A composite assembled urban comprehensive underground pipe gallery and construction method thereof

Abstract

The present invention discloses a composite assembled urban comprehensive underground pipe gallery and a construction method thereof, comprising a prefabricated pipe gallery bottom plate and a cushion foundation, wherein a plurality of adjustment mechanisms are connected between the prefabricated pipe gallery bottom plate and the cushion foundation, which can support the prefabricated pipe gallery bottom plate, adjust the distance between the prefabricated pipe gallery bottom plate and the cushion foundation, and prevent the prefabricated pipe gallery bottom plate from floating. During the construction process of the present invention, the upper adjustment rod and the prefabricated pipe gallery bottom plate can be connected together and support the prefabricated pipe gallery bottom plate through the cooperation of the support part of the upper adjustment rod of the adjustment structure and the locking nut; at the same time, since the upper adjustment rod and the lower connecting rod are threadedly connected together, the distance between the prefabricated pipe gallery bottom plate and the cushion foundation can be adjusted by rotating the upper adjustment rod, and further, through the limiting effect of the locking nut on the upper adjustment rod, the spacing between the prefabricated pipe gallery bottom plate and the cushion foundation can be kept relatively stable, and the prefabricated pipe gallery bottom plate can be prevented from floating when pouring self-compacting concrete.

Description

Technical Field

[0001] The present invention relates to the technical field of urban integrated underground pipe corridors, and in particular to a superimposed assembled urban integrated underground pipe corridor and a construction method thereof. Background Art

[0002] The urban underground utility corridor is a national promotion project. The traditional construction is on-site mold assembly, on-site steel bar tying, and on-site concrete pouring. This on-site operation method has low construction efficiency, slow progress, and poor quality. With the development of building industrialization, the mature technology of prefabricated buildings has provided a new construction method for urban underground utility corridors, and the superimposed prefabricated urban underground utility corridors have been widely used. There are many types of such superimposed prefabricated utility corridors, and the most commonly used is the single-layer bottom plate structure. However, the superimposed prefabricated urban underground utility corridor with a single-layer bottom plate structure is in a suspended state because its bottom plate is not reliably connected to the cushion foundation. When pouring self-compacting concrete on site, if it is not well controlled, it will cause the bottom plate to float, affecting the subsequent wall panel construction and the quality of the utility corridor. Summary of the invention

[0003] In view of the shortcomings of the prior art, the present invention provides a composite assembled urban comprehensive underground pipe gallery, which mainly solves the technical problems that the prefabricated pipe gallery bottom plates of the existing composite assembled urban comprehensive underground pipe gallery are mostly single-layer structures. When pouring self-compacting concrete, the prefabricated pipe gallery bottom plates are in a suspended state, which easily causes the bottom plate to float, causing inconvenience to the subsequent wall panel installation.

[0004] To achieve the above object, the present invention is implemented by the following technical solutions:

[0005] A composite assembled urban comprehensive underground pipe gallery comprises a prefabricated pipe gallery bottom plate and a cushion foundation. A plurality of adjusting mechanisms are connected between the prefabricated pipe gallery bottom plate and the cushion foundation, which can support the prefabricated pipe gallery bottom plate, adjust the distance between the prefabricated pipe gallery bottom plate and the cushion foundation, and prevent the prefabricated pipe gallery bottom plate from floating. The adjusting mechanism comprises an upper adjusting rod and a lower connecting rod. The upper end of the upper adjusting rod is vertically movably connected to the prefabricated pipe gallery bottom plate and can axially rotate relative to the prefabricated pipe gallery bottom plate. A supporting portion that can be supported on the bottom of the prefabricated pipe gallery bottom plate is formed on the upper adjusting rod. A locking nut is threadedly connected at the upper end of the upper adjusting rod. The upper adjusting rod can be connected to the prefabricated pipe gallery bottom plate through the mutual cooperation of the locking nut and the supporting portion. The lower connecting rod is vertically fixedly connected to the cushion foundation, and the lower end of the upper adjusting rod is threadedly connected to the lower connecting rod.

