Prefabricated pipe gallery structure modular construction method

Abstract

This invention discloses a modular construction method for prefabricated utility tunnel structures, comprising the following steps: S1, prefabricating several segments of reinforced concrete integrated utility tunnel columns and beams; S2, excavating a foundation pit to construct a foundation platform, forming several spaced-apart sockets on the platform; S3, hoisting the integrated utility tunnel column and beam structure as a whole, positioning and fixing the bottom of the integrated structure into the sockets; S4, repeating step S3 to complete the installation of the next integrated utility tunnel column and beam structure; S5, pouring concrete at the joints between adjacent integrated utility tunnel columns and beams. This invention can further reduce construction costs, shorten the construction period, and ensure construction progress while maintaining construction efficiency and quality, and can effectively control problems such as construction waste, site dampness, and dust pollution during construction.

Description

Technical Field

[0001] This invention relates to the field of precast pipe gallery construction. More specifically, this invention relates to a modular construction method for precast pipe gallery structures. Background Technology

[0002] With the rapid development of my country's construction industry, prefabricated modular building structures have been widely used in construction projects. These structures improve construction efficiency, reduce project costs, and feature modularity, energy conservation, and environmental friendliness. In recent years, the ecological and environmental awareness of the Chinese people has been continuously enhanced, leading to the application of various energy-saving and environmentally friendly technologies in production activities. This has played a positive role in improving production efficiency and reducing energy consumption and environmental pollution. Prefabricated modular building structures are a new type of building structure. Applying them to the field of industrialized construction not only achieves excellent energy-saving and environmental protection effects but also further reduces construction costs, helping enterprises obtain higher economic benefits.

[0003] Currently, the structural form of pipe racks in domestic industrial buildings is primarily steel structure. Steel structure pipe racks generally have independent foundations with anchor bolts pre-embedded at the top. The superstructure is composed of specific steel materials, making it one of the main building structure types. Steel structures mainly consist of steel beams, columns, and trusses made of H-beams, I-beams, and steel plates, primarily using Q235B and Q345B steel. Components are typically connected by welds, bolts, or rivets. Due to its light weight, good ductility, and rapid construction, it is widely used in large industrial plants, stadiums, gas stations, and high-rise buildings. However, it has relatively weak overall integrity, poor fire resistance and corrosion resistance, and poor sealing performance. After the steel components of the pipe rack are installed, secondary grouting with high-strength, non-shrink grout ensures structural stability. The construction period is relatively long. Generally, the basic construction takes about 2 months, and the prefabrication and installation of steel components takes about 2 months. The steel components are generally H-beams, and the amount of steel used is relatively large. If the construction is not completed due to one factor, it will affect the construction period and thus affect the construction progress. Summary of the Invention

[0004] The purpose of this invention is to provide a modular construction method for prefabricated pipe gallery structures, which can further reduce construction costs, shorten the construction period, and ensure construction progress while ensuring construction efficiency and quality. It can also effectively control problems such as construction waste, site dampness, and dust pollution during the construction process.

[0005] The technical solution adopted by this invention to solve this technical problem is: a modular construction method for prefabricated pipe gallery structures, which includes the following steps:

[0006] S1. Prefabricate several segments of reinforced concrete pipe gallery columns and pipe gallery beams into an integrated structure according to design requirements;

[0007] S2. Excavate the foundation pit, construct a foundation at the bottom of the foundation pit, and form several recessed cup-shaped openings at intervals on the foundation.

[0008] S3. The hoisting mechanism is in place, and the integrated structure of the pipe gallery column and pipe gallery beam is hoisted as a whole, so that the bottom of the integrated structure of the pipe gallery column and pipe gallery beam enters the cup mouth and is positioned. The verticality and position deviation are measured and adjusted to ensure that the upper and lower axes of the integrated structure of the pipe gallery column and pipe gallery beam are aligned with the axis of the cup mouth and then fixed.

[0009] S4. Repeat step S3 to complete the installation of the next section of the integrated structure of the pipe gallery column and pipe gallery beam;

[0010] S5. Concrete is poured at the joint between adjacent integrated pipe gallery columns and beams.

[0011] Preferably, S1 specifically includes:

[0012] S11. Installation of formwork for pipe gallery columns and beams;

[0013] S12, Installation of steel reinforcement for pipe gallery columns and beams;

[0014] S13. The columns and beams of the pipe gallery are cast in an integral concrete pour, forming an integrated structure of the columns and beams.

