CN216275731U

CN216275731U - Deep foundation pit supporting structure

Info

Publication number: CN216275731U
Application number: CN202122712907.9U
Authority: CN
Inventors: 姚子健; 陈佳鑫; 刘耀辉
Original assignee: Dongguan Guangqu Construction Engineering Co ltd
Current assignee: Dongguan Guangqu Construction Engineering Co ltd
Priority date: 2021-11-08
Filing date: 2021-11-08
Publication date: 2022-04-12
Anticipated expiration: 2031-11-08

Abstract

The utility model discloses a deep foundation pit supporting structure, which relates to the technical field of foundation pit supporting, and aims at solving the problems that the existing foundation pit supporting cannot deal with foundation pits with different depths and the practicability is lower. The utility model has novel structure, can adjust the height of the supporting and protecting plate, is convenient to deal with foundation pits with different depths, strengthens the supporting and protecting strength, stabilizes the safety of the foundation pit and eliminates the hidden trouble of foundation pit engineering.

Description

Deep foundation pit supporting structure

Technical Field

The utility model relates to the technical field of foundation pit supporting, in particular to a deep foundation pit supporting structure.

Background

The foundation pit supporting is a temporary retaining, reinforcing, protecting and underground water controlling measure adopted for the foundation pit in order to ensure the safety of underground structure construction and the surrounding environment of the foundation pit, and a foundation pit supporting structure system generally comprises two parts, namely a retaining structure and a precipitation and water stopping system. Pile and wall type supporting structures often adopt steel sheet piles, reinforced concrete sheet piles, column-column type cast-in-place piles, underground continuous walls and the like. According to the soil condition and the size of the foundation pit, the foundation pit can be designed to be cantilever type, inner support type or anchor type. The gravity type supporting structure mostly adopts a cement soil mixing pile retaining wall, a soil nailing wall and the like. When the supporting structure can not play the role of water stop, a water stop curtain can be arranged or precipitation outside the pit is adopted at the same time so as to achieve the purpose of controlling underground water, so that the foundation pit earthwork engineering can be excavated under the dry operation condition.

Can set up underground structure in foundation ditch design and excavation construction for stabilize the safety of foundation ditch, current underground structure is generally fixed setting, can't deal with the foundation ditch of the different degree of depth, and the foundation ditch of the different degree of depth needs not the supporting construction of equidimension, and the practicality is lower, thereby has brought the hidden danger for foundation ditch engineering. Therefore, in order to solve such problems, we propose a deep foundation pit supporting structure.

SUMMERY OF THE UTILITY MODEL

The deep foundation pit supporting structure provided by the utility model solves the problems that the existing foundation pit supporting structure cannot cope with foundation pits of different depths and is low in practicability.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides a deep foundation pit supporting construction, includes base and lower backplate, base top and lower backplate bottom fixed connection, lower backplate top is equipped with the backplate, go up and be equipped with flexible supporting device between backplate and the lower backplate, it has the drive plate to go up backplate lateral wall fixed mounting, lower backplate lateral wall fixed mounting has the fixed plate, be equipped with connecting rod drive arrangement between drive plate and the fixed plate, be connected with first bracing piece between drive plate lateral wall and the base.

Through adopting above-mentioned technical scheme, set up the flexible supporting device that can height-adjusting in the foundation ditch side, set up the base in the foundation ditch bottom surface, the first bracing piece of installation supports flexible supporting device on the base, and flexible supporting device can be adjusted to connecting rod drive arrangement to strengthen support intensity to flexible supporting device, improve and strut the effect.

Preferably, the telescopic supporting device comprises a movable supporting guard plate, telescopic grooves and telescopic plates, the movable supporting guard plate is installed between the upper supporting guard plate and the lower supporting guard plate, the movable supporting guard plate is uniformly distributed, each movable supporting guard plate and the top end of the lower supporting guard plate are fixedly provided with the telescopic plates, each movable supporting guard plate and the bottom end of the upper supporting guard plate are provided with the telescopic grooves, the telescopic grooves are matched with the telescopic plates, and the adjacent telescopic plates are slidably installed inside the telescopic grooves.

