Sliding groove U-shaped clamping device and construction method for tunnel embedded sliding groove piping

Abstract

The invention discloses a sliding groove U-shaped clamping device and a construction method for tunnel embedded sliding groove piping, and belongs to the technical field of subway tunnel construction. The technical problems that in the construction process of tunnel embedded sliding groove piping, a pipe clamp is inconvenient to use, connection is not stable enough, and construction efficiency is low are solved. According to the technical scheme, the sliding groove U-shaped clamp device comprises a sliding groove and a U-shaped clamp, an inverted-T-shaped installation groove is formed in the sliding groove, in the U-shaped clamp, a first clamping piece and a second clamping piece are oppositely arranged, the bottoms of the first clamping piece and the second clamping piece are clamped in the inverted-T-shaped installation groove through clamping openings, and a rubber bushing is placed in a space defined by the first clamping piece, the second clamping piece and the sliding groove. A connecting bolt penetrates through the connecting wings at the tops of the first clamping piece and the second clamping piece and is fastened through a nut; the construction method for the tunnel pre-buried sliding groove piping comprises the following steps that construction preparation is conducted; measuring and setting out; mounting a U-shaped clamp; piping installation; checking and accepting; and testing. The method is used for tunnel piping construction.

Description

Technical Field

[0001] The chute U-shaped card device of the present invention and the construction method of pre-buried chute piping in tunnels belong to the technical field of subway tunnel construction. Background Art

[0002] In subway tunnel construction, the piping method of pre-buried chutes and U-shaped pipe clips is a commonly used construction technique for installing and fixing various pipeline systems, including communication, power, and water pipelines. This method fixes the pipelines in the tunnel structure through pre-set chutes and pipe clips to ensure the stability of the pipelines and the overall safety of the system. The pre-buried technology allows the installation components to be placed at the designated positions before concrete pouring, thus forming an integrated installation solution in the tunnel wall.

[0003] The existing subway tunnel pre-buried chute piping construction technology usually has inaccurate measurement, resulting in deviation in the installation position of the pipelines. Eventually, the straightness of the pipelines is not very good, and rework is required in severe cases, affecting the construction efficiency. In addition, the chutes and pipe clips used in the construction process have the disadvantages of inconvenient use and unstable connection. Moreover, there is a lack of systematic construction monitoring and data recording means, and the data generated during the construction process is difficult to effectively record and track, resulting in insufficient reference and optimization for subsequent projects.

[0004] Due to the above deficiencies, it is necessary to develop a more reasonable pipeline fixing device, and the overall construction method also needs to be further improved. Summary of the Invention

[0005] Aiming at the deficiencies of the existing technology, the purpose of the present invention is to provide a chute U-shaped card device and a construction method for pre-buried chute piping in tunnels, which are convenient and fast to use, have a stable connection, high construction efficiency, and good construction quality.

[0006] To achieve the above purpose, the present invention adopts the following technical solutions. A chute U-shaped card device includes a chute and a U-shaped card. A reverse T-shaped installation groove is opened along the length direction on the top surface of the chute. The U-shaped card includes a first card, a second card, a rubber bushing, and a connecting bolt. The upper parts of the first card and the second card are both arc-shaped, and the tops are bent to form connecting wings. Through holes are opened on the connecting wings. Notches are opened on both sides of the lower parts of the first card and the second card as clamping openings. The first card and the second card are arranged oppositely, and the bottom is clamped in the reverse T-shaped installation groove through the clamping openings. The rubber bushing is placed in the space surrounded by the first card, the second card, and the chute. The connecting bolt passes through the through hole on the connecting wing and is tightened by a nut; Jagged card slots are densely arranged on the surface of the reverse T-shaped installation groove that is clamped with the first card and the second card.

[0007] In the above structure, the width of the first card is adapted to the width of the reverse T-shaped installation groove, and the height of the clamping opening is adapted to the thickness of the connection part on the reverse T-shaped installation groove.