[0015] Preferably, in step S2, a C45 fine aggregate concrete leveling layer is provided on the bottom surface of the cup rim;

[0016] After the integrated structure of the pipe gallery columns and beams is positioned, it is temporarily fixed. Then, C45 fine stone concrete is injected into the cup-shaped opening to complete the final fixation of the integrated structure of the pipe gallery columns and beams.

[0017] Preferably, the distance between adjacent cup openings is 30-60cm.

[0018] Preferably, in S2, a downwardly recessed groove is formed between adjacent cup openings during the construction of the foundation, a first reinforcing bar is vertically arranged in the groove, and a convex ridge is formed between the groove and the adjacent cup openings;

[0019] The concrete pouring at the joint in step S5 specifically includes:

[0020] S51. Install the front and rear templates, left and right templates, and top template. The width of the top template is greater than the width of the pipe gallery. The front and rear templates are parallel to the plane along the length of the pipe gallery, and the length of the front and rear templates is greater than the length of the joint between two installed precast pipe gallery sections, so that the front and rear templates can abut against the side wall of the pipe gallery. The left and right templates are parallel to the plane along the width of the pipe gallery. The bottom of the left and right templates is supported on the ribs, and the lower part of the left and right templates along the height direction has a toothed structure. The left and right templates are movably fixed to the top template. There is a certain gap between the left and right templates and the pipe gallery on the same side, so that after the concrete between the front and rear templates, left and right templates, and top template is poured, the left and right templates can be moved to the pipe gallery on the same side after the concrete strength reaches 70% of the design strength, so that the top template together with the left and right templates can be removed from above.

[0021] S52. Remove the left and right formwork, reinstall the top formwork, inject cement-based penetrating crystalline waterproofing material between the pipe gallery and the freshly poured concrete, and then complete the demolding.

[0022] Preferably, it also includes:

[0023] S53. Apply polyurethane waterproof coating to the surface and top of freshly poured concrete, the surface and top of cement-based penetrating crystalline waterproof material, and the surface and top of the pipe gallery near the cement-based penetrating crystalline waterproof material.

[0024] Preferably, an installation mechanism is used to complete the installation of the front and rear templates, left and right templates, and top template;

[0025] The installation mechanism includes: a truss rail crane, a first lifting mechanism, a second lifting mechanism, a third lifting mechanism, a first suction cup assembly, a second suction cup assembly, and a third suction cup assembly;

[0026] The truss track crane includes: two sets of supporting gantry frames, two sets of first tracks, and several second tracks; the supporting gantry frames are spaced apart along the length of the pipe gallery, the two sets of first tracks are spaced apart along the width of the two sets of supporting gantry frames, and the several second tracks are spaced apart along the length of the pipe gallery on the two sets of first tracks, and the second tracks can move along the first tracks.

[0027] Two sets of first lifting mechanisms and one set of second lifting mechanisms are installed on the same second track, and a set of third lifting mechanisms are installed on each of the other two second tracks; the first lifting mechanism is equipped with a first suction cup assembly, which is used to adsorb and fix the front template or the rear template; the second lifting mechanism is equipped with a second suction cup assembly, which is used to adsorb and fix the top template; the third lifting mechanism is equipped with a third suction cup assembly, which is used to adsorb and fix the left template or the right template.

[0028] Preferably, the top template is provided with a slot, which allows the left or right template to move left and right under the drive of the second track; the upper part of the left / right template protruding from the top template is a planar structure, and the lower part of the left / right template penetrating into the top template is a toothed structure.

[0029] The specific process of the installation agency installing the front template, rear template, left template, right template, and top template includes:

[0030] The first suction cup assembly adsorbs the front / rear template from the side, and the second suction cup assembly adsorbs the top template from the top surface.

[0031] The front / rear template is lowered to the set position by the first lifting mechanism, and then moved on the second track by the first lifting mechanism so that the front / rear template fits against the wall of the two adjacent pipe gallery sections.

[0032] The second lifting mechanism moves on the second track and drives the top template to descend to the set position, so that the two sides of the top template fit into the front / rear template.

[0033] The upper part of the left / right template is adsorbed from the side by the third suction cup. The second track and lifting mechanism move to make the left / right template pass through the slot to reach the set position, and the empty part of the slot is sealed with a sealing gasket. Then, concrete is poured. After the concrete reaches the set strength, the sealing gasket is removed. The demolding of the left / right template is completed by moving the second track corresponding to the left / right template.