[0006] Furthermore, an installation through hole is opened on the prefabricated pipe gallery bottom plate, and an upper adjusting rod connecting piece is provided at the bottom position of the installation through hole. The upper end portion of the upper adjusting rod passes through the upper adjusting rod connecting piece and extends into the installation through hole of the prefabricated pipe gallery bottom plate, and the supporting portion of the upper adjusting rod is against the bottom of the upper adjusting rod connecting piece. By locking a locking nut at the upper end of the upper adjusting rod, the upper adjusting rod and the prefabricated pipe gallery bottom plate can be connected as a whole to prevent the prefabricated pipe gallery bottom plate from floating when pouring self-compacting concrete.

[0007] Furthermore, the upper section adjusting rod connecting piece includes an embedded fixing steel plate fixedly connected to the bottom of the installation through hole and a connecting steel plate fixedly connected to the bottom of the embedded fixing steel plate through on-site assembly, the embedded fixing steel plate is provided with an embedded fixing steel plate through hole, and the connecting steel plate is provided with a connecting steel plate through hole, the upper end of the upper section adjusting rod passes through the connecting steel plate through hole and the embedded fixing steel plate through hole in turn and extends into the installation through hole of the prefabricated pipe gallery bottom plate, and the supporting portion of the upper section adjusting rod is against the bottom of the connecting steel plate.

[0008] Furthermore, the locking nut, the connecting steel plate, the upper adjusting rod and the lower connecting rod are pre-assembled and connected together, and the embedded fixing steel plate and the connecting steel plate are aligned and fixedly connected together by on-site welding.

[0009] Furthermore, the aperture of the through hole of the connecting steel plate is matched with the outer diameter of the upper end of the upper adjusting rod, and the aperture of the through hole of the embedded fixing steel plate is slightly larger than the through hole of the connecting steel plate.

[0010] Furthermore, the embedded fixing steel plate is provided with a plurality of welding through holes for facilitating welding and connecting the steel plates.

[0011] Furthermore, a plurality of pre-embedded steel bars protruding downward are provided at the periphery of the installation through hole of the prefabricated pipe gallery bottom plate, and the pre-embedded fixing steel plate is fixedly connected to the bottom position of the installation through hole by welding with the pre-embedded steel bars.

[0012] Furthermore, the lower connecting rod is a connecting steel bar fixedly connected to the cushion foundation.

[0013] Furthermore, the lower end of the connecting steel bar is fastened to the cushion foundation by an adhesive.

[0014] The present invention also provides a construction method of a superimposed assembled urban comprehensive underground pipe gallery, wherein the superimposed assembled urban comprehensive underground pipe gallery is the above-mentioned superimposed assembled urban comprehensive underground pipe gallery, and the construction method is as follows:

[0015] S1, laying out the lines on the cushion foundation, marking the positions of several mounting holes for mounting the lower connecting rod, and then drilling several mounting holes matching the lower connecting rod on the cushion foundation according to the determined positions;

[0016] S2, filling the mounting holes of the lower connecting rods on the cushion foundation with adhesive, and aligning and inserting the lower connecting rods into the mounting holes respectively, and then leaving them for a period of time until the adhesive solidifies so that the lower connecting rods are firmly connected to the cushion foundation;

[0017] S3, pre-assemble and connect the upper adjustment rod, the connecting steel plate and the locking nut together, and then respectively thread the lower end of each upper adjustment rod with the corresponding lower connecting rod in the cushion foundation;

[0018] S4, rotating each upper adjustment rod according to the elevation, so that each upper adjustment rod and the connecting steel plate are uniformly adjusted to a preset height;

[0019] S5, hoist the prefabricated pipe gallery bottom plate, and align the embedded fixed steel plates on the bottom of the prefabricated pipe gallery bottom plate to the corresponding connecting steel plates, and then fine-tune the height by rotating the upper adjustment rods to ensure that the spacing between the prefabricated pipe gallery bottom plate and the cushion foundation and the overall levelness of the prefabricated pipe gallery bottom plate meet the requirements;

[0020] S6, after the distance between the prefabricated pipe gallery bottom plate and the cushion foundation and the overall horizontality of the prefabricated pipe gallery bottom plate have passed the inspection, the embedded fixing steel plate and the connecting steel plate are welded firmly;

[0021] S7, then install the prefabricated left wall panel, prefabricated right wall panel, prefabricated middle partition and prefabricated top panel in sequence, tie the steel bars according to the technical specifications, complete the installation of the tunnel formwork, and finally pour the self-compacting concrete.

