CN115162335A - Deep foundation pit supporting structure - Google Patents

Description

Deep foundation pit support structure

technical field

The present invention relates to the technical field of steel sheet piles, and more particularly, to a deep foundation pit support structure.

Background technique

Deep foundation pit refers to the excavation depth of more than 5 meters (including 5 meters), or although the depth does not exceed 5 meters, but the geological conditions, surrounding environment and underground pipelines are particularly complex projects. In underground space, vertical earth retaining enclosures are generally arranged around the deep foundation pit. The enclosures are generally plate (pile) wall structures with a certain depth of insertion under the base of the excavation surface; plate (pile) walls have cantilevered, single Support type and multi-support type. The support structure is to reduce the deformation of the enclosure structure and control the bending moment of the wall. It is divided into two types: inner support and external anchor. The removal method and the machinery used are the same as those of the I-beam pile, but the construction method can be divided into single-layer steel sheet pile cofferdam, double-layer steel sheet pile cofferdam and screen. Due to the deep foundation pit during subway construction, in order to ensure its verticality and facilitate construction, and to enable it to be closed and closed, a curtain-type structure is often used.

U-shaped steel sheet piles are usually lifted by a crane, and then the U-shaped steel sheet piles are hoisted to the insertion point, and the U-shaped steel sheet piles are inserted in cooperation with the static pile driver. In the vertical state, the single-point hoisting method is adopted. This method makes one end of the U-shaped steel sheet pile just hoisted, and the other lower end is prone to friction and collision with the ground, resulting in the U-shaped steel sheet pile. Deformation requires personnel to re-treat and correct the deformed part of the U-shaped steel sheet pile, so that the pile cannot be inserted smoothly, which leads to a slow construction process, which is time-consuming and labor-intensive. Therefore, we need to solve this problem in time.

SUMMARY OF THE INVENTION

In order to overcome the above-mentioned defects of the prior art, the embodiment of the present invention provides a deep foundation pit support structure, and the load-bearing block is pulled back through the rewinding of the connecting rope, so that the corresponding oil storage tank moves with it, and the sliding sleeve is pushed to slide on the surface of the reinforced cable. , so that the crane cable moves with the movable support arm. When the crane cable moves, the force point of the reinforced cable changes, so that one end of the U-shaped steel sheet pile is inclined by the gravitational inertia, so that the U-shaped steel sheet pile is transformed into a vertical state to solve the problems raised in the background art above.

In order to achieve the above purpose, the present invention provides the following technical solutions: the deep foundation pit support structure includes a U-shaped steel sheet pile, one end of the U-shaped steel sheet pile is provided with a circular hole, and the inner side of the circular hole is provided with a movable limit column. , the outer side of the movable limit post is provided with a rubber sealing ring, the outer side of the rubber sealing ring is fixedly installed with a first clamping plate, one side of the first clamping plate is fixedly installed with a second clamping plate, and the second clamping plate is fixed on one side. A case is fixedly installed on one side, a forward and reverse rotation motor is arranged on the inner side of the case, the output end of the forward and reverse rotation motor is rotatably connected with a gear, and the outer side of the gear is meshed with a toothed rotating drum, and the toothed drum is engaged with the gear. A connecting rope is wound around the outside of the type rotating drum, one end of the connecting rope is fixedly connected with a bearing block, one side of the bearing block is fixedly installed with a corresponding type oil storage tank, and the top of the corresponding type oil storage tank is fixedly installed with a limited position A wrapping box, a first ring is fixedly installed on the top of the limit wrapping box, a first lock is sleeved on the inner side of the first ring, and one end of the first lock is fixedly connected with a reinforced type A cable, one end of the reinforced cable is fixedly connected with a second lock, the inner side of the second lock is sleeved with a second ring, and one side of the limit wrapping box is fixedly installed with a circular limit A telescopic rod is inserted inside the circular limit seat, a movable support arm is fixedly installed at one end of the telescopic rod, and a metal splint is inserted into the top of the movable support arm, and one side of the metal splint is inserted. A sliding sleeve is clamped and connected, the outer side of the sliding sleeve is fixedly connected with a third ring, and the inner side of the third ring is sleeved with a hoist cable.

