Novel retaining wall of manual hole digging pile

Abstract

The invention discloses a novel retaining wall of a manual hole digging pile, and relates to the technical field of manual hole digging piles. Comprising a plurality of arc-shaped protection walls, the arc-shaped protection walls are connected end to end to form a cylindrical structure, a plurality of connecting steel sheets are arranged on the edge of the inner side of each arc-shaped protection wall, the adjacent arc-shaped protection walls are connected through the connecting steel sheets, and the auxiliary separation assemblies are arranged on the two sides of the top of each arc-shaped protection wall. Each auxiliary separation assembly comprises a separation wedge capable of moving up and down, and when the separation wedge moves downwards, the arc-shaped protection wall and the concrete layer can be separated. The retaining wall is simple in structure, safe, reliable and high in assembly speed, factory production can be achieved, the formed whole has lateral strength, compared with the prior art, the time for waiting for concrete strength is not needed, the construction cost is greatly reduced, therefore, the working efficiency is improved, and the time for influencing railway operation is shortened.

Description

Technical Field

[0001] The present invention relates to the technical field of manually dug piles, and particularly relates to a new type of retaining wall for manually dug piles. Background Art

[0002] When lengthening existing railway culverts and bridges, due to limited conditions and to ensure the operation safety of the existing railway, before the foundation pit excavation, manually dug piles are used on both sides of the existing culverts and bridges for protection to ensure the operation safety of the foundation pit and the operating line. Generally, cast-in-place concrete retaining walls are used outside the pile bodies to protect the stability of the surrounding soil. After one section of the concrete retaining wall is poured, it is necessary to wait for the concrete to reach the specified strength before the excavation of the lower layer of soil can be carried out, resulting in a long construction time. The retaining wall of a manually dug pile refers to a protective structure provided on the inner wall of the pile hole during the construction of a manually dug pile to prevent the collapse of the hole wall, ensure construction safety and the forming quality of the pile.

[0003] In order to save construction costs, the steel retaining wall can be removed after construction to achieve reuse and reduce costs. Usually, when the concrete retaining wall is basically solidified, the steel retaining wall can be removed. However, due to the adhesion between the steel retaining wall and the concrete, when the existing steel retaining wall is removed, it is necessary to vibrate or knock the steel retaining wall to separate it by using a vibrator or a hammer. The method of vibratory separation is more cumbersome and requires the prior arrangement of the vibrator, resulting in low removal efficiency. And separating by hammer knocking will cause deformation of the steel retaining wall, affecting subsequent use.

[0004] Therefore, we have proposed a new type of retaining wall for manually dug piles. Summary of the Invention

[0005] The main purpose of the present invention is to provide a new type of retaining wall for manually dug piles to overcome or improve at least one technical problem of the existing technology, or to provide a useful alternative.

[0006] To solve the above technical problems, the present invention has taken the following technical solutions:

[0007] A new type of retaining wall for manually dug piles includes a plurality of arc-shaped retaining walls. The plurality of arc-shaped retaining walls form a cylindrical structure by connecting head to tail. A plurality of connecting steel sheets are provided at the inner edge of each arc-shaped retaining wall, and adjacent arc-shaped retaining walls are connected by the connecting steel sheets;

[0008] It further includes an auxiliary separation component. The auxiliary separation component is arranged on both sides of the top of each arc-shaped retaining wall. Each auxiliary separation component includes a separable wedge that can move up and down. When the separable wedge moves downward, it can separate the arc-shaped retaining wall from the concrete layer.

[0009] Further, positioning columns are provided on the connecting steel sheets on one side of the arc-shaped retaining wall, and positioning grooves are formed on the connecting steel sheets on the other side of the arc-shaped retaining wall. Each pair of adjacent arc-shaped retaining walls are positioned through the cooperation of the positioning columns and the positioning grooves.

[0010] Further, each two adjacent connecting steel sheets are connected by bolts.

[0011] Further, each of the auxiliary separation components further includes a sliding limit column, and a telescopic sliding block is slidably connected to each of the sliding limit columns.

[0012] Further, a spring is fixedly connected to the bottom of the telescopic sliding block, and the bottom of the spring is fixedly connected to the top of the arc-shaped retaining wall.

[0013] Further, the movable end of the telescopic sliding block is fixedly connected to the separation wedge.

[0014] Further, a knocking plate is provided on the top of the separation wedge.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] By providing auxiliary separation components on both sides of the top of the arc-shaped retaining wall, compared with the prior art, the separation process of the arc-shaped retaining wall from the concrete layer is very simple, without the need to pre-arrange equipment, and the arc-shaped retaining wall will not be damaged, so that the arc-shaped retaining wall can be reused.

[0017] Each two adjacent connecting steel sheets are connected by bolts. After the preliminary positioning and combination of multiple arc-shaped retaining walls are completed, the adjacent connecting steel sheets are locked and fixed by bolts, so that the adjacent arc-shaped retaining walls can be closely attached to each other. The overall structure is simple, safe and reliable, the assembly speed is fast, it can also be produced in a factory, and the formed whole has lateral strength resistance. Compared with the past, there is no need to wait for the concrete strength time, which greatly reduces the construction cost, thereby improving work efficiency and shortening the time affecting railway operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of the overall structure of the present invention.

[0019] Figure 2 is Figure 1 the enlarged view at A in

[0020] Figure 3 is a schematic diagram of a partial structure of the present invention.

[0021] Figure 4 is Figure 3 the enlarged view at B in

[0022] Figure 5This is a schematic structural diagram of the auxiliary separation component in the present invention.

[0023] Reference numerals: 1, arc-shaped retaining wall; 2, connecting steel sheet; 3, auxiliary separation component; 4, positioning column; 5, positioning groove; 6, bolt; 7, sliding limit column; 8, separation wedge; 9, telescopic sliding block; 10, spring; 11, knocking plate. Specific embodiments

[0024] The technical solution of the present invention will be further described below with reference to the drawings and embodiments.

