Wall protection pile positioning and guiding construction device and method

Abstract

The invention provides a retaining pile positioning and guiding construction device and method, and belongs to the technical field of concrete construction.The device comprises a supporting unit arranged in the construction advancing direction of a retaining pile and used for supporting a guiding unit, and further comprises a self-supporting unit used for supporting the extending end of the guiding unit through the pre-built retaining pile; the guiding unit comprises a first limiting plate and a second limiting plate, and the first limiting plate and the second limiting plate extend outwards from the top end of the supporting unit to form a limiting channel used for containing the wall protecting pile. According to the positioning and guiding construction device for the dado pile, the limiting channel parallel to the construction advancing direction of the dado pile is arranged, the built dado pile is integrally limited, the levelness and perpendicularity accuracy of a pile body of the dado pile is greatly improved, the phenomenon that the pile body is inclined is completely eradicated, and the construction efficiency is improved. And therefore, the technical effect of integrally improving the construction efficiency of the retaining pile is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of concrete construction, in particular to a positioning and guiding construction device and method for retaining wall piles. Background Art

[0002] The retaining wall pile is a reinforced concrete pile used for deep foundation pit support. It has a variety of external designs such as square, round, and oval. It is composed of steel bars arranged around the perimeter and internal concrete. It has the function of reducing the scouring force of water flow on the river bank and achieving the function of protecting the river bank stability. The traditional construction method uses mixing piles. Usually, after a section of excavation, a circle of concrete retaining wall is made around it, and its inner diameter matches the diameter of the concrete pile. In modern construction technology, it is also possible to use a screw pile driver to complete the hole and pile formation at one time, which improves the construction efficiency and pile quality.

[0003] However, in the construction scenario of retaining wall piles, when the retaining wall piles are driven into the riverbed, due to the lack of limiting structure in the retaining wall piles, the pile body of the retaining wall piles is prone to tilt during the piling process; resulting in the retaining wall piles being unable to meet the requirements for pile body quality and construction speed.

[0004] Therefore, there is an urgent need for a highly efficient wall retaining pile positioning and guiding construction device and method. Summary of the invention

[0005] The object of the present invention is to provide a device and method for positioning and guiding construction of retaining wall piles, so as to solve at least one technical problem existing in the prior art.

[0006] The present invention protects a positioning and guiding construction device for retaining wall piles, comprising a supporting unit, which is arranged in the construction travel direction of the retaining wall piles and is used to support the guiding unit and the self-supporting unit;

[0007] The guide unit includes a first limit plate and a second limit plate, wherein the first limit plate and the second limit plate extend outward from the top of the support unit to form a limit channel for accommodating the wall protection pile; the setting direction of the limit channel is parallel to the construction direction of the wall protection pile;

[0008] A self-supporting unit is used to support the extended end of the guide unit by using pre-built wall protection piles; it includes a door-shaped fixing frame and a connecting piece, the fixing frame is set at the entrance of the limiting channel, the setting height of the fixing frame is greater than the height of the wall protection pile, and the connecting piece connects the fixing frame with the pre-built wall protection pile.

[0009] Furthermore, the preferred structure further comprises a tensioning unit for placing the constructed retaining wall piles close to each other; the tensioning unit comprises a third limit plate, which is slidably arranged in the limit channel and is closely arranged on the side of the retaining wall pile under construction through a tensioning member; wherein,

[0010] One end of the tensioning member is fixed on the fixing frame, and the other end is fixed on the third limiting plate.

[0011] Furthermore, a preferred structure is that the fixing frame includes vertical poles on both sides and a crossbeam connecting the vertical poles on both sides; and the fixed end of the connecting member is arranged on the crossbeam.

[0012] Furthermore, a preferred structure further includes: the connecting member is detachably connected to the crossbeam.

[0013] Furthermore, a preferred structure is that the connecting member is a steel chain.

[0014] Further, a preferred structure is that the tensioning member includes a rotating shaft and a tensioning chain, the rotating shaft is fixedly arranged on the fixing frame, one end of the tensioning chain is wound around the rotating shaft, and the other end is fixed to the limiting plate.

[0015] Furthermore, a preferred structure is that it also includes a driving motor, and the driving motor is connected to the rotating shaft.

[0016] Furthermore, a preferred structure further comprises a control system, wherein the control system controls the drive motor to retract and release the tension chain according to the construction progress of the retaining wall piles.