The beneficial effects of adopting the above-mentioned further scheme are as follows: the U-shaped steel sheet pile is drilled with an electric drill to drill a circular hole, the first plywood and the second plywood are clamped on both sides of the U-shaped steel sheet pile, and then the movable limit post is inserted into the first plywood Inside, use the rubber sealing ring to fix the movable limit post, then snap the corresponding oil storage tank into the other end of the U-shaped steel sheet pile, and slide the sliding sleeve to the center of the reinforced cable, so that both ends of the U-shaped steel sheet pile are Keep it stable, then break the metal splint and clamp it on the outside of the sliding sleeve, and connect the crane cable to the outside of the third ring. When the crane starts to lift, lift the U-shaped steel sheet pile as a whole. When it completely leaves the ground, start the forward and reverse motor to make the gear rotate, thereby driving the toothed drum to rotate, so that the connecting rope is reeled. Follow the movement, so as to drive the movable support arm to move, push the sliding sleeve to slide on the surface of the reinforced cable, so that the hoist cable moves with the movable support arm. When the hoist cable moves, the force point of the reinforced cable changes, making One end of the U-shaped steel sheet pile is inclined by the gravitational inertia, so that the U-shaped steel sheet pile is transformed into a vertical state in the air, and the telescopic rod retracts when it contacts with one side of the first splint, thereby reducing the floor space and making the corresponding type The oil storage tank can be as close as possible to the first splint, so that the U-shaped steel sheet pile can be vertical. The sheet pile fell off.

In a preferred embodiment, a transverse support rod is inserted into the inside of the load-bearing block, and wheels are rotatably connected to both ends of the transverse support rod.

The beneficial effect of adopting the above-mentioned further solution is that when the connecting rope is being reeled, the wheels roll on the surface of the U-shaped steel sheet pile, so that the corresponding type of oil storage tank can move more smoothly.

In a preferred embodiment, a spherical seat is fixedly installed in the inner cavity of the corresponding oil storage tank, and a ball is rotatably connected to the inner side of the spherical seat.

The beneficial effect of adopting the above-mentioned further scheme is: during the movement of the corresponding oil storage tank, the balls roll on the surface of the U-shaped steel sheet pile, so that the lubricating oil in the cavity of the corresponding oil storage tank is smeared on the surface of the U-shaped steel sheet pile.

In a preferred embodiment, the number of the spherical seats and the balls is set in multiples, and the plurality of the spherical seats and the balls are sequentially arranged in a path array with respect to the outer side of the U-shaped steel sheet pile.

The beneficial effect of adopting the above-mentioned further solution is that the lubricating oil can be applied more evenly on the surface of the U-shaped steel sheet pile through the arrangement of a plurality of spherical seats and balls.

In a preferred embodiment, a counterweight is placed on the inner side of the limit wrapping box, a threaded frame is fixedly installed on the top of the corresponding oil storage tank, and a threaded cover is threadedly connected to the inner side of the threaded frame.

The beneficial effect of adopting the above-mentioned further scheme is: by unscrewing the threaded cover, the lubricating oil is poured into the inner cavity of the corresponding type of oil storage tank from the threaded frame, and then the threaded cover and the threaded cover are tightened to seal the lubricating oil in the corresponding type. inside the fuel tank.

In a preferred embodiment, a circular limiting cylinder is fixedly mounted on one side of the second clamping plate, a fourth circular ring is fixedly mounted on the bottom end of the movable limiting column, and the outer side of the fourth circular ring is fixedly mounted. Sleeve with nylon cord.

The beneficial effect of adopting the above-mentioned further scheme is: when the U-shaped steel sheet pile is in a vertical state, the U-shaped steel sheet pile is fixed by a static pile driver, and the staff grabs the nylon rope on the ground and drags it backward, thereby limiting the movable position. The column is pulled out of the round hole, so that the movable limit column and the U-shaped steel sheet pile no longer fit, and then the hoist is lifted, and the device can be pulled out.