[0025] As Figures 1-5 shown, this embodiment provides a new type of retaining wall for manually dug piles, including a plurality of arc-shaped retaining walls 1. The plurality of arc-shaped retaining walls 1 form a cylindrical structure by connecting head to tail. A plurality of connecting steel sheets 2 are provided at the inner edge of each arc-shaped retaining wall 1, and adjacent arc-shaped retaining walls 1 are connected by connecting steel sheets 2;

[0026] It further includes an auxiliary separation component 3. The auxiliary separation component 3 is provided on both sides of the top of each arc-shaped retaining wall 1. Each auxiliary separation component 3 includes a separation wedge 8 that can move up and down. When the separation wedge 8 moves downward, it can separate the arc-shaped retaining wall 1 from the concrete layer.

[0027] In the present invention, by providing the auxiliary separation component 3 on both sides of the top of the arc-shaped retaining wall 1, compared with the prior art, the separation process of the arc-shaped retaining wall 1 from the concrete layer is very simple, without the need to pre-arrange equipment, and it will not cause damage to the arc-shaped retaining wall 1, so that the arc-shaped retaining wall 1 can be reused.

[0028] Please refer to Figures 2-4 , a positioning column 4 is provided on the connecting steel sheet 2 on one side of the arc-shaped retaining wall 1, and a positioning groove 5 is formed on the connecting steel sheet 2 on the other side of the arc-shaped retaining wall 1. Each pair of adjacent arc-shaped retaining walls 1 are positioned by the cooperation of the positioning column 4 and the positioning groove 5. Through such a design, when the manually dug pile is excavated, a plurality of arc-shaped retaining walls 1 can be assembled. First, the positioning column 4 can be inserted into the adjacent positioning groove 5 to perform preliminary positioning on the plurality of arc-shaped retaining walls 1 to prevent them from shifting.

[0029] Please refer to Figure 2 , each two adjacent connecting steel sheets 2 are connected by bolts 6. Through such a setting, when a plurality of arc-shaped retaining walls 1 are preliminarily positioned and combined, the adjacent connecting steel sheets 2 are locked and fixed by bolts 6, so that the adjacent arc-shaped retaining walls 1 can be closely attached to each other, thereby improving the sealing performance. When pouring concrete subsequently, it can prevent the concrete from leaking.

[0030] Please refer to Figures 2-5, each auxiliary separation component 3 further includes a sliding limit post 7, on each sliding limit post 7, a telescopic sliding block 9 is slidably connected, the bottom of the telescopic sliding block 9 is fixedly connected with a spring 10, the bottom of the spring 10 is fixedly connected with the top of the arc-shaped retaining wall 1, and the movable end of the telescopic sliding block 9 is fixedly connected with the separation wedge 8. A percussion plate 11 is arranged on the top of the separation wedge 8.

[0031] It should be noted that when the concrete retaining wall is basically solidified, the top of the percussion plate 11 can be gently struck with a hammer, so that the separation wedge 8 can move downward. Since the bottom of the separation wedge 8 is thick and wide at one end and narrow and thin at the other end in a slope shape, the component force generated by its inclined surface can be used to separate the arc-shaped retaining wall 1 from the concrete layer. Compared with the prior art, this separation process is very simple, does not require pre-arranging equipment, and will not cause damage to the arc-shaped retaining wall 1, so that the arc-shaped retaining wall 1 can be reused.

[0032] The above is only a preferred embodiment of the present invention, and does not impose any limitation on the technical scope of the present invention. Therefore, any minor modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A new type of artificial bored pile wall protection, characterized in that: It comprises a plurality of arc-shaped protective walls (1), wherein the plurality of arc-shaped protective walls (1) are connected end to end to form a cylindrical structure, a plurality of connecting steel sheets (2) are arranged at the inner edge of each arc-shaped protective wall (1), and adjacent arc-shaped protective walls (1) are connected via the connecting steel sheets (2); It also includes an auxiliary separation component (3), which is arranged on both sides of the top of each of the arc-shaped protective walls (1). Each of the auxiliary separation components (3) includes a separation wedge (8) that can move up and down. When the separation wedge (8) moves downward, the arc-shaped protective wall (1) can be separated from the concrete layer.

2. A new type of artificial bored pile wall protection as claimed in claim 1, characterized in that: A positioning column (4) is provided on the connecting steel sheet (2) on one side of the arc-shaped protective wall (1), and a positioning groove (5) is provided on the connecting steel sheet (2) on the other side of the arc-shaped protective wall (1), and each pair of adjacent arc-shaped protective walls (1) are positioned by the positioning column (4) and the positioning groove (5).

3. A new type of artificial bored pile wall protection as claimed in claim 2, characterized in that: Every two adjacent connecting steel sheets (2) are connected via bolts (6).

4. A new type of artificial bored pile wall protection as claimed in claim 1, characterized in that: Each of the auxiliary separation components (3) further comprises a sliding limit column (7), and each of the sliding limit columns (7) is slidably connected to a telescopic sliding block (9).

5. A new type of artificial bored pile wall protection as claimed in claim 4, characterized in that: The bottom of the telescopic sliding block (9) is fixedly connected to a spring (10), and the bottom of the spring (10) is fixedly connected to the top of the arc-shaped protective wall (1).

6. A new type of artificial bored pile wall protection as claimed in claim 5, characterized in that: The movable end of the telescopic sliding block (9) is fixedly connected to the separation wedge (8).

7. A new type of artificial bored pile wall protection as claimed in claim 6, characterized in that: A knocking plate (11) is arranged on the top of the separation wedge (8).

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