[0017] The present invention also includes a method for positioning and guiding the construction of a wall protection pile, which uses the above-mentioned positioning and guiding construction device for the wall protection pile to perform positioning and guiding construction of the wall protection pile; comprising:

[0018] Build the first set of retaining wall piles;

[0019] A support unit for supporting the guide unit and the self-supporting unit is provided in the construction advancing direction of the retaining wall pile;

[0020] A guide unit including a first limiting plate and a second limiting plate is extended outward from the top end of the support unit, wherein the first limiting plate and the second limiting plate form a limiting channel for accommodating the retaining wall piles to be constructed; the setting direction of the limiting channel is parallel to the construction direction of the retaining wall piles;

[0021] A self-supporting unit for supporting the extended end of the guide unit is built on the first group of wall-protecting piles; wherein the self-supporting unit comprises a door-shaped fixing frame and a connecting piece, the fixing frame is erected at the entrance of the limiting passage, the erection height of the fixing frame is greater than the height of the wall-protecting pile, and the connecting piece connects the fixing frame with the pre-built wall-protecting pile;

[0022] The retaining wall piles are constructed along the limiting passage.

[0023] Furthermore, the preferred method also includes arranging a tensioning unit on the fixed frame and the guide unit for setting the constructed retaining wall piles close to each other; the tensioning unit includes a third limiting plate, which is slidably set in the limiting channel and is tightly set on the side of the retaining wall pile under construction through a tensioning member; wherein one end of the tensioning member is fixed to the fixed frame, and the other end is fixed to the third limiting plate.

[0024] As described above, the positioning and guiding construction device and method of the wall pile of the present invention include a support unit, which is arranged in the construction direction of the wall pile and is used to support the guide unit and the tensioning unit; the guide unit includes a first limit plate and a second limit plate, and the first limit plate and the second limit plate extend outward from the top of the support unit to form a limit channel for accommodating the wall pile; the setting direction of the limit channel is parallel to the construction direction of the wall pile; the self-supporting unit is used to support the extended end of the guide unit with the pre-built wall pile; it includes a door-shaped fixed frame and a connecting piece, the fixed frame is erected at the entrance of the limit channel, the erection height of the fixed frame is greater than the height of the wall pile, and the connecting piece connects the fixed frame with the pre-built wall pile. The positioning and guiding construction device of the wall pile of the present invention is suitable for complex construction environments, such as the seabed, etc. The device is arranged on the pre-built wall pile by one end, which reduces the workload of the early construction and greatly improves the construction efficiency. It can be used repeatedly to reduce construction costs. By setting a limit channel parallel to the construction direction of the retaining wall piles, multiple groups of retaining wall piles are uniformly limited in the horizontal direction, which greatly improves the accuracy of the horizontality of the retaining wall piles, eliminates the occurrence of pile body skewness, and improves the safety of the entire project. The retaining wall piles under construction are limited in their overall horizontality through the limit channel, which reduces the operation of setting up limit brackets and testing the verticality of each pile body during the construction process, thereby achieving the technical effect of improving the overall efficiency of retaining wall pile construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] By referring to the following description and claims in conjunction with the accompanying drawings, and with a more comprehensive understanding of the present invention, other objects and results of the present invention will become more apparent and easier to understand. In the accompanying drawings:

[0026] Figure 1 It is a structural schematic diagram of a wall retaining pile positioning and guiding construction device according to an embodiment of the present invention.

[0027] Figure 2 It is another structural schematic diagram of a wall retaining pile positioning and guiding construction device according to an embodiment of the present invention.

[0028] Figure 3It is a schematic flow chart of a method for positioning and guiding construction of retaining wall piles according to an embodiment of the present invention.

[0029] in,

[0030] 1. Support unit; 2. Guide unit; 3. Self-support unit; 4. Tension unit; 5. Wall protection pile; 21. First limit plate; 22. Second limit plate; 31. Fixed frame; 32. Connecting piece; 41. Tension piece; 42. Third limit plate. DETAILED DESCRIPTION

[0031] In the following description, for the purpose of illustration, in order to provide a comprehensive understanding of one or more embodiments, many specific details are set forth. However, it is apparent that these embodiments may also be implemented without these specific details. In other examples, for ease of describing one or more embodiments, well-known structures and devices are shown in the form of block diagrams.

