Pipe gallery unit and composite pipe gallery

Abstract

The application provides a pipe gallery unit and a composite pipe gallery, the pipe gallery unit comprising a top wall, a bottom wall and a side support connected between the top wall and the bottom wall; the top of the top wall is provided with a pouring opening one; the top wall, the bottom wall and the side support are internally communicated to form an integral hollow structure; the top wall, the bottom wall and the side support are each provided with a reinforcing rib plate, and the top of the reinforcing rib plate is provided with a flow-through groove. The composite pipe gallery comprises a plurality of connected pipe gallery units, and forms a pipe gallery passage in the combined area of the top wall, the bottom wall and the side support; the top wall, the bottom wall and the side support are all steel structure prefabricated parts; and the integral hollow structure is internally filled with a concrete layer. The flow-through groove arranged on the top of the reinforcing rib plate can ensure the concrete flow between the chambers and the compactness of the concrete pouring, and no cavity will appear on the top of the top wall, the bottom wall or the side support.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of pipe gallery construction, in particular to a pipe gallery unit and a composite pipe gallery. BACKGROUND

[0002] In the construction process of pipe gallery, the open excavation method is usually used. The construction process includes the excavation and support in the early stage, and the subsequent pouring of concrete lining after the manual formwork and weaving of steel bars. The construction technology is difficult, the construction process is complex, and the construction period is long. The construction area needs to be enclosed during the construction process, which easily hinders traffic for a long time. In addition, the working environment of some construction sites is poor, the labor intensity of workers is high, and various safety hazards exist.

[0003] The prefabricated pipe gallery components of concrete are heavy, inconvenient to transport and install, and need to be waterproofed in the later stage. The construction procedure is relatively complicated. The bearing capacity of the pure steel structure pipe gallery is limited, and the control of the pouring amount of concrete at the construction site is not accurate. The construction environment is poor, and the concrete pouring surface needs to be treated after pouring.

[0004] In view of the above, there is an urgent need for a pipe gallery unit and a composite pipe gallery to solve the problems existing in the prior art. SUMMARY

[0005] The present application aims to provide a pipe gallery unit and a composite pipe gallery to solve the problems of complicated construction process and low construction efficiency of the existing pipe gallery.

[0006] To achieve the above-mentioned purpose, the present application provides a pipe gallery unit, which comprises a top wall, a bottom wall and a side support connected between the top wall and the bottom wall. The top of the top wall is provided with a pouring port one. The top wall, bottom wall and side support are internally connected to form a whole hollow structure. The inside of the top wall, bottom wall and side support is provided with a reinforcing rib plate. The top of the reinforcing rib plate is provided with a flow-through groove.

[0007] Preferably, a plurality of flow-through holes are further provided on the reinforcing rib plate.

[0008] Preferably, the top wall comprises a top plate one, a bottom plate one and a side plate one. A plurality of side plates one are connected between the top plate one and the bottom plate one to form a pouring cavity one inside the top wall. A plurality of vertical reinforcing rib plates are uniformly arranged inside the pouring cavity one.

[0009] The pouring port one is arranged on the top plate one. The bottom plate one is provided with a pouring port two for communication with the side support.

[0010] The top plate one is further provided with a ventilation hole.

[0011] Preferably, the bottom wall comprises a top plate two, a bottom plate two and side plates two; the plurality of side plates two are connected between the top plate two and the bottom plate two, and are combined to form a pouring cavity two inside the bottom wall; and a plurality of vertical reinforcing rib plates are uniformly arranged inside the pouring cavity two.

[0012] The top plate two is provided with a pouring opening three for communicating with the side support.

[0013] The top plate two is further provided with an openable observation hole.

[0014] Preferably, the side support is a support column and / or a support wall.

[0015] Preferably, the side support comprises a plurality of support side plates connected between the bottom plate one and the top plate two, and combined to form a pouring cavity three inside the side support; and a plurality of vertical or horizontal reinforcing rib plates are uniformly arranged inside the pouring cavity three.

