Large staggered double high span steel structure deep foundation pit auxiliary support device

Abstract

The application relates to the technical field of deep foundation pit auxiliary support, and discloses a large-scale staggered-span continuous-row double-high-span steel structure deep foundation pit auxiliary support device, which comprises a support base, an oblique reinforcing rib is fixedly arranged on one side of the upper end of the support base, a plurality of soil nails are symmetrically fixedly connected to the lower end of the support base, and an emergency reinforcing protection mechanism is further arranged on the support base. The application can provide higher strength support and play a high-quality deep foundation pit auxiliary support role.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of deep foundation pit auxiliary support, and particularly relates to a large-scale staggered-span continuous-row double-high-span steel structure deep foundation pit auxiliary support device. BACKGROUND

[0002] In the construction of a large-scale staggered-span continuous-row double-high-span steel structure deep foundation pit, a side retaining plate needs to be reinforced on the side wall of the deep foundation pit for enclosure. Only relying on the side plate for enclosure will cause large unilateral stress of the deep foundation pit, and the soft soil caused by heavy rain will affect the stable support of the entire deep foundation pit, causing great safety hazards. SUMMARY

[0003] The purpose of the present application is to solve the above problems, and a large-scale staggered-span continuous-row double-high-span steel structure deep foundation pit auxiliary support device is provided.

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

[0005] The large-scale staggered-span continuous-row double-high-span steel structure deep foundation pit auxiliary support device comprises a support base, an inclined reinforcing rib is fixedly arranged on one side of the upper end of the support base, a plurality of soil nails are symmetrically fixedly connected to the lower end of the support base, and an emergency reinforcing protection mechanism is further arranged on the support base.

[0006] Preferably, the emergency reinforcing protection mechanism comprises a supporting plate fixedly connected to the upper end of the support base, a through hole is formed in the surface of the supporting plate, a threaded cylinder is rotatably sleeved in the through hole through a bearing, a reinforcing screw is threadedly sleeved in the threaded cylinder, a through hole is formed in the surface of the support base for the reinforcing screw to pass through and extend out, a driven bevel gear is fixedly sleeved on the outer wall of the threaded cylinder, a rotating motor is fixedly arranged on the upper end of the supporting plate, and a driving 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, a limiting sliding rod is fixedly connected to one side of the support base, a sliding hole is formed in the surface of the limiting plate and slidably sleeved with the limiting sliding rod, and the upper end of the limiting sliding rod is fixedly connected to an anti-dropping plate.

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

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

[0010] Preferably, the side wall of the supporting base is sleeved with a plurality of locking rods, the outer wall of the connecting screw block is provided with a locking groove which is movably sleeved with the locking rod, the outer end of the plurality of locking rods is fixedly connected with the same L-shaped push-pull plate, and the upper end of the supporting base is fixedly provided with a positioning frame which is sleeved outside the L-shaped push-pull plate.

[0011] Preferably, the upper end of the positioning frame is symmetrically provided with a plurality of insertion holes, and the corresponding insertion hole is movably sleeved with an insertion rod, the surface of the L-shaped push-pull plate is provided with a plurality of insertion holes which are matched with the insertion rod, the upper end of the plurality of insertion rods is fixedly connected with the same horizontal plate, and the upper end of the positioning frame is symmetrically provided with two L-shaped pressing plates which are pressed on the upper end of the horizontal plate.

[0012] Preferably, the upper end of the positioning frame is fixedly connected with a T-shaped clamping block, and the lower end of the L-shaped pressing plate is provided with a T-shaped clamping groove which is matched with the T-shaped clamping block.

[0013] Preferably, the surface of the L-shaped pressing plate is provided with an insertion hole, and the corresponding insertion hole is movably sleeved with a clamping rod, the upper end of the horizontal plate is provided with a clamping groove which is matched with the clamping rod, the upper end of the clamping rod is fixedly connected with a clamping pull plate, and the upper end of the clamping pull plate and the L-shaped pressing plate is fixedly connected with a clamping spring which is sleeved outside the clamping rod.

