A method for quickly removing partition walls in foundation pit

Abstract

The invention discloses a method for quickly dismantling a partition wall in a foundation pit, which belongs to the technical field of building construction. The method comprises the following steps: 1) dividing the partition wall; 2) installing a device for dismantling the partition wall; 3) cutting operation; 4) conveying operation; 5) repeating operation; and 6) recovering the device. The method aims to solve the problem that when dismantling the partition wall, the cut partition wall is easy to topple over or shake left and right, resulting in high safety risks and low construction efficiency.

Description

Technical Field

[0001] The invention belongs to the technical field of building construction, and in particular relates to a method for quickly dismantling a partition wall in a foundation pit. Background Art

[0002] The middle partition wall serves as a temporary supporting structure for the construction of super-large foundation pits in soft soil areas. It helps to reduce the deformation of the foundation pit and is of great significance in reducing the risks during the construction period of super-large foundation pits. It will be demolished after the underground structure construction is completed.

[0003] The traditional demolition method is to use machines or pickaxes to chisel away, which has the disadvantages of low construction efficiency, high noise, vibration and dust on site, and difficult waste collection. When using cutting methods such as chain saws, there is a problem that when the last cut is made (before the concrete block is completely separated from the surrounding middle partition wall), the cut middle partition wall is easy to topple over or sway left and right, which poses a high safety risk. In addition, when the last cut is made, a car crane is often needed to use a wire rope to hang the middle partition wall in advance, which reduces construction efficiency. Summary of the invention

[0004] In view of this, the present invention discloses a method for quickly dismantling a partition wall in a foundation pit, which aims to solve the problem that when the partition wall is dismantled, the cut partition wall is easy to topple over or shake left and right, resulting in high safety risks and low construction efficiency.

[0005] In order to achieve the above object, the present invention provides the following technical solutions:

[0006] A construction method for a middle partition wall removal device comprises the following steps:

[0007] Step 1), dividing the middle partition wall: dividing the middle partition wall to be demolished into several areas, and the width of each area is smaller than the width of the lifting plate; punching a group of mounting holes on the middle partition wall of each area, and installing support rods in the mounting holes;

[0008] Step 2) Install the middle partition wall removal device: open a through groove on the top plate along the length direction of the middle partition wall, and lift the removal device into the through groove; keep the groove facing the top plate, control the extension of the two-way push rod to push the connecting seat toward the top plate until the base and the top plate are against each other; adjust the height of the roller to make the roller contact with the top plate;

[0009] Step 3), cutting operation: use the traction equipment to lower the lifting plate to the connection structure and face the support rod on the middle partition wall to be cut; energize the electromagnet to make it absorb the positioning rod, remove the locking pin, and then start the hydraulic push structure to push the moving seat and the lifting plate toward the middle partition wall, so that the lifting plate fits the middle partition wall. In this process, move the seat body to ensure that the end of the support rod passes through the deflection ball; install the card and block at the end of the support rod and connect and fix the card and block with the deflection ball, reset the locking pin at the same time, and turn off the power of the electromagnet;

[0010] Then, the adjusting block is rotated forward, and the adjusting block drives the annular block to move toward the middle partition wall, and the annular block drives the adjusting rod to drive the top support rod to deflect toward the middle partition wall until the clamping plate at the end of the top support rod abuts against the remaining middle partition wall;

[0011] Then use a chain saw to cut the middle partition wall to be cut;

[0012] Step 4) Conveying operation: Use the traction equipment to lift the lifting plate and the cut middle partition wall upward until the bottom of the middle partition wall is higher than the base; at this time, the sliding seat is driven horizontally by the power device, thereby driving the middle partition wall to move horizontally until the middle partition wall extends out of the mounting frame, and then the middle partition wall is lowered by the traction equipment, and the support rod is recovered;

[0013] Remove the card and block and the locking pin, and energize the electromagnet, and then drive the lifting plate to separate from the middle partition through the hydraulic pushing structure until the support rod is separated from the connecting structure; then use the traction equipment to reset the lifting plate, and drive the sliding seat to move horizontally and reset through the hydraulic pushing structure;

