Prefabricated retaining wall of manual hole digging pile

Abstract

The utility model discloses a manual hole digging pile prefabricated retaining wall which comprises a standard arc piece which is a prefabricated piece. Matched upper and lower connecting assemblies are arranged at the top and the bottom of the standard arc piece, and matched left and right connecting assemblies are arranged at the left side end part and the right side end part of the standard arc piece. A plurality of prefabricated standard arc pieces are fixedly connected with one another to form a circular ring structure; and the tops and the bottoms of the plurality of circular ring structures are connected with each other through connecting sleeves to form a circular-tube-shaped wall protecting structure. In the structural measure, the protective wall is formed by splicing the prefabricated standard arc pieces, a stable annular structure can be formed, it is guaranteed that the strength of the protective wall is stable, the working performance can be achieved after installation is completed, the time for waiting for concrete setting is not needed, and the construction time is greatly shortened. In addition, the prefabricated standard arc-shaped piece is of a small-size sheet-shaped structure and can be conveniently conveyed to the position below a hole to be installed.

Description

Technical Field

[0001] The utility model relates to the field of engineering construction, in particular to a prefabricated retaining wall of a manually excavated pile. Background Art

[0002] The drilling methods for engineering pile foundations are mainly divided into drilling methods such as rotary pile drilling, impact drilling, and manual bored pile drilling. Among them, manual bored piles are an indispensable drilling method for pile foundation drilling due to their simple construction, wide range of excavated rock types, and low requirements for construction access roads at construction sites. However, because cast-in-place concrete retaining walls need to be constructed during the excavation of manual bored piles, the uneven construction quality of cast-in-place concrete retaining walls leads to safety issues and the need to wait for the solidification time of cast-in-place concrete, which affects the construction progress. Utility Model Content

[0003] In view of the above-mentioned defects in the prior art, a prefabricated retaining wall for bored piles is provided, which is produced in a unified standard, thus avoiding the long construction period and uneven quality of cast-in-place retaining walls that lead to construction safety problems. At the same time, the construction method of the prefabricated retaining wall for bored piles is simple and the construction time is short, thus speeding up the construction of bored piles.

[0004] The technical solution adopted by the utility model to solve the above technical problems is:

[0005] The prefabricated retaining wall of bored piles is characterized in that: it includes standard arc parts, which are prefabricated parts; matching upper and lower connecting components are provided at the top and bottom of the standard arc parts, and matching left and right connecting components are provided at the left and right ends of the standard arc parts; a plurality of standard arc parts are fixedly connected to each other through the left and right connecting components to form a circular ring structure, and the tops and bottoms of the plurality of circular ring structures are connected to each other through the upper and lower connecting components to form a circular tubular retaining wall structure.

[0006] According to the above technical solution, 2 to 6 standard arc parts are assembled into a circular ring structure.

[0007] According to the above technical scheme, the standard arc part includes an arc body and grouting holes. The upper and lower connecting components and the left and right connecting components are divided into two parts, which are respectively located at the top, bottom, left end, and right end of the arc body; the grouting holes are arranged on the side wall of the arc body to connect the inner and outer side surfaces of the arc body.

[0008] According to the above technical solution, the left and right connecting components include a left connecting seat arranged at the left end of the arc body, a right connecting seat arranged at the right end of the arc body, and a first connecting bolt. First through holes matching in size and position are respectively provided on the left and right connecting seats; when the two standard arc parts are fitted together, the left connecting seat and the right connecting seat located on the two standard arc parts are fitted together, and the first through holes of the two are connected; the first connecting bolt passes through the connected first through holes at the same time to realize the fixed connection of the two standard arc parts.

[0009] According to the above technical solution, the upper and lower connecting components include an upper connecting seat arranged at the top of the arc body, a lower connecting seat arranged at the bottom of the arc body, and a second connecting bolt, and second through holes with matching sizes and positions are respectively provided on the upper and lower connecting seats; when the two circular ring structures are fitted up and down, the upper connecting seat and the lower connecting seat located on the two circular ring structures fit each other, and the second through holes of the two are connected; the second connecting bolt passes through the connected second through holes at the same time to realize the fixed connection of the two circular ring structures.