By adopting the technical scheme, each telescopic plate can slide up and down in the telescopic groove above the telescopic groove, when the depth of the foundation pit is large, the upper guard plate and each support plate can slide and rise along the telescopic plates, and the height of the whole telescopic support device is increased so as to deal with the foundation pit with large depth.

Preferably, connecting rod drive arrangement includes movable plate, slider, goes up support arm and under bracing arm, the movable plate is installed in every remove the lateral wall of a backplate, the drive plate lateral wall rotates to install the last support arm that is the symmetric distribution, two go up the support arm top and articulate each other, the fixed plate lateral wall rotates installs the under bracing arm that is the symmetric distribution, two the under bracing arm bottom is articulated each other, the homonymy go up the support arm bottom and articulate each other with the under bracing arm top, the lateral wall slidable mounting of movable plate has the slider that is the symmetric distribution, the homonymy the slider rotates with last support arm, under bracing arm respectively and is connected.

Through adopting above-mentioned technical scheme, when the drive plate rebound, drive two and go up the support arm and rotate, drive two lower support arms and rotate, go up support arm and two lower support arms and be parallelogram rotation, go up support arm and lower support arm and drive slider rebound, make the drive plate drive movable plate equidistance rebound, be convenient for drive flexible supporting device and rise.

Preferably, the lateral wall of movable plate has seted up the spout, spout and slider phase-match, spout and slider sliding connection, the length from the top up of spout increases in proper order, from the top down reduces in proper order.

Through adopting above-mentioned technical scheme, when going up support arm and lower support arm and rotating, drive the slider and slide along the spout, and the slider rebound can promote the movable plate and remove.

Preferably, two the pin joint of going up the support arm rotates and installs first bracing piece, first sliding tray has been seted up on the base top, slidable mounting has first sliding seat in the first sliding tray, first bracing piece bottom is connected with first sliding seat top rotation.

Through adopting above-mentioned technical scheme, promote first sliding seat along first sliding tray and remove, drive first bracing piece and rotate, first bracing piece top promotes two go up the pin joint rebound of support arm, can drive and go up backplate and drive plate and reciprocate in order to rise flexible supporting device, and first bracing piece can play the supporting role to whole flexible supporting device.

Preferably, it has the second bracing piece to go up the support arm and articulate the point ball with the lower support arm, the second sliding tray that is the symmetric distribution is seted up on the base top, slidable mounting has the second sliding seat in the second sliding tray, homonymy second bracing piece bottom and second sliding seat top ball joint.

Through adopting above-mentioned technical scheme, when two upper supporting arms and two lower support arms rotated, drive two pin joints and be close to each other and the rebound, two pin joints drive the second bracing piece and rotate, and second bracing piece bottom drives the second sliding seat and slides along the second sliding tray, makes the second bracing piece play the supporting role to whole flexible supporting device once more, strengthens strutting intensity.

Preferably, install first stock on the first sliding seat, install the second stock on the second sliding seat, first stock and second stock pass the base and insert the foundation ditch bottom surface, first sliding seat and second sliding seat all are equipped with the anchor rod hole.

Through adopting above-mentioned technical scheme, first stock and second stock pass anchor rod hole, base back and insert the foundation ditch bottom surface, fix first sliding seat and second sliding seat on the base respectively, keep the stability of first bracing piece and second bracing piece.

Preferably, the side walls of the lower support plate and the upper support plate are provided with symmetrically distributed side anchor rods, and the two groups of side anchor rods penetrate through the lower support plate and the upper support plate respectively and are inserted into the side face of the foundation pit.

Through adopting above-mentioned technical scheme, adjust whole flexible supporting device's height, pass lower backplate and last backplate respectively with two sets of side stock and insert the foundation ditch side, fixed whole flexible supporting device keeps flexible supporting device's stability.

The utility model has the beneficial effects that:

1. through setting up flexible supporting device, every expansion plate can slide from top to bottom in the flexible inslot in top, can make and go up backplate and every supporting plate and slide along the expansion plate and rise, can change the height of foundation ditch side backplate to deal with the great foundation ditch of degree of depth.

