Urban underground comprehensive pipe gallery integrated embedded support and construction method

Abstract

The invention discloses an urban underground comprehensive pipe gallery integrated embedded support and a construction method, and belongs to the technical field of urban comprehensive pipe gallery support construction. The electric power pipe gallery support comprises electric power pipe gallery support embedded channel steel embedded in a concrete structure, an embedded support connecting piece welded to the electric power pipe gallery support embedded channel steel, a support connecting main piece connected with the embedded support connecting piece, and pipe gallery support supporting legs connected through pipe gallery support connecting openings in the side edges of the support connecting main piece. During construction, the process comprises the steps of construction preparation, trench excavation, trench acceptance, cushion layer construction, steel bar binding, embedded part installation, formwork installation, concrete pouring, support leg installation, pipe gallery sealing and waterproofing, follow-up maintenance and the like. According to the method, communication pipe installation and cable support pre-burying can be conducted synchronously during construction of the pipe gallery main body structure, the mode is good in integrity, the integrity and stability of the pipe gallery structure can be ensured through cast-in-place construction, joints are reduced, and therefore the durability and the bearing capacity of the pipe gallery are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of urban integrated pipe gallery support construction, and in particular to an integrated pre-buried support for an urban underground integrated pipe gallery and a construction method thereof. Background Art

[0002] The underground integrated pipe gallery construction technology is a construction technology that has gradually emerged and been widely used in the construction of urban integrated pipe galleries in recent years. It aims to improve the construction efficiency and quality of power supports through standardized and prefabricated construction methods, while ensuring the safety of the construction process. The promotion and application of this technology is of great significance for optimizing urban underground space resources and promoting the construction of power facilities.

[0003] At present, in the field of cable support construction of urban integrated pipe corridors, most of them adopt traditional step-by-step construction. This method has low construction efficiency and high technical requirements. Punching installation requires precise measurement and positioning, and has high technical requirements for construction personnel. The operation process is complicated. From measurement, marking to punching and installation of brackets, each step requires fine operation, which increases construction time and labor intensity. The punching process may cause waste of materials, such as repeated construction caused by inaccurate punching. Professional punching equipment and tools are required, which increases construction costs. Experienced construction personnel are required to operate, which increases labor costs. Sparks and vibrations are also easily generated during the high-risk operation punching process, posing a potential threat to safety in the pipe corridor. Traditional punching installation may damage the integrity of the pipe corridor structure and affect its bearing capacity and stability. Affecting later maintenance The holes formed after punching may become the starting point for future corrosion and damage, increasing the difficulty of later maintenance. At present, the acceptance standards for punching installation are not clear enough, making it difficult to ensure quality. Summary of the invention

[0004] The purpose of the present invention is to provide an integrated pre-buried bracket and construction method for an urban underground comprehensive pipe gallery, which can simultaneously carry out the installation of communication pipes and the pre-buried cable brackets during the construction of the main structure of the pipe gallery, thereby ensuring the integrity and stability of the pipe gallery structure, reducing seams, and thus improving the durability and bearing capacity of the pipe gallery, so as to solve the shortcomings of the prior art.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] An integrated embedded bracket for an urban underground comprehensive pipe gallery comprises an embedded channel steel for an electric pipe gallery bracket embedded in a concrete structure, the side of the embedded channel steel for the electric pipe gallery bracket is connected with an embedded bracket connector, and a threaded head is provided at the end of the embedded bracket connector; the embedded channel steel for the electric pipe gallery bracket is connected to a bracket connecting main part through the embedded bracket connector arranged on the side, the bracket connecting main part is arranged on the outside of the concrete structure, and a threaded interface for the embedded bracket connector to pass through is provided on the back of the bracket connecting main part; the embedded bracket connector passes through the threaded interface of the bracket connecting main part and is locked and fixed by a nut and a threaded head; a pipe gallery bracket connecting port is provided on the side of the bracket connecting main part, and the bracket connecting main part is connected to the pipe gallery bracket leg through the pipe gallery bracket connecting port on the side, and the pipe gallery bracket leg is provided with a pipe gallery bracket connecting port that is docked with the bracket connecting main part, and is locked and fixed by passing bolts through the pipe gallery bracket connecting port.