[0014] 5) Repeat the operation: Repeat steps 3) and 4) to remove the middle partition wall from top to bottom; when the middle partition wall in the same vertical column is removed, rotate the adjustment block in the opposite direction to retract the clamping plate, and then move the device to the top of the middle partition wall in the next vertical column by the roller and continue to remove it;

[0015] 6) Device recovery: After the dismantling is completed, use the lifting equipment to apply traction to the dismantling device, and then control the two-way push rod to retract until the base is separated from the top plate, and then use the lifting equipment to recover the dismantling device.

[0016] The middle partition wall removal device comprises a middle partition wall and a top plate, wherein the middle partition wall is provided with a plurality of mounting holes, a through slot is provided on the top plate along the length direction of the middle partition wall, a base is provided above the through slot, connecting plates arranged downwardly inclined are hinged on both sides of the base, the ends of the connecting plates are hinged with connecting seats extending into the through slot, a groove for accommodating the top plate is provided on the side wall of the connecting seat, rollers which fit the top plate are provided on the upper and lower walls of the groove, and the height of the rollers is adjustable; two slide rails which are horizontally and perpendicularly to the middle partition wall are provided on the base, a sliding seat is slidably connected to the slide rails, a mounting frame is connected to the oblique upper side of the sliding seat through a truss, and the sliding The moving seat is provided with a power device to drive it to move; a working groove located between the slide rails is provided on the base and the sliding seat, two symmetrically arranged moving seats are slidably connected with the working groove on the mounting frame, and a hydraulic pushing structure connected with the moving seat is provided on the mounting frame, and lifting plates are vertically slidably provided at the opposite ends of adjacent moving seats, and a lifting frame is provided on the moving seat, and a traction device for driving the lifting plate is provided on the lifting frame; support rods are provided in the mounting holes, and connection structures detachably connected to the support rods are provided on the opposite end surfaces of adjacent lifting plates; horizontally arranged bidirectional push rods are hinged between the ends of adjacent connecting plates.

[0017] In this scheme, the middle partition wall to be demolished is divided into several areas, and the width of each area is smaller than the width of the lifting plate; a group of mounting holes are punched on the middle partition wall of each area, and support rods are installed in the mounting holes; a through groove is opened on the top plate along the length direction of the middle partition wall, and the demolition device is hoisted into the through groove; the groove is kept facing the top plate, and the two-way push rod is controlled to extend to push the connecting seat toward the top plate until the base and the top plate are against each other; the height of the roller is adjusted to make the roller contact with the top plate; the lifting plate is lowered by the traction equipment until the connecting structure is facing the support rod on the middle partition wall to be cut, and then the hydraulic pushing structure is started to push the moving seat and other structures to drive the lifting plate toward the middle partition wall, so that the lifting plate fits the middle partition wall, and the support rod is connected to the connecting structure; after the middle partition wall is cut, the removed middle partition wall is lifted upward by the traction equipment, and then the middle partition wall is horizontally transported to the conveying equipment on the side by the power device.

[0018] In this solution, an inclined connecting plate is used to convert part of the gravity of the device and the middle partition wall during hoisting into a lateral force to avoid the top plate from breaking due to excessive weight; at the same time, the demolition device uses a lifting plate to support and limit the middle partition wall to prevent tipping or shaking; in addition, there is no need to use additional equipment to hoist the middle partition wall, which improves construction efficiency.

[0019] Furthermore, a plurality of supporting structures are arranged on the upper parts of the facing end surfaces of adjacent lifting plates, and the supporting structures include a plurality of inclined support rods which are butted end to end, and supports are arranged at the butting parts of adjacent support rods, and the ends of the support rods are hinged to the corresponding supports; a plurality of vertically arranged connecting grooves are provided on the upper parts of the facing end surfaces of adjacent lifting plates, and a plurality of positioning holes are provided on both sides of the connecting grooves; the supports are slidably connected to the adjacent connecting grooves, and a cavity is provided inside the supports, and slide grooves are provided on both sides of the cavities, and positioning rods cooperating with the positioning holes are slidably connected in the slide grooves, and elastic supporting parts are provided between the positioning rods and the slide grooves, and an electromagnet for adsorbing the positioning rods is provided in the cavities.

