A kind of bridge steel sheet pile cofferdam device and construction method

Abstract

The present invention discloses a bridge steel sheet pile cofferdam device and a construction method, relating to the technical field of bridge cofferdams; it includes outer plates that are buckled with each other at the head and tail, and inner plates that are buckled with each other at the head and tail. The inner plates are located inside the outer plates, and a filling cavity is formed between the inner plates and the outer plates; fixing members are arranged between the outer plates and the inner plates for fixing the outer plates and the inner plates; the fixing members include mounting platforms, on which connecting frames are provided; a first fixing plate and a second fixing plate are slidably arranged on the mounting platforms, and a support member is arranged on the second fixing plate, and a support frame is installed on the support member; a pressing member is arranged on the connecting frame, a water pump is arranged at the top of the connecting frame, and vibrating members are arranged on both sides of the connecting frame for vibrating the filling material; a drilling member is arranged at the bottom of the connecting frame, and the drilling member includes a drill bit that drills into the ground for fixation; the present invention can improve the construction efficiency of the cofferdam, make the cofferdam construction operation convenient and efficient, and has rich functions, replacing the traditional fixed connection method.

Description

Technical Field

[0001] The present invention relates to the technical field of bridge cofferdams, and in particular to a bridge steel plate cofferdam device and a construction method. Background Art

[0002] The bridge steel plate cofferdam is an engineering facility commonly used in bridge construction. Its main function is to provide a temporary underwater environment during the construction process to facilitate foundation construction, especially when building bridge piers and foundations in water bodies. The cofferdam is usually made of steel plates, which have high strength and durability and can effectively withstand water pressure and soil pressure. The cofferdam is composed of a series of steel plates, which can be welded or bolted according to construction needs; the types of cofferdams include single-sided cofferdams, double-sided cofferdams and integral cofferdams. In the current cofferdam construction process, in order to improve the stability of the cofferdam, some support plates need to be fixed between the cofferdam plates on the inner and outer sides, and connected by bolts and other connectors. In terms of construction, the process is cumbersome, the strength is high, and subsequent dismantling is also difficult; in addition, the cofferdam construction process is cumbersome, and the cofferdam function is relatively single, resulting in low cofferdam construction efficiency; based on this, the present invention proposes a bridge steel plate cofferdam device and construction method to improve the cofferdam construction efficiency, make the cofferdam construction operation convenient and efficient, and rich in functions, replacing the traditional fixed connection method. Summary of the invention

[0003] In view of the above technical problems, the present invention can improve the efficiency of cofferdam construction, make the cofferdam construction operation convenient and efficient, and has rich functions, replacing the traditional fixed connection method.

[0004] The use scheme of the present invention is as follows: a bridge steel plate cofferdam device comprises an outer plate that is interlocked with each other at the head and tail, and an inner plate that is interlocked with each other at the head and tail, the inner plate is located on the inner side of the outer plate, and a filling cavity is formed between the inner plate and the outer plate; a fixing member is arranged between the outer plate and the inner plate for fixing the outer plate and the inner plate; the fixing member comprises a mounting platform, and a connecting frame is arranged on the mounting platform; a fixing plate 1 and a fixing plate 2 are slidably arranged on the mounting platform, and a supporting member is arranged on the fixing plate 2, and a supporting frame is installed on the supporting member; a clamping member is arranged on the connecting frame, and the clamping member comprises two telescopic plates slidably arranged on the connecting frame, and a clamping plate is telescopically arranged on the telescopic plate; one of the clamping plates is connected to the fixing plate 1 The outer plate is pressed tightly, and another clamping plate and the second fixing plate press the inner plate tightly; a water pump is arranged on the top of the connecting frame, and a water pipe is connected to the water pump, and the water pipe is located inside the connecting frame and extends to the bottom of the connecting frame; vibrators are arranged on both sides of the connecting frame for vibrating the filler; the vibrator includes a vibration box arranged on the connecting frame, and a vibration plate is telescopically arranged on the vibration box, and an eccentric disk is rotated and arranged in an array inside the vibration box, and the eccentric disk rotates to drive the vibration plate to reciprocate and vibrate; a drilling member is arranged at the bottom of the connecting frame, and the drilling member includes a drilling seat arranged at the bottom of the connecting frame, and a drill bit is telescopically and rotatably arranged on the drilling seat, and the drill bit drills into the ground for fixation.

