect of bracing piece.

In summary, the present application includes at least one of the following benefits:

1. the first plate and the second plate are spliced together, the first plate is detachably connected to the bottom plate, and the supporting rods are detachably connected to the second plate and the bottom plate, so that the supporting structure can be split into a plurality of modules during transportation, the transportation space required by each supporting structure is reduced, and the transportation cost of the foundation pit supporting structure can be reduced;

2. the reinforcing ribs are slid on the first plate and the second plate, and the lower portions of the reinforcing ribs are driven into the ground through the through holes, so that the stability of the support plate and the bottom plate can be improved.

Drawings

Fig. 1 is a schematic structural view of the related art;

FIG. 2 is a schematic of the structure of the present implementation;

FIG. 3 is a schematic view of the explosion structure of the present embodiment;

fig. 4 is a sectional view of the connector holder of the present embodiment;

fig. 5 is an enlarged schematic view of a structure at a in fig. 3.

Description of reference numerals: 1. a base plate; 2. a support plate; 201. a first plate; 202. a second plate; 3. a support bar; 4. a connection assembly; 41. a plug-in unit; 411. a connecting rod; 412. a rod is arranged in a penetrating way; 413. a butting block; 42. a connecting seat; 5. an insertion block; 6. inserting grooves; 7. reinforcing ribs; 8. a movable block; 9. a baffle plate; 10. a spring; 11. a guide inclined surface; 12. a bump; 13. a groove; 14. a connecting strip; 15. a first chute; 16. a second chute; 17. a through hole; 18. a spike portion; 19. an extension pole; 20. a surrounding stop block; 21. a baffle cavity; 22. positioning the bolt; 23. a thread groove.

Detailed Description

The present application is described in further detail below with reference to figures 2-5.

The embodiment of the application discloses a foundation pit supporting structure. Referring to fig. 2, the foundation pit supporting structure comprises a bottom plate 1 fixed with the ground through ground nails, a supporting plate 2 is detachably connected to the bottom plate 1, the bottom plate 1 is perpendicular to the supporting plate 2, and a supporting rod 3 is detachably connected between the supporting plate 2 and the bottom plate 1.

Referring to fig. 2 and 3, the supporting plate 2 includes a first plate 201 and a second plate 202 which are spliced together, the first plate 201 and the second plate 202 are both square structures, a vertical downwardly extending plugging block 5 is fixed on the lower surface of the second plate 202, a plugging groove 6 for the plugging block 5 to be plugged in an interference manner is formed in the upper surface of the first plate 201, a rubber layer with certain elasticity is covered on the inner wall of the plugging groove 6, and the rubber layer encloses a space for the plugging block 5 to be plugged in.

Referring to fig. 2 and 3, a vertically downward extending protrusion 12 is fixed on the lower surface of the first plate 201, a groove 13 for inserting the protrusion 12 is formed on the upper surface of the bottom plate 1, a connecting component 4 is arranged between the side wall of the first plate 201 and the side wall of the bottom plate 1, and the connecting component 4 detachably connects the first plate 201 to the bottom plate 1.

Referring to fig. 2 and 3, the connection assembly 4 includes connectors 41 disposed on two opposite sidewalls of the lower end of the first plate 201, and connection sockets 42 disposed on two opposite sidewalls of the bottom plate 1, wherein the connectors 41 correspond to the connection sockets 42 one to one.

Referring to fig. 3 and 4, each plug 41 includes a connecting rod 411 fixed on the outer wall of the first board 201 facing the bottom board 1, a penetrating rod 412 fixed on the connecting rod 411 and extending vertically downward, and two abutting blocks 413 fixed on two opposite side walls of the lower end of the penetrating rod 412 respectively, the lower end of the penetrating rod 412 and the abutting blocks 413 are located below the lower surface of the first board 201, and the abutting blocks 413 are not in contact with the first board 201.

Referring to fig. 3 and 4, the connecting seat 42 has a square structure with a hollow interior, and the upper and lower surfaces of the connecting seat 42 communicate with each other. The two opposite side walls of the connecting seat 42 are provided with the movable blocks 8 in a penetrating manner along the same straight line in a sliding manner, one end of each movable block 8 is always positioned inside the connecting seat 42, and the other opposite end of each movable block is always positioned outside the connecting seat 42. When the two movable blocks 8 slide in the direction away from each other, the space between the opposite surfaces of the two movable blocks 8 allows the penetration rod 412 and the abutment block 413 to pass through together.