[0020] In this solution, when the lifting plate needs to move toward the middle partition wall, the electromagnet is energized to attract the positioning rod, the positioning rod is separated from the positioning hole, and then the hydraulic pushing structure is used to push the lifting plate toward the middle partition wall; during the movement of the lifting plate, the support rod is deflected relative to the support and pushes the support to move adaptively in the connecting groove; when the lifting plate is in contact with the middle partition wall, the electromagnet is deenergized, and the positioning rod is inserted into the positioning hole under the action of the elastic support member, and the support and the support rod are used to apply a supporting force to the lifting plate, thereby improving the stability of the lifting plate, and thereby improving the stability of clamping and limiting the middle partition wall.

[0021] Furthermore, clamping rods are vertically arranged at both ends of the bottom of the connecting seat, and the end of the clamping rod is horizontally and vertically fixed with an adjustment shaft facing the middle partition wall, and a plurality of top support rods are hinged on the circumference of the end of the adjusting shaft, and the ends of the top support rods are hinged with clamping plates; a coaxial adjustment block is threadedly connected to the adjusting shaft, and an annular block is coaxially rotatably connected to the outer wall of the adjustment block, and a plurality of adjustment rods are hinged on the circumference of the annular block, and the end of the adjusting rod is hinged to the corresponding side wall of the top support rod.

[0022] Before cutting the middle partition wall, the clamping rod is facing the remaining middle partition wall area being dismantled, and then the adjusting block is rotated forward. The adjusting block drives the annular block to move toward the middle partition wall. The annular block drives the adjusting rod to drive the top support rod to deflect toward the middle partition wall until the clamping plate at the end of the top support rod is against the remaining middle partition walls, thereby providing a certain supporting force for the uncut middle partition wall to prevent the middle partition wall from overturning during the cutting process.

[0023] Further, the connecting structure includes a seat body, a spherical cavity is provided inside the seat body, a deflection ball is arranged in the spherical cavity, a through hole is provided on the deflection ball to accommodate a support rod, a card and a block matching the through hole are threadedly connected on the support rod, and the card and the block are detachably connected to the deflection ball; a rod body is hinged on the circumference of the seat body, and a locking block is slidably sleeved on the rod body; a circular groove corresponding to the support rod is provided on the lifting plate, and a coaxial annular mounting groove is provided on the inner wall of the circular groove, and both ends of the locking block are rotatably connected with a rotating shaft, and the rotating shaft is fixedly connected to the side wall of the mounting groove; a locking pin that limits the sliding of the locking block is detachably connected to the locking block.

[0024] Before the lifting plate moves toward the middle partition wall, remove the locking pin, and use the rod body and the locking block to enable the seat body to move in any direction in the vertical plane; then move the lifting plate and the seat body during the movement to ensure that the end of the support rod passes through the through hole on the deflection ball; when the lifting plate fits the middle partition wall, install the card and block at the end of the support rod and connect and fix the card and block to the deflection ball, and reset the locking pin to prevent the support rod from loosening. In this solution, the connection structure can be adjusted arbitrarily to avoid the installation hole from tilting, which will cause the support rod to be unable to connect with the lifting plate and the middle partition wall to be unable to be stably lifted.

[0025] Furthermore, an oblique support rod is arranged between the bottom of the connecting seat and the clamping rod.

[0026] Furthermore, the movable seat is provided with an inclined support plate which abuts against the lifting plate.