[0032] It should be understood that terms such as "horizontal", "vertical", "up", "down", "top", "middle", "length", "inside", and "bottom" indicating directions or positional relationships are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific direction, be constructed and operate in a specific direction, and therefore should not be understood as limiting the present invention.

[0033] Unless otherwise clearly defined and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, they can be fixedly connected, detachably connected, or integrated; they can be mechanically connected, electrically connected, or able to communicate with each other; they can be directly connected, or indirectly connected through an intermediate medium, and they can be internally connected between two elements or an interactive relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] Figure 1 and Figure 2 The structure of the wall protection pile positioning and guiding construction device of the present invention is described in general. Figure 1 It is a structural schematic diagram of a wall retaining pile positioning and guiding construction device according to an embodiment of the present invention. Figure 2 It is another structural schematic diagram of a wall retaining pile positioning and guiding construction device according to an embodiment of the present invention.

[0035] The positioning and guiding construction device for retaining wall piles includes a support unit 1 which is arranged in the construction direction of the retaining wall piles 5 and is used to support the guide unit 2 and the self-supporting unit 3; wherein the guide unit 2 includes a first limit plate 21 and a second limit plate 22, and the first limit plate 21 and the second limit plate 22 extend outward from the top of the support unit 1 to form a limit channel for accommodating the retaining wall piles 5; the setting direction of the limit channel is parallel to the construction direction of the retaining wall piles 5; the self-supporting unit 3 is used to support the extended end of the guide unit 2 by using the pre-built retaining wall piles 5; it includes a door-shaped fixing frame 31 and a connecting member 32, the fixing frame 31 is erected at the entrance of the limit channel, the erection height of the fixing frame 31 is greater than the height of the retaining wall piles 5, and the connecting member 32 connects the fixing frame 31 with the pre-built retaining wall piles 5.

[0036] In the prior art, after the construction of each group of wall-protecting piles is completed, the relationship between the edge line of the enclosure structure and the pile position must be measured to ensure the accuracy and stability of the pile position. In addition, during the construction process, a guide wall must be set up. The diameter of the positioning hole on the guide wall should be 30mm to 50mm larger than the diameter of the casing or drill bit, and the thickness of the guide wall should be 200mm to 500mm to ensure the verticality of the wall-protecting piles. In the specific implementation process, a group of wall-protecting piles is first built, and then a support unit 1 is set in front of the construction direction of the built wall-protecting piles. The wall-protecting pile positioning and guiding construction device of the present invention is suitable for complex construction environments. The device is set on the pre-built wall-protecting piles at one end, which reduces the workload of the early construction and greatly improves the construction efficiency. Through the limit channel set in parallel with the construction direction of the wall-protecting piles, multiple groups of wall-protecting piles are uniformly limited in the horizontal direction, which greatly improves the accuracy of the horizontality of the pile body of the wall-protecting piles, and eliminates the occurrence of the pile body skew phenomenon, thereby improving the safety of the entire project. The horizontal position of the retaining wall piles during construction is limited by the limiting channel, which reduces the operation of setting up limiting brackets and testing verticality of each pile during the construction process, thereby achieving the technical effect of improving the overall efficiency of retaining wall pile construction. Among them, the guide unit is mainly realized by the shaped I-beam.

[0037] As an improvement of this embodiment, a tensioning unit 4 is also included for setting the built wall piles 5 close to each other; the tensioning unit 4 includes a third limit plate 42 and a tensioning member 41 arranged on both sides of the third limit plate, the third limit plate 42 is slidably arranged in the limit channel, and is closely arranged on the side of the wall pile 5 under construction through the tensioning member 41; the tensioning member 41 is fixed on the fixed frame 31 at one end and fixed on the third limit plate 42 at the other end. In other words, as a further optimization of this embodiment, a tensioning unit 4 is added, and its function is to make the built wall piles 5 close to each other. The tensioning unit 4 includes a third limit plate 42, which can slide along the inside of the limit channel and is in close contact with the side of the wall pile 5 under construction through the tensioning member 41. In other words, the tensioning members on both sides and the third limit plate in the middle hold the wall piles on one side of the fixed frame tightly together. One end of the tensioning member 41 is connected to the fixed frame 31, and the other end is connected to the third limit plate 42. In the specific implementation process, the third limit plate 42 is a steel plate. In order to prevent the third limit plate from falling off from the top of the wall pile during the limiting process, a limit nail can also be set above and / or below the third limit plate; the limit nail needs to be inserted into the wall pile. In order to facilitate the smooth insertion of the limit nail into the inner hole of the wall pile and avoid damage to the wall pile, a matching method with an appropriate gap can be adopted. This method allows the limit nail to slide into the inner hole easily without causing any damage to it. Specifically, on one side of the fixed frame 31, the connecting piece 32 of the self-supporting unit 3 is used to tighten the first group of wall piles in the construction direction; and on the other side of the fixed frame 31, the combination of the third limit plate 42 and the tensioning piece 41 of the tensioning unit 4 is used to tighten the newly constructed wall piles in the direction of the fixed frame 31. By setting the tensioning unit 4, all the constructed wall piles 5 can be bound into a whole, thereby enhancing the docking tightness between adjacent wall piles.