[0034] Preferably, the height of the first reinforcing bar does not exceed that of the trench.

[0035] The present invention has at least the following beneficial effects:

[0036] The modular construction method for prefabricated pipe gallery structures proposed in this application can further reduce construction costs, shorten the construction period, and ensure construction progress while maintaining construction efficiency and quality. It also effectively controls issues such as construction waste, site dampness, and dust pollution during construction. Furthermore, prefabricated components offer significant advantages in terms of project progress, eliminating the need for scaffolding, which is expensive, thus accelerating project progress and achieving higher economic benefits.

[0037] Reduce construction difficulty: From the selection of cranes and the occupation of construction sites, it saves on work space and shifts, improves work efficiency, and thus saves on the cost of large machinery shifts and construction measures.

[0038] Cost and construction period: This construction technology saves 40-60% on scaffolding rental and erection / dismantling work, resulting in reduced costs. Worker efficiency is increased by approximately 60%, and the centralized use of large cranes, combined with other considerations, can save 10-15% on construction costs.

[0039] Other advantages, objectives and features of the present invention will become apparent in part from the following description, and in part from those skilled in the art through study and practice of the invention. Attached Figure Description

[0040] Figure 1 This is a schematic diagram of the overall hoisting of the integrated structure of the pipe gallery columns and beams of the present invention;

[0041] Figure 2 This is a schematic diagram of the connection between the two sections of the pipe gallery of the present invention;

[0042] Figure 3 This is a schematic diagram of the concrete pouring at the splice joint of the present invention.

[0043] 1. Pipe gallery column, 2. Pipe gallery beam, 3. Lifting mechanism, 4. Cup, 5. Integrated structure of pipe gallery column and pipe gallery beam, 6. Foundation, 7. Cement-based penetrating crystalline waterproof material layer, 8. Trench, 9. First reinforcing bar, 10. Supporting frame, 11. First track, 12. Second track, 13. Top formwork, 14. Front formwork, 15. Rear formwork. Detailed Implementation

[0044] The present invention will now be described in detail and completely with reference to the accompanying drawings. Those skilled in the art will be able to implement the present invention based on these descriptions. Before describing the present invention with reference to the accompanying drawings, it should be particularly noted that the technical solutions and features provided in various parts of the present invention, including the following description, can be combined with each other without conflict.

[0045] Furthermore, the embodiments of the present invention described below are generally only some, not all, of the embodiments of the present invention. Therefore, all other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort should fall within the scope of protection of the present invention.

[0046] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. The specific implementation process is as follows:

[0047] like Figures 1-3 As shown, the present invention provides a modular construction method for prefabricated pipe gallery structures, comprising the following steps:

[0048] S1. Prefabricate several segments of reinforced concrete pipe gallery columns and pipe gallery beams into an integrated structure according to design requirements;

[0049] S2. Excavate the foundation pit, construct the foundation 6 at the bottom of the foundation pit, and form several recessed cup-shaped openings 4 at intervals on the foundation 6.

[0050] S3. The hoisting mechanism 3 is in place, and the integrated structure 5 of the pipe gallery column and pipe gallery beam is hoisted as a whole, so that the bottom of the integrated structure 5 of the pipe gallery column and pipe gallery beam enters the cup 4 and is positioned. The verticality and position deviation are measured and adjusted to ensure that the upper and lower axes of the integrated structure 5 of the pipe gallery column and pipe gallery beam are aligned with the axis of the cup 4 and then fixed.

[0051] S4. Repeat step S3 to complete the installation of the next section of the integrated structure 5 of the pipe gallery column and pipe gallery beam;

[0052] S5. Concrete is poured at the joint between adjacent integrated pipe gallery columns and pipe gallery beams.

[0053] In the aforementioned technical solution, the two columns of the utility tunnel adopt a precast reinforced concrete structure. The beams and columns are produced using templates and hoisted as finished products. The purpose is to maintain the durability and stability of the structure, shorten the construction period, reduce labor and energy consumption, and modular production facilitates resource reuse, saves space, effectively ensures civilized on-site construction, saves energy and protects the environment, reduces costs, improves work efficiency, and ensures on-site construction progress, thereby effectively improving economic benefits. Moreover, the construction is convenient and can be effectively applied to the construction of industrial utility tunnels in various factories.