[0014] Compared with the prior art, the large-scale staggered-span continuous-row double-high-span steel structure deep foundation pit auxiliary support device has the following beneficial effects:

[0015] 1. The large-scale staggered-span continuous-row double-high-span steel structure deep foundation pit auxiliary support device, through the supporting base and the inclined reinforcing rib, the supporting base is connected with the ground stably through the soil plug, and the inclined reinforcing rib is used for supporting the inner baffle of the deep foundation pit, thereby effectively strengthening the inclined reinforcing rib. In special circumstances such as heavy rain, when the soil collapses, the inclined reinforcing rib is stressed and moves backward, thereby driving the sliding block to move backward along the fixed sliding rod against the action of the strong spring. The greater the reaction force, the greater the distance of the sliding block. When the pressing protrusion at the lower end of the sliding block acts on the trigger switch, the trigger switch feeds back to control the action of the rotary motor. The rotary motor drives the driving bevel gear to rotate, and the driving bevel gear and the driven bevel gear are meshed to drive the threaded cylinder to rotate. Through the threaded sleeve action of the threaded cylinder and the reinforcing screw rod, the reinforcing screw rod moves downward, thereby further strengthening and limiting the installation of the entire supporting base, providing higher-strength support for the fence. The farther the trigger switch is pressed, the greater the distance of the reinforcing screw rod moving downward, and the deeper the depth of the insertion into the ground, thereby providing higher-strength support and achieving high-quality deep foundation pit auxiliary support work.

[0016] 2. This large-scale staggered, double-span, high-span steel structure deep foundation pit auxiliary support device uses soil-inserting nails. These nails are detachably connected to the support base via connecting screws and connecting screw grooves. A locking rod is inserted into the locking groove to securely limit the position of the connecting screw block. At this point, the upper end of the L-shaped push-pull plate is inserted into the positioning frame, and then the insertion rod is inserted into the insertion hole to securely limit the L-shaped push-pull plate. The horizontal plate then abuts against the upper end of the positioning frame. Through the matching and locking of the T-shaped locking block and T-shaped locking groove, the L-shaped pressure plate is quickly connected to the upper end of the positioning frame. The L-shaped pressure plate is then pressed against the upper end of the horizontal plate. The clamping rod is aligned with the clamping groove, and the clamping spring pulls down the clamping pull plate. The clamping pull plate pushes the clamping rod into the clamping groove, thus achieving a secure clamping and fixing of the L-shaped pressure plate. This ensures structural stability and allows for quick assembly and disassembly, facilitating use. Attached Figure Description

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

[0018] Figure 2 This is a cross-sectional view of the trigger shell.

[0019] Figure 3 A cross-sectional structural diagram showing the installation of the support base and soil-inserting nails;

[0020] Figure 4 A cross-sectional view of the installation of the positioning frame and the L-shaped push-pull plate.

[0021] In the diagram: 1. Support base; 2. Diagonal reinforcing rib; 3. Soil nail; 4. Support plate; 5. Threaded cylinder; 6. Reinforcing screw; 7. Driven bevel gear; 8. Rotary motor; 9. Driven bevel gear; 10. Limiting plate; 11. Limiting slide rod; 12. Anti-detachment plate; 13. Trigger housing; 14. Fixed slide rod; 15. Sliding block; 16. Strong spring; 17. Pressing protrusion; 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. Insertion rod; 26. Insertion hole; 27. Horizontal plate; 28. L-shaped pressure plate; 29. ​​T-shaped locking block; 30. T-shaped locking groove; 31. Clamping rod; 32. Clamping groove; 33. Clamping pull plate; 34. Clamping spring. Detailed Implementation

[0022] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.

[0023] Reference Figures 1-4The auxiliary support device for a large-scale staggered double-high-span steel structure deep foundation pit includes a support base 1. An oblique reinforcing rib 2 is fixedly installed on one side of the upper end of the support base 1. Multiple soil nails 3 are symmetrically fixedly connected to the lower end of the support base 1. An emergency reinforcement and protection mechanism is also installed on the support base 1.