[0027] Other advantages, objectives and features of the present invention will be described in the following description and will be apparent to those skilled in the art to some extent, or those skilled in the art may be taught from the practice of the present invention. The objectives and other advantages of the present invention may be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to make the purpose, technical solution and beneficial effects of the present invention clearer, the present invention provides the following drawings for illustration:

[0029] Figure 1 It is a structural schematic diagram of an embodiment of the present invention;

[0030] Figure 2 It is a structural schematic diagram of a dismantling device in an embodiment of the present invention;

[0031] Figure 3 for Figure 2 The enlarged schematic diagram of point A in the middle;

[0032] Figure 4 for Figure 2 The enlarged schematic diagram of point B in the middle;

[0033] Figure 5 It is a structural schematic diagram of a support structure in an embodiment of the present invention;

[0034] Figure 6 It is a longitudinal cross-sectional view of the support in the embodiment of the present invention.

[0035] The markings in the accompanying drawings are as follows: middle partition wall 1, top plate 2, base 3, connecting plate 4, connecting seat 5, roller 6, truss 7, mounting frame 8, slide rail 9, sliding seat 10, mobile seat 11, hydraulic pushing structure 12, lifting plate 13, lifting frame 14, traction equipment 15, support rod 16, two-way push rod 17, support rod 18, support 19, connecting groove 20, electromagnet 21, positioning rod 22, elastic support 23, clamping rod 24, adjusting shaft 25, top support rod 26, clamping plate 27, adjusting block 28, annular block 29, adjusting rod 30, seat body 31, deflection ball 32, card and block 33, rod body 34, locking block 35, rotating shaft 36, diagonal support rod 37, diagonal support plate 38. DETAILED DESCRIPTION

[0036] like Figures 1 to 6 As shown:

[0037] A method for quickly dismantling partition walls in a foundation pit comprises the following steps:

[0038] Step 1), dividing the middle partition wall 1: dividing the middle partition wall 1 to be removed into several areas, and the width of each area is smaller than the width of the lifting plate 13; punching a group of mounting holes on the middle partition wall 1 of each area, and installing support rods 16 in the mounting holes;

[0039] Step 2), install the middle partition wall removal device: open a through groove on the top plate 2 along the length direction of the middle partition wall 1, and lift the removal device into the through groove; keep the groove facing the top plate 2, control the two-way push rod 17 to extend to push the connecting seat 5 toward the top plate 2 until the base 3 and the top plate 2 are against each other; adjust the height of the roller 6 to make the roller 6 contact with the top plate 2;

[0040] Step 3), cutting operation: use the traction device 15 to lower the lifting plate 13 to the connection structure and face the support rod 16 on the middle partition wall 1 to be cut; energize the electromagnet 21 to make it absorb the positioning rod 22, remove the locking pin, and then start the hydraulic pushing structure 12 to push the moving seat 11 and the lifting plate 13 toward the middle partition wall 1, so that the lifting plate 13 fits the middle partition wall 1. In this process, the seat body 31 is moved to ensure that the end of the support rod 16 passes through the deflection ball 32; install the card and block 33 at the end of the support rod 16 and connect and fix the card and block 33 with the deflection ball 32, and reset the locking pin at the same time, and turn off the power of the electromagnet 21;

[0041] Then, the adjusting block 28 is rotated forward, and the adjusting block 28 drives the annular block 29 to move toward the middle partition wall 1, and the annular block 29 drives the adjusting rod 30 to drive the top support rod 26 to deflect toward the middle partition wall 1, until the clamping plate 27 at the end of the top support rod 26 abuts against the remaining middle partition wall 1;

[0042] Then use a chain saw to cut the middle partition wall 1 to be cut;

[0043] Step 4), conveying operation: Use the traction device 15 to lift the lifting plate 13 and the cut middle partition wall 1 upward until the bottom of the middle partition wall 1 is higher than the base 3; at this time, the sliding seat 10 is driven by the power device to move horizontally, thereby driving the middle partition wall 1 to move horizontally until the middle partition wall 1 extends out of the mounting frame 8, and then the middle partition wall 1 is lowered by the traction device 15, and the support rod 16 is recovered;

[0044] Remove the card and block 33 and the locking pin, and energize the electromagnet 21, and then drive the lifting plate 13 to separate from the middle partition through the hydraulic pushing structure 12 until the support rod 16 is separated from the connection structure; then use the traction device 15 to reset the lifting plate 13, and drive the sliding seat 10 to move horizontally and reset through the hydraulic pushing structure 12;