[0007] Furthermore, in the concrete structure, a PVC-U communication pipe is preset on one side of the embedded channel steel of the power pipe gallery support, and an outer water supply pipe of the power pipe gallery is provided on the outer side of the concrete structure.

[0008] Furthermore, the embedded channel steel of the power pipe gallery support is made of Q235B steel, and the embedded channel steel of the power pipe gallery support and the embedded support connector are fixed by welding.

[0009] Furthermore, the pipe gallery support legs are "L"-shaped steel structure rods with a slope at the tail end and a rectangular cross-section, and the ends are firmly connected to the embedded support connectors by bolts.

[0010] The present invention provides another technical solution: a construction method of an integrated pre-buried support for an urban underground comprehensive pipe gallery, comprising the following steps:

[0011] S1: Trench excavation: According to the design requirements, use the corresponding excavation equipment to excavate the foundation pit of the comprehensive pipeline corridor;

[0012] S2: Trench acceptance: Ensure that the size and depth of the foundation pit meet the design requirements, and take slope support measures to prevent collapse;

[0013] S3: Pad construction: foundation treatment is carried out at the bottom of the foundation pit, including laying of pad materials to provide a uniform bearing foundation;

[0014] S4: Rebar binding: Install the steel mesh on the foundation to ensure that the number, spacing and connection of the steel bars meet the design requirements, and then carry out the embedded bracket construction;

[0015] S5: Embedded parts installation: including the positioning of embedded channel steel of power pipe gallery support, the design of the size of embedded channel steel of power pipe gallery support and the fixing of embedded channel steel of power pipe gallery support;

[0016] S6: Template installation: Connect the embedded bracket connector and the embedded channel steel of the power corridor bracket by welding, complete the template mold, and use the threaded head and nut on the embedded bracket connector to fix the bracket connection main part;

[0017] S7: Concrete pouring: After the straightness of the formwork, steel bar protection layer and embedded channel steel of the power corridor support is measured and determined to be in compliance with the design and specifications, concrete pouring is carried out within the range of the bottom plate and the side wall 0.5m above the bottom plate;

[0018] S8: Installation of support legs: Install the prepared pipe gallery support legs on the support connection main parts through bolts and pipe gallery support connection ports according to the design requirements, and use a level and hanging line to ensure the horizontality and verticality of the pipe gallery support legs;

[0019] S9: Pipe gallery sealing and waterproofing: Use waterproof paint to apply waterproof coating on the outside;

[0020] S10: Subsequent maintenance: including regular inspection and replacement of parts.

[0021] Furthermore, the positioning method of the embedded channel steel of the power pipe gallery support in S5 is as follows:

[0022] Confirm the design drawing: After the reinforcement of the corridor wall is tied, determine the pile number and elevation of the embedded channel steel of each power corridor support according to the design drawing;

[0023] Measurement and layout: arrange surveying personnel to carry out measurement and layout, and mark the specific position of each power corridor support embedded channel steel and its location as well as the height relative to the bottom plate.

[0024] Furthermore, the design method of the embedded channel steel size of the power pipe gallery support in S5 is as follows:

[0025] Set up according to drawings: According to the cross-sectional dimensions of the corridor, the location, type and quantity of embedded parts in the drawings, embedded parts shall be set up;

[0026] Edge distance: The edge distance between the embedded channel steel of the power pipe gallery support and the concrete wall is determined according to the design requirements. The deviation between the axis and the side wall axis is not more than 10.0mm in front and back, and the left and right deviation is not more than 20.0mm;

[0027] Position inspection: After checking the position of the embedded channel steel of the power corridor support, the quality inspection personnel will check and record it.

[0028] Furthermore, the fixing method of the embedded channel steel of the power pipe gallery support in S5 is as follows:

[0029] Installation adjustment: According to the on-site construction conditions, after installing the bottom plate and side wall reinforcement, install the embedded channel steel of the power pipe gallery support;

[0030] Position marking: according to the marked embedded channel steel position of the power pipe gallery support, fix the embedded channel steel of the power pipe gallery support to the main steel bar of the side wall of the pipe gallery by spot welding;

[0031] Straightness measurement: Use a plumb line to measure the straightness of the embedded channel steel of the power corridor support during installation. When the embedded channel steel of the power corridor support meets the design and specification requirements, proceed with template construction.