Referring to fig. 3 and 4, when the abutting block 413 is completely inserted through the space between the two movable blocks 8, the lower surface of the first plate 201 abuts against the upper surface of the base plate 1. The outer walls of two sides of one end of each movable block 8 in the connecting seat 42 are respectively fixed with a baffle 9, the baffle 9 is provided with a spring 10 between the inner walls of the connecting seat 42, and the elasticity of the spring 10 can drive the two movable blocks 8 to slide and abut against each other in the direction close to each other.

When the abutting block 413 penetrates through the space between the movable blocks 8, the elastic force of the spring 10 can drive the two movable blocks 8 to abut against the outer wall of the penetrating rod 412 respectively, so that the upper surface of the abutting block 413 abuts against the lower surface of the movable block 8, and the movable block 8 prevents the abutting block 413 from moving upwards to separate from the connecting seat 42, so that the first plate 201 is positioned on the bottom plate 1.

Referring to fig. 3 and 4, further, by arranging the two abutting blocks 413 on the rod 412 to have the guiding inclined planes 11 on the sides away from each other, the distance between the two guiding inclined planes 11 is gradually reduced from top to bottom, and under the action of the guiding inclined planes 11, the abutting blocks 413 can more smoothly pass through between the two movable blocks 8.

Referring to fig. 2 and 3, in order to enhance the connection strength between the first plate 201 and the second plate 202, the same vertically arranged reinforcing ribs 7 are slidably connected to the first plate 201 and the second plate 202. The outer wall of the reinforcing rib 7 is fixedly provided with a connecting strip 14 extending along the length direction of the reinforcing rib 7, and the cross section of the connecting strip 14 is in a dovetail shape. Set up the first spout 15 that link up both ends about first board 201 along vertical direction on the first board 201 outer wall, set up the second spout 16 that link up both ends about second board 202 along vertical direction on the second board 202 outer wall, first spout 15 all is used for supplying connecting strip 14 to slide with second spout 16.

When the second plate 202 is connected to the first plate 201, the first sliding groove 15 and the second sliding groove 16 are communicated with each other, and the connecting bar 14 can slide from the first sliding groove 15 to the second sliding groove 16. And when the lower surface of the connecting strip 14 is flush with the lower surface of the first plate 201, the connecting strip 14 is simultaneously positioned in the first sliding groove 15 and the second sliding groove 16, so that the reinforcing ribs 7 can simultaneously support the first plate 201 and the second plate 202, and the joint of the first plate 201 and the second plate 202 is not easy to bend.

Referring to fig. 3, the lower end of the reinforcing rib 7 has a spine portion 18 facing the ground, and the bottom plate 1 is provided with a through hole 17 through which the reinforcing rib 7 is inserted, and the spine portion 18 can penetrate into the bottom wall of the foundation pit through the through hole 17, so that the reinforcing rib 7 is positioned, and the bottom plate 1 can be further positioned.

Referring to fig. 3 and 5, two ends of the support rod 3 are detachably connected to a side of the second plate 202 away from the sidewall of the foundation pit and the upper surface of the bottom plate 1, respectively. Two extension rods 19 are fixed on the outer walls of two ends of the support rod 3, the two extension rods 19 on the outer wall of the inner end of the support rod 3 extend along the same straight line, and the length extension direction of the extension rods 19 is perpendicular to the length extension direction of the support rod 3.

Referring to fig. 2 and 5, the outer wall of the second plate 202 and the upper surface of the bottom plate 1 are detachably connected with the blocking blocks 20 which are in one-to-one correspondence with the extension rods 19, the two ends of the blocking blocks 20 are slidably arranged on the two ends of the blocking blocks 22, the threaded grooves 23 for the threaded connection of the positioning bolts 22 are formed in the upper surfaces of the second plate 202 and the bottom plate 1, and the middle of the blocking blocks 20 is provided with a blocking cavity 21 which is used for surrounding the extension rods 19.

When the supporting rod 3 is disposed obliquely and the two ends of the supporting rod 3 abut against the second plate 202 and the bottom plate 1, the enclosing block 20 is enclosed on the outer wall of the extension rod 19, and the enclosing block 20 is screwed on the second plate 202 and the bottom plate 1, so that the supporting rod 3 is positioned.

Referring to fig. 2 and 3, further, the two support rods 3 are provided, the two support rods 3 are respectively located at two sides of the reinforcing rib 7, and two ends of each support rod 3 are respectively attached to the outer walls of the second plate 202 and the bottom plate 1, so that the support effect of the support rods 3 on the second plate 202 is improved.