[0045] 5) Repeat the operation: Repeat steps 3) and 4) to remove the middle partition wall 1 from top to bottom; when the middle partition wall 1 in the same vertical column is removed, the adjusting block 28 is rotated in the opposite direction to retract the clamping plate 27, and then the device is moved to the top of the middle partition wall 1 in the next vertical column by the roller 6 to continue the removal;

[0046] 6) Device recovery: After the dismantling is completed, use the lifting equipment to apply traction to the dismantling device, and then control the two-way push rod 17 to retract until the base 3 is separated from the top plate 2, and then use the lifting equipment to recover the dismantling device.

[0047] The middle partition wall removal device comprises a middle partition wall 1 and a top plate 2, wherein the middle partition wall 1 is provided with a plurality of mounting holes, the top plate 2 is provided with a through groove along the length direction of the middle partition wall 1, a base 3 is provided above the through groove, connecting plates arranged downwardly tilted are hinged on both sides of the base 3, and connecting seats 5 extending into the through groove are hinged at the ends of the connecting plates, a groove for accommodating the top plate 2 is provided on the side wall of the connecting seat 5, and rollers 6 which fit the top plate 2 are provided on the upper and lower walls of the groove, and the height of the rollers 6 is adjustable; two horizontal and perpendicular slide rails 9 are provided on the base 3, a sliding seat 10 is slidably connected to the slide rail 9, a mounting frame 8 is connected to the sliding seat 10 obliquely above the sliding seat 10 through a truss 7, and a mounting frame 8 is provided on the sliding seat 10 A power device is provided to drive the movement thereof; a working groove located between the slide rails 9 is provided on the base 3 and the sliding seat 10; two symmetrically arranged moving seats 11 are slidably connected with respect to the working groove on the mounting frame 8; a hydraulic pushing structure 12 connected with the moving seats 11 is provided on the mounting frame 8; lifting plates 13 are vertically slidably provided at the opposite ends of adjacent moving seats 11; a lifting frame 14 is provided on the moving seat 11; a traction device 15 for driving the lifting plate 13 is provided on the lifting frame 14; support rods 16 are provided in the mounting holes; and connecting structures detachably connected with the support rods 16 are provided on the opposite end surfaces of adjacent lifting plates 13; and horizontally arranged bidirectional push rods 17 are hinged between the ends of adjacent connecting plates.

[0048] In this solution, the partition wall 1 to be removed is divided into several areas, and the width of each area is smaller than the width of the lifting plate 13; a group of mounting holes are punched on the partition wall 1 in each area, and support rods 16 are installed in the mounting holes; a through groove is opened on the top plate 2 along the length direction of the partition wall 1, and the removal device is hoisted into the through groove; the groove is kept facing the top plate 2, and the two-way push rod 17 is controlled to extend to push the connecting seat 5 toward the top plate 2 until the base 3 is against the top plate 2; the height of the roller 6 is adjusted so that the roller 6 and the top plate 2 are in contact with each other. The lifting plate 13 is in contact with the plate 2; the traction device 15 is used to lower the lifting plate 13 to the connection structure and face the support rod 16 on the middle partition wall 1 to be cut, and then the hydraulic pushing structure 12 is started to push the moving seat 11 and other structures to drive the lifting plate 13 to move toward the middle partition wall 1, so that the lifting plate 13 is in contact with the middle partition wall 1, and the support rod 16 is connected to the connection structure; after the middle partition wall 1 is cut, the traction device 15 is used to lift the cut middle partition wall 1 upward, and then the middle partition wall 1 is horizontally transported to the conveying equipment on the side by the power device.

[0049] In this solution, an inclined connecting plate is used to convert part of the gravity of the middle partition wall 1 during the installation and hoisting into a lateral force to prevent the top plate 2 from breaking due to excessive weight; at the same time, the demolition device uses the lifting plate 13 to support and limit the middle partition wall 1 to prevent tipping or shaking; in addition, there is no need to use additional equipment to hang the middle partition wall 1, thereby improving construction efficiency.