[0032] Furthermore, the subsequent maintenance contents in S10 are as follows:

[0033] Inspection and maintenance: After the bracket is installed, regular inspection and maintenance should be carried out to check whether the bracket's connection parts, bolts and gaskets are loose, and whether the supporting legs have sufficient load-bearing capacity;

[0034] Replace parts: If you find any problems or damage to the bracket, replace the corresponding parts or the entire bracket in time.

[0035] Compared with the prior art, the present invention has the following beneficial effects:

[0036] The integrated pre-buried bracket and construction method of the urban underground comprehensive pipe gallery of the present invention can simultaneously install the communication pipe and pre-buried the cable bracket during the construction of the main structure of the pipe gallery, which not only simplifies the construction process of the urban underground comprehensive pipe gallery, but also improves the installation efficiency and safety of the equipment in the pipe gallery. Through the integrated construction of the pre-buried bracket, many problems in the traditional bracket installation method can be effectively avoided, such as unreliable equipment installation and difficult maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 This is a schematic diagram of the installation structure of the embedded bracket of the present invention;

[0038] Figure 2 This is a schematic diagram of the overall structure of the embedded bracket of the present invention;

[0039] Figure 3 This is a structural diagram of the main parts of the bracket connection of the present invention;

[0040] Figure 4 This is a structural diagram of the pipe gallery support legs of the present invention;

[0041] Figure 5 This is a structural diagram of the embedded channel steel of the power pipe gallery support of the present invention;

[0042] Figure 6 It is a flow chart of the construction method of the present invention.

[0043] In the figure: 1. Pipe gallery support connection port; 2. Pipe gallery support legs; 3. Support connection main parts; 4. Pre-buried channel steel of power pipe gallery support; 5. Pre-buried support connection parts; 6. Threaded interface; 7. PVC-U communication pipe; 8. Water supply pipe outside the power pipe gallery; 9. Threaded head. DETAILED DESCRIPTION

[0044] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0045] See also Figure 1-5 In an embodiment of the present invention, an integrated embedded bracket of an urban underground comprehensive pipe gallery is provided, including an embedded channel steel 4 of a power pipe gallery bracket embedded in a concrete structure, a PVC-U communication pipe 7 is preset on one side of the embedded channel steel 4 of the power pipe gallery bracket in the concrete structure, an outer water supply pipe 8 of the power pipe gallery is arranged on the outside of the concrete structure, and an embedded bracket connector 5 is connected to the side of the embedded channel steel 4 of the power pipe gallery bracket, and the embedded channel steel 4 of the power pipe gallery bracket and the embedded bracket connector 5 are fixed by welding; a threaded head 9 is provided at the end of the embedded bracket connector 5; the embedded channel steel 4 of the power pipe gallery bracket is connected to the bracket connecting main part 3 through the embedded bracket connecting part 5 arranged on the side, and the bracket connecting main part 3 is arranged on the outside of the concrete structure, and the back of the bracket connecting main part 3 A threaded interface 6 is provided for the embedded bracket connector 5 to pass through; the embedded bracket connector 5 passes through the threaded interface 6 of the bracket connection main part 3 and is locked and fixed by a nut and a threaded head 9; a corridor bracket connection port 1 is provided on the side of the bracket connection main part 3, and the bracket connection main part 3 is connected to the corridor bracket leg 2 through the corridor bracket connection port 1 on the side, and the corridor bracket leg 2 is provided with a corridor bracket connection port 1 that is docked with the bracket connection main part 3, and is locked and fixed by bolts passing through the corridor bracket connection port 1. The corridor bracket connection port 1 serves as a connector connecting the corridor bracket leg 2 with the bracket connection main part 3. Its main function is to connect the entire power corridor bracket system. It provides the necessary stability to ensure the stability of the connection between the embedded parts of the bracket system and the bracket.

[0046] The embedded channel steel 4 of the power pipe gallery support in the embodiment of the present invention is made of Q235B steel. The presence of the embedded channel steel 4 of the power pipe gallery support can enhance the stability and firmness of the entire structure. Through the pre-installed steel plates and anchor bars, the embedded channel steel 4 of the power pipe gallery support can improve the stability of the external project and can also assist in precise measurement and positioning.

