Positioning device in foundation pit supporting anchor cable hole

Abstract

The utility model belongs to the technical field of foundation pit supporting anchor cable hole positioning, and discloses a foundation pit supporting anchor cable hole interior positioning device which comprises a pipe frame and a plurality of sets of stabilizer bar supports arranged in the pipe frame, and stabilizer bar assemblies composed of first stabilizer bars and second stabilizer bars are arranged in the stabilizer bar supports. The first stabilizer bar and the second stabilizer bar are distributed on the two sides of the inner wall of the stabilizer bar support, the first stabilizer bar is fixedly connected, the second stabilizer bar is movably connected, and the first stabilizer bar and the second stabilizer bar can be matched under the action of the spring to effectively support an anchorage device and an anchor head of an anchor cable, so that the anchor cable is positioned in a hole. During construction, the anchor cable is inserted from one end of the pipe frame inserted in the hole and sequentially passes through the stabilizer bar assembly, after the anchor cable is completely inserted, the anchor cable is straightened through external force to be located in the middle of the pipe frame, finally, grouting is conducted in the hole, the positioning device is pulled away at the same time, and therefore the anchor cable is prevented from deviating in the hole, and effective positioning of the anchor cable is achieved. By adopting the device, the positioning efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of foundation pit support anchor cable hole positioning, and particularly relates to a foundation pit support anchor cable hole positioning device. Background Art

[0002] Anchor cables typically consist of multiple strands of high-strength steel wire or cable, one end of which is fixed to the structure. The other end is inserted into the borehole and bonded to the rock mass with an anchoring agent. To ensure the anchor cable provides the expected tensile strength, it must be installed in the correct position and orientation within the hole to effectively exert its tensile strength.

[0003] Traditional anchor cable installation methods rely primarily on the worker's experience and are aided by simple tools. These methods are limited in accuracy and reliability. To overcome these issues, various modern positioning technologies have emerged with the development of technology, such as: hole-end positioning devices, typically installed at the entrance of the borehole to preliminarily determine the position of the anchor cable; in-hole guide devices, designed to be inserted into the hole to guide the anchor cable precisely to the predetermined position; laser positioning systems, which use laser technology to precisely locate the position of the anchor cable within the hole; mechanical guide frames, a mechanical structure fixed to the hole end to maintain the correct position of the anchor cable during drilling; and magnetic positioning devices, which use magnetic materials to position the anchor cable to ensure its correct position within the hole. Although the above technologies have improved the accuracy of anchor cable installation to a certain extent, high-precision positioning devices are complex to operate and costly, and the installation process is time-consuming and labor-intensive, resulting in reduced work efficiency.

[0004] It can be seen that the existing anchor cable in-hole positioning device is difficult to install and operate due to its high construction requirements and complex overall structure, which greatly affects the positioning efficiency of the anchor cable. Utility Model Content

[0005] The utility model provides a foundation pit support anchor cable in-hole positioning device to solve the technical problem that the existing anchor cable in-hole positioning device is difficult to install and operate due to high construction requirements and relatively complex overall structure, which greatly affects the positioning efficiency of the anchor cable.

[0006] In order to achieve the above purpose, the present invention adopts the following technical contents:

[0007] A foundation pit support anchor cable in-hole positioning device, comprising a pipe rack;

[0008] A plurality of stabilizer bar supports are arranged in the pipe rack along the axial direction;

[0009] The stabilizer bar support is provided with a stabilizer bar assembly;

[0010] The stabilizer bar assembly includes a first stabilizer bar and a second stabilizer bar;

[0011] The first stabilizer bar is fixedly mounted on one side of the inner wall of the stabilizer bar support and is arranged obliquely with respect to the inner wall;

[0012] The second stabilizing rod is movably connected to the other side of the inner wall of the stabilizing rod support, and the second stabilizing rod is connected to a spring fixed to the stabilizing rod support;

[0013] The second stabilizing rod cooperates with the first stabilizing rod and can support the anchor and the anchor head of the anchor cable under the rebound action of the spring after the anchor cable passes through, so as to achieve the positioning of the anchor cable.

[0014] Furthermore, the stabilizer bar support adopts an annular columnar structure and is arranged on the inner wall of the pipe rack by welding or clamping.

[0015] Furthermore, the stabilizer bar support is made of cast iron.

