Jacking device of underground diaphragm wall grooving surface

Abstract

The utility model relates to a shoring device for a diaphragm wall grooving surface, which comprises a floor stand and a supporting unit, the floor stand is used for being located on a foundation at the top of the diaphragm wall grooving surface, and the floor stand comprises a stand body and height adjusting sizing blocks located at four corners of the bottom of the stand body; the supporting unit is located on the floor stand, and the supporting unit and the floor stand form a moving pair in the X direction. Each supporting unit comprises a vertical supporting frame and 2N supporting palm plates, N is larger than or equal to 1, and the 2N supporting palm plates are averagely divided into two sets and face the underground diaphragm wall groove faces on the two sides respectively. The supporting palm plate is fixedly connected with the supporting rod, the supporting rod and the vertical supporting frame form a moving pair in the X direction, the supporting rod and the wedge-shaped pushing block are in sliding connection in the inclined linear direction L or L ', the wedge-shaped pushing block and the vertical supporting frame form a moving pair in the Y direction, the wedge-shaped pushing block is connected with a piston rod of the hydraulic cylinder, and a cylinder body of the hydraulic cylinder is fixedly connected with the vertical supporting frame. The hydraulic cylinder is used for pushing the wedge-shaped push block to move in the Y direction. According to the technical scheme, the reliability is good.

Description

TECHNICAL FIELD

[0001] The utility model belongs to underground continuous wall technical field, and specifically relates to a top bracing device of ground continuous wall grooving surface. BACKGROUND

[0002] The utility model patent with publication number CN219033243U discloses a stable auxiliary device for underground continuous wall grooving, which is used for placing the device into the groove after the grooving operation of the underground continuous wall is completed in stages, assisting and supporting the vertical surface of the groove, thereby controlling the deformation of the soil wall and avoiding collapse.

[0003] The prior art has the following defects:

[0004] (1) The installation rod is inserted into the soil at the bottom of the groove, which is difficult to ensure the verticality of the installation rod, and the verticality of the installation rod is difficult to adjust after insertion, which indirectly leads to the difficulty of the support panel in fully contacting the soil wall.

[0005] (2) The support force on the soil wall relies entirely on the hydraulic telescopic rod, which puts high requirements on the hydraulic telescopic rod and related hydraulic components, and any problem of the hydraulic components may lead to the failure of the entire support, and the reliability is poor. UTILITY MODEL CONTENTS

[0006] The utility model solves the technical problems of the prior art and provides a top bracing device for ground continuous wall grooving surface.

[0007] To solve the above technical problems, the technical scheme of the utility model is as follows:

[0008] A top bracing device for ground continuous wall grooving surface, including floor stand and support unit, a pair of symmetrical surfaces of the ground continuous wall grooving surface face to face are M surfaces, the direction perpendicular to the M surface is the X direction, and the direction parallel to the M surface and perpendicular to the X direction is the Y direction; the floor stand is used for sitting on the foundation at the top of the ground continuous wall grooving surface and includes a support body and height-adjusting pad irons at the bottom of the four corners of the support body; the support unit sits on the floor stand and forms a moving pair along the X direction with the floor stand; the support unit includes a vertical support frame and 2N support palm plates, N is greater than or equal to 1, the 2N support palm plates are evenly divided into two groups and face the ground continuous wall grooving surfaces on the two sides respectively; the support palm plate is fixedly connected with the support rod, the support rod and the vertical support frame form a moving pair along the X direction, the support rod and the wedge-shaped push block are slidably connected in the inclined straight line direction L or L', the wedge-shaped push block and the vertical support frame form a moving pair along the Y direction, the wedge-shaped push block is connected with the piston rod of the hydraulic cylinder, the cylinder body of the hydraulic cylinder is fixedly connected with the vertical support frame, and the hydraulic cylinder is used for pushing the wedge-shaped push block to move along the Y direction.

[0009] Further, the landing support is provided with a pair of guide rails parallel to each other along the X direction; the support unit further comprises a horizontal support frame fixedly connected with the vertical support frame, and a plurality of rollers are arranged on the horizontal support frame and located on the guide rails.

[0010] Further, a reinforcing rib plate is welded between the support palm plate and the support rod.

[0011] Further, the wedge-shaped push block is connected with the piston rod of the hydraulic cylinder in the following manner: a hinge joint is fixedly connected with the end of the piston rod of the hydraulic cylinder, the hinge joint is hingedly connected with a hinge lug through a pin shaft, and the hinge lug is fixedly connected with the wedge-shaped push block.