[0008] Preferably, the rubber bushing is an annular shape with an open top. The inner circle of the rubber bushing is an arc shape adapted to the outer shape of the pipeline, and the outer circle of the rubber bushing is adapted to the shape of the space enclosed by the first card, the second card, and the chute.

[0009] Preferably, a plurality of U-shaped cards are installed on the chute.

[0010] Preferably, a plurality of stud bolts are fixed on the bottom surface of the chute.

[0011] Preferably, the serrated card slot is a trapezoidal slot.

[0012] A construction method for pre-buried chute piping in a tunnel according to the present invention includes the following steps: Step 1, construction preparation: Conduct drawing review, technical disclosure, and organize the preparation of construction materials and equipment. Check the stability of the chutes pre-buried in the lining segments, and check that the construction materials and tools meet the design requirements; Step 2, surveying and setting out: Use a total station and a level to conduct precise measurement and setting out in the tunnel, and mark the installation positions and elevations of one or more U-shaped cards on each chute where pipelines need to be installed; Step 3, installing U-shaped cards: Install the corresponding number of U-shaped cards in the chute and adjust the position of each U-shaped card; Step 4, piping installation: Install the pipeline into the corresponding U-shaped card, tighten the nuts on the connecting bolts, make the U-shaped card firmly clamp the pipeline, and check the position accuracy and straightness of the pipeline; Step 5, inspection and acceptance: Check and accept the installation quality of the chute, U-shaped card, and pipeline; Step 6, testing: Conduct water or air ventilation testing on the installed pipeline to detect whether there is leakage, displacement, and the stability of the overall structure of the pipeline.

[0013] Further, in the step 3, the method for installing the U-shaped card in the chute is as follows: First, place both the first card and the second card along the length direction into the inverted T-shaped installation groove at the marked installation position, then rotate the first card and the second card so that the first card and the second card face each other. Insert the rubber bushing into the space enclosed by the first card, the second card, and the chute. Pass the connecting bolt through the through hole on the connecting wing and screw on the nut for pre-tightening. The rubber bushing props up the first card and the second card, so that the bottoms of the first card and the second card are clamped into the serrated card slot of the inverted T-shaped installation groove. After checking the position of the U-shaped card, the installation positioning is completed.

[0014] Further, in the fourth step, the method of installing the pipeline into the U-shaped clamp is as follows: Pass one end of the pipeline through the rubber bushing. After reaching the position, tighten the connecting bolts; or: Remove the connecting bolts, separate the first card and the second card, then place the middle part of the pipeline through the top opening of the rubber bushing, and then install the connecting bolts and tighten the nuts.

[0015] Further, in the fourth step, if the pipeline has an interface, seal the interface of the pipeline.

[0016] Further, in the first step, record and file the inspection results of the construction materials and equipment; In the second step, record and file the elevation and calibrated installation position data of each U-shaped clamp; In the third step, record and file the position data of each U-shaped clamp that has been installed and positioned; In the fourth step, record and file the position data of each installed pipeline; In the fifth step, record and file the inspection results; In the sixth step, record and file the test results.

[0017] Compared with the prior art, the present invention has the following beneficial effects.

[0018] 1. In the present invention, the bottom of the U-shaped clamp is embedded in the serrated card slot of the chute, with a firm connection and a low requirement for the tightening force of the bolts. After the pipeline is inserted, the U-shaped clamp is stably propped up, making the bottom of the U-shaped clamp firmly stuck in the serrated card slot of the chute. Compared with some pipe clamps positioned by the tightening force of nuts, it is more stable and avoids the situation of pipeline displacement caused by the loosening of the U-shaped clamp.

[0019] 2. In the present invention, the first card and the second card in the U-shaped clamp are completely separable. During pipeline installation, either one end of the pipeline can pass through the U-shaped clamp, or the first card and the second card can be completely separated first, then the middle part of the pipeline can be placed through the top opening of the rubber bushing, and then the first card and the second card are connected and tightened with connecting bolts. In this way, the structure of the present invention has diverse usage methods and a wide range of applications.

