Prefabricated block mounting and fixing device for prefabricated retaining wall

Abstract

The utility model relates to a prefabricated block mounting and fixing device for a prefabricated retaining wall, which comprises a vertically arranged steel pipe, four buckles are welded on the outer wall of the steel pipe, each buckle comprises a transverse rib and a vertical rib, one end of each transverse rib is welded with the upper end of the corresponding vertical rib, the other end of each transverse rib is welded with the outer wall of the steel pipe, and the transverse ribs are perpendicular to the axis of the steel pipe. The vertical ribs are parallel to the axis of the steel pipe, the length of the vertical ribs below the steel pipe is larger than 1.5 times of the height of one prefabricated block, and the distance between the vertical rib of each buckle and the vertical rib of the adjacent buckle is equal to the width of the hollow groove of one prefabricated block. And the distance between the vertical rib and the vertical rib of the other adjacent buckle is equal to the sum of the wall thicknesses of the left side and the right side of one precast block. When the prefabricated blocks are installed, each prefabricated block can be temporarily fixed with the lower prefabricated block and the adjacent prefabricated blocks on the same layer, the prefabricated blocks are prevented from falling off due to collision or other accidental factors, and therefore construction safety is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of road construction, relates to the installation and construction of a prefabricated assembled retaining wall, and specifically relates to a prefabricated block installation and fixing device for a prefabricated assembled retaining wall. Background Art

[0002] Retaining walls are structures that support the fill of embankments or the soil of cutting slopes to prevent the collapse of embankments or slopes. Retaining walls are usually constructed with cast-in-place concrete, which requires processes such as tying steel bars, supporting formwork, setting up scaffolding, and pouring concrete. A large number of construction machinery are required on site, which occupies a large area and has low construction efficiency. Therefore, prefabricated assembly technology is gradually being used in retaining wall construction.

[0003] Patent CN220058077U discloses a prefabricated retaining wall, which is assembled by multiple concrete prefabricated blocks, each of which is a rectangular parallelepiped structure; in order to reduce the weight of the prefabricated blocks and save the amount of concrete, a hollow groove with a rectangular cross-section is vertically provided in the middle of each prefabricated block; in order to achieve the connection between the prefabricated blocks, vertical and horizontal steel bar reserved holes are provided on the side wall of each prefabricated block. During the construction of the retaining wall, the prefabricated blocks are installed in layers, and after each layer of prefabricated blocks is hoisted in place, vertical bars are inserted into the vertical steel bar reserved holes of each prefabricated block, and connected with the vertical steel bars of the lower prefabricated blocks, and horizontal bars are inserted into the horizontal steel bar reserved holes of each prefabricated block, and the prefabricated blocks of the same layer are connected into one, and finally grouting and anchoring are performed in the steel bar reserved holes; after one layer of prefabricated blocks is installed and fixed, the next layer is installed until the designed height of the retaining wall is reached. In the above structure, all the horizontal and vertical steel bars inserted after prefabricating blocks are connected into a mesh structure, which is equivalent to the steel skeleton of the cast-in-place structure. Therefore, the structural strength of the entire retaining wall is not lower than that of the cast-in-place structure, and the amount of concrete pouring on site can be greatly reduced, thereby increasing the construction speed. However, the above retaining wall has the following problems during construction:

[0004] Each layer of prefabricated blocks is hoisted one by one by a crane. During the hoisting process, they may sometimes collide with adjacent prefabricated blocks on the same layer. Since the rear-inserted steel bars of the prefabricated blocks on the same layer have not been installed at this time, the prefabricated blocks may fall from above. As the construction height increases, this danger becomes greater and greater, posing a high safety hazard. Summary of the invention

[0005] The utility model aims to solve the above problems and provide a prefabricated assembly retaining wall prefabricated block installation and fixing device to prevent the prefabricated blocks from falling from above during the installation process and ensure construction safety.

[0006] The technical solution of the utility model is as follows:

[0007] A prefabricated retaining wall prefabricated block installation and fixing device, the prefabricated retaining wall prefabricated block is a rectangular parallelepiped structure, each prefabricated block is provided with a rectangular cross-section hollow groove running through from top to bottom in the middle, characterized in that: the prefabricated block installation and fixing device comprises a vertically arranged steel pipe, the outer wall of the steel pipe is welded with 4 clips, each clip is an L-shaped steel bar, including a transverse rib and a vertical rib, one end of the transverse rib is welded to the upper end of the vertical rib, the other end of the transverse rib is welded to the outer wall of the steel pipe, and the transverse rib is welded to the upper end of the vertical rib. The axis of the steel pipe is vertical, the vertical ribs are parallel to the axis of the steel pipe, the lower ends of the vertical ribs extend to the bottom of the steel pipe, and the length of the vertical ribs below the steel pipe is greater than 1.5 times the height of a prefabricated block; the four clips are distributed circumferentially on the outer wall of the steel pipe, the spacing between the vertical ribs of each clip and the vertical ribs of an adjacent clip is equal to the width of the hollow groove in the middle of the prefabricated block, and the spacing between the vertical ribs of each clip and the vertical ribs of another adjacent clip is equal to the sum of the wall thicknesses on the left and right sides of a prefabricated block.

