Auxiliary supporting device for large staggered-span continuous-row double-high-span steel structure deep foundation pit

Abstract

The invention relates to the technical field of deep foundation pit auxiliary supporting, and discloses a large staggered-span continuous-row double-high-span steel structure deep foundation pit auxiliary supporting device which comprises a supporting base, inclined reinforcing ribs are fixedly installed on one side of the upper end of the supporting base, and a plurality of soil inserting nails are symmetrically and fixedly connected to the lower end of the supporting base. The supporting base is further provided with an emergency reinforcing protection mechanism. The supporting performance with higher strength can be provided, and the high-quality deep foundation pit auxiliary supporting work is achieved.

Description

Technical Field

[0001] The present application belongs to the technical field of deep foundation pit auxiliary support, and in particular to a deep foundation pit auxiliary support device for a large staggered-span and double-high-span steel structure. Background Art

[0002] During the construction of a large-scale staggered-span and double-high-span steel structure deep foundation pit, it is necessary to reinforce the side baffles on the side walls of the deep foundation pit for protection. Relying only on the side plates for protection will cause large forces on one side of the deep foundation pit. The loose soil caused by heavy rain will affect the stable support of the entire deep foundation pit, causing a major safety hazard. Summary of the invention

[0003] The purpose of the present invention is to solve the above-mentioned problems and to propose a large-scale staggered-span and double-high-span steel structure deep foundation pit auxiliary support device.

[0004] In order to achieve the above purpose, this application adopts the following technical solutions:

[0005] A large-scale staggered-span and double-high-span steel structure deep foundation pit auxiliary support device comprises a support base, an upper side of which is fixedly provided with an oblique reinforcing rib, a lower end of which is symmetrically fixedly connected with a plurality of soil nails, and an emergency reinforcement protection mechanism is also installed on the support base.

[0006] Preferably, the emergency reinforcement protection mechanism includes a supporting plate fixedly connected to the upper end of the supporting base, a through hole is provided on the surface of the supporting plate, and a threaded barrel is rotatably sleeved in the corresponding through hole through a bearing, a reinforcement screw is threadedly sleeved in the threaded barrel, a through hole is provided on the surface of the supporting base for the reinforcement screw to extend through, a driven bevel gear is fixedly sleeved on the outer wall of the threaded barrel, a rotating motor is fixedly installed on the upper end of the supporting plate, and an active bevel gear is fixedly connected to the output end of the rotating motor.

[0007] Preferably, the upper end of the reinforcing screw is fixedly connected to a limiting plate, one side of the supporting base is fixedly connected to a limiting slide rod, a sliding hole for slidingly sleeved with the limiting slide rod is opened on the surface of the limiting plate, and an anti-slip plate is fixedly connected to the upper end of the limiting slide rod.

[0008] Preferably, the upper end of the support base is also fixedly connected to a trigger shell, a plurality of fixed sliding rods are fixedly connected to the inner wall of the trigger shell, the plurality of fixed sliding rods are slidably sleeved with the same sliding block, the upper end of the sliding block is fixedly connected to the lower end of the oblique reinforcing rib, a plurality of strong springs sleeved on the outside of the fixed sliding rods are fixedly connected between the sliding block and the trigger shell, a pressing protrusion is fixedly connected to the lower end of the sliding block, and a plurality of trigger switches are equidistantly fixedly installed on the bottom of the inner wall of the trigger shell.

[0009] Preferably, the upper end of the soil nail is fixedly connected with a connecting screw block, and the lower end of the support base is provided with a connecting screw groove which is threadedly sleeved with the connecting screw block.

[0010] Preferably, the side wall of the support base is sleeved with multiple locking rods, the outer wall of the connecting screw block is provided with a locking groove connected to the movable sleeve of the locking rod, the outer ends of the multiple locking rods are fixedly connected to the same L-shaped push-pull plate, and the upper end of the support base is fixedly installed with a positioning frame that is clamped outside the L-shaped push-pull plate.