In a preferred embodiment, the metal splint is made of a plastic material, the metal splint and the sliding sleeve are arranged in a clamping and snapping shape, and the sliding sleeve and the reinforced cable are arranged in a sliding connection shape.

The beneficial effect of the above-mentioned further solution is that the sliding sleeve is clamped by the metal splint, so that when the connecting rope is reeled, the movable support arm is driven to move, thereby driving the sliding sleeve to slide outside the reinforced cable.

Technical effects and advantages of the present invention:

1. When the hoist lifts the U-shaped steel sheet pile as a whole, when the U-shaped steel sheet pile completely leaves the ground, the gear rotates by starting the forward and reverse rotation motor, thereby driving the toothed drum to rotate, so that the connecting rope is wound up , when the connecting rope is reeled, the load-bearing block is dragged back, so that the corresponding oil storage tank moves with it, the load-bearing block drives the wheel to rotate on the surface of the U-shaped steel sheet pile when it moves, and also makes the movable support arm move. The sleeve slides on the surface of the reinforced cable, so that the crane cable moves with the movable support arm. When the crane cable moves, the force point of the reinforced cable changes, so that one end of the U-shaped steel sheet pile is inclined by the gravitational inertia, so that the U The U-shaped steel sheet pile is transformed into a vertical state in the air, thereby avoiding the collision and deformation of the U-shaped steel sheet pile by single-point lifting, and the U-shaped steel sheet pile is converted into a vertical state in the air, which facilitates the operation of the static pile driver. stability and convenience;

2. The connecting rope drives the corresponding oil storage tank to move on the surface of the U-shaped steel sheet pile during winding, and rolls on the surface of the U-shaped steel sheet pile through the balls, so that the lubricating oil in the corresponding oil storage tank is smeared on the surface of the U-shaped steel sheet pile. The surface makes the static pile driver smoother when inserting the U-shaped steel sheet pile into the ground, thus improving the convenience.

Description of drawings

FIG. 1 is a schematic diagram of the overall structure of the present invention.

FIG. 2 is a cross-sectional view of the structure of the present invention.

FIG. 3 is an enlarged view of the structure of part A of FIG. 2 of the present invention.

FIG. 4 is an enlarged view of the structure of part B of FIG. 2 of the present invention.

FIG. 5 is a structural cross-sectional view of a corresponding type of oil storage tank of the present invention.

FIG. 6 is an enlarged view of the structure of part C of FIG. 5 of the present invention.

FIG. 7 is a cross-sectional view of the structure of the chassis of the present invention.

The reference signs are: 1. U-shaped steel sheet pile; 2. Round hole; 3. Active limit post; 4. Rubber sealing ring; 5. The first plywood; 6. The second plywood; Rotary motor; 9. Gear; 10. Toothed drum; 11. Connecting rope; 12. Load-bearing block; 13. Corresponding oil storage tank; 14. Limit wrapping box; 15. The first ring; 16. The first a lock; 17, reinforced cable; 18, a second lock; 19, a second ring; 20, a circular limit seat; 21, a telescopic rod; 22, a movable support arm; 23, a sliding sleeve; 24, The third ring; 25, hoist cable; 26, horizontal support rod; 27, wheel; 28, spherical seat; 29, ball; 30, counterweight; 31, threaded frame; 32, threaded cover; 33, circle 34, the fourth ring; 35, nylon rope; 36, metal splint.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