[0038] In a specific embodiment, the tensioning member 41 includes a rotating shaft and a tensioning chain, the rotating shaft is fixedly arranged on the fixing frame 31, one end of the tensioning chain is wound around the rotating shaft, and the other end is fixed on the limit plate 42. In the specific implementation process, the design of the tensioning member 41 composed of the rotating shaft and the tensioning chain not only simplifies the operation process and improves the construction efficiency, but also makes maintenance and replacement convenient and fast due to its flexible adjustment ability and compact structural design. This design can evenly distribute the tensioning force, enhance the connection stability between the wall protection piles, and improve the bearing capacity and strength of the overall structure. In addition, by binding all the built wall protection piles into a whole, the docking tightness between adjacent wall protection piles is also enhanced, thereby ensuring the safety and reliability of construction in a complex or harsh construction environment. As an improvement of this embodiment, it also includes a drive motor, which is connected to the rotating shaft. It also includes a control system, which controls the drive motor to retract and release the tensioning chain according to the construction progress of the wall protection pile 5. The use of a drive motor connected to the shaft and equipped with a control system to automatically control the retraction and extension of the tension chain according to the progress of the retaining wall pile construction can significantly improve construction efficiency and reduce manual operations, especially when the tensioning force needs to be adjusted frequently. This system can accurately control the tensioning force to ensure the accuracy and safety of construction. At the same time, the automated tensioning system reduces dependence on manpower, reduces labor intensity, and reduces the risks caused by improper human operation. In addition, through the input drawing data, the control system can monitor the length change of the suspension chain in real time, and protect the electrical system by accurately controlling the motor operating parameters to prevent damage to the mechanical structure, thereby improving the stability and reliability of the entire system.

[0039] In a specific embodiment, the fixing frame 31 is installed at the entrance of the limiting passage, and the installation height of the fixing frame 31 is greater than the height of the retaining wall pile 5. That is to say, during the construction process, the fixing frame is to be installed across the built retaining wall pile. The fixing frame 31 includes vertical poles on both sides and a crossbeam connecting the vertical poles on both sides; the fixed end of the connecting member 32 is arranged on the crossbeam. By setting up a door-shaped fixing frame, the first limiting plate and the second limiting plate are connected; thereby increasing the lateral strength of the guide unit to prevent deformation; during the construction process, hoisting can also be performed at the fixing frame.

[0040] In the specific implementation process, the connecting member 32 is a steel chain. The connecting member 32 is detachably connected to the crossbeam. One end of the steel chain is fixed to the first set of wall protection piles that have been built, and the fixing method can also be achieved by inserting a limit nail into the inner hole of the wall protection pile. A mounting hole is opened on the steel beam. Then, the free end of the steel chain is fixed to the steel beam by means of high-strength bolts, pins, etc.

[0041] The present invention also includes a method for positioning and guiding a wall protection pile, comprising:

[0042] S110, build the first set of retaining wall piles 5. In the construction preparation stage, it is necessary to accurately lay out the pile positions according to the design drawings, establish measurement control points, and measure the relationship between the retaining structure edge and the pile positions. During the construction process, the verticality of the piles must be strictly monitored to lay a solid foundation for subsequent construction steps.