[0016] Furthermore, a spring fixer is welded to the inner wall of the stabilizer bar support; one end of the spring is connected to the spring fixer, and the other end is connected to the middle part of the second stabilizer bar.

[0017] Furthermore, a stabilizer bar positioning hole is welded on the inner wall of the stabilizer bar support, and a bolt is inserted into the stabilizer bar positioning hole; one end of the second stabilizer bar is movably sleeved on the bolt; the stabilizer bar positioning hole and the spring fixer are located on the same side of the inner wall of the stabilizer bar support.

[0018] Furthermore, the spring fixer includes a support fixed to the inner wall of the stabilizer bar support, the support is inserted with a pin, and one end of the spring is connected to the pin.

[0019] Furthermore, one end of the first stabilizer bar is fixed to the inner wall of the stabilizer bar support by welding, and the other end is located in the middle position of the stabilizer bar support in the radial direction.

[0020] Furthermore, the pipe rack includes a pipe rack front end, a pipe rack middle section and a pipe rack end which are connected in sequence; the pipe rack front end, the pipe rack middle section and the pipe rack end are all connected by threads.

[0021] Furthermore, the front end of the pipe rack is connected to the end of the pipe rack through multiple groups of connected pipe rack middle sections.

[0022] Furthermore, the anchor head is connected to the anchor through a steel rope.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] The utility model provides a positioning device for anchoring cable in a foundation pit support hole. The device comprises a pipe rack and multiple groups of stabilizing rod supports arranged in the pipe rack, wherein a stabilizing rod assembly consisting of a first stabilizing rod and a second stabilizing rod is arranged in the stabilizing rod support; the first stabilizing rod and the second stabilizing rod are distributed on both sides of the inner wall of the stabilizing rod support, and the first stabilizing rod is fixedly connected, and the second stabilizing rod is movably connected, and the second stabilizing rod can cooperate with the first stabilizing rod under the action of a spring to effectively support the anchor and the anchor head of the anchor cable, thereby realizing the positioning of the anchor cable in the hole; during construction, the anchor cable is inserted from one end of the pipe rack that has been inserted into the hole, and passes through the stabilizing rod assembly in turn. After it is fully inserted, the anchor cable is straightened by external force so that it is located in the middle of the pipe rack, and finally grouting is injected into the hole and the positioning device is withdrawn at the same time, thereby preventing the anchor cable from deviating in the hole, thereby realizing effective positioning of the anchor cable; the structure and principle of the device are simple, easy to disassemble and operate, and the positioning efficiency is improved, and it has good promotion and application value.

[0025] Preferably, in the present invention, the stabilizer bar support adopts an annular columnar structure and is fixed to the inner wall of the pipe rack by welding or clamping, thereby enhancing the stability and reliability of the structure.

[0026] Preferably, in the present invention, the stabilizer bar support is made of cast iron, which has good strength and durability; this material selection ensures that the device can maintain stable performance during long-term use and reduces maintenance and replacement costs.

[0027] Preferably, in the present invention, by welding a spring fixer on the inner wall of the stabilizer bar support, and connecting one end of the spring to the spring fixer and the other end to the second stabilizer bar, the spring is stably installed and effectively rebounded; in this way, the stability and durability of the spring are improved, thereby enhancing the positioning effect of the anchor cable.

[0028] Preferably, in the present invention, the stabilizer bar positioning hole welded on the inner wall of the stabilizer bar support and the spring fixer are arranged so that the second stabilizer bar can be movably mounted on the bolt and supported by the elastic force of the spring; this design simplifies the installation and adjustment process of the second stabilizer bar and improves the flexibility and practicality of the device.

[0029] Preferably, in the present invention, the spring retainer adopts a design in which a pin is inserted into the support, so that one end of the spring can be firmly connected to the pin; this design improves the stability and reliability of the spring connection and ensures that the spring can maintain stable force and direction during the rebound process.

[0030] Preferably, in the present invention, one end of the first stabilizer bar is fixed to the inner wall of the stabilizer bar support by welding, and the other end is located in the radial middle position of the stabilizer bar support; this design enables the first stabilizer bar to more effectively support the anchor cable, prevent it from tilting or shifting, thereby improving the positioning accuracy.

