A prefabricated guide wall structural block

Abstract

The utility model discloses an assembly type guide wall structure block, including stake body shell (1), stake body shell (1) inside is equipped with center reinforced concrete block (2), stake body shell (1) is steel sheet, stake body shell (1) outside is equipped with the connecting piece that can be connected with one another, stake body shell (1) made of steel sheet inserts into the earth mass, on one hand can play the reinforcing effect to shallow weak soil, improve the stability of soil layer, on the other hand, the stake structure of steel sheet can form water stop curtain, is favorable to the maintenance of the mud page in the groove when grooving, has the improving effect to the groove wall stability, center reinforced concrete block (2) is the structure of directly bearing equipment load such as groover, and can be flexibly set according to the shape of groove section, be used for arc, linear type and a plurality of shape ground connecting wall, secondly, center reinforced concrete block (2) can also be integrally poured with steel sheet stake structure.

Description

Technical Field

[0001] This utility model belongs to the field of building construction technology. Specifically, this utility model relates to a prefabricated guide wall structure block. Background Technology

[0002] Guide walls are widely used in underground engineering as underground structures to guide the construction of retaining structures (such as diaphragm walls and interlocking piles), improve the stability of shallow soil, and bear the load of equipment.

[0003] A patent specification published on January 18, 2022, with patent number 202120896547.X, discloses a prefabricated guide wall for a concrete underground continuous wall. It includes corner plates and internal supports. A guide channel with an upper opening is formed by symmetrically arranging two corner plates. Multiple corner plates are arranged axially along the guide channel to form the guide wall. The limiting plate at the upper end of the cantilever of the internal support is supported by the horizontal plate of the corner plate, and the two ends of the support plate at the lower end of the cantilever abut against the vertical plate of the corner plate. This invention overcomes the problems of easy hole collapse, discontinuous construction, and low construction efficiency during construction on soft foundations. It features a simple structure, effectively avoids hole collapse during construction on soft foundations, facilitates continuous construction, improves construction efficiency, and is safe and reliable.

[0004] Traditional guide wall structures are cast-in-place reinforced concrete structures, requiring the excavation of long trench-shaped foundation pits before construction. On-site construction is labor-intensive and time-consuming. As temporary structures, they cannot be reused, resulting in significant resource waste. Utility Model Content

[0005] The present invention aims to provide a prefabricated guide wall structure block with high assembly efficiency and reusability.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a prefabricated guide wall structure block, including a pile shell, the pile shell being hexagonal, a central reinforced concrete block being provided on the inner side of the pile shell, the pile shell being made of steel plate, a connecting piece being provided on the outer side of the pile shell that can be interconnected, and a supporting structure for supporting the central reinforced concrete block being provided on the inner side of the pile shell.

[0007] The supporting structure is a support plate set inside the outer shell of the pile body, and the central reinforced concrete block is placed on the support plate.

[0008] A support plate is provided between the support plate and the inner wall of the pile body shell, and the support plate and the support plate are T-shaped.

[0009] The support plates are symmetrically arranged on the inner side of the pile body shell.

[0010] The pile body shell is divided into two identical three-plate sections. The cross-section of the three-plate section is trapezoidal. The sides of the three-plate section are welded together to form the pile body shell. The connector is located on the outer edge of one side of the three-plate section.

[0011] The connector is a U-shaped latch installed on the outer shell of the pile body.

[0012] The outer surface of the central reinforced concrete block is in contact with the inner wall of the pile shell.

[0013] The technical effects of this utility model are as follows: Firstly, the steel sheet piles inserted into the soil reinforce shallow, soft soil, greatly improving its stability. Secondly, the steel sheet pile structure forms a water-stop curtain, which helps maintain the mud level in the trench during trenching, thus improving the stability of the trench wall. The central reinforced concrete block directly bears the load of the trenching machine and other equipment, transferring the vertical load to the steel sheet piles and the soil beside them through the supporting structure. By gradually transferring and distributing the load, insufficient bearing capacity of the upper soil is avoided, achieving the goal of reducing the thickness of the reinforced concrete panel, thereby saving construction materials and costs. Furthermore, it can be flexibly set according to the shape of the trench section, suitable for various shapes of diaphragm walls, such as curved and straight sections. Secondly, the central reinforced concrete block can also be cast integrally with the steel sheet pile structure. The thickness and quantity of the reinforced concrete block are determined according to the equipment load, making it suitable for diaphragm wall structures of different depths, thicknesses, and bearing requirements. Attached Figure Description

[0014] This manual includes the following figures, which illustrate the following:

[0015] Figure 1 This utility model relates to a prefabricated guide wall structure block.