[0047] In the above embodiment, the pipeline corridor support leg 2 is an "L"-shaped steel structure rod with a slope at the tail end, and the cross-section is rectangular. The end is firmly connected to the embedded support connector 5 by bolts. The main function is to bear the weight of the pipeline, ensure that the pipeline can be stably and safely fixed in the specified position, and also play a role in earthquake protection, especially in the horizontal load bearing of the pipeline, which can reduce the impact of earthquake effects on the pipeline. By setting up earthquake-resistant supports and hangers, the dynamic characteristics of the pipeline system can be changed, and its earthquake resistance can be enhanced. It can prevent the pipeline from having a large lateral swing, and avoid damage to adjacent equipment and falling off.

[0048] In the above embodiment, the bracket connection main part 3 is mainly used to bear the weight of the pipeline to ensure that the pipeline can be stably and safely fixed in the specified position. This load-bearing bracket system is a support system with gravity as the primary load. Earthquake protection: The bracket connection main part 3 in the pipeline corridor also plays a role in earthquake protection, especially in bearing the load in the horizontal direction of the pipeline, which can reduce the impact of earthquake effects on the pipeline. By setting up earthquake-resistant supports and hangers, the dynamic characteristics of the pipeline system can be changed and its earthquake resistance can be enhanced. In addition to support, the pipeline corridor bracket connection main part 3 can also play a guiding role for the pipeline, helping the pipeline to be arranged according to a predetermined path.

[0049] In the above embodiment, the embedded bracket connector 5 can be used to connect various structural members, providing a connection point for the subsequent fixing process, for example, it can be used to fix the foot bolts to ensure the correct installation and stable fixation of the equipment or structure.

[0050] The main function of the threaded interface 6 and the threaded head 9 in the embodiment of the present invention is to realize a detachable fixed connection. The overall structure has the advantages of being simple, reliable in connection, and convenient for assembly and disassembly. Through the threaded interface 6, two or more parts can be tightly connected together, and subsequent disassembly and maintenance are convenient.

[0051] like Figure 6 As shown, in order to further better explain the embodiment of the present invention, a construction method of an integrated pre-buried bracket of an urban underground comprehensive pipe gallery is also provided. Before starting the construction, a series of preparatory work needs to be carried out, including site leveling, measurement and setting out, and determining the excavation line of the foundation pit of the comprehensive pipe gallery, etc., as follows:

[0052] S1: Trench excavation: According to the design requirements, use the corresponding excavation equipment to excavate the foundation pit of the comprehensive pipeline corridor;

[0053] S2: Trench acceptance: Ensure that the size and depth of the foundation pit meet the design requirements, and take slope support measures to prevent collapse;

[0054] S3: Pad construction: foundation treatment is carried out at the bottom of the foundation pit, including laying of pad materials to provide a uniform bearing foundation;

[0055] S4: Rebar binding: Install the steel mesh on the foundation to ensure that the number, spacing and connection of the steel bars meet the design requirements, and then carry out the embedded bracket construction;

[0056] S5: Embedded parts installation: including positioning of embedded channel steel 4 of power pipe gallery support, design of size of embedded channel steel 4 of power pipe gallery support and fixing of embedded channel steel 4 of power pipe gallery support;

[0057] Among them, the positioning method of the embedded channel steel 4 of the power pipe gallery support is as follows:

[0058] Confirm the design drawing: After the reinforcement of the corridor wall is tied, determine the pile number and elevation of the embedded channel steel 4 of each power corridor support according to the design drawing;

[0059] Measurement and layout: arrange measurement personnel to carry out measurement and layout, and mark the specific position of each power corridor support embedded channel steel 4 and its location and the height corresponding to the bottom plate.

[0060] Secondly, the design method of the 4-dimension embedded channel steel of the power pipe gallery support is as follows:

[0061] Set up according to drawings: According to the cross-sectional dimensions of the corridor, the location, type and quantity of embedded parts in the drawings, embedded parts shall be set up;

[0062] Edge distance: The edge distance between the embedded channel steel 4 of the power pipe gallery support and the concrete wall is determined according to the design requirements. The deviation between the axis and the side wall axis is not more than 10.0mm in front and back, and the left and right deviation is not more than 20.0mm;

[0063] Position inspection: After checking the position of the embedded channel steel 4 of the power corridor support, the quality inspection personnel will inspect and record it.