[0005] Furthermore, buckling parts are respectively provided between the outer plates connected end to end and between the inner plates connected end to end, and two adjacent outer plates and two adjacent inner plates are buckled together through the buckling parts.

[0006] Furthermore, a second motor and a second screw rod are arranged on the mounting platform. The second motor is used to drive the second screw rod. The second screw rod forms a spiral pair with the first fixing plate and the second fixing plate respectively.

[0007] Furthermore, the support member includes a support platform arranged on the second fixed plate, a control screw is threadedly connected to the support platform, one end of the control screw is rotatably connected to a pushing part, the pushing part is slidably arranged on the support platform, and a support seat is slidably arranged on the support platform, and a pushing inclined part is respectively arranged on the support seat and the pushing part, and the support seat is pushed by the pushing part; a fixing hole is opened on the support seat, and a fixing hole is also opened on the support frame, the support seat is used to support the support frame, and the support seat and the support frame are fixed to each other by a fixing pin shaft; a support spring for providing elastic force is connected between the support seat and the support platform.

[0008] Furthermore, the clamping member includes a motor three arranged on the mounting table, a screw rod three and a guide rod are arranged inside the connecting frame, and the screw rod three is driven by the motor three; a slide seat is movably arranged on the screw rod three and the guide rod, and the slide seat and the screw rod three form a spiral pair; a connecting rod is rotatably installed on the slide seat, one end of the connecting rod is rotatably connected to the telescopic plate, and a spring for providing elastic force is connected between the telescopic plate and the clamping plate.

[0009] Furthermore, the vibration component includes a motor 1 arranged on a mounting table, a belt structure is arranged on an output shaft of the motor 1, a rotating shaft is rotatably installed inside a vibration box, the rotating shaft is driven by the belt structure on the output shaft of the motor 1, the eccentric disk is fixedly connected to the rotating shaft, and a vibration spring for providing elastic force is connected between the vibration plate and the vibration box.

[0010] Furthermore, the drilling component includes a driving motor arranged inside the drilling seat, a gear ring is arranged on the output shaft of the driving motor, which rotates inside the drilling seat and an array of gears is arranged, and the gears are meshed with the gear ring; the drill bit is axially slidably fitted on the gear, and a drilling cylinder is arranged inside the drilling seat, and the telescopic rod of the drilling cylinder is rotationally connected to the end of the drill bit to control the axial movement of the drill bit.

[0011] A bridge steel plate cofferdam construction method comprises the following steps:

[0012] Step 1: insert the outer plate and the inner plate into the ground through a pile driver, and the outer plate is buckled with each other end to end, and the inner plate is also buckled with each other end to end, the inner plate is located on the inner side of the outer plate, and a filling cavity is formed between the inner plate and the outer plate;

[0013] Step 2: Install the fixing piece in the filling cavity between the outer plate and the inner plate to fix the outer plate and the inner plate; drill the drilling piece at the bottom of the fixing piece into the ground to stabilize it; install the support frame on the fixing piece to form an internal support;

[0014] Step 3: Pumping out the water in the filling cavity by using a water pump;

[0015] Step 4: Fill the filling cavity with sand and gravel, and vibrate the sand and gravel through the vibrating member.