[0031] Preferably, in the present invention, the pipe rack includes a pipe rack front end, a pipe rack middle section, and a pipe rack end section that are connected in sequence, and the sections are connected by threads. This design allows the length of the pipe rack to be adjusted as needed, thereby improving the adaptability and flexibility of the device. At the same time, the threaded connection method also facilitates the disassembly and installation of the device and ensures a firm connection and stability between the sections.

[0032] Further preferably, in the present invention, the front end and the end of the pipe rack are connected by multiple groups of connected pipe rack middle sections, so that the length of the pipe rack can be further adjusted to meet the support needs of foundation pits of different depths and sizes; this design improves the versatility and practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 A schematic diagram of the structure of an anchor cable provided in an embodiment of the present utility model;

[0034] Figure 2 A partial enlarged view of the anchor cable provided by the embodiment of the utility model, wherein A is Figure 1 Section A, Section B Figure 1 Middle B section, C is Figure 1 middle C segment;

[0035] Figure 3 A schematic diagram of the structure of a pipe rack provided in an embodiment of the present utility model;

[0036] Figure 4 This is a partial enlarged view of the anchor cable provided by an embodiment of the present utility model, wherein (a) is the front end of the pipe rack; (b) is the middle section of the pipe rack; (c) is the end of the pipe rack;

[0037] Figure 5 A three-dimensional diagram of a positioning device for anchor cables in foundation pit support provided by an embodiment of the present utility model;

[0038] Figure 6 A schematic diagram of the connection between a foundation pit support anchor cable in-hole positioning device and an anchor cable provided in an embodiment of the utility model;

[0039] Figure 7 Schematic diagram of the positioning process of a foundation pit support anchor cable hole positioning device and anchor cable segments A and B provided by an embodiment of the present utility model; (a) is before insertion; (b) is during insertion; (c) is after insertion;

[0040] Figure 8Schematic diagram of the positioning process of a foundation pit support anchor cable hole positioning device and anchor cable segment C provided by an embodiment of the present utility model; (a) is before insertion; (b) is during insertion; (c) is after insertion;

[0041] Figure 9 A schematic structural diagram of a positioning device for anchor cables in foundation pit support provided by an embodiment of the present utility model;

[0042] Figure 10 This is a structural schematic diagram from another perspective of the structural schematic diagram of a foundation pit support anchor hole positioning device provided by an embodiment of the present utility model.

[0043] Reference numerals:

[0044] 1. Anchor cable; 1-1. Anchorage; 1-2. Steel strand; 1-3. Anchor head;

[0045] 2. Pipe rack; 2-1. Front end of pipe rack; 2-2. Middle section of pipe rack; 2-3. End of pipe rack;

[0046] 3. Stabilizer bar support; 3-1. Stabilizer bar positioning hole; 3-2. Spring retainer; 3-3. Spring; 3-4. Inner wall of the stabilizer bar support cast iron pipe;

[0047] 4. Stabilizer bar assembly; 4-1. First stabilizer bar; 4-2. Second stabilizer bar. DETAILED DESCRIPTION

[0048] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention more clearly understood, the present invention is further described in detail in the following specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0049] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0050] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are intended to fall within the scope of protection of the present invention.

[0051] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0052] In the description of the embodiments of the present invention, it should be noted that if the terms "upper," "lower," "horizontal," "inner," etc. appear to indicate an orientation or positional relationship, they are based on the orientation or positional relationship shown in the accompanying drawings, or are the orientation or positional relationship in which the product of the present invention is typically placed when in use. These terms are used solely to facilitate the description of the present invention and to simplify the description. They do not indicate or imply that the device or component referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In addition, the terms "first," "second," etc. are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0053] In addition, if the term "horizontal" appears, it does not mean that the component must be absolutely horizontal, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0054] In the description of the embodiments of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0055] The present invention is described in further detail below with reference to the accompanying drawings:

[0056] Example

[0057] As mentioned in the background technology, although traditional positioning measures have improved the accuracy of anchor cable installation to a certain extent, the high-precision positioning device is complicated to operate and has high cost, and the installation process is time-consuming and labor-intensive, resulting in reduced work efficiency.

[0058] To address the above-mentioned issues, this embodiment provides a device for positioning anchor cables in foundation pit support holes. This device is easy to operate and convenient to position, and can improve the accuracy of the anchor cable installation in the hole, ensuring that the anchor cable is accurately placed according to design requirements. This improves the stability, safety, and reliability of the entire structure in various environments, making the device more convenient and reducing the technical requirements for operators. The design of this device takes into account adaptation to holes of different sizes, shapes, and depths, as well as different geological conditions, improving the universality and adaptability of the device, and reducing the time and labor required for anchor cable installation, thereby improving construction efficiency and shortening the project cycle.