[0012] Further, the wedge-shaped push block comprises a guide strip A matched with a guide groove A on a guide plate as a sliding connection guide, the sliding direction is along the Y direction, and the guide plate is fixedly connected with the vertical support frame.

[0013] Further, the inclined end of the wedge-shaped push block comprises a guide groove B and a bearing surface A, the inclined end of the support rod comprises a guide strip B and a bearing surface B, the bearing surface A and the bearing surface B are matched with each other, the guide groove B and the guide strip B are matched as a sliding connection guide, and the sliding direction is the inclined straight line direction L or L'.

[0014] Further, the vertical support frame comprises a bearing rod located on the extension line of the support rod.

[0015] Further, the vertical support frame comprises a guide sleeve in sliding connection with the support rod, and the sliding direction is along the X direction.

[0016] Further, the landing support and the support unit are detachably fixed together through a fixing member and a screw, and the fixing member is used for assisting integral hoisting.

[0017] The utility model discloses the following beneficial effects can be achieved:

[0018] (1) by adjusting the heightening pad iron of landing support bottom, makes landing support present horizontal state, thereby guaranteeing the vertical state of support unit, and the adjustability is better.

[0019] (2) Because the wedge-shaped push block and the support rod are in wedge-shaped butt joint, when the support rod applies force to the wedge-shaped push block through the wedge-shaped surface, the relative position of the wedge-shaped push block and the support rod is self-locked. Therefore, the reaction force of the diaphragm wall groove to the support plate in the X direction is finally transmitted to the vertical support frame through the support rod, the wedge-shaped push block, and the diaphragm wall groove. As can be seen, the bearing performance of the diaphragm wall groove depends on the structure of the vertical support frame, and does not depend on the pressure-bearing performance of the hydraulic cylinder. Therefore, the high-pressure performance of the hydraulic station and the hydraulic components is no longer required, and even if a fault occurs in the hydraulic pipeline during use, the auxiliary support to the diaphragm wall groove can be ensured to be effective, and the reliability is greatly improved. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a perspective view of an embodiment of the utility model.

[0021] Figure 2 is a front view of an embodiment of the utility model.

[0022] Figure 3 is a top view of an embodiment of the utility model.

[0023] Figure 4 is a perspective view of a floor stand in an embodiment of the utility model.

[0024] Figure 5 is a perspective view of a support unit in an embodiment of the utility model.

[0025] Figure 6 is Figure 5 is an enlarged view of part B in the figure.

[0026] Figure 7 is a perspective view of a wedge-shaped push block in an embodiment of the utility model.

[0027] Figure 8 is a perspective view of a support plate, a reinforcing rib plate and a support rod in an embodiment of the utility model.

[0028] Figure 9 is Figure 1 is an enlarged view of part C in the figure.

[0029] Figure 10 is Figure 1 is an enlarged view of part A in the figure.

[0030] Figure 11 is a schematic diagram of an application state of an embodiment of the utility model.

[0031] In the figure: 1 - floor support, 101 - support body, 102 - guide rail, 103 - height adjustment pad iron, 2 - support unit, 201 - horizontal support frame, 202 - roller, 203 - vertical support frame, 2031 - force bearing rod, 2032 - guide sleeve, 204 - hydraulic cylinder, 205 - wedge-shaped push block, 2051 - guide strip A, 2052 - force bearing surface A, 2053 - guide groove B, 206 - support palm plate, 207 - reinforcing rib plate, 208 - support rod, 2081 - force bearing surface B, 2082 - guide strip B, 209 - guide plate, 2091 - guide groove A, 210 - hinge joint, 211 - pin shaft, 212 - hinge lug, 3 - fixing piece. DETAILED DESCRIPTION

[0032] The utility model will be further explained in detail in combination with the drawings and specific embodiments.

[0033] A diaphragm wall trench face jacking device, comprising a floor support 1 and a support unit 2. Figure 11 As shown, the symmetrical plane of the pair of diaphragm wall trench faces facing each other is M plane, the direction perpendicular to M plane is X direction, and the direction parallel to M plane and perpendicular to X direction is Y direction.

[0034] The floor support 1 is used to sit on the foundation at the top of the diaphragm wall trench face, comprising a support body 101, and one height adjustment pad iron 103 is arranged at each corner of the bottom of the support body 101, and a pair of guide rails 102 parallel to each other along the X direction is arranged at the top of the support body 101.