[0024] The emergency reinforcement and protection mechanism includes a support plate 4 fixedly connected to the upper end of the support base 1. The surface of the support plate 4 has a through hole, and a threaded cylinder 5 is rotatably sleeved in the corresponding through hole via a bearing. A reinforcement screw 6 is threadedly sleeved inside the threaded cylinder 5. The surface of the support base 1 has a through hole for the reinforcement screw 6 to extend through. A driven bevel gear 7 is fixedly sleeved on the outer wall of the threaded cylinder 5. A rotary motor 8 is fixedly installed at the upper end of the support plate 4, and a driving bevel gear 9 is fixedly connected to the output end of the rotary motor 8.

[0025] A limiting plate 10 is fixedly connected to the upper end of the reinforcing screw 6, and a limiting slide rod 11 is fixedly connected to one side of the support base 1. The surface of the limiting plate 10 is provided with a sliding hole that slides and engages with the limiting slide rod 11. An anti-detachment plate 12 is fixedly connected to the upper end of the limiting slide rod 11.

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

[0027] The upper end of the soil-inserting 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 that is threadedly engaged with the connecting screw block 19.

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

[0029] The upper end of the positioning frame 24 is symmetrically provided with multiple insertion holes, and the corresponding insertion holes are movably inserted with insertion rods 25. The surface of the L-shaped push-pull plate 23 is provided with multiple insertion holes 26 that match and insert with the insertion rods 25. The upper ends of the multiple insertion rods 25 are fixedly connected to the same horizontal plate 27. The upper end of the positioning frame 24 is symmetrically snapped with two L-shaped clamping plates 28 that are pressed against the upper end of the horizontal plate 27.

[0030] The upper end of the positioning frame 24 is fixedly connected to a T-shaped card block 29, and the lower side wall of the L-shaped clamping plate 28 is provided with a T-shaped card groove 30 that matches and engages with the T-shaped card block 29.

[0031] The surface of the L-shaped clamping plate 28 is provided with insertion holes, and a clamping rod 31 is movably inserted into the corresponding insertion holes. The upper end of the horizontal plate 27 is provided with a clamping groove 32 that matches and inserts into the clamping rod 31. A clamping pull plate 33 is fixedly connected to the upper end of the clamping rod 31. A clamping spring 34 sleeved on the upper end of the clamping pull plate 33 and the upper end of the L-shaped clamping plate 28 is fixedly connected to the clamping spring 34.

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

[0033] In use, this application utilizes a supporting base 1 and an inclined reinforcing rib 2. The supporting base 1, in conjunction with the soil-inserting nail 3, achieves a stable connection with the ground. The inclined reinforcing rib 2 supports the inner baffle of the deep foundation pit, providing effective inclined reinforcement. In special circumstances, such as soil collapse caused by heavy rain, the inclined reinforcing rib 2 is forced to move backward, thereby driving the sliding block 15 to move backward relative to the fixed sliding rod 14 against the force 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 lower pressing protrusion 17 acts on the trigger switch 18, the trigger switch 18 controls the rotary motor 8 to operate. The rotary motor 8 drives the driving bevel gear 9 to rotate. Through the meshing of the driving bevel gear 9 and the driven bevel gear 7, the threaded cylinder 5 is driven to rotate. Through the threaded engagement between the threaded cylinder 5 and the reinforcing screw 6, the reinforcing screw 6 moves downward, thereby further strengthening and limiting the installation of the entire support base 1, providing higher strength support for the enclosure. The further the trigger switch 18 is pressed, the lower the reinforcing screw 6 moves. The distance is greater, the insertion depth is deeper, providing higher strength support and playing a high-quality auxiliary support role in deep foundation pits. Through the provided soil-inserting nails 3, which are detachably connected to the support base 1 via connecting screws and connecting screw grooves 20, and the locking rod 21 is inserted into the locking groove 22 to achieve stable positioning of the connecting screw block 19, at which point the upper end of the L-shaped push-pull plate 23 is inserted into the positioning frame 24, and then the insertion rod 25 is inserted into the insertion hole 26 to achieve stable positioning of the L-shaped push-pull plate 23. At this time, the horizontal plate 2... 7. The L-shaped clamping plate 28 is quickly connected to the upper end of the positioning frame 24 by the matching and snapping of the T-shaped clamping block 29 and the T-shaped clamping groove 30. At this time, the L-shaped clamping plate 28 is pressed against the upper end of the horizontal 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 pull plate 33. The clamping pull plate 33 pushes the clamping rod 31 into the clamping groove 32, which can realize the stable snapping and fixing of the L-shaped clamping plate 28, ensuring the structural stability and enabling quick disassembly and assembly, making it easy to use.