[0016] Compared with the prior art, the present invention has the following advantages: (1) when pumping water into the filling chamber, the water pump can be used, and the water inlet at the bottom of the connecting frame can be used for pumping water, instead of placing the pumping equipment; (2) when placing sand and gravel into the filling chamber, the motor can be used to rotate the rotating shaft and the eccentric disk, and the eccentric disk repeatedly impacts the vibration plate to vibrate the vibration plate. A vibration spring providing elastic force is connected between the vibration plate and the vibration box; the sand and gravel can be flattened by the vibration of the vibration plate, making the sand and gravel placing operation more convenient. When the sand and gravel are subsequently recovered, the vibration of the vibration plate can also be used to loosen the sand and gravel for easy recovery; (3) the support member can be adjusted to facilitate The support frame is installed, specifically, by rotating the control screw, the pushing part moves, and the pushing part pushes the support seat, thereby changing the position of the support seat. The support frame is installed on the support seat and fixed by matching the fixing pin shaft with the fixing hole; (4) The gear ring rotates to rotate the gears, thereby rotating the drill bit, and the drilling cylinder controls the axial movement of the drill bit, that is, moves on the gear, so that it drills into the ground, thereby improving stability; (5) Among the two clamping plates, one clamping plate and fixed plate 1 press the outer plate, and the other clamping plate and fixed plate 2 press the inner plate; the telescopic plate slides, that is, the clamping plate slides, and a spring is provided between the clamping plate and the telescopic plate, so that the clamping plate can be adaptively telescopic. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0018] Figure 2 It is a top view of the overall structure of the present invention.

[0019] Figure 3 For the present invention Figure 2 A is an enlarged schematic diagram of the area marked in the middle.

[0020] Figure 4 It is a schematic diagram of the installation structure of the fixing member of the present invention.

[0021] Figure 5 It is a schematic diagram of the installation structure on the installation platform of the present invention.

[0022] Figure 6It is a schematic diagram of the installation structure of the connecting frame of the present invention.

[0023] Figure 7 This is a schematic diagram of the clamping plate installation structure of the present invention.

[0024] Figure 8 It is a schematic diagram of the internal structure of the connecting frame of the present invention.

[0025] Fig. 9 It is a schematic diagram of the installation structure of the telescopic plate of the present invention.

[0026] Fig.10 This is a schematic diagram of the installation structure of the vibration plate of the present invention.

[0027] Fig.11 It is a schematic diagram of the internal structure of the vibration box of the present invention.

[0028] Fig.12 It is a structural schematic diagram of the drilling seat of the present invention.

[0029] Fig.13 It is a schematic diagram of the internal installation structure of the drilling seat of the present invention.

[0030] Fig.14 It is a schematic diagram of the support structure of the present invention.

[0031] Fig.15 It is a schematic diagram of the local structure of the support member of the present invention.

[0032] 1-outer plate; 2-inner plate; 3-support frame; 4-fastening part; 5-mounting platform; 6-connecting frame; 7-motor one; 8-water pump; 801-water pipe; 9-motor two; 10-screw rod two; 11-motor three; 12-fixed plate one; 13-fixed plate two; 14-vibration box; 15-vibration plate; 1501-vibration spring; 16-clamping plate; 17-screw rod three; 18-sliding seat; 19-guide rod; 20-connecting rod; 21-telescopic plate; 22-spring; 23-rotating shaft; 24-eccentric disk; 25-drilling seat; 26-drill bit; 27-driving motor; 28-drilling cylinder; 29-gear; 30-gear ring; 31-support platform; 32-control screw; 33-pushing part; 34-support seat; 35-support spring; 36-fixing pin shaft. DETAILED DESCRIPTION

[0033] Example: Figures 1 to 15 As shown, a bridge steel plate cofferdam device includes an outer plate 1 that is interlocked with each other at the end and an inner plate 2 that is interlocked with each other at the end, the inner plate 2 is located on the inner side of the outer plate 1, and a filling cavity is formed between the inner plate 2 and the outer plate 1; interlocking parts 4 are respectively arranged between the outer plates 1 that are interconnected end to end and between the inner plates 2 that are interconnected end to end, and two adjacent outer plates 1 and two adjacent inner plates 2 are respectively interlocked through the interlocking parts 4.