[0064] In addition, the fixing method of the embedded channel steel 4 of the power pipe gallery support is as follows:

[0065] Installation adjustment: according to the on-site construction conditions, after installing the bottom plate and side wall reinforcement, install the embedded channel steel 4 of the power corridor support;

[0066] Position marking: According to the marked position of the embedded channel steel 4 of the power pipe gallery support, fix the embedded channel steel 4 of the power pipe gallery support to the main reinforcement of the side wall of the pipe gallery by spot welding. Pay attention to the current during welding to prevent excessive current from damaging the embedded channel steel;

[0067] Straightness measurement: Use a plumb line to measure the straightness of the embedded channel steel 4 of the power corridor support during installation. When the embedded channel steel 4 of the power corridor support meets the design and specification requirements, the template construction shall be carried out.

[0068] S6: Formwork installation: connect the embedded bracket connector 5 and the embedded channel steel 4 of the power corridor bracket by welding, complete the formwork mold, and use the threaded head 9 and nut on the embedded bracket connector 5 to fix the bracket connecting main part 3; this step is used to enhance the structural stability, which can effectively improve the overall stability and tensile strength of the building; facilitate construction: make installation and disassembly more convenient, and speed up the construction speed; improve construction quality: using this method can ensure the accurate positioning and stability of the formwork, thereby improving the quality of concrete pouring; economical and affordable: this embedded bracket connector 5 can be used for the installation of the bracket legs later, reducing construction costs.

[0069] S7: Concrete pouring: After the straightness of the formwork, steel bar protection layer and embedded channel steel 4 of the power corridor support is measured and determined to be in compliance with the design and specifications, concrete pouring is carried out within the range of the bottom plate and the side wall 0.5m above the bottom plate; subsequent concrete protection is carried out: when pouring and tamping concrete, attention should be paid to protecting the embedded parts;

[0070] S8: Installation of support legs: First, the production of support legs: According to the design drawings, support legs that meet the specifications are produced. The legs are generally made of channel steel or angle steel, and their specifications and lengths are determined according to the design requirements. The produced corridor support legs 2 are then installed on the support connection main parts 3 through bolts and corridor support connection ports 1 according to the design requirements, and a spirit level and hanging line are used to ensure the horizontality and verticality of the corridor support legs 2; finally, after the corridor support legs 2 are installed, pay attention to the tightening force when installing the bolts to avoid over-tightening or over-loosening that affects the stability of the support.

[0071] S9: Pipe gallery sealing and waterproofing: Use waterproof paint to apply waterproof coating on the outside;

[0072] S10: Subsequent maintenance: including inspection and maintenance: after the bracket is installed, regular inspection and maintenance should be carried out to check whether the bracket connection parts, bolts and gaskets are loose, and whether the load-bearing capacity of the legs is sufficient. Replacement of parts: if problems or damage are found in the bracket, replace the corresponding parts or the entire bracket in time. Pay attention to safety when replacing to avoid damage to the pipe gallery and surrounding facilities.

[0073] Through the above steps, the installation quality and effect of the embedded brackets of the power corridor can be ensured, providing guarantee for the safe operation of power equipment.

[0074] In summary, the present invention provides an integrated pre-buried bracket and construction method for an urban underground comprehensive pipe gallery, which can simultaneously install the communication pipe and pre-buried the cable bracket during the construction of the main structure of the pipe gallery. This method has good integrity: cast-in-place construction can ensure the integrity and stability of the pipe gallery structure, reduce joints, and thus improve the durability and bearing capacity of the pipe gallery. The specific advantages are as follows:

[0075] High construction efficiency: The integrated construction method can reduce the construction period, avoid repeated excavation and repair, and save manpower and material costs. The embedded bracket does not require welding and drilling, is easy to disassemble and adjust, can be reused, and has minimal resource waste. The installation speed is 6-8 times that of traditional methods, which can improve work efficiency and shorten construction period.

[0076] Easy quality control: On-site pouring can monitor the quality of concrete and the pouring process in real time to ensure construction quality. The design is complete, all load-bearing components can achieve rigid matching, connection without displacement, precise positioning, and resistance to impact and vibration.

