Pipe gallery structure and construction method thereof

Abstract

The invention relates to a pipe gallery structure and a construction method thereof. The pipe gallery structure comprises a cast-in-place structure and a plurality of prefabricated part units, each prefabricated part unit comprises a prefabricated main body and a prefabricated supporting structure, each prefabricated main body comprises a base part, two side wall bodies and a supporting bracket, each prefabricated supporting structure comprises a main beam part and two axilla parts, and connecting stirrups are fixedly connected to the supporting brackets; the cast-in-place structure comprises a first cast-in-place structure and two second cast-in-place structures, the first cast-in-place structure is fixedly connected with the main beam parts of the multiple prefabricated part units, the second cast-in-place structures are fixedly connected with the supporting brackets, and the second cast-in-place structures are fixedly connected with the axilla parts of the multiple prefabricated part units; the main beam part is provided with a plurality of first distribution ribs, all the first distribution ribs are connected through first stress ribs, the first stress ribs are fixedly connected with bending ribs, and the bending ribs are provided with bending parts; a plurality of side wall stress ribs are arranged in the side wall body and are embedded in the second cast-in-place structure; the cast-in-place structure is provided with a plurality of second distribution ribs, and the bent parts are connected with the second distribution ribs in a hooked mode.

Description

Technical Field

[0001] The present application relates to the field of construction technology, and more specifically, to a pipe gallery structure and a construction method thereof. Background Art

[0002] In the construction of urban infrastructure, underground integrated pipe corridors are an important facility, and their role is becoming increasingly prominent. Integrated pipe corridors can centrally lay municipal pipelines such as electricity, communications, gas, heating, water supply and drainage, effectively avoiding the "road zipper" phenomenon and improving the safety and reliability of urban infrastructure.

[0003] At present, in the construction of pipe corridors, the commonly used construction methods mainly include open-cut cast-in-place method and prefabricated assembly method. During the construction process of the open-cut cast-in-place method, a large amount of steel bar binding, formwork support and concrete pouring work are required on site. The construction period is long and has a great impact on the surrounding environment, such as generating a lot of noise and dust pollution, and also affecting traffic. Although the prefabricated assembly method shortens the on-site construction time to a certain extent, the connection method between prefabricated components is relatively complicated, and the reliability of the connection nodes directly affects the overall stability of the pipe corridor structure. Under the existing connection method, cracks, leakage and other problems are prone to occur at the nodes, resulting in reduced durability of the pipe corridor structure and increased maintenance costs in the later stage. Therefore, how to provide a pipe corridor construction technical solution that can not only ensure the stability of the pipe corridor structure but also effectively shorten the construction period has become a technical problem that needs to be solved urgently in this field. Summary of the invention

[0004] In view of this, the present application provides a pipe gallery structure and a construction method thereof, aiming to improve the stability of the existing pipe gallery structure and shorten the construction period.

[0005] In a first aspect, the present application provides a pipe gallery structure, comprising a cast-in-place structure and a plurality of prefabricated component units arranged along a first direction, each of the prefabricated component units comprising a prefabricated main body and a prefabricated support structure;

[0006] The prefabricated body comprises a base, two side walls and a supporting corbel, the two side walls are respectively fixedly connected to the base at both ends of the second direction, an accommodating space for pipe installation is provided between the base and the two side walls, and a supporting corbel is fixedly connected to the top of each side wall;

[0007] The prefabricated support structure comprises a main beam and two armpits respectively fixedly connected to the main beam at both ends in the second direction, one armpit is arranged at the top of a corresponding supporting corbel, a plurality of armpit tension bars extending along the first direction are arranged inside the armpit, all the armpit tension bars are connected by armpit stirrups, two ends of the armpit stirrups are provided with connecting stirrups, the connecting stirrups extend in a vertical direction and the ends thereof are passed through and fixed to the supporting corbel;

[0008] The cast-in-place structure comprises a first cast-in-place structure and two second cast-in-place structures respectively fixedly connected to the first cast-in-place structure at both ends in the second direction, the first cast-in-place structure is fixedly connected to the top of the main beam of the plurality of prefabricated component units, the bottom of each second cast-in-place structure is fixedly connected to the top surface of a supporting corbel, and the second cast-in-place structure is fixedly connected to the side of the axils of the plurality of prefabricated component units away from the other axils along the second direction;

[0009] A plurality of first distribution ribs arranged along the second direction are provided in the main beam portion, all of the first distribution ribs are connected by first force-bearing ribs extending along the second direction, the end sections of the first force-bearing ribs are fixedly connected to the axilla tensioning ribs, and the ends of the first force-bearing ribs are fixedly connected to bending ribs, the bending ribs extend in a vertical direction, and the ends of the bending ribs away from the first force-bearing ribs are provided with a bent portion;

[0010] A plurality of vertically extending side wall reinforcement bars are arranged inside the side wall body, and the top ends of the side wall reinforcement bars pass through the supporting corbels and are buried in the second cast-in-place structure;

[0011] The cast-in-place structure is provided with a plurality of second distribution bars arranged along a second direction and extending along a first direction, the bent portion is hooked with the second distribution bars, and the second direction and the first direction are perpendicular to each other and parallel to a horizontal plane.