[0059] like Figure 9 and Figure 10 As shown, the utility model provides a foundation pit support anchor cable hole positioning device, including a pipe rack 2, a stabilizer bar support 3, and a stabilizer bar assembly 4; the specific structure and connection relationship are as follows:

[0060] like Figure 1 and Figure 2 As shown, the foundation pit support anchor cable hole positioning device provided in this embodiment is suitable for Figure 1 The structural style of the middle anchor cable 1 is that the anchor cable 1 is composed of an anchor 1-1, a steel strand 1-2 and an anchor head 1-3; wherein the steel strand 1-2 passes through the anchor 1-1 and the end is inserted into the anchor head 1-3. Figure 2 As shown in Figures A, B and C in the figure.

[0061] like Figure 3 and Figure 4 As shown, the pipe rack 2 is composed of three parts: the front end 2-1, the middle section 2-1 and the end 2-3 of the pipe rack. The front end 2-1, the middle section 2-1 and the end 2-3 of the pipe rack are connected by bolts. Figure 4 As shown in Figures (a), (b) and (c) in the figure; the pipe rack 2 is the rack of the positioning device, which is composed of two cast iron and cast iron ring pipes, and the three sections of the pipe rack are connected by threaded connections; it should be noted that the number of sections of the middle section 2-1 of the pipe rack can be adjusted according to the length of the hole to meet the construction requirements of different hole lengths.

[0062] like Figure 5As shown, the stabilizer bar support 3 is fixed to the inner wall of the pipe rack 2 by welding or snap-fitting. For ease of construction, it is preferably installed at the connection point of the pipe rack 2. The stabilizer bar support 3 is also made of cast iron and is provided with a spring retainer 3-2, a stabilizer bar positioning hole 3-1, and a first stabilizer bar 4-1 of the stabilizer bar assembly 4. All of the above components are connected to the inner wall 3-4 of the stabilizer bar support cast iron pipe of the stabilizer bar support 3 by welding; the second stabilizer bar 4-2 is bolted to the stabilizer bar positioning hole 3-1, facilitating removal and installation between the two; one end of the spring 3-3 is connected to the spring retainer 3-2, and the other end is buckled to the second stabilizer bar 4-2; one end of the spring 3-3 can be connected to the spring retainer 3-2 via a pin.

[0063] like Figure 6 As shown, Figure 6 This is the positioning method of the anchor cable 1 in the pipe rack 2; the anchor cable 1 is inserted into the pipe rack 2, and the anchor 1-1 and the anchor head 1-3 are clamped by the stabilizer rod assembly 4.

[0064] The stabilizer bar assembly 4 includes a fixed first stabilizer bar 4-1 and a movable second stabilizer bar 4-2; the two stabilizers are distributed on both sides of the inner wall of the stabilizer bar support 3, and the stabilizer bar assembly 4 only has a supporting effect in one direction. After the grouting is completed, it will not affect the smooth withdrawal of the positioning device; the non-fixed end of the first stabilizer bar 4-1 is preferably arranged in the middle position of the radial direction of the stabilizer bar support, so as to ensure the positioning effect of the anchor cable 1.

[0065] In this embodiment, the stabilizer bar assembly 4 and the pipe rack 2 are both reusable and have a certain wear resistance, which reduces material consumption. In a complex hole environment, the connection between the stabilizer bar assembly 4 and the pipe rack 2 can remain relatively stable, thereby improving the reliability of the positioning device. The anchor cable 1 is located in the middle of the hole and does not contact the hole wall, which also ensures the uniform distribution of the slurry, thereby achieving the effect of improving the bearing capacity and stability of the foundation; the second stabilizer bar 4-2 is connected to the stabilizer bar positioning hole 3-1 using bolts that pass through the positioning hole 3-1 and the second stabilizer bar 4-2 in turn. The bolts are tightened and fixed with nuts on both sides. The second stabilizer bar 4-2 is rotatable on the bolt (or pin shaft), and the support The point is a spring-type movable fulcrum. After the anchor cable 1 is inserted into the pipe rack 2, the spring-type movable fulcrum only needs to apply a little outward pulling force to the anchor cable 1 to ensure that the anchor cable 1 does not contact the hole wall, and when the positioning device is pulled out, the fulcrum will not affect the withdrawal, which reduces the construction difficulty to a certain extent and improves work efficiency; when the anchor cable 1 is placed in the pipe rack 2, the stabilizing rod assembly 4 supports the anchor 1-1 on the anchor cable 1, and the stabilizing rod assembly 4 is only in contact with the anchor 1-1 but not connected, which can play a role in supporting the anchor cable 1. Under the support of the bilateral stabilizing rod assembly 4, the position of the anchor 1-1 can be guaranteed to remain unchanged, and it is conducive to installation and disassembly, reducing workload and reducing work difficulty.