Example 1: The deep foundation pit support structure, as shown in Figure 1, includes a U-shaped steel sheet pile 1, as shown in Figure 3, one end of the U-shaped steel sheet pile 1 is provided with a circular hole 2, and the inner side of the circular hole 2 is provided with a circular hole 2. The movable limit column 3 is inserted into the circular hole 2 through the movable limit column 3 to play a fixed limit role for the U-shaped steel sheet pile 1. The outer side of the movable limit column 3 is provided with a rubber sealing ring 4, which passes through the rubber The setting of the sealing ring 4, when the movable limit post 3 is inserted into the inner cavity of the first splint 5, the rubber sealing ring 4 is squeezed, and the rubber sealing ring 4 wraps and limits the movable limit post 3 through its own resilience. It plays a role in limiting the movable limit post 3 and prevents the movable limit post 3 from slipping. The outer side of the rubber sealing ring 4 is fixedly installed with a first clamp plate 5, and one side of the first clamp plate 5 is fixedly installed with a second clamp plate 6. , the first splint 5 and the second splint 6 are attached to both sides of the U-shaped steel sheet pile 1, so that when the U-shaped steel sheet pile 1 is hoisted, it plays a stable supporting role for the U-shaped steel sheet pile 1, and the second One side of the splint 6 is fixedly installed with a chassis 7 for fixing the limit. As shown in Figure 7, the inner side of the chassis 7 is provided with a forward and reverse rotation motor 8. Model 6, the output end of the forward and reverse motor 8 is rotatably connected with a gear 9, the outer side of the gear 9 is meshed with a toothed drum 10, and a connecting rope 11 is wound around the outer side of the toothed drum 10. The setting of the toothed drum 10 is engaged, when the forward and reverse motor 8 is started, the gear 9 is driven to rotate, thereby driving the toothed drum 10 to rotate, so that the connecting rope 11 can be stretched and tightened, as shown in Figure 4, One end of the connecting rope 11 is fixedly connected with a bearing block 12, and the bearing block 12 is attached to the bottom of the U-shaped steel sheet pile 1, so as to play a stable supporting role for the U-shaped steel sheet pile 1. One side of the bearing block 12 is fixedly installed with a The corresponding type oil storage tank 13 is clamped to the outside of the U-shaped steel sheet pile 1 through the corresponding type oil storage tank 13, so as to play the role of limit support for the U-shaped steel sheet pile 1. The top of the corresponding type oil storage tank 13 is fixedly installed with a fixed limit A first ring 15 is fixedly installed on the top of the limit covering box 14 , as shown in FIG. 2 , the inner side of the first ring 15 is sleeved with the first ring 15 for fixing One end of the first lock 16 is fixedly connected with a reinforced cable 17, one end of the reinforced cable 17 is fixedly connected with a second lock 18, and the inner side of the second lock 18 is sleeved with a second circle Ring 19 , as shown in FIG. 4 , a circular limiting seat 20 is fixedly installed on one side of the limiting wrapping box 14 , and a telescopic rod 21 is inserted into the circular limiting seat 20 . The telescopic rod 21 plays a role of limiting support to prevent the telescopic rod 21 from falling off. As shown in FIG. 2 , a movable support arm 22 is fixedly installed at one end of the telescopic rod 21 . As shown in FIG. 1 , the top end of the movable support arm 22 is inserted A metal splint 36 is connected, and one side of the metal splint 36 is clamped with a sliding sleeve 23. The metal splint 36 is made of plastic material. sliding connection Setting, the sliding sleeve 23 is clamped by the metal splint 36, so that when the connecting rope 11 is reeled, the movable support arm 22 is driven to move, thereby driving the sliding sleeve 23 to slide outside the reinforced cable 17, and the outer side of the sliding sleeve 23 is fixedly connected with a first Three rings 24, the inner side of the third ring 24 is sleeved with a hoist cable 25, which is fixed with the third ring 24 by the hoist cable 25, so that the U-shaped steel sheet pile 1 is hoisted, and the inner part of the bearing block 12 is inserted There are transverse support rods 26, and both ends of the transverse support rods 26 are rotatably connected with wheels 27. Through the setting of the wheels 27, when the connecting rope 11 is being wound up, the wheels 27 roll on the surface of the U-shaped steel sheet pile 1, The corresponding type oil storage tank 13 is made to move more smoothly.