[0016] The markings in the diagram are: 1. Pile shell; 101. Three-piece plate; 2. Central reinforced concrete block; 3. Support plate; 4. Support plate; 5. Locking buckle. Detailed Implementation

[0017] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, in order to help those skilled in the art to have a more complete, accurate and in-depth understanding of the utility model concept and technical solution, and to facilitate its implementation.

[0018] Please see Figure 1A prefabricated guide wall structure includes a pile shell 1, which is hexagonal in shape. A central reinforced concrete block 2 is located on the inner side of the pile shell 1. The pile shell 1 is made of steel plate. Connecting components are provided on the outer side of the pile shell 1, and a support structure supporting the central reinforced concrete block 2 is located on the inner side of the pile shell 1. The steel plate pile shell 1 is inserted into the soil, which on the one hand reinforces the shallow soft soil and improves the stability of the soil layer; on the other hand, the steel plate pile structure can form a water-stop curtain, which is beneficial to the retention of the mud surface in the trench during trenching and improves the stability of the trench wall. The central reinforced concrete block 2... Concrete block 2 is a structure that directly bears the load of equipment such as trenching machines. It transfers the vertical load to the steel sheet piles and the soil on the side of the steel sheet piles through the supporting structure. By gradually transferring and distributing the load, it avoids insufficient bearing capacity of the upper soil and achieves the purpose of reducing the thickness of the reinforced concrete panel, thereby saving construction materials and costs. It can also be flexibly set according to the shape of the trench section and is suitable for diaphragm walls of various shapes such as arc and straight lines. In addition, the central reinforced concrete block 2 can also be cast as a whole with the steel sheet pile structure. The thickness and number of reinforced concrete blocks 2 are determined according to the equipment load, and it can be used for diaphragm wall structures with different depths, thicknesses and bearing requirements.

[0019] The supporting structure is a support plate 3 set inside the outer shell 1 of the pile body, and the central reinforced concrete block 2 is placed on the support plate 3; the support plate 3 supports the central reinforced concrete block 2.

[0020] A support plate 4 is provided between the support plate 3 and the inner wall of the pile shell 1. The support plate 4 and the support plate 3 are T-shaped. This improves the strength of the support plate 3 and reduces the possibility of breakage. The support structure is made of welded steel plates. The distance between the welding position and the top of the pile shell 1 is the height of the central reinforced concrete block 2.

[0021] The support plate 3 is symmetrically arranged on the inner side of the pile shell 1, so that the central reinforced concrete block 2 is supported more stably and securely, avoiding tilting and instability.

[0022] The pile shell 1 is divided into two identical three-plate 101. The cross-section of the three-plate 101 is trapezoidal. The sides of the three-plate 101 are welded together to form the pile shell 1. The connector is set on the outer edge of one side of the three-plate 101. In this way, the three-plate 101 can be stacked together during transportation, minimizing the transportation space occupied and improving transportation efficiency. Moreover, the trapezoidal shape of the three-plate 101 makes the structure simple and easy to produce.

[0023] The connector is a U-shaped latch 5 installed on the outer shell 1 of the pile body. The U-shaped latches 5 can be interlocked with each other, and adjacent outer shells 1 of the pile body can be interlocked and connected to form a honeycomb structure, so as to achieve the purpose of flexible setting. It can be set as a single row, double row and lattice type according to the needs of the diaphragm wall depth, the bearing capacity of the foundation soil, the equipment load, etc., and its combination form is not restricted by the structural size.

[0024] The outer surface of the central reinforced concrete block 2 is in contact with the inner wall of the pile shell 1; this avoids situations such as excessive gaps, displacement or slippage between the central reinforced concrete block 2 and the pile shell 1 support.