[0066] This embodiment provides a positioning device for anchor cable holes in foundation pit support. Figure 7 and Figure 8 As shown, the specific working principle is as follows:

[0067] Specific as Figure 7 (a), (b) and (c) in Figure 8 As shown in (a), (b), and (c), the anchor cable 1 is inserted into the hole through the pipe rack 2, increasing the bearing capacity and stability of the foundation pit wall and serving as a framework for the entire positioning device. The second stabilizer bar 4-2 connected to the stabilizer bar support 3 and the first stabilizer bar 4-1 work in conjunction to position the anchor cable 1. When the pipe rack 2 is driven into the hole, the first stabilizer bar 4-1 is located at the bottom. This is so that after the anchor cable 1 is inserted into the pipe rack 2, the first stabilizer bar 4-1 can support the anchor 1-1 or anchor head 1-3, ensuring that the anchor cable 1 is located in the middle of the hole. After the anchor cable 1 is inserted, a certain outward pulling force is applied to the anchor cable 1 to straighten the anchor cable 1 and position it in the middle of the pipe rack 2. When the pipe rack 2 is withdrawn, the grouting continues, firstly to ensure uniform grouting in the hole, and secondly to prevent the anchor cable 1 from shifting.

[0068] The specific construction operation process is as follows:

[0069] First, drive the connected and assembled pipe rack 2 into the hole. During the driving process, ensure that the first stabilizer bar assembly 4-1 is at the bottom. When it is fully driven in, insert the anchor cable 1 into the pipe rack 2. The insertion process is as follows: Figure 5 As shown, after the anchor cable 1 is inserted into the end of the device, a certain outward force is applied to the anchor cable 1 to keep it stationary, and then slurry is injected into the hole. When the slurry overflows from the hole mouth, the outward force on the anchor cable 1 is removed, and grouting is continued. The positioning device is slowly pulled out, and when the positioning device is completely pulled out, grouting is continued for 10 minutes. It should be noted here that during the grouting process, the positioning device is pulled outward. Since the pressure of the slurry on the anchor cable 1 is much greater than the friction generated by the relative displacement trend of the positioning device and the anchor cable 1, the anchor cable 1 will not be displaced during the withdrawal process.

[0070] In this embodiment, the anchor and anchor head in the anchor cable not only serve to fix the steel strand, but also the stabilizer bar can support the anchor and anchor head during construction, so that the anchor cable is located in the middle of the hole; the pipe rack is divided into three sections, which are connected by bolts to facilitate the connection of the movable stabilizer bar and the transportation and construction of the pipe rack. The spring in the stabilizer bar support connects the stabilizer bar, giving the stabilizer bar a pulling force, so that the stabilizer bar and the anchor cable are in closer contact, improving the supporting effect and facilitating the withdrawal of the pipe rack. The two stabilizer bars work together to support the anchor cable, preventing the anchor cable from deviating up and down and contacting the hole wall, ensuring the uniform distribution of the slurry, and achieving the effect of improving the bearing capacity and stability of the foundation. After the anchor is inserted into the positioning device, a certain outward pulling force can be applied to the anchor cable to ensure that the anchor cable is located in the middle of the hole, thereby improving the effect of the anchor cable.