[0022] The composite assembled urban comprehensive underground pipe gallery and the construction method thereof described in the present invention have the following advantages:

[0023] Since a number of adjustment mechanisms are connected between the prefabricated pipe gallery bottom plate and the cushion foundation, during the construction process, the upper adjustment rod can be connected to the prefabricated pipe gallery bottom plate and support the prefabricated pipe gallery bottom plate through the cooperation of the support part of the upper adjustment rod of the adjustment structure and the locking nut; at the same time, since the upper adjustment rod and the lower connecting rod are threaded together, the distance between the prefabricated pipe gallery bottom plate and the cushion foundation can be adjusted by rotating the upper adjustment rod. Furthermore, through the limiting effect of the locking nut on the upper adjustment rod, the distance between the prefabricated pipe gallery bottom plate and the cushion foundation can be kept relatively stable and will not change at will. When pouring self-compacting concrete, the prefabricated pipe gallery bottom plate can be prevented from floating up, which may cause inconvenience in the subsequent installation of wall panels. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present invention.

[0025] Figure 2 yes Figure 1 A partial enlarged view of point A in the middle.

[0026] Description of labels:

[0027] 1. Prefabricated pipe gallery floor, 2. Pad foundation, 3. Adjustment mechanism, 4. Adhesive, 5. Self-compacting concrete, 11. Installation through hole, 12. Upper adjustment rod connector, 31. Upper adjustment rod, 32. Lower connecting rod, 33. Locking nut, 121. Embedded fixing steel plate, 122. Connecting steel plate, 123. Embedded steel bar, 311. Support part, 1211. Embedded fixing steel plate through hole, 1212. Welding through hole, 1221. Connecting steel plate through hole. DETAILED DESCRIPTION

[0028] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0029] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0030] Please refer to the attached Figure 1 , Attachment Figure 2In this embodiment, a composite assembled urban comprehensive underground pipe gallery includes a prefabricated pipe gallery bottom plate 1 and a cushion foundation 2. A plurality of adjustment mechanisms 3 are connected between the prefabricated pipe gallery bottom plate 1 and the cushion foundation 2 to support the prefabricated pipe gallery bottom plate 1 and adjust the distance between the prefabricated pipe gallery bottom plate 1 and the cushion foundation 2 and prevent the prefabricated pipe gallery bottom plate 1 from floating up. The adjustment mechanism 3 includes an upper adjustment rod 31 and a lower connecting rod 32. The upper end of the upper adjustment rod 31 is vertically movably connected to the prefabricated pipe gallery bottom plate 1 and can be relatively The prefabricated pipe gallery bottom plate 1 rotates axially, and a support portion 311 is formed on the upper section adjusting rod 31, which can be supported on the bottom of the prefabricated pipe gallery bottom plate 1. A locking nut 33 is threadedly connected at the upper end of the upper section adjusting rod 31. The upper section adjusting rod 31 can be connected to the prefabricated pipe gallery bottom plate 1 through the mutual cooperation of the locking nut 33 and the support portion 311. The lower section connecting rod 32 is vertically fixedly connected to the cushion foundation 2, and the lower end of the upper section adjusting rod 31 is threadedly connected to the lower section connecting rod 32. In this embodiment, since a number of adjustment mechanisms 3 are connected between the prefabricated pipe gallery bottom plate 1 and the cushion foundation 2, during the construction process, the upper section adjusting rod 31 can be connected to the prefabricated pipe gallery bottom plate 1 and support the prefabricated pipe gallery bottom plate 1 through the cooperation of the support portion 311 of the upper section adjusting rod 31 of the adjusting structure and the locking nut 33; at the same time, since the upper section adjusting rod 31 and the lower section connecting rod 32 are threadedly connected together, the distance between the prefabricated pipe gallery bottom plate 1 and the cushion foundation 2 can be adjusted by rotating the upper section adjusting rod 31. Furthermore, through the limiting effect of the locking nut 33 on the upper section adjusting rod 31, the distance between the prefabricated pipe gallery bottom plate 1 and the cushion foundation 2 can be kept relatively stable and will not change arbitrarily. When pouring the self-compacting concrete 5, the prefabricated pipe gallery bottom plate 1 can be prevented from floating up, which may cause inconvenience in the subsequent installation of wall panels.