2. Through setting up connecting rod drive arrangement, when the drive plate rebound, two last support arms and two lower support arms are the parallelogram and rotate, make the drive plate drive movable plate equidistance rebound, can adjust the height of foundation ditch side fender board to and strengthen the support intensity to flexible supporting device, improve and strut the effect.

In conclusion, the structure is arranged in the foundation pit, so that the height of the supporting and protecting plate can be adjusted, the foundation pit with different depths can be conveniently dealt with, the supporting strength is enhanced, the safety of the foundation pit is stabilized, and the hidden danger of foundation pit engineering is eliminated.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a cross-sectional view of the telescopic support device of the present invention;

FIG. 3 is a schematic structural diagram of the movable support guard plate of the present invention;

FIG. 4 is a schematic structural view of the link driving apparatus of the present invention;

fig. 5 is a schematic structural diagram of the base of the present invention.

Reference numbers in the figures: 1. a base; 2. a lower supporting plate; 3. an upper guard plate; 4. moving the supporting guard plate; 5. a telescopic groove; 6. a retractable plate; 7. a drive plate; 8. a fixing plate; 9. moving the plate; 10. a chute; 11. a slider; 12. an upper support arm; 13. a lower support arm; 14. a first support bar; 15. a first sliding groove; 16. a first sliding seat; 17. a first anchor rod; 18. a second sliding groove; 19. a second sliding seat; 20. a second support bar; 21. a second anchor rod; 22. side anchor rods; 23. an anchor rod hole.

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.

Example (b):

referring to fig. 1, a deep foundation pit supporting structure comprises a base 1 and a lower support plate 2, the top end of the base 1 is fixedly connected with the bottom end of the lower support plate 2, the lower support plate 2 is positioned at one side of the top end of the base 1, an upper support plate 3 is arranged above the lower support plate 2, a telescopic supporting device is arranged between the upper support plate 3 and the lower support plate 2, a telescopic supporting device capable of adjusting the height is arranged at the side surface of a foundation pit, a first support rod 14 can support the telescopic supporting device, a drive plate 7 is fixedly arranged on the side wall of the upper support plate 3, a fixed plate 8 is fixedly arranged on the side wall of the lower support plate 2, a connecting rod driving device is arranged between the drive plate 7 and the fixed plate 8, the connecting rod driving device can adjust the telescopic supporting device, the supporting strength of the telescopic supporting device is enhanced, the supporting effect is improved, the first support rod 14 is connected between the side wall of the drive plate 7 and the base 1, and the side walls of the lower support plate 2 and the upper support plate 3 are provided with symmetrically distributed side anchors 22, two groups of side anchor rods 22 penetrate through the lower protection plate 2 and the upper protection plate 3 respectively and are inserted into the side surface of the foundation pit.

Referring to fig. 2-3, the telescopic support device includes a movable support plate 4, a telescopic groove 5 and a telescopic plate 6, the height of the whole telescopic support device can be increased, so as to deal with a foundation pit with a large depth, a movable support plate 4 which is uniformly distributed is arranged between an upper support plate 3 and a lower support plate 2, a telescopic plate 6 is fixedly arranged on the top of each movable support plate 4 and the top of the lower support plate 2, each movable support plate 4 and the telescopic plate 6 are integrally of a convex structure, a telescopic groove 5 is arranged at the bottom of each movable support plate 4 and the bottom of the upper support plate 3, the telescopic grooves 5 are matched with the telescopic plates 6, adjacent telescopic plates 6 are slidably arranged inside the telescopic groove 5, each telescopic plate 6 can slide up and down in the telescopic groove 5 above, and the upper support plate 3 and each movable support plate 4 can slide and rise along the telescopic plates 6.