[0077] High space utilization: integrated construction can make full use of underground space, integrate various pipelines together, and reduce the occupation of ground facilities. Each discipline can share a hanger, fully utilize the space, and coordinate the layout of the pipelines of each discipline.

[0078] High safety: The integrated cast-in-place construction of the pipe gallery can reduce safety risks, such as reducing the risk of leakage and fire caused by pipeline damage. No electric welding or open flames are required during the construction of the pre-buried bracket, which will not pollute the environment.

[0079] Long service life: According to the use environment and customer needs, we provide materials with different processes, such as electro-galvanizing, hot-dip galvanizing and powder galvanizing coating, to extend the service life. The products are standard semi-finished products with clear model identification, and with standardized management, the waste and loss of materials and accessories can be reduced.

[0080] Pre-embedded parts do not need to wait until the concrete structure is fully built before drilling and installing brackets, which greatly shortens the construction period. The embedded parts are integrated with the pipe gallery structure to improve the safety of the main structure of the pipe gallery. Since the embedded parts are installed before the concrete is poured, the interference with the completed structure and the material and labor costs required for additional processes such as drilling and planting can be reduced, avoiding subsequent destructive construction such as drilling. This method facilitates the replacement and maintenance of pipelines or equipment in the future. The construction process of embedded parts includes quality inspections in multiple links, such as inspection, positioning, fixing and inspection after concrete pouring of embedded parts. These steps ensure the reliability of construction quality. The construction method of embedded brackets in urban underground comprehensive pipe galleries not only improves engineering efficiency, but also ensures the safety and reliability of the structure, and also provides convenience for future maintenance and upgrades.

[0081] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An integrated pre-buried bracket for an urban underground comprehensive pipe gallery, characterized in that: The invention comprises an embedded channel steel (4) for supporting an electric pipe gallery pre-buried in a concrete structure, wherein the side of the embedded channel steel (4) for supporting an electric pipe gallery is connected with an embedded support connecting piece (5), and the end of the embedded support connecting piece (5) is provided with a threaded head (9); the embedded channel steel (4) for supporting an electric pipe gallery is connected to a support connecting main part (3) through the embedded support connecting piece (5) provided on the side, the support connecting main part (3) is provided outside the concrete structure, and the back of the support connecting main part (3) is provided with a threaded connecting piece for the embedded support connecting piece (5) to pass through. The embedded bracket connecting piece (5) passes through the threaded interface (6) of the bracket connecting main piece (3) and is locked and fixed by a nut and a threaded head (9); a pipe gallery bracket connecting opening (1) is provided on the side of the bracket connecting main piece (3); the bracket connecting main piece (3) is connected to the pipe gallery bracket leg (2) through the pipe gallery bracket connecting opening (1) on the side; the pipe gallery bracket leg (2) is provided with a pipe gallery bracket connecting opening (1) that is connected to the bracket connecting main piece (3), and is locked and fixed by bolts passing through the pipe gallery bracket connecting opening (1).

2. The integrated pre-buried bracket for an urban underground comprehensive pipe gallery according to claim 1, characterized in that: In the concrete structure, a PVC-U communication pipe (7) is preset on one side of the embedded channel steel (4) of the power pipe gallery support, and an outer water supply pipe (8) for the power pipe gallery is arranged on the outer side of the concrete structure.

3. The integrated pre-buried bracket for an urban underground comprehensive pipe gallery according to claim 1, characterized in that: The embedded channel steel (4) of the power pipe gallery support is made of Q235B steel, and the embedded channel steel (4) of the power pipe gallery support is fixed to the embedded support connector (5) by welding.

4. The integrated pre-buried support for an urban underground comprehensive pipe gallery according to claim 1, characterized in that: The pipe gallery support leg (2) is an "L"-shaped steel structure rod with a slope at the rear end and a rectangular cross section. The end is firmly connected to the embedded support connector (5) by bolts.