It should be noted that for the above technical solution, when the device is actually used, the U-shaped steel sheet pile 1 is drilled with an electric drill to dig out the circular hole 2, and the first clamp plate 5 and the second clamp plate 6 are clamped on the two sides of the U-shaped steel sheet pile 1. Then insert the movable limit post 3 into the first splint 5, use the rubber sealing ring 4 to fix the movable limit post 3, and then snap the corresponding type oil storage tank 13 into the other end of the U-shaped steel sheet pile 1, by sliding the sliding The sleeve 23 is slid to the center of the reinforced cable 17, so that the two ends of the U-shaped steel sheet pile 1 are kept stable, then the metal splint 36 is broken off and clamped to the outside of the sliding sleeve 23, and the hoist cable 25 is sleeved on the third circle. On the outside of the ring 24, when the hoist starts to lift the U-shaped steel sheet pile 1 as a whole, when the U-shaped steel sheet pile 1 completely leaves the ground, the gear 9 rotates by starting the forward and reverse rotation motor 8, thereby driving the toothed type. The rotating drum 10 rotates, so that the connecting rope 11 is reeled. When the connecting rope 11 is reeled, the load-bearing block 12 is dragged back, so that the corresponding type of oil storage tank 13 follows the movement. The rotation of the surface of the pile 1 also makes the movable support arm 22 move, pushing the sliding sleeve 23 to slide on the surface of the reinforced cable 17, so that the hoist cable 25 moves with the movable support arm 22. When the hoist cable 25 moves, the reinforced cable 25 moves. The force point of the cable 17 changes, so that one end of the U-shaped steel sheet pile 1 is inclined by the gravitational inertia, so that the U-shaped steel sheet pile 1 is transformed into a vertical state in the air, and the telescopic rod 21 is in contact with one side of the first splint 5 . When retracted, the floor space is reduced, so that the corresponding oil storage tank 13 can be as close to the first splint 5 as possible, so that the U-shaped steel sheet pile 1 can be vertical, and when the U-shaped steel sheet pile 1 becomes vertical , The U-shaped steel sheet pile 1 is fixed and limited by the movable limit column 3 to prevent the U-shaped steel sheet pile 1 from falling off.

Embodiment 2: As shown in FIG. 6 , a spherical seat 28 is fixedly installed in the inner cavity of the corresponding type oil storage tank 13, and one side of the spherical seat 28 is provided with a through hole, so that the lubricating oil in the corresponding type oil storage tank 13 can be discharged. The inner side of the seat 28 is rotatably connected with the balls 29, the number of the ball seats 28 and the balls 29 is set to be multiple, and the plurality of the ball seats 28 and the balls 29 are arranged in a path array in order with respect to the outer side of the U-shaped steel sheet pile 1, as shown in Figure 5 As shown in the figure, a counterweight block 30 is placed on the inner side of the limit cladding box 14, and the weight of both ends of the U-shaped steel sheet pile 1 is balanced by the setting of the counterweight block 30, so that it can be hoisted more smoothly. The corresponding type of oil storage tank 13 A threaded frame 31 is fixedly installed on the top of the threaded frame 31 , and a threaded cover 32 is threadedly connected to the inner side of the threaded frame 31 .

It should be noted for the above technical solutions that, when the device is actually used, the threaded cover 32 is unscrewed, so that the lubricating oil is poured from the threaded frame 31 into the inner cavity of the corresponding type of oil storage tank 13, and then the threaded cover 32 and the threaded When the cover 32 is tightened, when the corresponding type oil storage tank 13 is moving, the balls 29 roll on the surface of the U-shaped steel sheet pile 1, so as to apply the lubricating oil in the corresponding type oil storage tank 13 on the surface of the U-shaped steel sheet pile 1.

Embodiment 3: As shown in FIG. 2 , a circular limiting cylinder 33 is fixedly installed on one side of the second clamping plate 6 , and a fourth annular ring 34 is fixedly installed at the bottom end of the movable limiting column 3 . Nylon rope 35 is sleeved on the outside.

It should be noted that for the above technical solution, when the device is actually used, when the U-shaped steel sheet pile 1 is in a vertical state, the U-shaped steel sheet pile 1 is fixed by a static pile driver, and the worker grabs the nylon rope 35 on the ground. Drag backwards to pull the movable limit post 3 out of the circular hole 2, so that the movable limit post 3 and the U-shaped steel sheet pile 1 are no longer in contact, and then the hoist lifts and pulls the device out.