[0016] Preferably, the pipe gallery unit further comprises a connecting assembly for connecting with adjacent pipe gallery units.

[0017] Preferably, the connecting assembly comprises a connecting plate provided with a pin shaft positioning hole and a mounting hole.

[0018] Preferably, the pipe gallery unit further comprises an ear assembly for hoisting.

[0019] The application further provides a composite pipe gallery provided with the pipe gallery unit, comprising a plurality of connected pipe gallery units, forming a pipe gallery passage in the combined area of the top wall, the bottom wall and the side support; the top wall, the bottom wall and the side support are steel structure prefabricated parts; and the overall hollow structure is filled with a concrete layer.

[0020] The technical scheme of the application has the following beneficial effects:

[0021] (1) In the application, the steel structure of the prefabricated pipe gallery unit is provided with a concrete pouring opening one at the top of the top wall, and when the pipe gallery is constructed, only the modularly designed pipe gallery units need to be spliced, and then the concrete is poured into the overall hollow structure inside the pipe gallery unit to realize the pipe gallery construction, thereby improving the pipe gallery construction efficiency. The reinforcing rib plates arranged inside the top wall, the bottom wall and the side support of the pipe gallery unit can enhance the structural strength of the steel structure of the pipe gallery unit, the through grooves arranged at the top of the reinforcing rib plates can ensure the concrete flow between the cavities and the compactness of the concrete pouring, and no hollows will appear at the top of the top wall, the bottom wall or the side support.

[0022] (2) In the application, the arrangement of the through holes, the through grooves and the corner grooves on the reinforcing rib plates can not only enhance the structural strength of the pipe gallery unit steel structure, but also ensure the good flowability of the concrete inside the pipe gallery unit steel structure.

[0023] (3) In the present application, the top wall is provided with a pouring opening one, the overall hollow structure inside the pipe gallery unit can be poured integrally, the top wall is provided with a gas vent, the gas can overflow from the gas vent during pouring, and the concrete pouring is ensured to be dense.

[0024] (4) In the present application, the pouring opening one, the pouring opening two and the pouring opening three are arranged concentrically, which is beneficial to ensure that the concrete inside the overall hollow structure has good fluidity.

[0025] (5) In the present application, the top plate two of the bottom wall is provided with an openable observation hole, the construction personnel can check the pouring condition of the bottom wall through the observation hole, and the concrete inside the bottom wall is vibrated through the observation hole, so that the concrete inside the bottom wall is ensured to be poured densely; the bottom plate two of the bottom wall can also be provided with a pouring opening four, so that the concrete can be poured into the pipe gallery installation foundation pit on the foundation through the bottom wall, the overall connection between the pipe gallery unit and the foundation is realized, and the installation stability of the pipe gallery unit is improved.

[0026] (6) In the present application, the side support can be arranged in the form of a support wall or a support column according to needs, so that the pipe gallery unit can be applied to each part of the pipe gallery.

[0027] (7) In the present application, the adjacent pipe gallery units are positioned and installed through the connecting plate, the positioning pin shaft and the bolt assembly in the connecting assembly, so that the assembly precision of the pipe gallery can be effectively improved, and the assembly efficiency of the pipe gallery is improved.

[0028] (8) In the present application, the pipe gallery unit further comprises a lifting lug assembly for realizing hoisting, when the pipe gallery unit is placed in the installation foundation pit underground, the pipe gallery unit can be lifted by a hoisting device, the position of the pipe gallery unit is moved, the laying of the pipe gallery unit is realized, and the construction efficiency of the pipe gallery is improved.

[0029] (9) In the present application, the top wall, the bottom wall, the side support, the reinforcing rib plate, the connecting assembly and the lifting lug assembly can be designed and produced in a standardized and modularized manner, are spliced and welded according to the running direction of the pipe gallery, the construction period can be effectively shortened, the construction precision is ensured, and the assembly efficiency is improved.