[0031] Please refer to the attached Figure 1 , Attachment Figure 2 In this embodiment, preferably, a mounting through hole 11 is opened on the prefabricated pipe gallery bottom plate 1, and an upper adjusting rod connecting piece 12 is provided at the bottom position of the mounting through hole 11. The upper end portion of the upper adjusting rod 31 passes through the upper adjusting rod connecting piece 12 and extends into the mounting through hole 11 of the prefabricated pipe gallery bottom plate 1, and the supporting portion 311 of the upper adjusting rod 31 is against the bottom of the upper adjusting rod connecting piece 12. By locking the locking nut 33 at the upper end of the upper adjusting rod 31, the upper adjusting rod 31 and the prefabricated pipe gallery bottom plate 1 can be connected as a whole to prevent the prefabricated pipe gallery bottom plate 1 from floating when pouring the self-compacting concrete 5.

[0032] Please refer to the attached Figure 1 , Attachment Figure 2In this embodiment, preferably, the upper section adjusting rod connecting piece 12 includes an embedded fixing steel plate 121 fixedly connected to the bottom of the mounting through hole 11 and a connecting steel plate 122 fixedly connected to the bottom of the embedded fixing steel plate 121 through on-site assembly, the embedded fixing steel plate 121 is provided with an embedded fixing steel plate through hole 1211, and the connecting steel plate 122 is provided with a connecting steel plate through hole 1221, the upper end of the upper section adjusting rod 31 passes through the connecting steel plate through hole 1221 and the embedded fixing steel plate through hole 1211 in sequence and extends into the mounting through hole 11 of the prefabricated pipe gallery bottom plate 1, and the supporting portion 311 of the upper section adjusting rod 31 is against the bottom of the connecting steel plate 122.

[0033] Please refer to the attached Figure 1 , Attachment Figure 2 In this embodiment, preferably, the locking nut 33, the connecting steel plate 122, the upper adjusting rod 31 and the lower connecting rod 32 are pre-assembled and connected together, and the embedded fixing steel plate 121 and the connecting steel plate 122 are aligned and fixed together by on-site welding. During the installation of the prefabricated pipe gallery floor 1, since the prefabricated pipe gallery floor 1 is usually heavy, it needs to be installed by hoisting. If the embedded fixing steel plate 121 and the connecting steel plate 122 of the upper adjusting rod connecting piece 12 are directly pre-fixed and connected together before the installation of the prefabricated pipe gallery floor 1, then whether the upper adjusting rod 31 is first connected to the connecting steel plate 122 and then the upper adjusting rod 31 and the lower connecting rod 32 are aligned and threaded, or the upper adjusting rod 31 is first threadedly connected to the lower connecting rod 32 and then the connecting steel plate 122 and the upper adjusting rod 31 are aligned and connected, there is a problem of difficulty in alignment, which affects the installation efficiency of the prefabricated pipe gallery floor 1, and there is more or less shaking problem during the hoisting of the prefabricated pipe gallery floor 1, which may also increase the risk of the adjusting mechanism 3 being hit, bent and deformed. In this embodiment, preferably, the aperture of the connecting steel plate through hole 1221 is matched with the outer diameter of the upper end of the upper adjusting rod 31 , and the aperture of the embedded fixing steel plate through hole 1211 is slightly larger than the connecting steel plate through hole 1221 . Before installing the prefabricated pipe gallery base plate 1, the locking nut 33, the connecting steel plate 122, the upper adjusting rod 31 and the lower connecting rod 32 are pre-assembled and connected together. Then, when hoisting the prefabricated pipe gallery base plate 1, it is only necessary to align the embedded fixing steel plate 121 fixedly connected to the bottom of the installation through hole 11 of the prefabricated pipe gallery base plate 1 with the corresponding connecting steel plate 122. Since the aperture of the embedded fixing steel plate through hole 1211 is slightly larger than the connecting steel plate through hole 1221, during the alignment process of the embedded fixing steel plate 121 and the connecting steel plate 122, a certain offset is allowed between the embedded fixing steel plate 121 and the connecting steel plate 122, thereby reducing the requirements for the alignment accuracy of the two and improving the assembly efficiency. At the same time, it can also ensure that the adjusting mechanism 3 will not be bent due to the slight shaking of the prefabricated pipe gallery base plate 1, thereby improving its safety in use.