[0011] Preferably, the upper end of the positioning frame is symmetrically provided with a plurality of plug holes, and corresponding plug rods are movably inserted in the corresponding plug holes, the surface of the L-shaped push-pull plate is provided with a plurality of plug holes matching with the plug rods, the upper ends of the plurality of plug rods are fixedly connected to the same cross plate, and the upper end of the positioning frame is symmetrically clamped with two L-shaped pressing plates crimped to the upper end of the cross plate.

[0012] Preferably, a T-shaped clamping block is fixedly connected to the upper end of the positioning frame, and a T-shaped clamping groove matching and clamping with the T-shaped clamping block is formed on the lower end side wall of the L-shaped pressing plate.

[0013] Preferably, a plug hole is provided on the surface of the L-shaped pressing plate, and a clamping rod is movably inserted into the corresponding plug hole, a clamping groove matching and plugging with the clamping rod is provided at the upper end of the cross plate, a clamping pull plate is fixedly connected to the upper end of the clamping rod, and a clamping spring sleeved outside the clamping rod is fixedly connected to the clamping pull plate and the upper ends of the L-shaped pressing plate.

[0014] Compared with the prior art, the present application provides a large-scale staggered-span and double-high-span steel structure deep foundation pit auxiliary support device, which has the following beneficial effects:

[0015] 1. The large-scale staggered-span continuous double-high-span steel structure deep foundation pit auxiliary support device is provided with a support base and oblique reinforcement ribs. The support base cooperates with the soil nails to achieve a stable connection with the ground. The oblique reinforcement ribs are used to support the inner baffle of the deep foundation pit, which plays an effective oblique reinforcement role. When soil collapses due to special circumstances such as rainstorms, the oblique reinforcement ribs are forced to move backward, thereby driving the sliding block to move relatively backward along the fixed sliding rod to overcome the action of the strong spring. The greater the reaction force, the greater the distance the sliding block moves backward. When the pressing protrusion at the lower end of the sliding block acts on the contact When the trigger switch is on, the trigger switch feedback controls the movement of the rotating motor, and the rotating motor drives the active bevel gear to rotate, and the meshing action of the active bevel gear and the driven bevel gear drives the threaded barrel to rotate, and the threaded sleeve action of the threaded barrel and the reinforcing screw is used to make the reinforcing screw move downward, thereby further strengthening the limit of the installation of the entire support base, providing higher strength support for the enclosure, the further the trigger switch is pressed, the greater the distance the reinforcing screw moves downward, and the deeper it is inserted into the ground, providing higher strength support, and playing a high-quality role in deep foundation pit auxiliary support.

[0016] 2. The large-scale staggered-span and double-high-span steel structure deep foundation pit auxiliary support device is equipped with soil nails, which are detachably connected to the support base through connecting screws and connecting screw grooves, and the locking rod is inserted into the locking groove to achieve stable limiting of the connecting screw block. At this time, the upper end of the L-shaped push-pull plate is inserted into the positioning frame, and then the plug-in rod is inserted into the plug-in hole to achieve stable limiting of the L-shaped push-pull plate. At this time, the cross plate is in contact with the upper end of the positioning frame, and the L-shaped compression plate is quickly connected to the upper end of the positioning frame through the matching and clamping of the T-shaped clamping block and the T-shaped clamping groove. At this time, the L-shaped compression plate is pressed onto the upper end of the cross plate, and the clamping rod is aligned with the clamping groove, and the clamping spring pulls down the clamping pull plate, and the clamping pull plate pushes the clamping rod into the clamping groove to achieve stable clamping and fixing of the L-shaped compression plate, thereby ensuring the stability of the structure, and being able to achieve rapid disassembly and assembly, which is easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of this application;

[0018] Figure 2 is a schematic diagram of the cross-sectional structure of the trigger shell;

[0019] Figure 3 A schematic diagram of the cross-sectional structure for the installation of the support base and the soil nails;

[0020] Figure 4 It is a schematic diagram of the cross-sectional structure of the installation of the positioning frame and the L-shaped sliding plate.