[0030] (10) In the present application, the top wall, the bottom wall and the side support are steel structure prefabricated parts; a concrete layer is filled in the overall hollow structure communicated by the top wall, the side support and the bottom wall, a composite pipe gallery of a steel-concrete structure is formed; the top wall, the bottom wall and the side support are connected by welding, the adjacent pipe gallery units are connected in position through the connecting assembly, then welding is performed at the connection of the adjacent pipe gallery units, so that the composite pipe gallery has good waterproof performance; the pipe gallery unit is convenient to install, has high assembly precision, is combined with the concrete layer, the stress of the pipe gallery unit is more uniform, has higher bearing capacity, and the strength and crack resistance of the whole pipe gallery can be improved.

[0031] In addition to the above described objects, features and advantages, the present application has other objects, features and advantages. These will become apparent from the following detailed description taken in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0032] The accompanying drawings, which form a part of this application, are included to provide a further understanding of the application, illustrate embodiments of the application and assist in

[0033] Figure 1 is a structural schematic diagram of a pipe gallery unit in Embodiment 1 of the present application;

[0034] Figure 2 is a structural schematic diagram of a top wall (part of side plates removed) in Embodiment 1 of the present application; Figure 1

[0035] Figure 3 is a structural schematic diagram of a reinforcing rib plate in Embodiment 1 of the present application; Figure 2

[0036] Figure 4 is a structural schematic diagram of a bottom wall in Embodiment 1 of the present application; Figure 1

[0037] Figure 5 is a structural schematic diagram of a side support in Embodiment 1 of the present application; Figure 1

[0038] Figure 6 is a structural schematic diagram of a reinforcing rib plate in Embodiment 1 of the present application; Figure 5

[0039] Figure 7 is a structural schematic diagram of a composite pipe gallery in Embodiment 1 of the present application;

[0040] Figure 8 is a structural schematic diagram of a pipe gallery unit in Embodiment 2 of the present application;

[0041] Figure 9 is a structural schematic diagram of a pipe gallery unit in Embodiment 3 of the present application;

[0042] Figure 10 is a structural schematic diagram of a pipe gallery unit in Embodiment 4 of the present application;

[0043] Figure 11 is a structural schematic diagram of a pipe gallery unit in Embodiment 5 of the present application;

[0044] Figure 12 is a structural schematic diagram of a pipe gallery unit in Embodiment 6 of the present application;

[0045] ​​​​​Wherein, 1, top wall, 1a, top wall one, 1b, top wall two, 1.1, pouring opening one, 1.2, top plate one, 1.3, bottom plate one, 1.4, side plate one, 1.5, pouring opening two, 1.6, ventilation hole, 2, bottom wall, 2a, bottom wall one, 2b, bottom wall two, 2.1, top plate two, 2.2, bottom plate two, 2.3, side plate two, 2.4, pouring opening three, 2.5, observation hole, 2.6, pouring opening four, 3, side support, 3a, side support one, 3b, side support two, 3.1, support side plate, 4, reinforcing rib plate, 4a, reinforcing rib plate one, 4b, reinforcing rib plate two, 4.1, flow-through groove, 4.2, flow-through hole, 4.3, corner groove, 5, connecting assembly, 5.1, connecting plate, 6, lifting lug assembly. DETAILED DESCRIPTION

[0046] The embodiments of the present application will be described in detail below with reference to the accompanying drawings, but the present application can be implemented in various different ways as defined and covered by the claims.

[0047] Embodiment 1:

[0048] Reference Figures 1 to 7 A pipe gallery unit and a composite pipe gallery, the embodiment is applied to underground pipe gallery construction.

[0049] A pipe gallery unit, comprising a top wall 1, a bottom wall 2 and a side support 3, the side support 3 is connected between the top wall 1 and the bottom wall 2, and a pipe gallery passage is formed in the area enclosed by the top wall 1, the bottom wall 2 and the side support 3; a plurality of pipe gallery units are spliced along the length direction of the pipe gallery laying line to complete the construction of the pipe gallery. In the embodiment, the side supports 3 are arranged on the left and right sides of the top wall 1 to form a pipe gallery passage with front and rear openings, as shown in Figure 1 .