[0034] Please refer to the attached Figure 1 , Attachment Figure 2 In this embodiment, preferably, the embedded fixing steel plate 121 is provided with a plurality of welding through holes 1212 for facilitating welding of the connecting steel plate 122. In this embodiment, after the embedded fixing steel plate 121 and the corresponding connecting steel plate 122 are aligned, the embedded fixing steel plate 121 and the connecting steel plate 122 can be conveniently and quickly welded together firmly through the welding through holes 1212, so that the prefabricated pipe gallery bottom plate 1 and the cushion foundation 2 are connected together through the adjustment mechanism 3.

[0035] Please refer to the attached Figure 1 , Attachment Figure 2 In this embodiment, preferably, a plurality of downwardly protruding embedded steel bars 123 are provided at the peripheral positions of the installation through hole 11 of the prefabricated pipe gallery bottom plate 1, and the embedded fixing steel plate 121 is fixedly connected to the bottom position of the installation through hole 11 by welding with the embedded steel bars 123.

[0036] Please refer to the attached Figure 1 , Attachment Figure 2 In this embodiment, preferably, the lower connecting rod 32 is a connecting steel bar fixedly connected to the cushion foundation 2.

[0037] Please refer to the attached Figure 1 , Attachment Figure 2 In this embodiment, preferably, the lower end of the connecting steel bar is fastened to the cushion foundation 2 by an adhesive 4. In this embodiment, the adhesive 4 can be a building anchoring glue.

[0038] Please refer to the attached Figure 1 , Attachment Figure 2 This embodiment also provides a construction method of a superimposed assembled urban comprehensive underground pipe gallery, the superimposed assembled urban comprehensive underground pipe gallery is the above-mentioned superimposed assembled urban comprehensive underground pipe gallery, and the construction method is as follows:

[0039] S1, laying out the lines on the cushion foundation 2, marking the positions of several mounting holes for mounting the lower connecting rod 32, and then drilling several mounting holes on the cushion foundation 2 that match the lower connecting rod 32 according to the determined positions;

[0040] S2, fill the mounting holes of the lower connecting rods 32 on the cushion foundation 2 with adhesive 4, and align and insert the lower connecting rods 32 into the mounting holes respectively, and then leave them for a period of time until the adhesive 4 solidifies so that the lower connecting rods 32 are firmly connected to the cushion foundation 2;

[0041] S3, pre-assemble and connect the upper adjustment rod 31, the connecting steel plate 122 and the locking nut 33 together, and then respectively thread the lower end of each upper adjustment rod 31 with the corresponding lower connecting rod 32 in the cushion foundation 2;

[0042] S4, rotating each upper adjustment rod 31 according to the elevation, so that each upper adjustment rod 31 and the connecting steel plate 122 are uniformly adjusted to a preset height;

[0043] S5, hoist the prefabricated pipe gallery bottom plate 1, and align the embedded fixed steel plates 121 on the bottom of the prefabricated pipe gallery bottom plate 1 to fall onto the corresponding connecting steel plates 122, and then fine-tune the height by rotating the upper adjustment rods 31 to ensure that the spacing between the prefabricated pipe gallery bottom plate 1 and the cushion foundation 2 and the overall levelness of the prefabricated pipe gallery bottom plate 1 meet the requirements;