[0034] A fixing member is provided between the outer plate 1 and the inner plate 2 for fixing the outer plate 1 and the inner plate 2; the fixing member includes a mounting platform 5, on which a connecting frame 6 is provided; a fixing plate 12 and a fixing plate 2 13 are slidably provided on the mounting platform 5, and a supporting member is provided on the fixing plate 2 13, on which a supporting frame 3 is installed; a pressing member is provided on the connecting frame 6, and the pressing member includes two telescopic plates 21 slidably provided on the connecting frame 6, on which a clamping plate 16 is telescopically provided; one of the clamping plates 16 and the fixing plate 1 12 press the outer plate 1, and the other clamping plate 16 and the fixing plate 2 13 press the inner plate 2; a pumping member is provided on the top of the connecting frame 6 Pump 8, the water pump 8 is connected to a water pipe 801, the water pipe 801 is located inside the connecting frame 6 and extends to the bottom of the connecting frame 6; vibrators are arranged on both sides of the connecting frame 6 for vibrating the filler; the vibrator includes a vibration box 14 arranged on the connecting frame 6, a vibration plate 15 is telescopically arranged on the vibration box 14, an eccentric disk 24 is rotated and arranged in an array inside the vibration box 14, the eccentric disk 24 rotates to drive the vibration plate 15 to vibrate reciprocatingly; a drilling member is arranged at the bottom of the connecting frame 6, the drilling member includes a drilling seat 25 arranged at the bottom of the connecting frame 6, a drill bit 26 is telescopically and rotatably arranged on the drilling seat 25, and the drill bit 26 is drilled into the ground for fixation.

[0035] The mounting platform 5 is provided with a motor 2 9 and a screw rod 2 10. The motor 2 9 is used to drive the screw rod 2 10. The screw rod 2 10 forms a spiral pair with the fixing plate 1 12 and the fixing plate 2 13 respectively. The support member includes a support platform 31 arranged on the fixing plate 2 13. The support platform 31 is threadedly connected with a control screw rod 32. One end of the control screw rod 32 is rotatably connected with a pushing portion 33. The pushing portion 33 is slidably arranged on the support platform 31, and a support seat 34 is slidably arranged on the support platform 31. The support seat 34 and the pushing portion 33 are respectively provided with pushing inclined portions, and the support seat 34 is pushed by the pushing portion 33. A fixing hole is opened on the support seat 34, and a fixing hole is also opened on the support frame 3. The support seat 34 is used to support the support frame 3, and the support seat 34 and the support frame 3 are fixed to each other by a fixing pin shaft 36. A support spring 35 for providing elastic force is connected between the support seat 34 and the support platform 31.

[0036] The clamping part includes a motor 3 11 arranged on the mounting table 5, a screw rod 3 17 and a guide rod 19 are arranged inside the connecting frame 6, and the screw rod 3 17 is driven by the motor 3 11; a slide 18 is movably arranged on the screw rod 3 17 and the guide rod 19, and the slide 18 and the screw rod 3 17 form a spiral pair; a connecting rod 20 is rotatably installed on the slide 18, one end of the connecting rod 20 is rotatably connected to the telescopic plate 21, and a spring 22 for providing elastic force is connected between the telescopic plate 21 and the clamping plate 16.

[0037] The vibrating member includes a motor 7 arranged on a mounting platform 5, a belt structure is arranged on an output shaft of the motor 7, a rotating shaft 23 is rotatably installed inside the vibration box 14, the rotating shaft 23 is driven by the belt structure on the output shaft of the motor 7, an eccentric disk 24 is fixedly connected to the rotating shaft 23, and a vibration spring 1501 for providing elastic force is connected between the vibration plate 15 and the vibration box 14.

[0038] The drilling component includes a driving motor 27 arranged inside the drilling seat 25, a gear ring 30 is arranged on the output shaft of the driving motor 27, and gears 29 are arranged in an array and rotate inside the drilling seat 25, and the gears 29 are meshed with the gear ring 30; the drill bit 26 is axially slidably fitted on the gear 29, and a drilling cylinder 28 is arranged inside the drilling seat 25, and the telescopic rod of the drilling cylinder 28 is rotatably connected to the end of the drill bit 26 to control the axial movement of the drill bit 26.

[0039] The principles of the present invention are as follows: the outer plate 1 and the inner plate 2 are inserted into the ground by piling equipment to form an operating area, and the fixing parts are installed in the filling cavity between the outer plate 1 and the inner plate 2 to fix the outer plate 1 and the inner plate 2. The number of fixing parts can be set accordingly according to the number of the outer plate 1 and the inner plate 2; among the two clamping plates 16, one clamping plate 16 and the fixing plate 1 12 press the outer plate 1, and the other clamping plate 16 and the fixing plate 2 13 press the inner plate 2; specifically, by the operation of the motor 2 9, the screw rod 2 10 rotates to move the fixing plate 1 12 and the fixing plate 2 13, and by the operation of the motor 3 11, the screw rod 3 17 rotates to make the slide 18 slide, and under the connecting action of the connecting rod 20, the telescopic plate 21 slides, that is, the clamping plate 16 slides, and a spring 22 is provided between the clamping plate 16 and the telescopic plate 21 so that the clamping plate 16 can be adaptively telescopic.