[0010] According to the above technical scheme, the upper and lower connecting components include connecting steel bars and connecting sleeves. The top and bottom ends of the arc body both include a support seat located on the outside and a mounting groove located on the inside. The mounting groove is provided with openings near the inside of the arc and at the top or bottom of the mounting groove. When the two circular ring structures are connected, the upper and lower mounting grooves are connected; the connecting steel bars are vertically arranged in the mounting groove, and the connecting steel bars protrude from the support seat. When the two circular ring structures are connected, the connecting steel bars located at the bottom of the upper circular ring structure and the connecting steel bars located at the top of the lower circular ring structure overlap, and a threaded wire is provided on the outside of the connecting steel bars; the size of the connecting sleeve matches the size of the two connecting steel bars after overlapping, and the connecting sleeve is provided with an internal thread matching the threaded wire of the connecting steel bars; when the connecting sleeve is screwed into the overlapping area of ​​the two connecting steel bars, the upper and lower circular ring structures are fixedly connected.

[0011] According to the above technical solution, matching positioning grooves and positioning protrusions are respectively provided on the connecting seats of the two connected circular ring structures.

[0012] According to the above technical solution, the installation groove is annular in structure, and the grouting hole is located on the support seat.

[0013] According to the above technical solution, the installation groove is composed of a plurality of arc segments, and the grouting holes are located at a support seat area corresponding to a certain installation groove.

[0014] The utility model has the following beneficial effects:

[0015] 1. Multiple prefabricated standard arc parts are fixedly connected to each other to form a circular ring structure; and the tops and bottoms of the multiple circular ring structures are connected to each other through connecting sleeves to form a circular tubular wall protection structure. In this structural measure, the wall protection is assembled from prefabricated standard arc parts to form a stable ring structure, which ensures the stability of the wall protection strength and can achieve working performance after installation. There is no need to wait for the concrete to solidify, which greatly shortens the construction time. In addition, the prefabricated standard arc parts are small-sized sheet structures, which are convenient for transportation to the bottom of the hole for installation.

[0016] 2. Each standard arc piece is connected by the first connecting bolt, which is fast to install and reduces the construction time. The ring structures are connected by bolts or connecting steel bars with connecting sleeves, which is fast to install and firm and reliable.

[0017] 3. The prefabricated retaining wall is provided with grouting holes, which can timely inject cement slurry or mortar between the retaining wall and the soil, thereby increasing the stability of the soil and reducing the impact on the surrounding soil, causing soil settlement, deformation, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of an embodiment provided by the utility model;

[0019] Figure 2 It is a front view of an embodiment provided by the utility model;

[0020] Figure 3 It is a cross-sectional view of an embodiment provided by the utility model;

[0021] In the figure, 1, arc body; 2, grouting hole; 3, left connecting seat; 4, right connecting seat; 5, first through hole; 6, connecting steel bar; 7, support seat; 8, installation groove. DETAILED DESCRIPTION

[0022] The utility model is described in detail below with reference to the accompanying drawings and embodiments.

[0023] Reference Figure 1 to Figure 3 As shown, the utility model provides a prefabricated retaining wall of artificial bored piles.

[0024] Example 1

[0025] It includes standard arc parts, which are prefabricated parts; matching upper and lower connecting components are provided at the top and bottom of the standard arc parts, and matching left and right connecting components are provided at the left and right ends of the standard arc parts; several standard arc parts are fixedly connected to each other through the left and right connecting components to form a circular ring structure, and the tops and bottoms of the multiple circular ring structures are connected to each other through the upper and lower connecting components to form a circular tubular wall protection structure.