[0021] In the figure: 1. Support base; 2. Oblique reinforcing ribs; 3. Soil nails; 4. Support plate; 5. Threaded cylinder; 6. Reinforcement screw; 7. Driven bevel gear; 8. Rotating motor; 9. Active bevel gear; 10. Limit plate; 11. Limit slide bar; 12. Anti-slip plate; 13. Trigger shell; 14. Fixed slide bar; 15. Sliding block; 16. Strong spring; 17. Pressing convex block; 18. Trigger switch; 19. Connecting screw block; 20. Connecting screw groove; 21. Locking rod; 22. Locking groove; 23. L-shaped push-pull plate; 24. Positioning frame; 25. Plug-in rod; 26. Plug-in hole; 27. Cross plate; 28. L-shaped pressing plate; 29. ​​T-shaped block; 30. T-shaped groove; 31. Clamping rod; 32. Clamping groove; 33. Clamping pull plate; 34. Clamping spring. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments.

[0023] Reference Figure 1-4A large-scale staggered-span and double-high-span steel structure deep foundation pit auxiliary support device comprises a support base 1, an upper side of the support base 1 is fixedly provided with an oblique reinforcing rib 2, a lower end of the support base 1 is symmetrically fixedly connected with a plurality of soil nails 3, and an emergency reinforcement protection mechanism is also installed on the support base 1.

[0024] The emergency reinforcement protection mechanism includes a supporting plate 4 fixedly connected to the upper end of the supporting base 1, a through hole is opened on the surface of the supporting plate 4, and a threaded tube 5 is rotatably sleeved in the corresponding through hole through a bearing, a reinforcement screw 6 is threadedly sleeved in the threaded tube 5, a through hole is opened on the surface of the supporting base 1 for the reinforcement screw 6 to extend through, a driven bevel gear 7 is fixedly sleeved on the outer wall of the threaded tube 5, a rotating motor 8 is fixedly installed on the upper end of the supporting plate 4, and an active bevel gear 9 is fixedly connected to the output end of the rotating motor 8.

[0025] The upper end of the reinforcing screw 6 is fixedly connected to a limiting plate 10, and one side of the supporting base 1 is fixedly connected to a limiting slide rod 11. The surface of the limiting plate 10 is provided with a sliding hole that is slidably connected to the limiting slide rod 11, and the upper end of the limiting slide rod 11 is fixedly connected to an anti-slip plate 12.

[0026] A trigger shell 13 is also fixedly connected to the upper end of the support base 1. A plurality of fixed slide rods 14 are fixedly connected to the inner wall of the trigger shell 13. The same sliding block 15 is slidably sleeved on the outer side of the plurality of fixed slide rods 14. The upper end of the sliding block 15 is fixedly connected to the lower end of the oblique reinforcing rib 2. A plurality of strong springs 16 sleeved on the outer side of the fixed slide rod 14 are fixedly connected between the sliding block 15 and the trigger shell 13. A pressing protrusion 17 is fixedly connected to the lower end of the sliding block 15. A plurality of trigger switches 18 are fixedly installed at equal intervals on the bottom of the inner wall of the trigger shell 13.

[0027] The upper end of the soil nail 3 is fixedly connected with a connecting screw block 19 , and the lower end of the support base 1 is provided with a connecting screw groove 20 which is threadedly sleeved with the connecting screw block 19 .

[0028] The side wall of the support base 1 is sleeved with multiple locking rods 21, and the outer wall of the connecting screw block 19 is provided with a locking groove 22 connected to the movable sleeve of the locking rod 21. The outer ends of the multiple locking rods 21 are fixedly connected to the same L-shaped push-pull plate 23, and the upper end of the support base 1 is fixedly installed with a positioning frame 24 that is clamped outside the L-shaped push-pull plate 23.

[0029] A plurality of plug holes are symmetrically provided at the upper end of the positioning frame 24, and plug rods 25 are movably inserted into the corresponding plug holes. A plurality of plug holes 26 matching the plug rods 25 are provided on the surface of the L-shaped push-pull plate 23. The upper ends of the plurality of plug rods 25 are fixedly connected to the same cross plate 27. The upper end of the positioning frame 24 is symmetrically clamped with two L-shaped pressing plates 28 crimped to the upper end of the cross plate 27.

[0030] A T-shaped clamping block 29 is fixedly connected to the upper end of the positioning frame 24 , and a T-shaped clamping groove 30 matching and clamping with the T-shaped clamping block 29 is formed on the lower side wall of the L-shaped pressing plate 28 .