[0025] After clearing the site, a shallow trench with a central reinforced concrete block 2 is excavated at the guide wall location. Then, the welded and assembled pile shell 1 is driven into the soil using piling equipment. The central reinforced concrete block 2 is then hoisted in and placed on the supporting structure to form a prefabricated guide wall structure block. Multiple prefabricated guide wall structure blocks are installed sequentially, with each block connected by interlocking latches 5, forming a trench to meet the construction requirements of a single-span diaphragm wall. After the diaphragm wall is poured, the central reinforced concrete block 2 and pile shell 1 are removed sequentially, and the guide wall location is backfilled to complete the trench section construction. The prefabricated guide wall structure blocks are moved to the next section for reuse. The latches 5 of the previous prefabricated guide wall structure serve as guides for the installation of the next prefabricated guide wall structure. Lubricating oil is applied to the latches 5 to facilitate the installation and dismantling of the prefabricated guide wall structure. The central reinforced concrete block 2 can be prefabricated in a factory, with pre-reserved lifting lugs on the top surface for easy installation and dismantling. Its processing thickness can be fixed in a module. A single prefabricated guide wall structure can use one or more blocks. Multiple central reinforced concrete blocks 2 are used, the number of which is determined according to the load-bearing requirements. The prefabricated guide wall structure blocks can be set in single row, double row, and lattice structure according to the diaphragm wall depth, foundation soil bearing capacity, equipment load, etc., and their combination form is not restricted by the structural size. When dismantling the prefabricated guide wall structure blocks, the central reinforced concrete blocks are first lifted and removed by hooking them onto the lifting lugs. Then, the pile shell 1 is pulled out by the pile extraction equipment. Finally, the installation position is backfilled and compacted. The central reinforced concrete blocks can be cast in place with the pile shell 1 to form an integral structure, thereby improving its overall rigidity. When casting into an integral structure, a steel mesh is laid on the supporting structure. The steel mesh is welded and fixed to the pile shell 1. After the concrete is poured, it is integrally formed and welded to the outside of the steel sheet pile. When using an integrally formed structure for installation, the pile driving equipment lifts the prefabricated guide wall structure as a whole, positions it, and presses it into the soil. When dismantling, the steel sheet pile is clamped and pulled out by the pile extraction equipment.

[0026] The technical effects of this utility model are as follows: The steel sheet piles inserted into the soil reinforce shallow, soft soil, greatly improving its stability. Secondly, the steel sheet pile structure forms a water-stop curtain, which helps maintain the mud level in the trench during trenching, thus improving the stability of the trench wall. The central reinforced concrete block 2 is a structure that directly bears the load of the trenching machine and other equipment. Through the supporting structure, the vertical load is transferred to the steel sheet piles and then to the soil beside them. By gradually transferring and distributing the load, insufficient bearing capacity of the upper soil is avoided, achieving the goal of reducing the thickness of the reinforced concrete panel, thereby saving construction materials and costs. Furthermore, it can be flexibly set according to the shape of the trench section, suitable for various shapes of diaphragm walls such as arc and straight lines. Additionally, the central reinforced concrete block 2 can also be cast integrally with the steel sheet pile structure. The thickness and quantity of the reinforced concrete block 2 are determined according to the equipment load, making it suitable for diaphragm wall structures of different depths, thicknesses, and bearing requirements.

[0027] The present invention has been described above by way of example with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the inventive concept and technical solution of the present invention; or the direct application of the inventive concept and technical solution to other situations without modification, are all within the protection scope of the present invention.

Claims

1. A prefabricated guide wall structure block, characterized in that: The pile includes a pile shell (1), which is hexagonal in shape. A central reinforced concrete block (2) is provided on the inner side of the pile shell (1). The pile shell (1) is made of steel plate. Connectors that can be connected to each other are provided on the outer side of the pile shell (1). A support structure that supports the central reinforced concrete block (2) is provided on the inner side of the pile shell (1).

2. The prefabricated guide wall structure block according to claim 1, characterized in that: The supporting structure is a support plate (3) set inside the outer shell (1) of the pile body, and the central reinforced concrete block (2) is placed on the support plate (3).

3. The prefabricated guide wall structure block according to claim 2, characterized in that: A support plate (4) is provided between the support plate (3) and the inner wall of the pile shell (1), and the support plate (4) and the support plate (3) are T-shaped.

4. A prefabricated guide wall structure block according to claim 2, characterized in that: The support plate (3) is symmetrically arranged on the inner side of the pile shell (1).

5. A prefabricated guide wall structure block according to claim 1, characterized in that: The pile shell (1) is divided into two identical three-piece plates (101). The cross-section of the three-piece plates (101) is trapezoidal. The sides of the three-piece plates (101) are welded together to form the pile shell (1). The connector is set on the outer edge of one side of the three-piece plates (101).

6. A prefabricated guide wall structure block according to claim 5, characterized in that: The connector is a buckle (5) installed on the outer shell (1) of the pile body, and the buckle (5) is U-shaped.

7. A prefabricated guide wall structure block according to claim 1, characterized in that: The outer surface of the central reinforced concrete block (2) is in contact with the inner wall of the pile shell (1).

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