5. A construction method for the integrated pre-buried support of the urban underground comprehensive pipe gallery as claimed in claim 1, characterized in that: The following steps are involved: S1: Trench excavation: According to the design requirements, use the corresponding excavation equipment to excavate the foundation pit of the comprehensive pipeline corridor; S2: Trench acceptance: Ensure that the size and depth of the foundation pit meet the design requirements, and take slope support measures to prevent collapse; S3: Pad construction: foundation treatment is carried out at the bottom of the foundation pit, including laying of pad materials to provide a uniform bearing foundation; S4: Rebar binding: Install the steel mesh on the foundation to ensure that the number, spacing and connection of the steel bars meet the design requirements, and then carry out the embedded bracket construction; S5: Embedded parts installation: including positioning of the embedded channel steel (4) of the power pipe gallery support, designing the size of the embedded channel steel (4) of the power pipe gallery support, and fixing the embedded channel steel (4) of the power pipe gallery support; S6: Formwork installation: connect the embedded bracket connector (5) and the embedded channel steel (4) of the power corridor bracket by welding, complete the template assembly, and use the threaded head (9) and nut on the embedded bracket connector (5) to fix the bracket connection main part (3); S7: Concrete pouring: After the straightness of the formwork, steel bar protection layer and embedded channel steel (4) of the power corridor support is measured and determined to be in compliance with the design and specifications, concrete pouring is carried out within the bottom plate and the side wall area 0.5m above the bottom plate; S8: Installing the support legs: Install the prepared pipe gallery support legs (2) on the support connection main part (3) through bolts and the pipe gallery support connection port (1) according to the design requirements, and use a level and a hanging line to ensure the horizontality and verticality of the pipe gallery support legs (2); S9: Pipe gallery sealing and waterproofing: Use waterproof paint to apply waterproof coating on the outside; S10: Subsequent maintenance: including regular inspection and replacement of parts.

6. The construction method of the integrated pre-buried support for the urban underground comprehensive pipe gallery according to claim 5, characterized in that: The positioning method of the embedded channel steel (4) of the power pipe gallery support in S5 is as follows: Confirm the design drawing: After the reinforcement of the pipe gallery wall is tied, determine the pile number and elevation of the embedded channel steel (4) of each power pipe gallery support according to the design drawing; Measurement and layout: Arrange surveyors to carry out measurement and layout, and mark the specific positions of the embedded channel steel (4) of each power corridor support and its location and the height relative to the bottom plate.

7. The construction method of the integrated pre-buried support for the urban underground comprehensive pipe gallery according to claim 5, characterized in that: The design method for the size of the embedded channel steel (4) of the power pipe gallery support in S5 is as follows: Set up according to drawings: According to the cross-sectional dimensions of the corridor, the location, type and quantity of embedded parts in the drawings, embedded parts shall be set up; Edge distance: The edge distance between the embedded channel steel (4) of the power pipe gallery support and the concrete wall is determined according to the design requirements. The deviation between the axis and the side wall axis is not more than 10.0 mm in front and back, and not more than 20.0 mm in left and right. Position inspection: After checking the position of the embedded channel steel (4) of the power corridor support, the quality inspection personnel shall conduct inspection and record it.

8. The construction method of the integrated pre-buried support for the urban underground comprehensive pipe gallery according to claim 5, characterized in that: The method for fixing the embedded channel steel (4) of the power pipe gallery support in S5 is as follows: Installation and adjustment: After installing the bottom plate and side wall reinforcement according to the on-site construction conditions, install the embedded channel steel (4) of the power pipe gallery support; Position marking: according to the marked position of the embedded channel steel (4) of the power pipe gallery support, the embedded channel steel (4) of the power pipe gallery support is fixed to the main steel bar of the side wall of the pipe gallery by spot welding; Straightness measurement: During installation, a plumb line is used to measure the straightness of the pre-buried channel steel (4) of the power pipe gallery support. When the pre-buried pre-buried channel steel (4) of the power pipe gallery support meets the design and specification requirements, template construction is carried out.

9. The construction method of the integrated pre-buried support for the urban underground comprehensive pipe gallery according to claim 5, characterized in that: The subsequent maintenance contents in S10 are as follows: Inspection and maintenance: After the bracket is installed, regular inspection and maintenance should be carried out to check whether the bracket's connection parts, bolts and gaskets are loose, and whether the supporting legs have sufficient load-bearing capacity; Replace parts: If you find any problems or damage to the bracket, replace the corresponding parts or the entire bracket in time.

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