[0054] This technical solution may also include the following technical details to better achieve the technical effect: S1 specifically includes:

[0055] S11, Installation of formwork for pipe gallery column 1 and pipe gallery beam 2;

[0056] Installation of S12, reinforcement bars for column 1 and beam 2 of the pipe gallery;

[0057] S13, the concrete of the pipe gallery column 1 and the pipe gallery beam 2 is poured as a whole, thus forming an integrated structure of the pipe gallery column 1 and the pipe gallery beam 2.

[0058] In this embodiment, the concrete strength grade of both the pipe gallery column 1 and the pipe gallery beam 2 is C40, and the secondary grouting layer material is C45 fine aggregate concrete, which should be ensured to be full and dense during construction. Both the pipe gallery column 1 and the beam are precast reinforced concrete columns and beams, constructed as a whole on-site. In this embodiment, according to the design drawings, the absolute elevation of the pipe gallery column 1 is used; the maximum height of the pipe gallery column 1 is 12.0m, and the maximum beam length is 8.0m. The column cross-section dimensions are 600×600mm, the beam cross-section dimensions are 600×350mm, and the total concrete volume is approximately 11.24m³. 3 Assuming a weight of 2.55 tons per cubic meter, the total maximum weight is approximately 28.7 tons.

[0059] This technical solution may also include the following technical details to better achieve the technical effect: a C45 fine stone concrete leveling layer is provided on the bottom surface of the cup mouth 4 in step S2;

[0060] After the integrated structure 5 of the pipe gallery column and pipe gallery beam is positioned, it is temporarily fixed. Then, C45 fine stone concrete is injected into the cup 4 for a second time to complete the final fixation of the integrated structure 5 of the pipe gallery column and pipe gallery beam.

[0061] This technical solution may also include the following technical details to better achieve the technical effect: the distance between adjacent cup openings 4 is 30-60cm.

[0062] This technical solution may also include the following technical details to better achieve the technical effect: In S2, when constructing the foundation 6, a downwardly recessed groove 8 is formed between adjacent cup openings 4. A first steel bar 9 is vertically installed in the groove 8. The steel bar is fixed as a whole by pouring concrete into the foundation 6. A convex ridge is formed between the groove 8 and the adjacent cup openings 4.

[0063] The concrete pouring at the joint in step S5 specifically includes:

[0064] S51. Install the front and rear templates 15, left and right templates, and top template 13. The width of the top template is greater than the width of the pipe gallery. The front and rear templates 15 are parallel to the plane along the length of the pipe gallery, and the length of the front and rear templates 15 is greater than the length of the joint between two sections of precast pipe gallery, so that the front and rear templates 15 can abut against the side wall of the pipe gallery. The left and right templates are parallel to the plane along the width of the pipe gallery. The bottom of the left and right templates is supported on the ribs. The lower part of the left and right templates along the height direction has a toothed structure, and the bottom is flat. The left and right templates are movably fixed on the top template 13. There is a certain gap between the left and right templates and the pipe gallery on the same side, so that after the concrete between the front and rear templates 15, left and right templates, and top template 13 is poured, the left and right templates can be moved to the pipe gallery on the same side after the concrete strength reaches 70% of the design strength, so that the top template 13 together with the left and right templates can be taken out from above.

[0065] S52. Remove the left and right formwork, reinstall the top formwork 13, inject cement-based penetrating crystalline waterproofing material between the pipe gallery and the freshly poured concrete to form a cement-based penetrating crystalline waterproofing material layer 7, and then complete the demolding.

[0066] This technical solution may also include the following technical details to better achieve the technical effect: It also includes:

[0067] S53. Apply polyurethane waterproof coating to the surface and top of freshly poured concrete, the surface and top of cement-based penetrating crystalline waterproof material layer 7, and the surface and top of the pipe gallery near the cement-based penetrating crystalline waterproof material.

[0068] In the above technical solution, the durability of the pipe gallery structure joints can be improved by constructing a cement-based penetrating crystalline waterproof material layer and applying polyurethane waterproof coating at the joints. Especially in coastal areas, if concrete is directly poured to connect the joints, rainwater and air erosion can easily cause cracks, affecting the service life of the overall pipe gallery and requiring regular repairs.