[0020] 3. In the construction method of the present invention, total station and level are used for precise measurement and elevation, and the measurement results are more accurate. Inspections and recording and archiving of relevant data are carried out at each key node, reducing errors and rework during construction, improving the overall construction efficiency and project quality, and ensuring the long-term stable operation of the pipeline system. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required in the embodiments.

[0022] Figure 1 It is a schematic structural diagram of the chute U-shaped card device in the present invention.

[0023] Figure 2 It is Figure 1 the sectional view taken along A-A in

[0024] Figure 3 It is Figure 1 the top view of

[0025] Figure 4 It is a schematic structural diagram of the U-shaped card in the present invention.

[0026] Figure 5 It is a flow chart of the construction method in the present invention.

[0027] In the figure: 1 is the chute, 11 is the inverted T-shaped installation groove, 12 is the serrated card slot, 13 is the stud, 2 is the U-shaped card, 21 is the first card, 22 is the second card, 23 is the rubber bushing, 24 is the connecting bolt, 25 is the connecting wing, 26 is the bayonet, and 3 is the pipeline. Specific embodiments

[0028] The following will clearly and completely describe the technical solutions in the present invention in conjunction with the drawings. Obviously, the described embodiments are some, rather than all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the scope protected by the present invention.

[0029] The present invention provides the following embodiments.

[0030] As Figure 1 , Figure 2 , Figure 3 , Figure 4 shown, a chute U-shaped card device of the present invention includes a chute 1 and a U-shaped card 2. An inverted T-shaped installation groove 11 is opened along the length direction on the top surface of the chute 1. The U-shaped card 2 includes a first card 21, a second card 22, a rubber bushing 23, and a connecting bolt 24. The upper parts of the first card 21 and the second card 22 are both arc-shaped, and the tops are both bent to form connecting wings 25. Through holes are opened on the connecting wings 25. Notches are opened on both sides of the lower parts of the first card 21 and the second card 22 as bayonets 26. The first card 21 and the second card 22 are arranged oppositely, and the bottom is clamped in the inverted T-shaped installation groove 11 through the bayonets 26. The rubber bushing 23 is placed in the space surrounded by the first card 21, the second card 22, and the chute 1. The connecting bolt 24 passes through the through hole on the connecting wing 25 and is fastened by a nut; The surface of the inverted T-shaped installation groove 11 that is clamped with the first card 21 and the second card 22 is densely distributed with serrated card slots 12.

[0031] In the above structure, the width of the first card 21 is adapted to the width of the inverted T-shaped installation groove 11, and the height of the bayonet 26 is adapted to the thickness of the connection part on the inverted T-shaped installation groove 11.

[0032] As Figure 2 shown, the rubber bushing 23 is an annular shape with an open top. The inner circle of the rubber bushing 23 is an arc shape adapted to the outer shape of the pipeline 3, and the outer circle of the rubber bushing 23 is adapted to the space shape surrounded by the first card 21, the second card 22, and the sliding groove 1. In this way, the pipeline 3 can be fixed more firmly.

[0033] As Figure 1 shown, a plurality of U-shaped cards 2 are installed on the sliding groove 1, and the number of U-shaped cards 2 on the sliding groove 1 is the same as the number of pipelines 3 to be installed.

[0034] As Figure 2 、 Figure 3 shown, a plurality of stud bolts 13 are fixed on the bottom surface of the sliding groove 1. When the sliding groove 1 is embedded in the lining segment, the stud bolts 13 can make the combination of the two more tightly and firmly.

[0035] As Figure 2 shown, the serrated card slot 12 is a trapezoidal slot, which is convenient for the bottom of the first card 21 and the second card 22 to be inserted.

[0036] As Figure 5 shown, a construction method for pre-buried sliding grooves for pipeline installation in a tunnel according to the present invention includes the following steps: Step 1, construction preparation: conduct drawing review, technical disclosure, and organize the preparation of construction materials and equipment. Check the stability of the sliding groove 1 embedded in the lining segment, and check that the construction materials and tools meet the design requirements.