Referring to fig. 4, the connecting rod driving device includes a movable plate 9, a slider 11, an upper support arm 12 and a lower support arm 13, the movable plate 9 is installed on a side wall of each movable support plate 4, the movable plate 9 is located on one side of the support plate 4 close to the base 1, the upper support arms 12 symmetrically distributed are installed on a side wall of the drive plate 7 in a rotating manner, top ends of the two upper support arms 12 are hinged to each other, the lower support arms 13 symmetrically distributed are installed on a side wall of the fixed plate 8 in a rotating manner, bottom ends of the two lower support arms 13 are hinged to each other, bottom ends of the upper support arms 12 on the same side are hinged to top ends of the lower support arms 13, the two upper support arms 12 and the two lower support arms 13 are in a parallelogram structure, when the drive plate 7 moves upwards, the two upper support arms 12 and the two lower support arms 13 are driven to rotate, a chute 10 is formed in a side wall of the movable plate 9, the sliders 11 symmetrically distributed are installed in the chute 10 in a sliding manner, the sliders 11 on the same side are respectively connected with the upper support arms 12, The lower supporting arm 13 is rotatably connected, the length of the sliding groove 10 is sequentially increased from top to bottom and is sequentially reduced from top to bottom, the upper supporting arm 12 and the lower supporting arm 13 drive the sliding block 11 to move upwards, the driving plate 7 drives the moving plate 9 to move upwards at equal intervals, and the telescopic supporting device is convenient to drive to ascend.

Referring to fig. 5, a first support rod 14 is rotatably installed at a hinge point of two upper support arms 12, a first sliding groove 15 is formed at the top end of a base 1, a first sliding seat 16 is slidably installed in the first sliding groove 15, the bottom end of the first support rod 14 is rotatably connected with the top end of the first sliding seat 16, the first support rod 14, the base 1 and the telescopic support device form a stable triangular structure which can support the whole telescopic support device, two second support rods 20, the base 1 and the telescopic support device form two stable triangular structures again to support the whole telescopic support device, so as to enhance the support strength, a second support rod 20 is spherically hinged with a hinge point of the upper support arm 12 and the lower support arm 13, second sliding grooves 18 which are symmetrically distributed are formed at the top end of the base 1, a second sliding seat 19 is slidably installed in the second sliding groove 18, and the bottom end of the second support rod 20 at the same side is spherically hinged with the top end of the second sliding seat 19, install first stock 17 on the first sliding seat 16, install second stock 21 on the second sliding seat 19, first stock 17 and second stock 21 pass base 1 and insert the foundation ditch bottom surface, first sliding seat 16 and second sliding seat 19 all are equipped with anchor rod hole 23, insert the foundation ditch bottom surface after first stock 17 and second stock 21 pass anchor rod hole 23, base 1, fix first sliding seat 16 and second sliding seat 19 on base 1 respectively, keep the stability of first bracing piece 14 and second bracing piece 20.

The implementation principle of the deep foundation pit supporting structure provided by the embodiment of the utility model is as follows:

when the structure is installed, the base 1 is attached to the bottom surface of a foundation pit, the lower protection plate 2 is attached to the side surface of the foundation pit, the first sliding seat 16 is pushed to move along the first sliding groove 15 to drive the first supporting rod 14 to rotate, the top end of the first supporting rod 14 drives the upper protection plate 3 and the driving plate 7 to move upwards, the driving plate 7 drives the two upper supporting arms 12 and the two lower supporting arms 13 to rotate, the upper supporting arms 12 and the lower supporting arms 13 drive the movable supporting plate 4 to move upwards at equal intervals, the telescopic supporting device is lifted to match the depth of the foundation pit, the first anchor rod 17 penetrates through the first sliding seat 16 and the base 1 to fix the first supporting rod 14, the upper supporting arms 12 and the lower supporting arms 13 drive the second supporting rod 20 to rotate when rotating, the second sliding seat 19 is driven to slide along the second sliding groove 18, the first anchor rod 17 penetrates through the second sliding seat 19 and the base 1 to fix the second supporting rod 20, and the side anchor rods 22 are distributed and penetrate through the lower protection plate 2, And the upper guard plate 3 is inserted into the side surface of the foundation pit to fix the whole lifting telescopic supporting device.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. The utility model provides a deep foundation pit supporting construction, includes base (1) and lower backplate (2), its characterized in that, base (1) top and lower backplate (2) bottom fixed connection, lower backplate (2) top is equipped with upper guard plate (3), be equipped with flexible supporting device between upper guard plate (3) and lower backplate (2), upper guard plate (3) lateral wall fixed mounting has drive plate (7), lower backplate (2) lateral wall fixed mounting has fixed plate (8), be equipped with connecting rod drive arrangement between drive plate (7) and fixed plate (8), be connected with first bracing piece (14) between drive plate (7) lateral wall and base (1).