The last points to be noted are: First of all, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, and may be mechanical connection. or electrical connection, or internal communication between two components, or direct connection, "up", "down", "left", "right", etc. are only used to indicate relative positional relationship, when the absolute position of the object being described changes, the relative positional relationship may change;

Secondly: in the drawings of the disclosed embodiments of the present invention, only the structures involved in the embodiments of the present disclosure are involved, other structures can refer to the general design, and the same embodiment and different embodiments of the present invention can be combined with each other under the condition of no conflict;

Finally: the above is only the preferred embodiment of the present invention, and is not intended to limit the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the present invention. within the scope of protection.

Claims (7)

1. Deep basal pit supporting construction, including U shaped steel sheet pile (1), its characterized in that: round hole (2) have been seted up to the one end of U shaped steel sheet pile (1), the inboard of round hole (2) is equipped with activity spacing post (3), the outside of activity spacing post (3) is equipped with rubber seal (4), the outside fixed mounting of rubber seal (4) has first splint (5), one side fixed mounting of first splint (5) has second splint (6), one side fixed mounting of second splint (6) has quick-witted case (7), the inboard of quick-witted case (7) is equipped with just reverse motor (8), the output of just reverse motor (8) rotates and is connected with gear (9), the outside meshing of gear (9) has tooth type rotary drum (10), the outside round trip of tooth type rotary drum (10) has connection rope (11), the one end fixedly connected with reinforcing block (12) of connection rope (11), one side fixed mounting of bearing block (12) has corresponding type batch oil tank (13), the top fixed mounting of corresponding type batch oil tank (13) has spacing cladding case (14), the top fixed mounting of spacing cladding case (14) has first ring reinforcing ring (15), first bearing ring (15) fixed mounting has first hawser (17) first hasp (17), first hasp (17) fixed mounting has reinforcing block (17), and second hasp (17) has first hawser (17) The utility model discloses a locking device, second ring (19) have been cup jointed to the inboard of second hasp (18), one side fixed mounting of spacing cladding case (14) has circular spacing seat (20), the inside of circular spacing seat (20) is pegged graft and is had telescopic link (21), the one end fixed mounting of telescopic link (21) has movable support arm (22), peg graft on the top of movable support arm (22) has metal splint (36), one side joint of metal splint (36) has slip cap (23), the outside fixedly connected with third ring (24) of slip cap (23), crane hawser (25) have been cup jointed to the inboard of third ring (24).

2. The deep foundation pit supporting structure according to claim 1, wherein: the bearing block (12) is internally inserted with a transverse supporting rod (26), and two ends of the transverse supporting rod (26) are rotatably connected with wheels (27).

3. The deep foundation pit supporting structure according to claim 1, wherein: the inner cavity of the corresponding oil storage tank (13) is fixedly provided with a spherical seat (28), and the inner side of the spherical seat (28) is rotatably connected with a ball (29).

4. The deep foundation pit supporting structure according to claim 3, wherein: spherical seat (28) and ball (29) quantity sets up to a plurality ofly, and is a plurality of spherical seat (28) and ball (29) are the route array and arrange the setting in proper order about the outside of U shaped steel sheet pile (1).

5. The deep foundation pit supporting structure according to claim 3, wherein: balancing weight (30) have been placed to the inboard of spacing cladding case (14), the top fixed mounting that corresponds type batch oil tank (13) has screw thread frame (31), the inboard threaded connection of screw thread frame (31) has screw thread lid (32).

6. The deep foundation pit supporting structure according to claim 1, wherein: one side fixed mounting of second splint (6) has circular spacing section of thick bamboo (33), the bottom fixed mounting of activity spacing post (3) has fourth ring (34), nylon rope (35) have been cup jointed in the outside of fourth ring (34).

7. The deep foundation pit supporting structure according to claim 1, wherein: metal splint (36) are the plasticity material, metal splint (36) are centre gripping joint form setting with slip cap (23), slip cap (23) are the sliding connection form setting with reinforcement type hawser (17).

Images