[0035] The support unit 2 comprises an integral horizontal support frame 201, a vertical support frame 203 and 2N support palm plates 206, N≥1 (the value of N can be properly set by the person skilled in the art according to the actual trench depth, and only the case of N=2 is shown in this embodiment), the horizontal support frame 201 and the vertical support frame 203 are arranged in a T shape, a plurality of rollers 202 are arranged on the horizontal support frame 201, the rollers 202 sit on the guide rails 102, and the rollers 202 are guide rollers, which match the guide rails 102 to constitute the linear movement guide of the support unit 2 relative to the floor support 1 along the X direction.

[0036] The 2N support palm plates 206 are evenly divided into two groups, respectively facing the diaphragm wall trench faces on both sides. The support palm plate 206 is welded with the support rod 208, and the reinforcing rib plate 207 is welded between the support palm plate 206 and the support rod 208. The support rod 208 and the vertical support frame 203 constitute a movement pair along the X direction, specifically: the support rod 208 is slidably connected with the guide sleeve 2032, the guide sleeve 2032 is fixed on the vertical support frame 203, and the material of the guide sleeve 2032 can be copper or polytetrafluoroethylene. The support rod 208 is slidably connected with the wedge-shaped push block 205 in an inclined linear direction L or L' (as Figure 11As shown, the wedge-shaped pusher 205 and the vertical support frame 203 form a sliding pair along the Y direction. The wedge-shaped pusher 205 is connected to the piston rod of the hydraulic cylinder 204. The cylinder body of the hydraulic cylinder 204 is fixedly connected to the vertical support frame 203. The hydraulic cylinder 204 is used to push the wedge-shaped pusher 205 to move along the Y direction. The vertical support frame 203 includes a load-bearing rod 2031, which is located on the extension line of the support rod 208.

[0037] The support rod 208 and the wedge-shaped push block 205 are slidably connected along the inclined straight direction L or L' as follows: the inclined end of the wedge-shaped push block 205 includes a guide groove B2053 and a bearing surface A2052, the inclined end of the support rod 208 includes a guide bar B2082 and a bearing surface B2081, the bearing surface A2052 and the bearing surface B2081 are in contact with each other, the guide groove B2053 and the guide bar B2082 are matched as guides for the sliding connection, and the sliding direction is the inclined straight direction L or L'.

[0038] The wedge-shaped push block 205 and the vertical support frame 203 form a moving pair along the Y direction as follows: the wedge-shaped push block 205 includes a guide strip A2051, the guide strip A2051 matches the guide groove A2091 on the guide plate 209 as a guide for sliding connection, the sliding direction is along the Y direction, and the guide plate 209 is fixedly connected to the vertical support frame 203.

[0039] The connection between the wedge-shaped push block 205 and the piston rod of the hydraulic cylinder 204 is as follows: the hinge joint 210 is fixedly connected to the end of the piston rod of the hydraulic cylinder 204, the hinge joint 210 and the hinge lug 212 are hinged through the pin 211, and the hinge lug 212 is fixedly connected to the wedge-shaped push block 205.

[0040] As the piston rod of the hydraulic cylinder 204 extends downward, it drives the wedge-shaped push block 205 to move downward. The wedge-shaped push block 205 pushes against the bearing surface B2081 through the bearing surface A2052, thereby pushing the support rod 208 to move in the X direction, and further pushing the support palm plate 206 closer to the diaphragm wall groove surface until the set pressure of the hydraulic cylinder 204 is reached. At this time, the support palm plate 206 presses against and squeezes the diaphragm wall groove surface. Since the wedge-shaped push block 205 and the support rod 208 are wedge-shaped, when the support rod 208 applies force to the wedge-shaped push block 205 through the wedge-shaped surface, the relative position of the wedge-shaped push block 205 and the support rod 208 is self-locking. Therefore, the reaction force of the diaphragm wall groove surface on the supporting plate 206 in the X direction is ultimately transmitted to the vertical support frame 203 through the supporting rod 208 and the wedge-shaped push block 205. Furthermore, since a load-bearing rod 2031 is fixedly installed on the vertical support frame 203, and the load-bearing rod 2031 is located on the extension line of the supporting rod 208, the load-bearing capacity of the support frame 203 is enhanced. Thus, the load-bearing capacity of the diaphragm wall groove surface depends on the structure of the vertical support frame 203, not on the pressure-bearing capacity of the hydraulic cylinder 204, which is mainly used to push the supporting plate 206 into place.