[0040] Furthermore, the drive motor 27 can be operated to rotate the ring gear 30, so that each gear 29 rotates, and then the drill bit 26 rotates. The drilling cylinder 28 controls the axial movement of the drill bit 26, that is, moves on the gear 29, so that it drills into the ground, thereby improving stability.

[0041] Furthermore, a support frame 3 is provided on the support member for internal support; specifically, the support member can be adjusted according to the position of the inner plate 2. When the outer plate 1 and the inner plate 2 are piled, the position of each insertion cannot be accurately guaranteed. Therefore, the support member is adjusted to facilitate the installation of the support frame 3. Specifically, by rotating the control screw 32, the pushing part 33 is moved, and the pushing part 33 pushes the support seat 34, so that the position of the support seat 34 changes, and the support frame 3 is installed on the support seat 34, and the fixing is completed by the fixing pin 36 cooperating with the fixing hole.

[0042] When pumping water from the filling chamber, the water pump 8 can be used, and the water inlet of the water pipe 801 at the bottom of the connecting frame 6 can be used for pumping water, instead of putting in the pumping equipment; when putting sand and gravel into the filling chamber, the motor 7 can be used to rotate the rotating shaft 23 and the eccentric disk 24, and the eccentric disk 24 repeatedly hits the vibration plate 15 to make the vibration plate 15 vibrate, and a vibration spring 1501 providing elastic force is connected between the vibration plate 15 and the vibration box 14; the sand and gravel can be flattened by the vibration of the vibration plate 15, making the sand and gravel putting operation more convenient, and when the sand and gravel are recovered later, the vibration of the vibration plate 15 can also be used to loosen the sand and gravel for easy recovery; when the fixing parts are recovered, the drilling parts are separated from the ground, and the fixing plate 12 and the fixing plate 2 13 release the clamping of the outer plate 1 and the inner plate 2.

Claims

1. A bridge steel plate cofferdam device, comprising an outer plate (1) that is interlocked end to end, and an inner plate (2) that is interlocked end to end, wherein the inner plate (2) is located on the inner side of the outer plate (1), and a filling cavity is formed between the inner plate (2) and the outer plate (1); characterized in that: A fixing member is provided between the outer plate (1) and the inner plate (2) for fixing the outer plate (1) and the inner plate (2); the fixing member comprises a mounting platform (5), and a connecting frame (6) is provided on the mounting platform (5); a fixing plate 1 (12) and a fixing plate 2 (13) are slidably provided on the mounting platform (5), and a supporting member is provided on the fixing plate 2 (13), and a supporting frame (3) is installed on the supporting member; a pressing member is provided on the connecting frame (6), and the pressing member comprises two telescopic plates (21) slidably provided on the connecting frame (6), and a clamping plate (16) is telescopically provided on the telescopic plate (21); one of the clamping plates (16) and the fixing plate 1 (12) press the outer plate (1), and the other clamping plate (16) and the fixing plate 2 (13) press the inner plate (2); a fixing plate (16) is provided on the top of the connecting frame (6); A water pump (8) is provided, the water pump (8) being connected to a water pipe (801), the water pipe (801) being located inside the connecting frame (6) and extending to the bottom of the connecting frame (6); vibrating members are provided on both sides of the connecting frame (6) for vibrating the filler; the vibrating member comprises a vibrating box (14) provided on the connecting frame (6), a vibrating plate (15) being telescopically provided on the vibrating box (14), an eccentric disk (24) being arranged in an array and rotating inside the vibrating box (14), the eccentric disk (24) rotating to drive the vibrating plate (15) to vibrate reciprocatingly; a drilling member is provided at the bottom of the connecting frame (6), the drilling member comprises a drilling seat (25) provided at the bottom of the connecting frame (6), a drill bit (26) being telescopically and rotatably provided on the drilling seat (25), the drill bit (26) being drilled into the ground for fixation; The mounting platform (5) is provided with a second motor (9) and a second screw rod (10), wherein the second motor (9) is used to drive the second screw rod (10), and the second screw rod (10) respectively forms a spiral pair with the first fixing plate (12) and the second fixing plate (13); The support member comprises a support platform (31) arranged on the second fixing plate (13); a control screw rod (32) is threadedly connected to the support platform (31); one end of the control screw rod (32) is rotatably connected to a pushing portion (33); the pushing portion (33) is slidably arranged on the support platform (31); and a support seat (34) is slidably arranged on the support platform (31); the support seat (34) and the pushing portion (33) are respectively provided with pushing inclined portions; the support seat (34) is pushed by the pushing portion (33); a fixing hole is provided on the support seat (34); and a fixing hole is also provided on the support frame (3); the support seat (34) is used to support the support frame (3); and the support seat (34) and the support frame (3) are fixed to each other via a fixing pin shaft (36); and a support spring (35) for providing elastic force is connected between the support seat (34) and the support platform (31).