[0043] In order to ensure the stability of the drilling machine during the construction process and avoid problems such as drilling machine tilting, pile body deflection and pile position eccentricity caused by unstable foundation, the installation foundation must be reinforced. On soft soil foundation or sloped ground, a bulldozer should be used to level it first, and then steel plates or sleepers should be laid on it to enhance the stability of the foundation. When installing a drilling machine, it is crucial to accurately determine the center point of the pile position, especially for a drilling machine with a drilling tower. It is necessary to first use the power of the drilling machine and the ground anchor to initially position the drill rod, and then use a jack to lift the drilling machine frame for precise positioning operations to ensure that the lifting pulley, the drill bit or the hole for fixing the drill rod and the center of the casing are in a straight line, so as to ensure the verticality of the drilling machine and thus the accuracy and quality of the pile.

[0044] S120, support unit 1 for supporting guide unit 2 and self-support unit 3 is set in the construction direction of the wall protection pile 5; guide unit 2 including first limit plate 21 and second limit plate 22 is extended outward from the top of the support unit 1, and the first limit plate 21 and the second limit plate 22 form a limit channel for accommodating the wall protection pile 5 to be built; the setting direction of the limit channel is parallel to the construction direction of the wall protection pile 5. During construction, the pile foundation axis and pile position should be regularly re-measured and corrected.

[0045] In a specific embodiment, in the construction scene of 14-meter prestressed high-strength concrete retaining wall piles, 450 screw pile drivers and 490 screw pile drivers are used for construction. Support unit 1 is made of 30A I-beam with a height of 1000mm. The first limit plate and the second limit plate are made of 30B I-beam with a length of 6000mm; the spacing of the limit channel is 510mm (the retaining wall pile is 500*500mm).

[0046] It should be noted that in the construction scenario of 14-meter prestressed high-strength concrete retaining wall piles, when the length of the limit channel is set to 6 meters, when the retaining wall piles are halfway through construction, it is necessary to remove the retaining wall pile positioning and guiding construction device and carry out a second construction along the direction of construction. The length of the limit channel can be set to 3-20 meters. The smaller the set length, the better the horizontal and vertical limiting effect on the retaining wall piles. However, too many repeated constructions will affect the construction progress. Therefore, in order to take into account both construction efficiency and pile quality, the length of the limit channel is set to 6 meters.

[0047] S130. Build a self-supporting unit 3 for supporting the extended end of the guide unit 2 on the first group of wall protection piles 5; wherein the self-supporting unit 3 includes a door-shaped fixing frame 31 and a connecting member 32, the fixing frame 31 is erected at the entrance of the limiting channel, the erection height of the fixing frame 31 is greater than the height of the wall protection pile 5, and the connecting member 32 connects the fixing frame 31 with the pre-built wall protection pile 5.

[0048] The length of the self-supporting unit 3 is 3000 mm. The fixing frame is made of 30A I-beam. The connecting piece is a steel chain made of 20A-1 chain with a pitch of 31.75 mm.

[0049] S131, a tensioning unit 4 is provided on the fixing frame 31 and the guide unit 2 for placing the constructed retaining wall piles 5 close to each other; the tensioning unit 4 includes a third limit plate 42, which is slidably arranged in the limit channel and is closely arranged on the side of the retaining wall pile 5 under construction through a tensioning member 41; one end of the tensioning member 41 is fixed to the fixing frame 31, and the other end is fixed to the third limit plate 42. The tensioning member 41 includes a rotating shaft and a tensioning chain, the rotating shaft is fixed to the fixing frame 31, one end of the tensioning chain is wound around the rotating shaft, and the other end is fixed to the third limit plate 42. The rotating shaft is made of a steel pipe with a diameter of 10 mm, and is connected and fixed to the guide chain by a hook.

[0050] S140, constructing the wall protection piles 5 along the limiting channel.

[0051] The positioning and guiding construction device and method of the retaining wall piles of the present invention, by setting a limiting channel arranged parallel to the construction travel direction of the retaining wall piles, uniformly limits multiple groups of retaining wall piles in the horizontal direction, greatly improves the accuracy of the horizontality of the pile body of the retaining wall piles, and eliminates the occurrence of the pile body skew phenomenon, thereby improving the safety of the entire project. Suitable for complex construction environments, such as the seabed, the device is arranged on a pre-built retaining wall pile by one end, which reduces the workload of the early construction and greatly improves the construction efficiency. It can be used repeatedly to reduce the construction cost. The retaining wall piles under construction are limited in their overall horizontality through the limiting channel, which reduces the operation links of setting up limiting brackets and testing the verticality of each pile body during the construction process, thereby achieving the technical effect of improving the overall efficiency of the retaining wall pile construction.