[0050] The top of the top wall 1 is provided with a pouring opening one 1.1, and the interiors of the top wall 1, the bottom wall 2 and the side support 3 form a whole hollow structure, concrete can be poured into the interiors of the top wall 1, the side support 3 and the bottom wall 2 through the pouring opening one 1.1, a concrete layer is formed in the whole hollow structure, a steel-concrete structure is formed with the steel top wall 1, the bottom wall 2 and the side support 3, and the structural strength of the pipe gallery unit is improved; the interiors of the top wall 1, the bottom wall 2 and the side support 3 are each provided with a reinforcing rib plate 4, and the top of the reinforcing rib plate 4 is provided with a flow-through groove 4.1, because the reinforcing rib plate 4 separates the interiors of the top wall 1, the bottom wall 2 or the side support 3 into a plurality of chambers, the flow-through groove 4.1 arranged on the top of the reinforcing rib plate 4 can ensure the flow of concrete between the chambers and the compact pouring of concrete, and no hollows will appear on the top of the top wall 1, the bottom wall 2 or the side support 3.

[0051] The reinforcing rib plate 4 is further provided with a plurality of flow-through holes 4.2, which can facilitate the rapid flow of concrete between the chambers, as shown in Figure 2 andFigure 3 as shown.

[0052] The shapes of the top wall 1 and the bottom wall 2 can be adjusted according to the position of the pipe gallery unit. When the pipe gallery unit is in the middle section of the pipe gallery passage, the top wall 1 and the bottom wall 2 are both regular rectangular structures. In this embodiment, the pipe gallery unit is applied to the middle section of the pipe gallery passage, and the top wall 1 and the bottom wall 2 are in the form shown in the top wall one 1a in the middle section of the pipe gallery passage. Figure 2

[0053] The top wall one 1a includes a rectangular top plate one 1.2, a rectangular bottom plate one 1.3, and four rectangular side plates one 1.4. The multiple side plates one 1.4 are connected between the top plate one 1.2 and the bottom plate one 1.3 to combine to form a pouring cavity one inside the top wall 1. Multiple vertical reinforcing rib plates one 4a are uniformly arranged inside the pouring cavity one to strengthen the structural strength of the top wall one 1.

[0054] The pouring opening one 1.1 is arranged on the top plate one 1.2, and the bottom plate one 1.3 is provided with a pouring opening two 1.5 for communication with the side support 3. When pouring at the pouring opening one 1.1 at the top of the top wall one 1a, the concrete will enter the side support 3 through the pouring opening two 1.5 due to gravity to fill the inside of the side support 3. The top plate one 1.2 is also provided with a vent hole 1.6 to facilitate the overflow of gas during pouring and ensure the compaction of the concrete pouring. In this embodiment, three rows of pouring openings one 1.1 are uniformly arranged on the top plate one 1.2 to uniformly pour each horizontal chamber formed by the reinforcing rib plate one 4a. The vent hole 1.6 can be located around the pouring opening one 1.1 or above each chamber to ensure the overflow effect of gas during pouring, thereby ensuring the compaction of the concrete pouring in each chamber.

[0055] The reinforcing rib plate one 4a arranged in the top wall one 1a is as shown in Figure 3 Two rectangular flow-through grooves 4.1 are arranged at the top of the reinforcing rib plate one 4a, two flow-through holes 4.2 are arranged in the middle of the reinforcing rib plate one 4a, and four corner grooves 4.3 are arranged at the four corners of the reinforcing rib plate one 4a to facilitate the flow of concrete through the reinforcing rib plate one 4a.

[0056] Referring to Figure 4 The bottom wall one 2a includes a rectangular top plate two 2.1, a rectangular bottom plate two 2.2, and four rectangular side plates two 2.3. The multiple side plates two 2.3 are connected between the top plate two 2.1 and the bottom plate two 2.2 to combine to form a pouring cavity two inside the bottom wall 2. Multiple vertical reinforcing rib plates one 4a are uniformly arranged inside the pouring cavity two to strengthen the structural strength of the bottom wall 2.