The implementation principle of the foundation pit supporting structure in the embodiment of the application is as follows: the abutting block 413 of the first plate 201 is inserted through the connecting seat 42, so that the upper surface of the abutting block 413 abuts against the lower surface of the movable block 8, and the first plate 201 is installed on the bottom plate 1. The inserting block 5 is inserted into the inserting groove 6, so that the second board 202 is installed on the first board 201, then the supporting rod 3 is obliquely placed between the second board 202 and the bottom board 1, so that two ends of the supporting board 2 are abutted against the outer walls of the second board 202 and the bottom board 1, and the extending rod 19 is positioned through the surrounding stop block 20, so that the supporting rod 3 is positioned. And finally, the supporting plate 2 is abutted against the side wall of the foundation pit, the bottom plate 1 is positioned on the bottom wall of the foundation pit by using ground nails, the connecting strip 14 is slid into the first plate 201 and the second plate 202, and the lower end of the reinforcing rib 7 penetrates through the bottom plate 1 and is driven into the ground.

The above are preferred embodiments of the present application, and the scope of protection of the present application is not limited thereto, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a foundation ditch supporting construction, includes bottom plate (1), backup pad (2) and bracing piece (3), its characterized in that: backup pad (2) include first board (201) and second board (202), be provided with between first board (201) and bottom plate (1) and dismantle coupling assembling (4) of connecting on bottom plate (1) first board (201), second board (202) lower surface is provided with plug block (5), first board (201) upper surface is provided with plug slot (6) that supply plug block (5) interference to peg graft, just sliding connection has same strengthening rib (7) on first board (201) and second board (202), the both ends of bracing piece (3) can be dismantled respectively and connect on second board (202) and bottom plate (1).

2. A foundation pit supporting construction according to claim 1, wherein: coupling assembling (4) including setting up plug connector (41) on first board (201) lateral wall to and set up connecting seat (42) on bottom plate (1) lateral wall, plug connector (41) and connecting seat (42) one-to-one, plug connector (41) are including connecting wearing to establish pole (412) on first board (201) lateral wall to and set up in butt piece (413) of wearing to establish pole (412) lower extreme both sides, connecting seat (42) inside cavity, connecting seat (42) both sides all slide and wear to be equipped with movable block (8), two have between the relative one side of movable block (8) and supply to wear to establish pole (412) and butt piece (413) together the space of wearing to establish, just be provided with between movable block (8) and connecting seat (42) and be used for driving movable block (8) to support and wear to establish pole (412) direction gliding spring (10), work as butt piece (413) are when wearing to establish pole (412) lateral wall through clearance and movable block (8) butt, first board (201) lower surface butt is located bottom plate (1).

3. A foundation pit supporting construction according to claim 2, wherein: the abutting block (413) is provided with a guide inclined surface (11).

4. A foundation pit supporting construction according to claim 1, wherein: the lower surface of the first plate (201) is provided with a convex block (12), and the upper surface of the bottom plate (1) is provided with a groove (13) for the convex block (12) to be inserted.

5. A foundation pit supporting construction according to claim 1, wherein: the reinforcing rib (7) is provided with dovetail-shaped connecting strips (14) on the side wall, a first sliding groove (15) for the connecting strips (14) to slide and penetrate is formed in the outer wall of the first plate (201), a second sliding groove (16) for the connecting strips (14) to slide is formed in the outer wall of the second plate (202), and the first sliding groove (15) is communicated with the second sliding groove (16).

6. A foundation pit supporting construction according to claim 5, wherein: the bottom plate (1) is provided with a through hole (17) for the reinforcing rib (7) to penetrate through, and the lower end of the reinforcing rib (7) is provided with a spine part (18).

7. A foundation pit supporting construction according to claim 1, wherein: all be provided with two relative extension rod (19) on bracing piece (3) both ends outer wall, all be provided with on second board (202) and bottom plate (1) outer wall and be used for enclosing dog (20) of enclosing that closes extension rod (19), enclose dog (20) and extension rod (19) one-to-one, just wear to be equipped with positioning bolt (22) on enclosing dog (20), all be provided with on second board (202) and bottom plate (1) and supply positioning bolt (22) threaded connection's thread groove (23).

8. A foundation pit supporting construction according to claim 7, wherein: two end faces of the support rod (3) are respectively attached to the outer walls of the second plate (202) and the bottom plate (1).