2. The deep foundation pit supporting structure according to claim 1, wherein the telescopic supporting device comprises a movable supporting and protecting plate (4), telescopic grooves (5) and telescopic plates (6), the movable supporting and protecting plate (4) is installed between an upper supporting and protecting plate (3) and a lower supporting and protecting plate (2), the movable supporting and protecting plate (4) is uniformly distributed, the telescopic plates (6) are fixedly installed at the top ends of the movable supporting and protecting plate (4) and the lower supporting and protecting plate (2), the telescopic grooves (5) are formed at the bottom ends of the movable supporting and protecting plate (4) and the upper supporting and protecting plate (3), the telescopic grooves (5) are matched with the telescopic plates (6), and the adjacent telescopic plates (6) are slidably installed inside the telescopic grooves (5).

3. A deep basal pit supporting structure according to claim 2, characterized in that, connecting rod drive arrangement includes movable plate (9), slider (11), last support arm (12) and lower support arm (13), movable plate (9) are installed in every the lateral wall of removal backplate (4), drive plate (7) lateral wall rotates and installs last support arm (12) that are the symmetric distribution, two go up support arm (12) top and articulate each other, fixed plate (8) lateral wall rotates and installs lower support arm (13) that are the symmetric distribution, two lower support arm (13) bottom articulates each other, the homonymy go up support arm (12) bottom and lower support arm (13) top and articulate each other, the lateral wall slidable mounting of movable plate (9) has slider (11) that are the symmetric distribution, homonymy slider (11) respectively with last support arm (12), The lower supporting arm (13) is rotatably connected.

4. A deep foundation pit supporting structure according to claim 3, wherein the side wall of the moving plate (9) is provided with a sliding groove (10), the sliding groove (10) is matched with the sliding block (11), the sliding block (11) is slidably mounted inside the sliding groove (10), and the length of the sliding groove (10) is increased from top to bottom and decreased from top to bottom.

5. A deep foundation pit supporting structure according to claim 3, wherein a first supporting rod (14) is rotatably installed at a hinge point of the two upper supporting arms (12), a first sliding groove (15) is formed at the top end of the base (1), a first sliding seat (16) is slidably installed in the first sliding groove (15), and the bottom end of the first supporting rod (14) is rotatably connected with the top end of the first sliding seat (16).

6. The deep foundation pit supporting structure according to claim 5, wherein the upper supporting arm (12) and the lower supporting arm (13) are hinged to a second supporting rod (20) through a hinge point ball, the top end of the base (1) is provided with symmetrically distributed second sliding grooves (18), a second sliding seat (19) is slidably mounted in the second sliding grooves (18), and the bottom end of the second supporting rod (20) on the same side is hinged to the top end of the second sliding seat (19) through a ball.

7. A deep foundation pit supporting structure according to claim 6, wherein the first sliding seat (16) is provided with a first anchor rod (17), the second sliding seat (19) is provided with a second anchor rod (21), the first anchor rod (17) and the second anchor rod (21) penetrate through the base (1) and are inserted into the bottom surface of the foundation pit, and the first sliding seat (16) and the second sliding seat (19) are provided with anchor rod holes (23).

8. A deep foundation pit supporting structure according to claim 1, wherein the side walls of the lower supporting plate (2) and the upper supporting plate (3) are provided with symmetrically distributed side anchor rods (22), and two groups of the side anchor rods (22) penetrate through the lower supporting plate (2) and the upper supporting plate (3) respectively and are inserted into the side surface of the foundation pit.