Claims

1. A large staggered double-high-span steel structure deep foundation pit auxiliary support device, comprising a support base (1), characterized in that, The upper end of the support base (1) is fixedly provided with a diagonal reinforcing rib (2), the lower end of the support base (1) is fixedly connected with a plurality of soil nails (3), and the support base (1) is further provided with an emergency reinforcing protection mechanism. The emergency reinforcing protection mechanism comprises a supporting plate (4) fixedly connected to the upper end of the support base (1), a through hole is formed in the surface of the supporting plate (4), a threaded cylinder (5) is rotatably sleeved in the through hole through a bearing, a reinforcing screw rod (6) is threadedly sleeved in the threaded cylinder (5), a through hole is formed in the surface of the support base (1) for the reinforcing screw rod (6) to pass through and extend out, a driven bevel gear (7) is fixedly sleeved on the outer wall of the threaded cylinder (5), a rotary motor (8) is fixedly arranged at the upper end of the supporting plate (4), and a driving bevel gear (9) is fixedly connected to the output end of the rotary motor (8); the upper end of the reinforcing screw rod (6) is fixedly connected with a limiting plate (10), one side of the support base (1) is fixedly connected with a limiting sliding rod (11), a sliding hole is formed in the surface of the limiting plate (10) and slidably sleeved with the limiting sliding rod (11), and the upper end of the limiting sliding rod (11) is fixedly connected with an anti-dropping plate (12); the upper end of the support base (1) is further fixedly connected with a trigger shell (13), a plurality of fixed sliding rods (14) are fixedly connected to the inner wall of the trigger shell (13), the same sliding block (15) is slidably sleeved with the plurality of fixed sliding rods (14), the upper end of the sliding block (15) is fixedly connected to the lower end of the diagonal reinforcing rib (2), a plurality of strong springs (16) are fixedly connected between the sliding block (15) and the trigger shell (13) and sleeved outside the fixed sliding rods (14), the lower end of the sliding block (15) is fixedly connected with a pressing protruding block (17), and a plurality of trigger switches (18) are equidistantly fixedly arranged at the bottom of the inner wall of the trigger shell (13).

2. The auxiliary support device for large cross-span double high-span steel structure deep foundation pit according to claim 1, characterized in that, 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) threadedly sleeved with the connecting screw block (19).

3. The auxiliary support device for large deep foundation pit of double-high-span steel structure with staggered and continuous arrangement of large and small spans according to claim 2, characterized in that, The side wall of the support base (1) is inserted with a plurality of locking rods (21), the outer wall of the connecting screw block (19) is provided with a locking groove (22) movably inserted and connected with the locking rod (21), the outer ends of the plurality of locking rods (21) are fixedly connected with 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) clamped outside the L-shaped push-pull plate (23).

4. The auxiliary support device for large deep foundation pit of double-high-span steel structure with staggered and continuous rows according to claim 3, characterized in that, The upper end of the positioning frame (24) is symmetrically provided with a plurality of insertion holes, and the insertion holes movably insert a plug-in rod (25), the surface of the L-shaped push-pull plate (23) is provided with a plurality of plug-in holes (26) matched with the plug-in rod (25), the upper ends of the plurality of plug-in rods (25) are fixedly connected with the same horizontal plate (27), and 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).

5. The auxiliary support device for large deep foundation pit of double-high-span steel structure with staggered and continuous arrangement of large and small spans according to claim 4, 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) matched with the T-shaped clamping block (29).

6. The auxiliary support device for large cross-row double-high-span steel structure deep foundation pit according to claim 5, characterized in that, The surface of the L-shaped pressing plate (28) is provided with a jack, and a clamping rod (31) is movably inserted into the jack, the upper end of the horizontal plate (27) is provided with a clamping groove (32) matched with the clamping rod (31), the upper end of the clamping rod (31) is fixedly connected with a clamping pull plate (33), and 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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