[0026] In this embodiment, a plurality of prefabricated standard arc parts are fixedly connected to each other to form a circular ring structure; and the tops and bottoms of the plurality of circular ring structures are connected to each other through connecting sleeves to form a circular tubular wall protection structure. In this structural measure, the wall protection is assembled from prefabricated standard arc parts to form a stable ring structure, which ensures the stability of the wall protection strength and can achieve working performance after installation, without waiting for the concrete to solidify, greatly shortening the construction time. In addition, the prefabricated standard arc parts are small-sized sheet structures, which are convenient for transportation to the bottom of the hole for installation.

[0027] Preferably, 2 to 6 standard arc parts are assembled into a circular ring structure.

[0028] In Example 1, the standard arc part includes an arc main body 1 and a grouting hole 2. The upper and lower connecting components and the left and right connecting components are divided into two parts, which are respectively located at the top, bottom, left end, and right end of the arc main body; the grouting hole is arranged on the side wall of the arc main body, which is used to connect the inner and outer side surfaces of the arc main body.

[0029] Example 2

[0030] The structure and principle of Example 2 are similar to those of Example 1, except that a preferred structural form of left and right connecting components is provided. The left and right connecting components include a left connecting seat 3 provided at the left end of the arc body, a right connecting seat 4 provided at the right end of the arc body, and a first connecting bolt. First through holes 5 of matching sizes and positions are provided on the left and right connecting seats, respectively. When two standard arc parts are fitted, the left connecting seat and the right connecting seat of the two standard arc parts fit each other, and the first through holes of the two are connected. The first connecting bolt passes through the connected first through holes at the same time to achieve a fixed connection between the two standard arc parts. Each standard arc part is connected by the first connecting bolt, which can speed up the installation and reduce the construction time.

[0031] Example 3

[0032] The structure and principle of Example 3 are similar to those of Example 2, except that: a preferred structural form of the upper and lower connection components is provided, which is not shown in the figure. The upper and lower connection components include an upper connection seat provided at the top of the arc body, a lower connection seat provided at the bottom of the arc body, and a second connection bolt. Second through holes of matching size and position are provided on the upper and lower connection seats respectively; when the two circular ring structures are fitted together, the upper connection seat and the lower connection seat located in the two circular ring structures fit each other, and the second through holes of the two are connected; the second connection bolt passes through the connected second through holes at the same time to achieve fixed connection of the two circular ring structures.

[0033] Example 4

[0034] The structure and principle of Example 4 are similar to those of Example 2, except that another preferred structural form of the upper and lower connection components is provided, as shown in the figure. The upper and lower connection components include a connecting steel bar 6 and a connecting sleeve. The top and bottom ends of the arc body both include a support seat 7 located on the outside and a mounting groove 8 located on the inside. The mounting groove is provided with an opening near the inside of the arc and at the top or bottom of the mounting groove. When the two circular ring structures are connected, the upper and lower mounting grooves are connected; the connecting steel bar is vertically arranged in the mounting groove, and the connecting steel bar protrudes from the support seat. When the two circular ring structures are connected, the connecting steel bar at the bottom of the upper circular ring structure overlaps with the connecting steel bar at the top of the lower circular ring structure, and a threaded wire is provided on the outside of the connecting steel bar; the size of the connecting sleeve matches the size of the two connecting steel bars after overlapping, and the connecting sleeve is provided with an internal thread matching the threaded wire of the connecting steel bar; when the connecting sleeve is screwed into the overlapping area of ​​the two connecting steel bars, the upper and lower circular ring structures are fixedly connected.

[0035] In this embodiment, the connecting sleeve is first sleeved on the connecting steel bar located at the lower circular ring structure. After the upper circular ring structure is accurately installed on the lower circular ring structure, multiple connecting sleeves are screwed into the overlapping areas of the corresponding connecting steel bars to achieve a fixed connection between the upper and lower circular ring structures.

[0036] In Example 4, preferably, matching positioning grooves and positioning protrusions are respectively provided on the connecting seats of the two connected circular ring structures, which is beneficial to the alignment of the connecting steel bars in the upper and lower circular ring structures, thereby facilitating the connecting sleeves to be screwed into the overlapping areas of the connecting steel bars at the same time.