2. A bridge steel plate cofferdam device according to claim 1, characterized in that: A buckling portion (4) is provided between the outer panels (1) connected end to end and between the inner panels (2) connected end to end, respectively, and two adjacent outer panels (1) and two adjacent inner panels (2) are buckled together via the buckling portion (4).

3. A bridge steel plate cofferdam device according to claim 1, characterized in that: The clamping member comprises a motor three (11) arranged on a mounting platform (5), a screw rod three (17) and a guide rod (19) are arranged inside a connecting frame (6), the screw rod three (17) is driven by the motor three (11); a slide seat (18) is movably arranged on the screw rod three (17) and the guide rod (19), and the slide seat (18) and the screw rod three (17) form a spiral pair; a connecting rod (20) is rotatably mounted on the slide seat (18), one end of the connecting rod (20) is rotatably connected to the telescopic plate (21), and a spring (22) for providing elastic force is connected between the telescopic plate (21) and the clamping plate (16).

4. A bridge steel plate cofferdam device according to claim 1, characterized in that: The vibrating member comprises a motor 1 (7) arranged on a mounting platform (5), a belt structure being arranged on an output shaft of the motor 1 (7), a rotating shaft (23) being rotatably mounted inside a vibration box (14), the rotating shaft (23) being driven by the belt structure on the output shaft of the motor 1 (7), an eccentric disk (24) being fixedly connected to the rotating shaft (23), and a vibration spring (1501) for providing elastic force being connected between the vibration plate (15) and the vibration box (14).

5. A bridge steel plate cofferdam device according to claim 1, characterized in that: The drilling member comprises a driving motor (27) arranged inside a drilling seat (25); a gear ring (30) is arranged on the output shaft of the driving motor (27) and rotates inside the drilling seat (25); gears (29) are arranged in an array, and the gears (29) are meshed with the gear ring (30); a drill bit (26) is axially slidably engaged on the gear (29), and a drilling cylinder (28) is arranged inside the drilling seat (25); a telescopic rod of the drilling cylinder (28) is rotatably connected to the end of the drill bit (26) to control the axial movement of the drill bit (26).

6. A construction method using the bridge steel plate cofferdam device according to any one of claims 1 to 5, characterized in that: The following steps are involved: Step 1: insert the outer plate (1) and the inner plate (2) into the ground by means of a pile driver, with the outer plate (1) being interlocked end to end, and the inner plate (2) also being interlocked end to end, with the inner plate (2) being located on the inner side of the outer plate (1), and forming a filling cavity between the inner plate (2) and the outer plate (1); Step 2: Install the fixing member in the filling cavity between the outer plate (1) and the inner plate (2) to fix the outer plate (1) and the inner plate (2); drill the drilling member at the bottom of the fixing member into the ground to play a stabilizing role; install the support frame (3) on the fixing member to form an internal support; Step 3: Pumping water out of the filling cavity by using a water pump (8); Step 4: Fill the filling cavity with sand and gravel, and vibrate the sand and gravel through the vibration plate (15).

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