[0050] In this embodiment, a plurality of supporting structures are provided on the upper portions of the facing end surfaces of adjacent lifting plates 13, and the supporting structures include a plurality of inclined support rods 18 that are butted end to end, and a support 19 is provided at the abutting positions of adjacent support rods 18, and the ends of the support rods 18 are hinged to the corresponding supports 19; a plurality of vertically arranged connecting grooves 20 are provided on the upper portions of the facing end surfaces of adjacent lifting plates 13, and a plurality of positioning holes are provided on both sides of the connecting grooves 20; the supports 19 are slidably connected to the adjacent connecting grooves 20, and a cavity is provided inside the supports 19, and slide grooves are provided on both sides of the cavity, and a positioning rod 22 that cooperates with the positioning hole is slidably connected in the slide groove, and an elastic support member 23 is provided between the positioning rod 22 and the slide groove, and an electromagnet 21 for adsorbing the positioning rod 22 is provided in the cavity.

[0051] In this solution, when the lifting plate 13 needs to move toward the middle partition wall 1, the electromagnet 21 is energized to adsorb the positioning rod 22, the positioning rod 22 is separated from the positioning hole, and then the hydraulic pushing structure 12 is used to push the lifting plate 13 toward the middle partition wall 1; during the movement of the lifting plate 13, the support rod 18 is deflected relative to the support 19 and pushes the support 19 to move adaptively in the connecting groove 20; when the lifting plate 13 is in contact with the middle partition wall 1, the electromagnet 21 is deenergized, and the positioning rod 22 is inserted into the positioning hole under the action of the elastic support member 23, and the support 19 and the support rod 18 are used to apply a supporting force to the lifting plate 13, thereby improving the stability of the lifting plate 13, and thereby improving the stability of clamping and limiting the middle partition wall 1.

[0052] In this embodiment, clamping rods 24 are vertically arranged at both ends of the bottom of the connecting seat 5, and an adjustment shaft 25 facing the middle partition wall 1 is horizontally and vertically fixed at the end of the clamping rod 24. A plurality of top support rods 26 are hinged around the end of the adjusting shaft 25, and a clamping plate 27 is hinged at the end of the top support rod 26; a coaxial adjustment block 28 is threadedly connected to the adjusting shaft 25, and an annular block 29 is coaxially rotatably connected to the outer wall of the adjusting block 28, and a plurality of adjustment rods 30 are hinged around the annular block 29, and the ends of the adjusting rods 30 are hinged to the side walls of the corresponding top support rods 26.

[0053] Before cutting the middle partition wall 1, the clamping rod 24 is facing the remaining area of ​​the middle partition wall 1 being dismantled, and then the adjusting block 28 is rotated forward, the adjusting block 28 drives the annular block 29 to move toward the middle partition wall 1, and the annular block 29 drives the adjusting rod 30 to drive the top support rod 26 to deflect toward the middle partition wall 1 until the clamping plate 27 at the end of the top support rod 26 abuts against the remaining middle partition walls 1, thereby providing a certain supporting force for the uncut middle partition wall 1 to prevent the middle partition wall 1 from overturning during the cutting process.

[0054] In this embodiment, the connecting structure includes a seat body 31, a spherical cavity is provided inside the seat body 31, a deflection ball 32 is arranged in the spherical cavity, a through hole is provided on the deflection ball 32 to accommodate the support rod 16, and a card and a block 33 cooperating with the through hole are threadedly connected on the support rod 16, and the card and the block 33 are detachably connected to the deflection ball 32; a rod body is hinged on the circumferential side of the seat body 31, and a locking block 35 is slidably sleeved on the rod body; a circular groove corresponding to the support rod 16 is provided on the lifting plate 13, and a coaxial annular mounting groove is provided on the inner wall of the circular groove, and both ends of the locking block 35 are rotatably connected with a rotating shaft 36, and the rotating shaft 36 is fixedly connected to the side wall of the mounting groove; a locking pin that limits the sliding of the locking block 35 is detachably connected to the locking block 35.