[0037] In Example 4, the installation slot is annular in structure, and the grouting hole is located on the support seat. Alternatively, as shown in the figure, the installation slot is composed of multiple arc segments, and the grouting hole is located at the support seat area corresponding to a certain installation slot.

[0038] The above are only preferred embodiments of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made according to the scope of patent application of the present invention still fall within the protection scope of the present invention.

Claims

1. Prefabricated retaining wall of artificial bored piles, characterized by: It includes standard arc parts, which are prefabricated parts; matching upper and lower connecting components are provided at the top and bottom of the standard arc parts, and matching left and right connecting components are provided at the left and right ends of the standard arc parts; several standard arc parts are fixedly connected to each other through the left and right connecting components to form a circular ring structure, and the tops and bottoms of the multiple circular ring structures are connected to each other through the upper and lower connecting components to form a circular tubular wall protection structure.

2. The prefabricated retaining wall of artificial bored piles according to claim 1 is characterized by: 2 to 6 standard arc parts are assembled into a circular ring structure.

3. The prefabricated retaining wall of artificial bored piles according to claim 1 is characterized by: The standard arc part includes an arc body and grouting holes. The upper and lower connecting components and the left and right connecting components are divided into two parts, which are respectively located at the top, bottom, left end, and right end of the arc body; the grouting holes are arranged on the side wall of the arc body to connect the inner and outer sides of the arc body.

4. The prefabricated retaining wall of artificial bored piles according to claim 3 is characterized by: The left and right connecting components include a left connecting seat arranged at the left end of the arc body, a right connecting seat arranged at the right end of the arc body, and a first connecting bolt. First through holes of matching sizes and positions are respectively provided on the left and right connecting seats; when the two standard arc parts are fitted together, the left connecting seat and the right connecting seat located on the two standard arc parts are fitted together, and the first through holes of the two are connected; the first connecting bolt simultaneously passes through the connected first through holes to realize the fixed connection of the two standard arc parts.

5. The prefabricated retaining wall of artificial bored piles according to claim 3 is characterized by: The upper and lower connecting components include an upper connecting seat arranged at the top end of the arc body, a lower connecting seat arranged at the bottom end of the arc body, and a second connecting bolt. Second through holes matching in size and position are respectively provided on the upper and lower connecting seats. When the two circular ring structures are fitted together up and down, the upper connecting seat and the lower connecting seat located on the two circular ring structures fit each other, and the second through holes of the two are connected. The second connecting bolt passes through the connected second through holes at the same time to realize the fixed connection of the two circular ring structures.

6. The prefabricated retaining wall of artificial bored piles according to claim 3 is characterized by: The upper and lower connecting components include connecting steel bars and connecting sleeves. The top and bottom ends of the arc body include a support seat located on the outside and a mounting groove located on the inside. The mounting groove is provided with openings near the inside of the arc and at the top or bottom of the mounting groove. When the two circular ring structures are connected, the upper and lower mounting grooves are connected; the connecting steel bars are vertically arranged in the mounting groove, and the connecting steel bars protrude from the support seat. When the two circular ring structures are connected, the connecting steel bars located at the bottom of the upper circular ring structure and the connecting steel bars located at the top of the lower circular ring structure overlap, and threaded wires are provided on the outside of the connecting steel bars; the size of the connecting sleeve matches the size of the two connecting steel bars after overlapping, and the connecting sleeve is provided with an internal thread matching the threaded wire of the connecting steel bars; when the connecting sleeve is screwed into the overlapping area of ​​the two connecting steel bars, the upper and lower circular ring structures are fixedly connected.

7. The prefabricated retaining wall of artificial bored piles according to claim 6 is characterized by: Matching positioning grooves and positioning protrusions are respectively arranged on the connecting seat connecting the two circular ring structures.

8. The prefabricated retaining wall of artificial bored piles according to claim 6 is characterized by: The installation groove is annular in structure, and the grouting hole is located on the support seat.

9. The prefabricated retaining wall of artificial bored piles according to claim 6, characterized in that: The installation groove is composed of a plurality of arc segments, and the grouting hole is located at a supporting seat area corresponding to a certain installation groove.

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