[0041] In addition, in order to facilitate the auxiliary overall hoisting, the embodiment also provides an L-shaped fixing member 3, as shown in the drawings, which is used to detachably fix the floor support 1 and the support unit 2 together through the fixing member 3 and screws at the opposite corners or four corners of the support unit 2. Figure 10

[0042] During hoisting, the floor support 1 is made to cross the wall slot surface and sit on the foundation on the top of the wall slot surface, and the symmetrical surface of the floor support 1 is adjusted to be parallel to the M surface. After the floor support 1 is placed on the ground, the height of the floor support 1 is adjusted by the auxiliary observation of the level meter, so that the floor support 1 is in a horizontal state, thereby ensuring the vertical state of the support unit 2.​

Claims

1. A top support device for a ground-connected wall forming a groove surface, characterized in that: The system includes a ground support (1) and a support unit (2). The symmetrical plane of a pair of face-to-face diaphragm wall grooves is the M plane, the direction perpendicular to the M plane is the X direction, and the direction parallel to the M plane and perpendicular to the X direction is the Y direction. The ground support (1) is used to sit on the foundation at the top of the diaphragm wall groove and includes a support body (101) and height adjustment pads (103) located at the four corners of the bottom of the support body (101). The support unit (2) is located on the ground support (1) and forms a sliding pair along the X direction with the ground support (1). The support unit (2) includes a vertical support frame (203) and 2N support palm plates (206), where N≥1 and 2N support palm plates are used. The plate (206) is divided into two groups, facing the ground wall grooves on both sides respectively; the support plate (206) is fixedly connected to the support rod (208), the support rod (208) and the vertical support frame (203) form a sliding pair along the X direction, the support rod (208) and the wedge push block (205) are slidably connected in the inclined straight line direction L or L', the wedge push block (205) and the vertical support frame (203) form a sliding pair along the Y direction, the wedge push block (205) is connected to the piston rod of the hydraulic cylinder (204), the cylinder body of the hydraulic cylinder (204) is fixedly connected to the vertical support frame (203), and the hydraulic cylinder (204) is used to push the wedge push block (205) to move along the Y direction.

2. The top support device for the trench surface of the diaphragm wall according to claim 1, characterized in that: The floor support (1) is provided with a pair of guide rails (102) that are parallel to each other along the X direction; the support unit (2) also includes a horizontal support frame (201) that is fixedly connected to the vertical support frame (203), and the horizontal support frame (201) is provided with a number of rollers (202), which sit on the guide rails (102).

3. The top support device for the trench surface of the diaphragm wall according to claim 1, characterized in that: A reinforcing rib (207) is welded between the supporting palm plate (206) and the supporting rod (208).

4. The top support device for the trench surface of the diaphragm wall according to claim 1, characterized in that: The connection between the wedge-shaped push block (205) and the piston rod of the hydraulic cylinder (204) is as follows: the hinge joint (210) is fixedly connected to the end of the piston rod of the hydraulic cylinder (204), the hinge joint (210) and the hinge ear (212) are hinged through the pin (211), and the hinge ear (212) is fixedly connected to the wedge-shaped push block (205).

5. The top support device for the trench surface of the diaphragm wall according to claim 1, characterized in that: The wedge-shaped pusher (205) includes a guide bar A (2051), which matches the guide groove A (2091) on the guide plate (209) as a guide for sliding connection. The sliding direction is along the Y direction. The guide plate (209) is fixedly connected to the vertical support frame (203).

6. The top support device for the trench surface of the diaphragm wall according to claim 1, characterized in that: The inclined end of the wedge-shaped pusher (205) includes a guide groove B (2053) and a bearing surface A (2052). The inclined end of the support rod (208) includes a guide bar B (2082) and a bearing surface B (2081). The bearing surface A (2052) and the bearing surface B (2081) fit together. The guide groove B (2053) and the guide bar B (2082) are matched as guides for sliding connection. The sliding direction is the inclined straight line direction L or L'.

7. The top support device for the trench surface of the diaphragm wall according to claim 1, characterized in that: The vertical support frame (203) includes a load-bearing rod (2031) located on the extension line of the support rod (208).

8. The top support device for the trench surface of the diaphragm wall according to claim 1, characterized in that: The vertical support frame (203) includes a guide sleeve (2032), which is slidably connected to the support rod (208) in the X direction.

9. The top support device for the trench surface of the diaphragm wall according to claim 1, characterized in that: It also includes a fastener (3), which detachably fixes the landing bracket (1) and the support unit (2) together with screws to assist in the overall hoisting.

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