[0055] Before the lifting plate 13 moves toward the middle partition wall 1, remove the locking pin, and use the rod body 34 and the locking block 35 to make the seat body 31 move in any direction in the vertical plane; then move the lifting plate 13, and move the seat body 31 during the movement, to ensure that the end of the support rod 16 passes through the through hole on the deflection ball 32; when the lifting plate 13 is in contact with the middle partition wall 1, install the card and block 33 at the end of the support rod 16 and connect and fix the card and block 33 with the deflection ball 32, and reset the locking pin at the same time to prevent the support rod 16 from loosening. In this solution, the connection structure can be adjusted arbitrarily to avoid the installation hole from being tilted, which causes the support rod 16 to be unable to connect with the lifting plate 13 and the middle partition wall 1 to be unable to be stably lifted.

[0056] In this embodiment, an oblique support rod 37 is provided between the bottom of the connecting seat 5 and the clamping rod 24 to enhance the strength of the clamping rod 24 and prevent the clamping rod 24 from breaking.

[0057] In this embodiment, a diagonal support plate 38 is disposed on the movable seat 11 to abut against the lifting plate 13 .

[0058] The diagonal support plate 38 is used to apply more supporting force to the lifting plate 13 , so as to improve the stability of the lifting plate 13 in clamping and limiting the central partition wall 1 .

[0059] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the present invention.