[0031] A plug hole is provided on the surface of the L-shaped pressing plate 28, and a clamping rod 31 is movably inserted into the corresponding plug hole. A clamping groove 32 matching and plugging with the clamping rod 31 is provided at the upper end of the cross plate 27. A clamping pull plate 33 is fixedly connected to the upper end of the clamping rod 31. A clamping spring 34 sleeved on the outside of the clamping rod 31 is fixedly connected to the clamping pull plate 33 and the upper end of the L-shaped pressing plate 28.

[0032] The operating principle of the present invention is now described as follows:

[0033] When the present application is used, the supporting base 1 and the oblique reinforcing ribs 2 are provided, and the supporting base 1 cooperates with the soil nails 3 to achieve a stable connection with the ground. The oblique reinforcing ribs 2 are used to support the inner baffle of the deep foundation pit, and play an effective oblique reinforcing role. When soil collapses due to special circumstances such as rainstorms, the oblique reinforcing ribs 2 are forced to move backward, thereby driving the sliding block 15 to move relatively backward along the fixed sliding rod 14 to overcome the action of the strong spring 16. The greater the reaction force, the greater the distance the sliding block 15 moves backward. When the sliding block 15 When the pressing protrusion 17 at the lower end acts on the trigger switch 18, the trigger switch 18 feedback controls the rotation motor 8 to move, and the rotation motor 8 drives the active bevel gear 9 to rotate, and the threaded cylinder 5 is driven to rotate through the meshing action of the active bevel gear 9 and the driven bevel gear 7. The threaded sleeve action of the threaded cylinder 5 and the reinforcing screw 6 makes the reinforcing screw 6 move downward, thereby further strengthening the installation of the entire support base 1 and providing a higher strength support for the enclosure. The further the trigger switch 18 is pressed, the more the reinforcing screw 6 moves downward. The distance between the two ends of the L-shaped push-pull plate 23 and the depth of insertion into the ground is greater, providing a higher strength of support, and playing a high-quality deep foundation pit auxiliary support work. Through the soil nails 3 provided, the soil nails 3 are detachably connected to the support base 1 through the connecting screws and the connecting screw grooves 20, and the locking rods 21 are inserted into the locking grooves 22 to achieve a stable limit to the connecting screw block 19. At this time, the upper end of the L-shaped push-pull plate 23 is inserted into the positioning frame 24, and then the plug-in rod 25 is inserted into the plug-in hole 26 to achieve a stable limit to the L-shaped push-pull plate 23. At this time, the cross plate 2 7 abuts against the upper end of the positioning frame 24, and the L-shaped pressing plate 28 is quickly connected to the upper end of the positioning frame 24 through the matching and snapping of the T-shaped clamping block 29 and the T-shaped clamping groove 30. At this time, the L-shaped pressing plate 28 is pressed against the upper end of the cross plate 27. At this time, the clamping rod 31 is aligned with the clamping groove 32, and the clamping spring 34 pulls down the clamping plate 33. The clamping plate 33 pushes the clamping rod 31 into the clamping groove 32 to achieve a stable clamping and fixing of the L-shaped pressing plate 28, thereby ensuring the stability of the structure, and being able to achieve quick disassembly and assembly for easy use.

Claims

1. A large-scale staggered-span and double-high-span steel structure deep foundation pit auxiliary support device, comprising a support base (1), characterized in that: An oblique reinforcing rib (2) is fixedly mounted on one side of the upper end of the support base (1), a plurality of soil nails (3) are symmetrically fixedly connected to the lower end of the support base (1), and an emergency reinforcement protection mechanism is also mounted on the support base (1).

2. The large-scale staggered-span and double-high-span steel structure deep foundation pit auxiliary support device according to claim 1 is characterized in that: The emergency reinforcement protection mechanism comprises a supporting plate (4) fixedly connected to the upper end of the support base (1); a through hole is provided on the surface of the supporting plate (4); a threaded barrel (5) is rotatably sleeved in the corresponding through hole via a bearing; a reinforcing screw rod (6) is sleeved in the inner thread of the threaded barrel (5); a through hole is provided on the surface of the support base (1) for the reinforcing screw rod (6) to extend through; a driven bevel gear (7) is fixedly sleeved on the outer wall of the threaded barrel (5); a rotating motor (8) is fixedly mounted on the upper end of the supporting plate (4); and a driving bevel gear (9) is fixedly connected to the output end of the rotating motor (8).