[0044] S6, after the distance between the prefabricated pipe gallery bottom plate 1 and the cushion foundation 2 and the overall horizontality of the prefabricated pipe gallery bottom plate 1 are inspected and found to be qualified, the embedded fixing steel plate 121 and the connecting steel plate 122 are welded firmly;

[0045] S7, then install the prefabricated left wall panel, prefabricated right wall panel, prefabricated middle partition and prefabricated top panel in sequence, tie the steel bars according to the technical specifications, complete the installation of the tunnel formwork, and finally pour the self-compacting concrete 5.

[0046] As described above, the embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some of the technical features therein by equivalents. These modifications or replacements do not deviate the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention. Therefore, all other embodiments obtained by those skilled in the art without making creative efforts belong to the protection scope of the present invention.

Claims

1. A composite assembled urban comprehensive underground pipe gallery, characterized in that: The invention comprises a prefabricated pipe gallery bottom plate (1) and a cushion foundation (2); a plurality of adjusting mechanisms (3) are connected between the prefabricated pipe gallery bottom plate (1) and the cushion foundation (2) and are capable of supporting the prefabricated pipe gallery bottom plate (1), adjusting the distance between the prefabricated pipe gallery bottom plate (1) and the cushion foundation (2) and preventing the prefabricated pipe gallery bottom plate (1) from floating up; the adjusting mechanisms (3) comprise an upper adjusting rod (31) and a lower connecting rod (32); the upper end of the upper adjusting rod (31) is vertically movably connected to the prefabricated pipe gallery bottom plate (1) and can be axially moved relative to the prefabricated pipe gallery bottom plate (1). The upper adjusting rod (31) is self-rotating, and a supporting portion (311) is formed on the upper adjusting rod (31) and can be supported on the bottom of the prefabricated pipe gallery bottom plate (1). A locking nut (33) is threadedly connected at the upper end of the upper adjusting rod (31). The upper adjusting rod (31) and the prefabricated pipe gallery bottom plate (1) can be connected together through the mutual cooperation of the locking nut (33) and the supporting portion (311). The lower connecting rod (32) is vertically fixedly connected to the cushion foundation (2), and the lower end of the upper adjusting rod (31) is threadedly connected to the lower connecting rod (32).

2. The composite assembled urban comprehensive underground pipe gallery according to claim 1 is characterized in that: The prefabricated pipe gallery bottom plate (1) is provided with a mounting through hole (11), and an upper section adjusting rod connecting piece (12) is provided at the bottom position of the mounting through hole (11). The upper end portion of the upper section adjusting rod (31) passes through the upper section adjusting rod connecting piece (12) and extends into the mounting through hole (11) of the prefabricated pipe gallery bottom plate (1), and the supporting portion (311) of the upper section adjusting rod (31) abuts against the bottom of the upper section adjusting rod connecting piece (12). By locking a locking nut (33) at the upper end of the upper section adjusting rod (31), the upper section adjusting rod (31) and the prefabricated pipe gallery bottom plate (1) can be connected as one body, so as to prevent the prefabricated pipe gallery bottom plate (1) from floating up when pouring self-compacting concrete.

3. The composite assembled urban comprehensive underground pipe gallery according to claim 2 is characterized in that: The upper adjusting rod connecting piece (12) comprises a pre-buried fixing steel plate (121) fixedly connected to the bottom of the installation through hole (11) and a connecting steel plate (122) fixedly connected to the bottom of the pre-buried fixing steel plate (121) by on-site assembly, the pre-buried fixing steel plate (121) is provided with a pre-buried fixing steel plate through hole (1211), the connecting steel plate (122) is provided with a connecting steel plate through hole (1221), the upper end of the upper adjusting rod (31) passes through the connecting steel plate through hole (1221) and the pre-buried fixing steel plate through hole (1211) in sequence and extends into the installation through hole (11) of the prefabricated pipe gallery bottom plate (1), and the supporting portion (311) of the upper adjusting rod (31) abuts against the bottom of the connecting steel plate (122).