[0052] However, those skilled in the art should understand that various improvements can be made to the above-mentioned device and method for positioning and guiding the wall pile provided by the present invention without departing from the content of the present invention. Therefore, the protection scope of the present invention should be determined by the content of the attached claims.

Claims

1. A wall protection pile positioning and guiding construction device, characterized in that: include, A support unit is arranged in the construction direction of the retaining wall pile and is used to support the guide unit and the self-support unit; The guide unit includes a first limit plate and a second limit plate, the first limit plate and the second limit plate extend outward from the top of the support unit to form a limit channel for accommodating the wall protection pile; the setting direction of the limit channel is parallel to the construction direction of the wall protection pile; The self-supporting unit is used to support the extended end of the guide unit using pre-built wall protection piles; it includes a door-shaped fixing frame and a connecting piece, the fixing frame is erected at the entrance of the limiting channel, the erection height of the fixing frame is greater than the height of the wall protection pile, and the connecting piece connects the fixing frame to the pre-built wall protection pile.

2. The wall protection pile positioning and guiding construction device according to claim 1 is characterized in that: It also includes a tensioning unit for placing the constructed wall protection piles close to each other; the tensioning unit includes The third limiting plate is slidably arranged in the limiting channel and is closely arranged on the side of the retaining wall pile under construction through a tensioning member; wherein, One end of the tensioning member is fixed on the fixing frame, and the other end is fixed on the third limiting plate.

3. The wall protection pile positioning and guiding construction device according to claim 1 is characterized in that: The fixing frame comprises vertical poles on both sides and a crossbeam connecting the vertical poles on both sides; the fixing end of the connecting member is arranged on the crossbeam.

4. The wall protection pile positioning and guiding construction device according to claim 3 is characterized in that: It also includes that the connecting member is detachably connected to the crossbeam.

5. The wall protection pile positioning and guiding construction device according to claim 4 is characterized in that: The connecting piece is a steel chain.

6. The wall protection pile positioning and guiding construction device according to claim 2 is characterized in that: The tensioning member comprises a rotating shaft and a tensioning chain. The rotating shaft is fixedly arranged on the fixing frame. One end of the tensioning chain is wound around the rotating shaft, and the other end is fixed on the limiting plate.

7. The wall protection pile positioning and guiding construction device according to claim 6 is characterized in that: It also includes a driving motor, which is connected to the rotating shaft.

8. The wall protection pile positioning and guiding construction device according to claim 7 is characterized in that: It also includes a control system, which controls the drive motor to retract and release the tension chain according to the construction progress of the wall protection piles.

9. A method for positioning and guiding a wall protection pile, characterized in that: A method for positioning and guiding a retaining wall pile by using the retaining wall pile positioning and guiding construction device as described in any one of claims 1 to 8; include, Build the first set of retaining wall piles; A support unit for supporting the guide unit and the self-supporting unit is provided in the construction advancing direction of the retaining wall pile; A guide unit including a first limiting plate and a second limiting plate is extended outward from the top end of the support unit, wherein the first limiting plate and the second limiting plate form a limiting channel for accommodating the retaining wall piles to be constructed; the setting direction of the limiting channel is parallel to the construction direction of the retaining wall piles; A self-supporting unit for supporting the extended end of the guide unit is built on the first group of wall-protecting piles; wherein the self-supporting unit comprises a door-shaped fixing frame and a connecting piece, the fixing frame is erected at the entrance of the limiting passage, the erection height of the fixing frame is greater than the height of the wall-protecting pile, and the connecting piece connects the fixing frame with the pre-built wall-protecting pile; The retaining wall piles are constructed along the limiting passage.

10. The method for positioning and guiding the wall protection pile according to claim 9, characterized in that: Also includes, A tensioning unit for placing the constructed retaining wall piles close to each other is arranged on the fixing frame and the guide unit; the tensioning unit includes a third limiting plate, the third limiting plate is slidably arranged in the limiting channel, and is closely arranged on the side of the retaining wall pile under construction through a tensioning member; one end of the tensioning member is fixed on the fixing frame, and the other end is fixed on the third limiting plate.

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