[0057] ​The top plate two 2.1 is provided with a pouring opening three 2.4 for communicating with the side support 3, so that the concrete flows into the bottom wall 2 after passing through the top wall 1 and the side support 3, and the pouring inside the bottom wall 2 is realized; the pouring opening one 1.1, the pouring opening two 1.5 and the pouring opening three 2.4 are arranged concentrically in the up-down direction, which is beneficial to ensuring that the concrete inside the overall hollow structure has good fluidity.

[0058] The top plate two 2.1 is further provided with an openable and closable observation hole 2.5, through which the construction personnel can check the pouring condition of the bottom wall 2 and vibrate the concrete inside the bottom wall 2, so as to ensure that the concrete inside the bottom wall 2 is densely poured. The observation hole 2.5 can be plugged in the later pouring stage, for example, by welding and sealing with a steel plate.

[0059] The bottom plate two 2.2 can be further provided with a pouring opening four 2.6, which facilitates pouring the concrete into the pipe gallery installation foundation pit on the ground through the bottom wall 2, realizes the overall connection of the pipe gallery unit and the ground, and improves the installation stability of the pipe gallery unit.

[0060] The side support 3 is a support column and / or a support wall. In this embodiment, the side support 3 is a support wall, that is, Figure 5 the side support one 3a. Two support walls are connected between the top wall 1 and the bottom wall 2, forming a front and rear two-passage pipe gallery unit, which can be applied to the middle section of the pipe gallery passage.

[0061] In this embodiment, the side support one 3 includes a plurality of support side plates 3.1 connected between the bottom plate one 1.3 and the top plate two 2.1, which are combined to form a pouring cavity three inside the side support 3. A plurality of vertical or horizontal reinforcing rib plates two 4b are uniformly arranged inside the pouring cavity three, forming a plurality of vertical chambers inside the side support one 3a. The top and bottom of the reinforcing rib plate two 4b are each provided with a flow-through groove 4.2, a plurality of flow-through holes 4.2 are arranged in the middle of the reinforcing rib plate two 4b, and four corner grooves 4.3 are arranged at the four corners of the reinforcing rib plate two 4b, which facilitates the flow of concrete inside the side support one 3a.

[0062] A pipe gallery unit further includes a connecting assembly 5 for connecting with adjacent pipe gallery units, which is used to splice between a plurality of pipe gallery units and complete the construction of the underground pipe gallery.

[0063] In this embodiment, the connecting assembly 5 includes a connecting plate 5.1, which is provided with a pin shaft positioning hole and a mounting hole, as shown in Figure 1 and Figure 7 .

[0064] A pipe gallery unit further includes a lifting lug assembly 6 for realizing hoisting. When the pipe gallery unit is placed into the installation foundation pit underground, the pipe gallery unit can be lifted by a lifting device to realize the position movement of the pipe gallery unit, so as to realize the laying of the pipe gallery unit.

[0065] The top wall 1, the bottom wall 2, the side support 3, the reinforcing rib plate 4, the connecting assembly 5 and the lifting lug assembly 6 in the application can be standardized and modularized in design and production, and are spliced and welded according to the pipeline gallery direction, which can effectively shorten the construction period, ensure the construction accuracy and improve the assembly efficiency.