[0069] This technical solution may also include the following technical details to better achieve the technical effect: the installation of the front and rear templates 15, the left and right templates and the top template 13 is completed by using an installation mechanism;

[0070] The installation mechanism includes: a truss rail crane, a first lifting mechanism, a second lifting mechanism, a third lifting mechanism, a first suction cup assembly, a second suction cup assembly, and a third suction cup assembly;

[0071] The truss track crane includes: two sets of supporting gantry frames 10, two sets of first tracks 11, and several second tracks 12; the supporting gantry frames 10 are spaced apart along the length of the pipe gallery, the two sets of first tracks 11 are spaced apart on the two sets of supporting gantry frames 10 along the width direction, and the several second tracks 12 are spaced apart on the two sets of first tracks 11 along the length of the pipe gallery, and the second tracks 12 can move along the first tracks 11.

[0072] Two sets of first lifting mechanisms and one set of second lifting mechanisms are installed on the same second track 12, and a set of third lifting mechanisms are installed on the other two second tracks 12 respectively; the first lifting mechanism is equipped with a first suction cup assembly, which is used to adsorb and fix the front template 14 or the rear template 15 (the front and rear templates 15 include the front template 14 and the rear template 15); the second lifting mechanism is equipped with a second suction cup assembly, which is used to adsorb and fix the top template 13; the third lifting mechanism is equipped with a third suction cup assembly, which is used to adsorb and fix the left template or the right template (the left and right templates include the left template and the right template).

[0073] This technical solution may also include the following technical details to better achieve the technical effect: the top template 13 is provided with a slot, which allows the left template or the right template to move left and right under the drive of the second track 12; the upper part of the left / right template protruding from the top template 13 is a planar structure, and the lower part of the left / right template penetrating into the top template 13 is a toothed structure.

[0074] The specific process of the installation mechanism installing the front template 14, rear template 15, left template, right template, and top template 13 includes:

[0075] The first suction cup assembly adsorbs the front / rear template 15 from the side, and the second suction cup assembly adsorbs the top template 13 from the top surface.

[0076] The front / rear template 15 is lowered to a set position by the first lifting mechanism, and then moved on the second track 12 by the first lifting mechanism so that the front / rear template 15 fits against the wall of the two adjacent pipe rack sections.

[0077] The second lifting mechanism moves on the second track 12 and drives the top template 13 to descend to the set position, so that the two sides of the top template 13 fit with the front / rear template 15.

[0078] The upper part of the left / right template is adsorbed from the side by the third suction cup. The second track 12 and the lifting mechanism move to make the left / right template pass through the slot to reach the set position. The empty part of the slot is sealed with a sealing gasket, and then concrete is poured. After the concrete reaches the set strength, the sealing gasket is removed. The demolding of the left / right template is completed by moving the second track 12 corresponding to the left / right template.

[0079] This technical solution may also include the following technical details to better achieve the technical effect: the height of the first reinforcing bar 9 does not exceed the height of the trench 8.

[0080] Although embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for the present invention. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, the present invention is not limited to the specific details and embodiments shown and described herein.

Claims

1. A modular construction method for prefabricated pipe gallery structures, characterized in that, Includes the following steps: S1. Prefabricate several segments of reinforced concrete pipe gallery columns and pipe gallery beams into an integrated structure according to design requirements; S2. Excavate the foundation pit, construct a foundation at the bottom of the foundation pit, and form several recessed cups at intervals on the foundation; when constructing the foundation, a recessed groove is formed between adjacent cups, and a first steel bar is vertically installed in the groove, and a ridge is formed between the groove and the adjacent cups. S3. The hoisting mechanism is in place, and the integrated structure of the pipe gallery column and beam is hoisted as a whole, so that the bottom of the integrated structure enters the cup opening. The verticality and position deviation are measured and adjusted to ensure that the upper and lower axes of the integrated structure are aligned with the axis of the cup opening before fixing. The distance between adjacent cup openings is 30-60cm. S4. Repeat step S3 to complete the installation of the next section of the integrated structure of the pipe gallery column and pipe gallery beam; S5. Concrete is poured at the joints between adjacent integrated pipe gallery columns and beams, specifically including: S51. Install the front and rear templates, left and right templates and top template. The width of the top template shall be greater than the width of the pipe gallery. The front and rear templates are parallel to the plane along the length of the pipe gallery, and the length of the front and rear templates is greater than the length of the joint between two installed precast pipe gallery sections, so that the front and rear templates can abut against the side wall of the pipe gallery; the left and right templates are parallel to the plane along the width of the pipe gallery, the bottom of the left and right templates is supported on the ribs, and the lower part of the left and right templates along the height direction has a toothed structure; the left and right templates are movably fixed to the top template; there is a certain gap between the left and right templates and the pipe gallery on the same side, so that after the concrete between the front and rear templates, left and right templates and the top template is poured, the left and right templates can be moved to the pipe gallery on the same side after the concrete strength reaches 70% of the design strength, so that the top template together with the left and right templates can be taken out from above; S52. Remove the left and right formwork, reinstall the top formwork, inject cement-based penetrating crystalline waterproofing material between the pipe gallery and the freshly poured concrete to form a cement-based penetrating crystalline waterproofing material layer, and then complete the demolding.