3. The large-scale staggered-span and double-high-span steel structure deep foundation pit auxiliary support device according to claim 2 is characterized in that: The upper end of the reinforcing screw rod (6) is fixedly connected to a limiting plate (10), and one side of the supporting base (1) is fixedly connected to a limiting sliding rod (11). The surface of the limiting plate (10) is provided with a sliding hole for slidingly sleeved with the limiting sliding rod (11), and the upper end of the limiting sliding rod (11) is fixedly connected to an anti-slip plate (12).

4. The large-scale staggered-span and double-high-span steel structure deep foundation pit auxiliary support device according to claim 3 is characterized in that: The upper end of the support base (1) is also fixedly connected to a trigger shell (13), the inner wall of the trigger shell (13) is fixedly connected to a plurality of fixed slide bars (14), the plurality of fixed slide bars (14) are slidably sleeved with a same sliding block (15), the upper end of the sliding block (15) is fixedly connected to the lower end of the oblique reinforcing rib (2), a plurality of strong springs (16) sleeved on the outside of the fixed slide bars (14) are fixedly connected between the sliding block (15) and the trigger shell (13), a pressing protrusion (17) is fixedly connected to the lower end of the sliding block (15), and a plurality of trigger switches (18) are fixedly installed at equal intervals on the bottom of the inner wall of the trigger shell (13).

5. The large-scale staggered-span and double-high-span steel structure deep foundation pit auxiliary support device according to claim 4 is characterized in that: The upper end of the soil nail (3) is fixedly connected to a connecting screw block (19), and the lower end of the support base (1) is provided with a connecting screw groove (20) threadedly sleeved with the connecting screw block (19).

6. The large-scale staggered-span and double-high-span steel structure deep foundation pit auxiliary support device according to claim 5 is characterized in that: The side wall of the support base (1) is sleeved with a plurality of locking rods (21); the outer wall of the connecting screw block (19) is provided with a locking groove (22) connected to the movable sleeve of the locking rod (21); the outer ends of the plurality of locking rods (21) are fixedly connected to the same L-shaped push-pull plate (23); and the upper end of the support base (1) is fixedly provided with a positioning frame (24) that is sleeved outside the L-shaped push-pull plate (23).

7. The large-scale staggered-span and double-high-span steel structure deep foundation pit auxiliary support device according to claim 6 is characterized in that: The upper end of the positioning frame (24) is symmetrically provided with a plurality of plug holes, and corresponding plug holes are movably inserted into the plug rods (25). The surface of the L-shaped push-pull plate (23) is provided with a plurality of plug holes (26) matched with the plug rods (25). The upper ends of the plurality of plug rods (25) are fixedly connected to the same horizontal plate (27). The upper end of the positioning frame (24) is symmetrically clamped with two L-shaped pressing plates (28) pressed on the upper end of the horizontal plate (27).

8. The large-scale staggered-span and double-high-span steel structure deep foundation pit auxiliary support device according to claim 7 is characterized in that: The upper end of the positioning frame (24) is fixedly connected with a T-shaped clamping block (29), and the lower end side wall of the L-shaped pressing plate (28) is provided with a T-shaped clamping groove (30) that matches and clamps with the T-shaped clamping block (29).

9. The large-scale staggered-span and double-high-span steel structure deep foundation pit auxiliary support device according to claim 8 is characterized in that: The surface of the L-shaped pressing plate (28) is provided with an insertion hole, and a clamping rod (31) is movably inserted into the corresponding insertion hole. The upper end of the cross plate (27) is provided with a clamping groove (32) that matches and plugs into the clamping rod (31). The upper end of the clamping rod (31) is fixedly connected with a clamping pull plate (33). The clamping pull plate (33) and the upper end of the L-shaped pressing plate (28) are fixedly connected with a clamping spring (34) sleeved outside the clamping rod (31).

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