[0066] A composite pipeline gallery is provided with the pipeline gallery unit, a plurality of the pipeline gallery units are connected, and a pipeline gallery channel is formed in the area surrounded by the top wall 1, the bottom wall 2 and the side support 3; the top wall 1, the bottom wall 2 and the side support 3 are steel structure prefabricated parts; the whole hollow structure is filled with a concrete layer to form a composite pipeline gallery with a steel-concrete structure. The top wall 1, the bottom wall 2 and the side support 3 are connected by welding, and the adjacent pipeline gallery units are positioned and connected through the connecting assembly 5, and then welding is performed at the connection of the adjacent pipeline gallery units, so that the composite pipeline gallery has good waterproof performance. The steel structure of the pipeline gallery unit can be prefabricated in advance, and after the pipeline gallery unit is transported to the construction site, only the installation between the pipeline gallery units and the concrete pouring of the pipeline gallery unit need to be performed, which can effectively shorten the construction period. The pipeline gallery unit is convenient to install, has high assembly accuracy, is combined with the concrete layer, the stress of the pipeline gallery unit is more uniform, has higher bearing capacity, and can improve the strength and crack resistance of the whole pipeline gallery.

[0067] The construction method of the above pipeline gallery unit and composite pipeline gallery is as follows:

[0068] Step one: the top wall 1, the bottom wall 2 and the side support 3 are respectively made, and the reinforcing rib plate 4 is welded in the top wall 1, the bottom wall 2 and the side support 3; then the whole assembly welding of the pipeline gallery unit is completed;

[0069] Step two: through the cooperation of the lifting equipment and the lifting lug assembly 6, the pipeline gallery unit is lifted to the installation position, the connecting plate of the pipeline gallery unit is butted with the connecting plate of the previous pipeline gallery unit, the positioning connection between the pipeline gallery unit and the previous pipeline gallery unit is realized through the positioning pin shaft and the connecting bolt, and welding is performed at the connection of the pipeline gallery unit;

[0070] Step three: the concrete is poured into the pipeline gallery unit through the pouring opening one 1.1 at the top of the top wall 1, and the concrete flows in the pipeline gallery unit through the flow-through holes, the flow-through grooves and the corner grooves on the reinforcing rib plate 4; the pouring of the foundation pit, the bottom wall 2, the side support 3 and the top wall 1 is realized in sequence, in the pouring process, the pouring condition is observed through the observation hole 2.5 on the top plate two 2.1 of the bottom wall 2, the concrete in the bottom wall 2 is vibrated, and the observation hole 2.5 is closed after the bottom wall 2 is poured and compacted;

[0071] Step four: the pouring condition in the pipeline gallery unit is observed through the pouring opening one 1.1, and the pouring is stopped after the pipeline gallery unit is poured and compacted, so that the construction of the composite pipeline gallery is realized.

[0072] Example 2:

[0073] The difference between this embodiment and embodiment 1 is that the pipe gallery unit is applied to the ramp section of the pipe gallery, the side support 3 is a support wall of parallelogram structure, and the side plates (i.e. side plate one 1.4 and side plate two 2.3) at the connection between the top wall 1 and the bottom wall 2 and the side support 3 are also of parallelogram structure, as shown in Figure 8 .

[0074] Embodiment 3:

[0075] The difference between this embodiment and embodiment 1 is that the pipe gallery unit is applied to the pipe gallery of different heights, i.e. the height of the front section of the pipe gallery is C and the height of the rear section of the pipe gallery is D; the pipe gallery unit of this embodiment is used to realize the connection between pipe gallery sections of different heights.

[0076] In this embodiment, the side support 3 is a support wall of trapezoidal structure, and the side plates (i.e. side plate one 1.4 and side plate two 2.3) at the connection between the top wall 1 and the bottom wall 2 and the side support 3 are of parallelogram structure, as shown in Figure 9 .

[0077] Embodiment 4:

[0078] The difference between this embodiment and embodiment 1 is that the pipe gallery unit is applied to the corner of the pipe gallery, the shapes of the top wall 1 and the bottom wall 2 are matched with the shape of the corner, and specifically the top wall 1 is of the structure shown in Figure 10 , the bottom wall 2 is of the structure shown in Figure 10 . The side support 3 arranged at the inner corner of the top wall two 1b and the bottom wall two 2b is a support column, as shown in Figure 10 , and two support walls (i.e. side support one 3a) are arranged at the outer corner of the top wall two 1b and the bottom wall two 2b.