4. The composite assembled urban comprehensive underground pipe gallery according to claim 3 is characterized by: The locking nut (33), the connecting steel plate (122), the upper adjusting rod (31) and the lower connecting rod (32) are pre-assembled and connected together, and the embedded fixing steel plate (121) and the connecting steel plate (122) are aligned and fixed together by on-site welding.

5. The composite assembled urban comprehensive underground pipe gallery according to claim 4 is characterized in that: The hole diameter of the connecting steel plate through hole (1221) is matched with the outer diameter of the upper end of the upper adjustment rod (31), and the hole diameter of the embedded fixing steel plate through hole (1211) is slightly larger than the connecting steel plate through hole (1221).

6. The composite assembled urban comprehensive underground pipe gallery according to claim 5 is characterized in that: The embedded fixing steel plate (121) is provided with a plurality of welding through holes (1212) for facilitating welding and connecting the steel plate (122).

7. The composite assembled urban comprehensive underground pipe gallery according to claim 3 is characterized by: A plurality of pre-embedded steel bars (123) protruding downward are provided at the periphery of the installation through hole (11) of the prefabricated pipe gallery bottom plate (1), and the pre-embedded fixing steel plate (121) is fixedly connected to the bottom of the installation through hole (11) by welding with the pre-embedded steel bars (123).

8. The composite assembled urban comprehensive underground pipe gallery according to any one of claims 1 to 7, characterized in that: The lower connecting rod (32) is a connecting steel bar fixedly connected to the cushion foundation (2).

9. The composite assembled urban comprehensive underground pipe gallery according to claim 8 is characterized in that: The lower end of the connecting steel bar is firmly connected to the cushion foundation (2) via an adhesive (4).

10. A construction method for a composite assembled urban comprehensive underground pipe gallery, characterized in that: The superimposed assembled urban comprehensive underground pipe gallery is the superimposed assembled urban comprehensive underground pipe gallery as claimed in any one of claims 4 to 9, and the construction method is as follows: S1, laying out lines on the cushion foundation (2), marking the positions of several mounting holes for mounting the lower connecting rod (32), and then drilling several mounting holes on the cushion foundation (2) that are compatible with the lower connecting rod (32) according to the determined positions; S2, filling the mounting holes of the lower connecting rods (32) on the cushion foundation (2) with adhesive (4), and aligning and inserting the lower connecting rods (32) into the mounting holes respectively, and then leaving them for a period of time until the adhesive (4) solidifies so that the lower connecting rods (32) and the cushion foundation (2) are firmly connected together; S3, pre-assemble and connect the upper adjustment rod (31), the connecting steel plate (122) and the locking nut (33), and then respectively thread the lower end of each upper adjustment rod (31) with the corresponding lower connecting rod (32) in the cushion foundation (2); S4, rotating each upper adjustment rod (31) according to the elevation, so that each upper adjustment rod (31) together with the connecting steel plate (122) is uniformly adjusted to a preset height; S5, hoisting the prefabricated pipe gallery bottom plate (1), and aligning the embedded fixing steel plates (121) on the bottom of the prefabricated pipe gallery bottom plate (1) to drop onto the corresponding connecting steel plates (122), and then fine-tuning the height by rotating the upper adjustment rods (31) to ensure that the spacing between the prefabricated pipe gallery bottom plate (1) and the cushion foundation (2) and the overall levelness of the prefabricated pipe gallery bottom plate (1) meet the requirements; S6, after the distance between the prefabricated pipe gallery bottom plate (1) and the cushion foundation (2) and the overall levelness of the prefabricated pipe gallery bottom plate (1) are inspected and found to be qualified, the embedded fixing steel plate (121) and the connecting steel plate (122) are welded firmly; S7, then install the prefabricated left wall panel, prefabricated right wall panel, prefabricated middle partition and prefabricated top panel in sequence, tie the steel bars according to the technical specifications, complete the installation of the tunnel formwork, and finally pour the self-compacting concrete.

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