[0037] In the construction preparation stage, first, the project team needs to organize professional engineers and technicians of each specialty to conduct a detailed review of the construction drawings. During the review process, it should be carefully examined whether the coordination between the drawings of each specialty is reasonable, especially the relationship between the electrical, pipeline 3, and structural drawings. When reviewing the drawings, the construction difficulties and key nodes should also be identified, and corresponding construction plans and emergency plans should be formulated. A detailed drawing review and construction plan formulation can effectively reduce the problems that occur during the construction process, avoid rework and construction delays caused by unreasonable design or imperfect construction plans, improve the safety and controllability of the construction, and ensure the smooth progress of the entire construction process.

[0038] Secondly, it is necessary to conduct technical disclosure to the construction personnel to ensure that all construction personnel are familiar with the construction method and quality and safety requirements. Before the formal construction, the project manager or technical person in charge needs to organize a technical disclosure meeting for the construction team, explain each step of the construction method in detail, illustrate the technical key points and quality standards of each process in combination with the construction drawings, and also emphasize the safety precautions during the construction process, such as the operation specifications of equipment, the safety protection for tunnel operations, and the precautions for material handling. It is also necessary to conduct simulation drills for common problems and special situations during the construction. Through technical disclosure, all construction personnel can accurately understand and master the construction technology and quality standards, thus reducing construction errors and safety accidents caused by improper operation.

[0039] Then, it is necessary to check and confirm that the specifications, models, and quantities of the materials and equipment required for construction meet the design requirements and complete the acceptance records. During the acceptance process, first, compare with the construction drawings and material list to check whether the specifications, models, and quantities of the materials and equipment are consistent with the design requirements. For the chute 1, U-shaped clamp 2, pipe 3 and its fittings, special attention should be paid to whether their materials, dimensions, and load-bearing capacities meet the requirements. Strict acceptance work for materials and equipment can ensure that all materials and equipment used in the construction meet the design and quality requirements, avoid construction accidents and quality hazards caused by material and equipment quality problems. At the same time, the acceptance records not only provide a basis for later quality traceability but also improve the transparency and traceability of the entire project management, providing a reliable guarantee for construction quality and progress.

[0040] In summary, the construction preparation work can ensure that the materials and equipment during the construction process are complete and in good condition, thus avoiding construction delays and quality problems caused by insufficient preparation. The drawing review and technical disclosure enable the construction personnel to have a clear understanding of the construction technology and quality standards, reduce construction errors caused by improper understanding, and improve the overall construction efficiency and quality.

[0041] Step 2: Measurement and layout: Use a total station and a level to conduct precise measurement and layout in the tunnel, and mark the installation positions and elevations of one or more U-shaped clamps 2 on each chute 1 where the pipe 3 needs to be installed.

[0042] Using a total station and a level for measurement and layout can ensure that the installation positions and heights of the U-shaped clamps 2 are accurate and error-free, providing a reliable positioning basis for the subsequent installation of the U-shaped clamps 2 and pipe laying work. The accuracy of this process plays a crucial role in the neatness of pipeline layout and construction efficiency, and can effectively avoid construction rework and quality problems caused by position deviation.

[0043] Precisely measuring and setting out lines inside the tunnel can effectively ensure that the installation path of pipeline 3 is completely consistent with the design drawings, providing reliable guidance for the subsequent precise installation and fixation of pipeline 3, and avoiding damage or poor operation of pipeline 3 caused by irregularities such as pipeline bending and twisting, thereby improving the overall reliability and safety of the pipeline system.

[0044] Step Three: Install U-shaped clips 2: Install the corresponding number of U-shaped clips 2 into the chute 1, and adjust the position of each U-shaped clip 2 to ensure uniform spacing and firm fixation.