2. The modular construction method for prefabricated pipe gallery structures as described in claim 1, characterized in that, S1 specifically includes: S11. Installation of formwork for pipe gallery columns and beams; S12, Installation of steel reinforcement for pipe gallery columns and beams; S13. The columns and beams of the pipe gallery are cast in an integral concrete pour, forming an integrated structure of the columns and beams.

3. The modular construction method for prefabricated pipe gallery structures as described in claim 1, characterized in that, In step S2, a C45 fine stone concrete leveling layer is provided on the bottom surface of the cup mouth. After the integrated structure of the pipe gallery columns and beams is positioned, it is temporarily fixed. Then, C45 fine stone concrete is injected into the cup-shaped opening to complete the final fixation of the integrated structure of the pipe gallery columns and beams.

4. The modular construction method for prefabricated pipe gallery structures as described in claim 1, characterized in that, Also includes: S53. Apply polyurethane waterproof coating to the surface and top of freshly poured concrete, the surface and top of cement-based penetrating crystalline waterproof material, and the surface and top of the pipe gallery near the cement-based penetrating crystalline waterproof material.

5. The modular construction method for prefabricated pipe gallery structures as described in claim 1, characterized in that, The installation mechanism is used to complete the installation of the front and rear templates, left and right templates, and top template; The installation mechanism includes: a truss rail crane, a first lifting mechanism, a second lifting mechanism, a third lifting mechanism, a first suction cup assembly, a second suction cup assembly, and a third suction cup assembly; The truss track crane includes: two sets of supporting gantry frames, two sets of first tracks, and several second tracks; the supporting gantry frames are spaced apart along the length of the pipe gallery, the two sets of first tracks are spaced apart on the two sets of supporting gantry frames along the width direction, and the several second tracks are spaced apart on the two sets of first tracks along the length of the pipe gallery; the second tracks can move along the first tracks. Two sets of first lifting mechanisms and one set of second lifting mechanisms are installed on the same second track, and a set of third lifting mechanisms are installed on each of the other two second tracks; the first lifting mechanism is equipped with a first suction cup assembly, which is used to adsorb and fix the front template or the rear template; the second lifting mechanism is equipped with a second suction cup assembly, which is used to adsorb and fix the top template; the third lifting mechanism is equipped with a third suction cup assembly, which is used to adsorb and fix the left template or the right template.

6. The modular construction method for prefabricated pipe gallery structures as described in claim 5, characterized in that, The top template is provided with a slot, which allows the left or right template to move left or right under the drive of the second track; the upper part of the left / right template protruding from the top template is a planar structure, and the lower part of the left / right template penetrating into the top template is a toothed structure. The specific process of the installation agency installing the front template, rear template, left template, right template, and top template includes: The first suction cup assembly adsorbs the front / rear template from the side, and the second suction cup assembly adsorbs the top template from the top surface. The front / rear template is lowered to the set position by the first lifting mechanism, and then moved on the second track by the first lifting mechanism so that the front / rear template fits against the wall of the two adjacent pipe gallery sections. The second lifting mechanism moves on the second track and drives the top template to descend to the set position, so that the two sides of the top template fit into the front / rear template. The upper part of the left / right template is adsorbed from the side by the third suction cup. The second track and lifting mechanism move to make the left / right template pass through the slot to reach the set position, and the empty part of the slot is sealed with a sealing gasket. Then, concrete is poured. After the concrete reaches the set strength, the sealing gasket is removed, and the demolding of the left / right template is completed by moving the second track corresponding to the left / right template.

7. The modular construction method for prefabricated pipe gallery structures as described in claim 1, characterized in that, The height of the first reinforcing bar does not exceed that of the trench.

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