[0071] In summary, this embodiment provides a positioning device for anchor cables in foundation pit support holes, which has the following advantages over existing positioning devices:

[0072] Since this positioning device adopts a pipe rack suitable for anchor cables, when positioning, the pipe rack is first driven into the hole, and then the anchor cable is inserted into the pipe rack. Under the combined action of the second stabilizing rod and the first stabilizing rod in the pipe rack, the anchor and anchor head in the anchor cable can be clamped. When an outward pulling force is applied to the anchor cable, the anchor cable will be straightened. Since the stabilizing rod only supports the anchor, the device pipe rack can be smoothly pulled out during the grouting process, which can ensure that the anchor cable is in the middle of the hole and does not contact the hole wall, and the device pipe rack can be recycled. This positioning device is simple to operate and easy to construct. The design of the device can adapt to different geological conditions, improve the universality and adaptability of the device, and can reduce the time and labor required for anchor cable installation, improve construction efficiency, and thus shorten the project period.

[0073] The above embodiment is only one of the implementation methods that can realize the technical solution of the present invention. The scope of protection claimed by the present invention is not limited only to this embodiment, but also includes within the technical scope disclosed by the present invention, any changes, replacements and other implementation methods that can be easily thought of by any technician familiar with this technical field.

Claims

1. A positioning device for anchor cable holes in foundation pit support, characterized in that: including a pipe rack (2); Multiple groups of stabilizer rod supports (3) are axially arranged in the pipe rack (2); The stabilizer bar support (3) is provided with a stabilizer bar assembly (4); The stabilizing bar assembly (4) comprises a first stabilizing bar (4-1) and a second stabilizing bar (4-2); The first stabilizing rod (4-1) is fixedly mounted on one side of the inner wall of the stabilizing rod support (3) and is arranged at an angle to the inner wall; The second stabilizing rod (4-2) is movably connected to the other side of the inner wall of the stabilizing rod support (3), and the second stabilizing rod (4-2) is connected to a spring (3-3) fixed to the stabilizing rod support (3); The second stabilizing rod (4-2) cooperates with the first stabilizing rod (4-1) and can support the anchor (1-1) and the anchor head (1-3) of the anchor cable (1) under the rebound action of the spring (3-3) after the anchor cable (1) passes through, so as to achieve the positioning of the anchor cable (1).

2. The foundation pit support anchor cable in-hole positioning device according to claim 1, characterized in that: The stabilizer bar support (3) adopts an annular columnar structure and is arranged on the inner wall of the pipe rack (2) by welding or clamping.

3. The foundation pit support anchor cable in-hole positioning device according to claim 1, characterized in that: The stabilizer bar support (3) is made of cast iron.

4. The foundation pit support anchor cable in-hole positioning device according to claim 1, characterized in that: A spring fixer (3-2) is welded to the inner wall of the stabilizing rod support (3); one end of the spring (3-3) is connected to the spring fixer (3-2), and the other end is connected to the middle part of the second stabilizing rod (4-2).

5. The device for positioning anchor cables in a foundation pit support hole according to claim 4, characterized in that: A stabilizing rod positioning hole (3-1) is welded to the inner wall of the stabilizing rod support (3), and a bolt is inserted into the stabilizing rod positioning hole (3-1); one end of the second stabilizing rod (4-2) is movably sleeved on the bolt; the stabilizing rod positioning hole (3-1) and the spring fixer (3-2) are arranged on the same side of the inner wall of the stabilizing rod support (3).

6. The device for positioning anchor cables in a foundation pit support hole according to claim 4, characterized in that: The spring fixer (3-2) comprises a support fixed to the inner wall of the stabilizer bar support (3), a pin shaft is inserted into the support, and one end of the spring (3-3) is connected to the pin shaft.

7. The device for positioning anchor cables in a foundation pit support hole according to claim 1, characterized in that: One end of the first stabilizing rod (4-1) is fixed to the inner wall of the stabilizing rod support (3) by welding, and the other end is located in the middle position of the radial direction of the stabilizing rod support (3).

8. The device for positioning anchor cables in a foundation pit support hole according to claim 1, characterized in that: The pipe rack (2) comprises a pipe rack front end (2-1), a pipe rack middle section (2-2) and a pipe rack end (2-3) which are connected in sequence; the pipe rack front end (2-1), the pipe rack middle section (2-2) and the pipe rack end (2-3) are all connected via threads.

9. The foundation pit support anchor cable in-hole positioning device according to claim 8, characterized in that: The pipe rack front end (2-1) and the pipe rack tail end (2-3) are connected via multiple groups of connected pipe rack middle sections (2-2).

10. The foundation pit support anchor cable in-hole positioning device according to claim 1, characterized in that: The anchor head (1-3) is connected to the anchor (1-1) via a steel rope (1-2).

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