[0045] In the present invention, the connection method between the U-shaped clip 2 and the inverted T-shaped installation groove 11 is firm and reliable, avoiding the situation where the U-shaped clip 2 loosens and shifts within the chute 1, thereby being able to support and fix the pipeline 3, preventing the pipeline 3 from displacing or falling off due to external forces (vibration or thermal expansion and contraction) during operation, ensuring the long-term stability and safety of the pipeline system. At the same time, the reasonable distribution of the U-shaped clips 2 can reduce the pressure of the self-weight of the pipeline 3 on the chute 1 and the tunnel structure, extending the service life of the pipeline system and the tunnel structure.

[0046] Step Four: Pipe installation: Install the pipeline 3 into the corresponding U-shaped clips 2, tighten the nuts on the connection bolts 24 to firmly clamp the pipeline 3 with the U-shaped clips 2, and check the position accuracy and straightness of the pipeline 3.

[0047] The position accuracy and straightness of the pipeline 3 can ensure that the pipeline 3 is laid straight along the tunnel structure without misalignment, inclination or bending, reducing the risk of damage and leakage of the pipeline 3 caused by the displacement or unevenness of the pipeline 3, thereby improving the overall reliability and safety of the pipeline system, and also facilitating the later maintenance and repair work.

[0048] The rubber bushings 23 provided in the U-shaped clips 2 can avoid the influence of external forces or vibrations on the pipeline 3, ensuring the safety and operation stability of the pipeline system.

[0049] Step Five: Inspection and acceptance: Inspect and accept the installation quality of the chute 1, U-shaped clips 2 and pipeline 3.

[0050] Through quality inspection and strict acceptance procedures, it can be ensured that the construction quality of the entire pipeline system meets the design specifications, avoiding system failures or safety accidents caused by construction defects.

[0051] Inspecting the installation quality of the chute 1 can effectively prevent problems such as deformation or structural failure of the chute 1 due to insufficient load-bearing or loosening during use, improving the safety and stability of the entire pipeline system, and providing guarantee for the long-term reliable operation of the subsequent pipeline system.

[0052] Inspecting the installation quality of the U-shaped clamps 2 and the pipes 3 can ensure that all the connections between the U-shaped clamps 2, the chute 1 and the pipes 3 are tight and firm, without looseness. The firm connection can effectively prevent the pipes 3 from displacement or detachment due to vibration or load changes during operation, improve the stability and safety of the pipe system, and ensure that the pipes 3 can remain stable and reliable during long-term operation.

[0053] Step Six, Testing: Conduct water or air ventilation tests on the installed pipes 3 to detect whether there are any leaks, displacements and the stability of the overall structure of the pipes 3.

[0054] By conducting pressure tests through air ventilation and tightness tests through water flow, potential problems can be discovered and solved in advance, avoiding leakage or structural instability during actual use, improving the safety and reliability of the pipe system, and providing guarantee for the long-term stable operation of the project.

[0055] In the third step, the method of installing the U-shaped clamp 2 in the chute 1 is as follows: First, place both the first card 21 and the second card 22 along the length direction into the inverted T-shaped installation groove 11 at the calibrated installation position, then rotate the first card 21 and the second card 22 so that the first card 21 and the second card 22 face each other. Insert a rubber bushing 23 into the space enclosed by the first card 21, the second card 22 and the chute 1. Pass the connecting bolt 24 through the through hole on the connecting wing 25 and tighten the nut preliminarily. The rubber bushing 23 props up the first card 21 and the second card 22, so that the bottoms of the first card 21 and the second card 22 are clamped into the serrated card slots 12 of the inverted T-shaped installation groove 11. After checking the position of the U-shaped clamp 2, the installation positioning is completed.

[0056] The installation method of the U-shaped clamp 2 in the present invention is simple and convenient, and the connection structure is stable and firm.

[0057] In the fourth step, the method of installing the pipe 3 into the U-shaped clamp 2 is as follows: Pass one end of the pipe 3 through the rubber bushing 23, and after it reaches the position, tighten the connecting bolt 24; or: Remove the connecting bolt 24, separate the first card 21 and the second card 22, then place the middle part of the pipe 3 into the top opening of the rubber bushing 23, and then install the connecting bolt 24 and tighten the nut.