[0008] During the construction of the prefabricated retaining wall, the utility model can temporarily fix each prefabricated block with the prefabricated block below and the adjacent prefabricated blocks on the same layer after each prefabricated block is hoisted into place, so as to prevent it from falling due to collision or other unexpected factors, thereby ensuring construction safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 The figure shows a schematic diagram of the structure of a prefabricated assembled retaining wall prefabricated block;

[0010] Figure 2 It is a three-dimensional structural schematic diagram of the utility model;

[0011] Figure 3 It is a three-dimensional diagram of the use state of the utility model;

[0012] Figure 4 It is a vertical view of the utility model in use state;

[0013] Figure 5 It is a side view of the utility model in use state. DETAILED DESCRIPTION

[0014] like Figure 1 As shown, the prefabricated retaining wall prefabricated block 3 is a rectangular parallelepiped structure, in the middle of which a rectangular cross-section hollow groove 31 is provided, and the side walls are provided with rear insertion vertical main reinforcement through holes 32 and transverse main reinforcement through holes 33;

[0015] like Figure 2As shown, the utility model includes a vertically arranged steel pipe 1, and four clips 2 are welded to the outer wall of the steel pipe, each clip 2 is an L-shaped steel bar, including a transverse rib 21 and a vertical rib 22, one end of the transverse rib 21 is welded to the upper end of the vertical rib 22, and the other end of the transverse rib 21 is welded to the outer wall of the steel pipe 1, the transverse rib is perpendicular to the axis of the steel pipe, the vertical rib is parallel to the axis of the steel pipe, the lower end of the vertical rib 22 extends to the bottom of the steel pipe 1, and the length of the vertical rib 22 below the steel pipe 1 is greater than 1.5 times the height of a prefabricated block 3; the four clips 2 are circumferentially distributed on the outer wall of the steel pipe 1, the spacing between the vertical ribs of each clip 2 and the vertical ribs of a clip 2 adjacent to it in the circumferential direction is equal to the width of the hollow groove 31 in the middle of the prefabricated block, and the spacing between the vertical ribs of each clip and the vertical ribs of another clip adjacent to it in the circumferential direction is equal to the sum of the wall thicknesses on the left and right sides of a prefabricated block 3.

[0016] like Figure 3 , Figure 4 , Figure 5 As shown, the prefabricated assembled retaining wall is assembled from a plurality of prefabricated blocks 3. According to the height of the retaining wall, the plurality of prefabricated blocks are divided into a plurality of layers. According to the length of the retaining wall, each layer includes a plurality of prefabricated blocks. During the construction of the retaining wall, the prefabricated blocks are installed in layers, and the adjacent prefabricated blocks in the upper and lower layers are connected by the rear-inserted vertical main reinforcement 4 through the rear-inserted vertical main reinforcement through holes and the transverse main reinforcement through holes on the prefabricated blocks, and the adjacent prefabricated blocks in the same layer are connected by the rear-inserted transverse main reinforcement 5.

[0017] After each prefabricated block is hoisted into place and before the steel bars are inserted later, in order to prevent the prefabricated block from falling due to collision or improper operation, a fixture of the utility model is temporarily installed between every two prefabricated blocks 3 that are butted against each other on the left and right sides, and the top surfaces of the left and right butted ends of the two prefabricated blocks supported by the lower end of the steel pipe 1 of the fixture are inserted, and the vertical ribs 22 of the two clips 2 of the fixture are inserted into the hollow groove 31 of one prefabricated block, and the vertical ribs 22 of the other two clips 2 are inserted into the hollow groove 31 of the other prefabricated block; since the spacing between the vertical ribs of the two clips inserted into the hollow groove of each prefabricated block is equal to the width of the hollow groove, the vertical ribs of each clip are close to the inner corner of the hollow groove 31, and since the length of the vertical ribs 22 is greater than the height of the prefabricated block 3, the lower end of the clip vertical ribs 22 will be inserted into the hollow groove of the prefabricated block 3 below. In the above structure, the fixing device can temporarily connect and fix each prefabricated block with the adjacent prefabricated blocks on the same layer, and also temporarily connect and fix each prefabricated block with the prefabricated blocks on the lower layer, thereby effectively preventing the prefabricated blocks from falling.

[0018] After the installation of the rear-inserted vertical and transverse reinforcements of one layer of prefabricated blocks is completed, remove the temporary fixing device and continue to install the next layer of prefabricated blocks in the same way until the retaining wall construction is completed.

Claims

1. A prefabricated retaining wall prefabricated block installation and fixing device, wherein the prefabricated retaining wall prefabricated block is a rectangular parallelepiped structure, and each prefabricated block is provided with a rectangular cross-section hollow groove running through from top to bottom in the middle, characterized in that: The prefabricated block installation and fixing device includes a vertically arranged steel pipe, and four clips are welded on the outer wall of the steel pipe, each clip is an L-shaped steel bar, including a transverse rib and a vertical rib, one end of the transverse rib is welded to the upper end of the vertical rib, and the other end of the transverse rib is welded to the outer wall of the steel pipe, the transverse rib is perpendicular to the axis of the steel pipe, the vertical rib is parallel to the axis of the steel pipe, the lower end of the vertical rib extends to the bottom of the steel pipe, and the length of the vertical rib under the steel pipe is greater than 1.5 times the height of a prefabricated block; the four clips are distributed circumferentially on the outer wall of the steel pipe, the spacing between the vertical ribs of each clip and the vertical ribs of an adjacent clip is equal to the width of the hollow groove in the middle of the prefabricated block, and the spacing between the vertical ribs of each clip and the vertical ribs of another adjacent clip is equal to the sum of the wall thicknesses on the left and right sides of a prefabricated block.

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