[0079] Embodiment 5:

[0080] The difference between this embodiment and embodiment 1 is that the pipe gallery unit is applied to the intersection of three pipe galleries, the side support 3 includes two support columns (i.e. side support two 3b) and one support wall (i.e. side support one 3a), as shown in Figure 11 , forming a three-way pipe gallery unit to realize the connection of three pipe galleries.

[0081] Embodiment 6:

[0082] The difference between this embodiment and embodiment 1 is that the pipe gallery unit is applied to the intersection of four pipe galleries, the side support 3 includes four support columns (i.e. side support two 3b), as shown in Figure 12 , forming a four-way pipe gallery unit to realize the connection of four pipe galleries.

[0083] The above merely provides the preferred embodiments of the present application, and is not used to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the principles and technical scope of the present application shall fall into the scope of the present application.

Claims

1. A utility tunnel unit, characterized in that, It includes a top wall (1), a bottom wall (2) and a side support (3), wherein the side support (3) is connected between the top wall (1) and the bottom wall (2); the top of the top wall (1) is provided with a pouring port (1.1); the top wall (1), the bottom wall (2) and the side support (3) are internally connected to form an integral hollow structure; the top wall (1), the bottom wall (2) and the side support (3) are all provided with reinforcing ribs (4); the top of the reinforcing ribs (4) is provided with a flow groove (4.1); The top wall (1) includes a top plate (1.2), a bottom plate (1.3) and a side plate (1.4); the first pouring port (1.1) is provided on the top plate (1.2), and the bottom plate (1.3) is provided with a second pouring port (1.5) for communicating with the side support (3); The bottom wall (2) includes a top plate two (2.1), a bottom plate two (2.2) and a side plate two (2.3); the top plate two (2.1) is provided with a pouring port three (2.4) for communicating with the side support (3); The pouring ports 1 (1.1), 2 (1.5) and 3 (2.4) are arranged concentrically.

2. A utility tunnel unit according to claim 1, characterized in that, The reinforcing rib plate (4) is also provided with several flow holes (4.2).

3. A utility tunnel unit according to claim 1, characterized in that, Multiple side plates (1.4) are connected between the top plate (1.2) and the bottom plate (1.3) to form the casting cavity inside the top wall (1); multiple vertical reinforcing ribs (4) are evenly arranged inside the casting cavity. The top plate (1.2) is also provided with ventilation holes (1.6).

4. A pipe gallery unit according to claim 3, characterized in that, Multiple side plates (2.3) are connected between the top plate (2.1) and the bottom plate (2.2) to form the casting cavity (2) inside the bottom wall (2); multiple vertical reinforcing ribs (4) are evenly arranged inside the casting cavity (2); The top plate 2 (2.1) is also provided with an openable observation hole (2.5).

5. A pipe gallery unit according to claim 4, characterized in that, The side support (3) is a support column and / or a support wall.

6. A pipe gallery unit according to claim 5, characterized in that, The side support (3) includes multiple support side plates (3.1), which are connected between the bottom plate one (1.3) and the top plate two (2.1) to form the casting cavity three inside the side support (3); multiple vertical or horizontal reinforcing ribs (4) are evenly arranged inside the casting cavity three.

7. A utility tunnel unit according to any one of claims 1 to 6, characterized in that, It also includes a connection component (5) for connecting to adjacent utility tunnel units.

8. A utility tunnel unit according to claim 7, characterized in that, The connecting assembly (5) includes a connecting plate (5.1), which has a pin positioning hole and a mounting hole.

9. A utility tunnel unit according to claim 1, characterized in that, It also includes a lifting lug assembly (6) for lifting.

10. A composite utility tunnel, comprising a utility tunnel unit as described in any one of claims 1 to 9, characterized in that, It includes multiple connected pipe gallery units, forming a pipe gallery passage within the area enclosed by the top wall (1), bottom wall (2) and side support (3); the top wall (1), bottom wall (2) and side support (3) are all precast steel structures; the interior of the overall hollow structure is filled with a concrete layer.

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