[0058] In the fourth step, if the pipe 3 has an interface, seal the interface of the pipe 3 to prevent leakage or looseness at the connection of the pipe 3. In this way, not only can safety accidents caused by medium leakage be avoided, but also external moisture or impurities can be prevented from entering the pipe system, ensuring the purity of the medium inside the pipe 3 and the normal operation of the system, and extending the service life of the pipe system.

[0059] In the present invention, it is necessary to record and archive the data of key nodes, including: In the first step, record and file the inspection results of construction materials and equipment; In the second step, record and file the elevation of each U-shaped clamp 2 and the data of the calibrated installation position; In the third step, record and file the position data of each U-shaped clamp 2 that has been installed and positioned; In the fourth step, record and file the position data of each installed pipeline 3; In the fifth step, record and file the inspection results; In the sixth step, record and file the test results.

[0060] Recording and archiving the key node data generated during the construction process can provide basic data for subsequent project management and maintenance work. This can not only quickly locate the causes and propose corrective solutions when problems occur, but also provide detailed reference information for the operation and maintenance team after the project is completed. The reliability and traceability of data archiving improve the transparency of project management, reduce the uncertainty during the construction process, decrease the difficulty of rework and post-maintenance, and enhance the construction quality and efficiency. Automated data collection and intelligent archiving technologies can also be introduced to significantly improve the efficiency and accuracy of construction management, ensure the accurate recording of each key node data, and through the analysis of data by the intelligent system and automatic report generation, the construction team can monitor the construction progress and quality in real time, detect potential problems in a timely manner and make rapid adjustments.

[0061] In addition, according to the above data records and quality inspection results, after generating a detailed construction quality and efficiency report, associate the report with the BIM model, which can be used for reference and optimization of subsequent similar projects, and can also achieve visual management of construction quality and efficiency. This method can not only summarize the quality control experience and efficiency improvement strategies of each construction project, but also provide reference data and optimization suggestions for subsequent similar projects. Through data-driven management, it can better guide construction decisions, reduce quality risks, improve construction efficiency, and ultimately enhance the overall project management level and construction quality.

[0062] After construction is completed, smart contract technology can be used to organize and archive records, test results, and acceptance reports from all construction phases, ensuring data integrity and immutability. At project settlement, the smart contract automatically verifies the completion of contract terms based on the archived data and executes relevant payments. This approach not only improves data management efficiency but also provides authentic and reliable construction records and quality certifications at project settlement, providing strong guarantees for contract performance by both parties. The linkage of smart contracts with archived data enables automated data verification and management, minimizing the risks of human error and data tampering. Furthermore, the automated verification of contract terms and payment execution through smart contract technology improves the efficiency and accuracy of project settlements, avoiding the human errors and disputes inherent in traditional settlement processes. This reduces manual approval and operational steps, shortens capital turnover time, and helps improve the transparency and efficiency of project fund management.

[0063] The foregoing description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be readily conceived by a person skilled in the art within the technical scope disclosed herein should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A chute U-shaped clamp device, comprising a chute (1) and a U-shaped clamp (2). A reverse T-shaped installation groove (11) is formed in the top surface of the chute (1) along the length direction. It is characterized in that: The U-shaped clamp (2) includes a first card (21), a second card (22), a rubber bushing (23) and a connecting bolt (24); The upper parts of the first card (21) and the second card (22) are both arc-shaped, and the tops are both bent to form connecting wings (25). Through holes are formed in the connecting wings (25). Notches are formed on both sides of the lower parts of the first card (21) and the second card (22) as clamping openings (26). The first card (21) and the second card (22) are arranged oppositely, and the bottom is clamped in the inverted T-shaped installation groove (11) through the clamping openings (26). The rubber bushing (23) is placed in the space surrounded by the first card (21), the second card (22) and the chute (1). The connecting bolt (24) passes through the through hole in the connecting wing (25) and is fastened by a nut; Jagged card slots (12) are densely arranged on the surface of the inverted T-shaped installation groove (11) that is clamped with the first card (21) and the second card (22).