Claims

1. A method for quickly dismantling partition walls in a foundation pit, characterized in that: The steps include: Step 1), dividing the middle partition wall: dividing the middle partition wall to be demolished into several areas, and the width of each area is smaller than the width of the lifting plate; punching a group of mounting holes on the middle partition wall of each area, and installing support rods in the mounting holes; Step 2), install the middle partition wall removal device: the middle partition wall removal device includes a middle partition wall and a top plate, the middle partition wall is provided with a plurality of installation holes, the top plate is provided with a through slot along the length direction of the middle partition wall, a base is provided above the through slot, both sides of the base are hinged with connecting plates arranged to be inclined downward, the ends of the connecting plates are hinged with connecting seats extending into the through slot, a groove for accommodating the top plate is provided on the side wall of the connecting seat, the upper and lower walls of the groove are provided with rollers that fit the top plate, and the height of the rollers is adjustable; two horizontal and perpendicular slide rails are provided on the base, a sliding seat is slidably connected to the slide rails, a mounting frame is connected to the sliding seat obliquely above the sliding seat through a truss, and a power device for driving the sliding seat to move is provided on the sliding seat; the bottom The seat and the sliding seat are provided with a working groove located between the slide rails, and the mounting frame has two symmetrically arranged moving seats slidably connected with the working groove, and the mounting frames are provided with hydraulic pushing structures connected with the moving seats, and the opposite ends of adjacent moving seats are provided with lifting plates for vertical sliding, and the moving seat is provided with a lifting frame, and the lifting frame is provided with a traction device for driving the lifting plate; support rods are provided in the mounting holes, and the opposite end surfaces of adjacent lifting plates are provided with connecting structures detachably connected to the support rods; the ends of adjacent connecting plates are hinged with horizontally arranged two-way push rods; the upper parts of the opposite end surfaces of adjacent lifting plates are provided with a plurality of supporting structures, and the supporting structures include a plurality of inclined support rods that butt against each other end to end, and adjacent support rods are provided at the butt joints. There is a support, and the end of the support rod is hinged with the corresponding support; the upper parts of the facing end surfaces of adjacent lifting plates are provided with a plurality of vertically arranged connecting grooves, and a plurality of positioning holes are provided on both sides of the connecting grooves; the support is slidably connected with the adjacent connecting grooves, and a cavity is provided inside the support, and slide grooves are provided on both sides of the cavity, and positioning rods matching the positioning holes are slidably connected in the slide grooves, and elastic support members are provided between the positioning rods and the slide grooves, and electromagnets for adsorbing the positioning rods are provided in the cavities; clamping rods are vertically provided at both ends of the bottom of the connecting seat, and an adjusting shaft facing the middle partition wall is horizontally and vertically fixed at the end of the clamping rod, and a plurality of top support rods are hinged on the peripheral side of the end of the adjusting shaft, and the ends of the top support rods are hinged with clamping plates; the threaded connection on the adjusting shaft An adjusting block connected to a coaxial line, an annular block is coaxially rotatably connected to the outer wall of the adjusting block, a plurality of adjusting rods are hingedly connected to the circumferential side of the annular block, and the end of the adjusting rod is hingedly connected to the side wall of the corresponding top support rod; the connecting structure includes a seat body, a spherical cavity is opened inside the seat body, a deflection ball is arranged in the spherical cavity, a through hole for accommodating a support rod is opened on the deflection ball, a card and a block matching the through hole are threadedly connected on the support rod, and the card and the block are detachably connected to the deflection ball; a rod body is hingedly connected to the circumferential side of the seat body, and a locking block is slidably sleeved on the rod body; a circular groove corresponding to the support rod is opened on the lifting plate, and a coaxial annular mounting groove is opened on the inner wall of the circular groove, and both ends of the locking block are rotatably connected with a rotating shaft, and the rotating shaft is fixedly connected to the side wall of the mounting groove;The locking block is detachably connected to a locking pin for limiting the sliding movement of the locking block; A through groove is opened on the top plate along the length direction of the middle partition wall, and the demolition device is hoisted into the through groove; the groove is kept facing the top plate, and the two-way push rod is controlled to extend to push the connecting seat toward the top plate until the base and the top plate are against each other; the height of the roller is adjusted to make the roller contact with the top plate; Step 3), cutting operation: use the traction equipment to lower the lifting plate to the connection structure and face the support rod on the middle partition wall to be cut; energize the electromagnet to make it absorb the positioning rod, remove the locking pin, and then start the hydraulic push structure to push the moving seat and the lifting plate toward the middle partition wall, so that the lifting plate fits the middle partition wall. In this process, move the seat body to ensure that the end of the support rod passes through the deflection ball; install the card and block at the end of the support rod and connect and fix the card and block with the deflection ball, reset the locking pin at the same time, and turn off the power of the electromagnet; Then, the adjusting block is rotated forward, and the adjusting block drives the annular block to move toward the middle partition wall, and the annular block drives the adjusting rod to drive the top support rod to deflect toward the middle partition wall until the clamping plate at the end of the top support rod abuts against the remaining middle partition wall; Then use a chain saw to cut the middle partition wall to be cut; Step 4) Conveying operation: Use the traction equipment to lift the lifting plate and the cut middle partition wall upward until the bottom of the middle partition wall is higher than the base; at this time, the sliding seat is driven horizontally by the power device, thereby driving the middle partition wall to move horizontally until the middle partition wall extends out of the mounting frame, and then the middle partition wall is lowered by the traction equipment, and the support rod is recovered; Remove the card and block and the locking pin, and energize the electromagnet, and then drive the lifting plate to separate from the middle partition through the hydraulic pushing structure until the support rod is separated from the connecting structure; then use the traction equipment to reset the lifting plate, and drive the sliding seat to move horizontally and reset through the hydraulic pushing structure; 5) Repeat the operation: Repeat steps 3) and 4) to remove the middle partition wall from top to bottom; when the middle partition wall in the same vertical column is removed, rotate the adjustment block in the opposite direction to retract the clamping plate, and then move the device to the top of the middle partition wall in the next vertical column by the roller and continue to remove it; 6) Device recovery: After the dismantling is completed, use the lifting equipment to apply traction to the dismantling device, and then control the two-way push rod to retract until the base is separated from the top plate, and then use the lifting equipment to recover the dismantling device.

2. A method for rapid removal of partition walls in a foundation pit according to claim 1, characterized in that: An oblique support rod is arranged between the bottom of the connecting seat and the clamping rod.

3. A method for rapid removal of partition walls in a foundation pit according to claim 2, characterized in that: The movable seat is provided with an oblique support plate which abuts against the lifting plate.

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