2. The chute U-shaped clamping device according to claim 1, characterized in that: The rubber bushing (23) is an annular shape with an open top.

3. A chute U-shaped clamping device according to claim 1 or 2, characterized in that: A plurality of U-shaped clamps (2) are installed on the chute (1).

4. A chute U-shaped clamping device according to claim 1 or 2, characterized in that: A plurality of stud bolts (13) are fixed on the bottom surface of the chute (1).

5. A chute U-shaped clamping device according to claim 1 or 2, characterized in that: The jagged card slot (12) is a trapezoidal slot.

6. A construction method for pre-buried chute piping in a tunnel, characterized in that It includes the following steps: Step 1, construction preparation: Conduct drawing review, technical disclosure, and organize the preparation of construction materials and equipment. Check the stability of the chute (1) embedded in the lining segment, and check that the construction materials and tools meet the design requirements; Step 2, measurement and layout: Use a total station and a level to conduct precise measurement and layout in the tunnel, and mark the installation positions and elevations of one or more U-shaped clamps (2) on each chute (1) where the pipeline (3) needs to be installed; Step 3, install the U-shaped clamp (2): Install the corresponding number of U-shaped clamps (2) in the chute (1), and adjust the positions of each U-shaped clamp (2); Step 4, pipe installation: Install the pipeline (3) into the corresponding U-shaped clamp (2), tighten the nut on the connecting bolt (24) to firmly clamp the pipeline (3) with the U-shaped clamp (2), and check the position accuracy and straightness of the pipeline (3); Step 5, inspection and acceptance: Check and accept the installation quality of the chute (1), the U-shaped clamp (2) and the pipeline (3); Step 6, testing: Conduct water or air ventilation testing on the installed pipeline (3) to detect whether there is leakage, displacement and the stability of the overall structure of the pipeline (3).

7. A construction method for pre-buried chute piping in a tunnel according to claim 6, characterized in that: In the third step, the method of installing the U-shaped clamp (2) in the chute (1) is as follows: First, place the first card (21) and the second card (22) along the length direction into the inverted T-shaped installation groove (11) at the calibrated installation position, then rotate the first card (21) and the second card (22) so that the first card (21) and the second card (22) face each other. Insert a rubber bushing (23) into the space enclosed by the first card (21), the second card (22) and the chute (1). Pass the connecting bolt (24) through the through hole on the connecting wing (25) and tighten the nut for pre-tightening. The rubber bushing (23) props up the first card (21) and the second card (22) so that the bottoms of the first card (21) and the second card (22) are clamped into the serrated card slots (12) of the inverted T-shaped installation groove (11). After checking the position of the U-shaped clamp (2), the installation positioning is completed.

8. A construction method for pre-buried chute piping in a tunnel according to claim 7, characterized in that: In the fourth step, the method of installing the pipeline (3) into the U-shaped clamp (2) is as follows: Pass one end of the pipeline (3) through the rubber bushing (23). After it reaches the position, tighten the connecting bolt (24). Or: Remove the connecting bolt (24), separate the first card (21) and the second card (22), then place the middle part of the pipeline (3) into the top opening of the rubber bushing (23), and then install the connecting bolt (24) and tighten the nut.

9. A construction method for pre-buried chute pipe in a tunnel according to claim 6 or 8, characterized in that: In the fourth step, if the pipeline (3) has an interface, seal the interface of the pipeline (3).

10. A construction method for pre-embedded sliding grooves and pipe laying in a tunnel according to claim 6, characterized in that: In the first step, record and file the inspection results of the construction materials and equipment. In the second step, record and file the elevation data and the calibrated installation position data of each U-shaped clamp (2). In the third step, record and file the position data of each U-shaped clamp (2) with good installation positioning. In the fourth step, record and file the position data of each installed pipeline (3). In the fifth step, record and file the inspection results. In the sixth step, record and file the test results.

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