[0012] Preferably, the cast-in-place structure is provided with a plurality of second stress-bearing reinforcement units and a plurality of second distribution reinforcements arranged along the second direction and extending along the first direction, the second stress-bearing reinforcement comprises a first sub-rebar and a second sub-rebar fixedly connected, and in each second stress-bearing reinforcement unit, the first sub-rebar is extended along the second direction, and the second sub-rebar is extended along the vertical direction;

[0013] All the second distribution bars located in the first cast-in-place structure are fixedly connected via the first sub-bars, and all the second distribution bars located in the second cast-in-place structure are fixedly connected via the second sub-bars.

[0014] Preferably, an end of the second sub-rebar away from the first sub-rebar is provided with a bending portion, and the bending portion is used to hook the second distribution reinforcement close to the bottom end of the second cast-in-place structure.

[0015] Preferably, a plurality of corbel reinforcements extending along the second direction are provided inside the supporting corbel, and all the corbel reinforcements are connected by corbel stirrups.

[0016] Preferably, the pipe gallery structure further includes a water stop plate, the top end of which is passed through and fixedly connected to the second cast-in-place structure, and the bottom end of which is passed through and fixedly connected to the supporting corbel.

[0017] Preferably, a hanging ring portion is embedded in the axil, and the hanging ring portion includes a ring portion and a connecting portion which are fixedly connected to each other, the connecting portion is fixedly connected to the axil stirrups, and the ring portion is embedded in the second cast-in-place structure.

[0018] In a second aspect, the present invention provides a construction method for the pipe gallery structure provided in the first aspect of the present application, comprising:

[0019] Step 1: prefabricate the prefabricated main body and reserve a connection hole on the top surface of the supporting corbel;

[0020] Step 2: prefabricating the prefabricated support structure;

[0021] Step 3: excavate the foundation pit;

[0022] Step 4: hoist the prefabricated main body into the foundation pit and fix it, and inject grout into the connection hole; hoist the prefabricated support structure to the top of the prefabricated main body, and pass the connection stirrup through the connection hole to complete the assembly of one prefabricated component unit;

[0023] Step 5, repeating step 4 to complete the assembly of multiple prefabricated component units;

[0024] Step 6: erecting the formwork and the second distribution reinforcement, hooking the bent portion with the second distribution reinforcement, casting and solidifying to form the cast-in-place structure, and connecting the plurality of prefabricated component units into one through the cast-in-place structure;

[0025] Step 7: Maintenance and post-processing.

[0026] Preferably, step 2 includes:

[0027] Casting the prefabricated support structure;

[0028] The top surface of the main beam and the side surface of the armpit away from the other armpit along the second direction are roughened or chiseled, and after the roughening or chiseling, the top surface of the main beam and the side surface of the armpit have a convexity of not less than 5 mm.

[0029] Compared with the prior art, the pipe gallery structure and construction method provided by the present application achieve at least the following beneficial effects:

[0030] In the present application, the pipe gallery structure includes a plurality of prefabricated component units arranged along a first direction, each prefabricated component unit includes a prefabricated main body, the prefabricated main body includes a base and two side walls, and an accommodating space for pipe installation is provided between the two side walls. In this way, a channel extending along the first direction can be formed between the two side walls of the plurality of prefabricated component units, and the channel consists of a plurality of accommodating spaces for centrally arranging and installing a plurality of pipes. Each prefabricated component unit also includes a prefabricated support structure, which includes a main beam portion and two armpits. A plurality of armpit reinforcements are arranged inside the armpits. The armpit reinforcements can improve the bearing capacity and seismic resistance of the armpits along the first direction, and all the armpit reinforcements are connected by armpit stirrups. The armpit stirrups connect all the armpit reinforcements inside the armpits into a whole, and the armpit stirrups further enhance the strength and tensile performance of the armpits; a supporting corbel is fixedly connected to the top of each side wall body, the armpits correspond to the supporting corbels one by one, and the armpits are arranged at the top of the corresponding supporting corbels, wherein connecting stirrups are arranged at both ends of the armpit stirrups. In actual implementation, the connecting stirrups and the armpit stirrups are an integrated steel bar body, and the connecting stirrups are extensions of the armpit stirrups; the connecting stirrups extend in the vertical direction and their ends are passed through the supporting corbels. In this way, the armpits are fixedly connected to the supporting corbels through the armpit reinforcements, the armpit stirrups and the connecting stirrups, thereby realizing a fixed connection between the prefabricated support structure and the prefabricated main body in each prefabricated component unit. In specific implementation, both the prefabricated main body and the prefabricated supporting structure can be prefabricated components. After the multiple prefabricated component units of the pipe gallery structure are arranged along the first direction, concrete is poured on top of the multiple prefabricated component units to form a cast-in-place structure.

[0031] The cast-in-place structure includes a first cast-in-place structure. After casting and solidification, the first cast-in-place structure is fixed and solidified together with the top of the main beam part of the plurality of prefabricated component units. In addition, a plurality of first distribution bars are arranged in the main beam part. The first distribution bars can improve the bearing capacity and seismic resistance of the main beam part along the first direction, and all the first distribution bars are connected by first force bars extending along the second direction. The first force bars fix all the first distribution bars together as a whole, and the first force bars can improve the bearing capacity of the main beam part along the second direction; the end section of the first force bar is fixedly connected to the axil reinforcement, so that all the first distribution bars, the first force bars, the axil reinforcement and the axil stirrups are fixedly connected together, interwoven vertically and horizontally in the prefabricated support structure, and work together to form an overall force system to jointly resist external forces, thereby further enhancing the structural strength and load resistance and vibration resistance of the prefabricated support structure. In addition, a bending rib is provided at the end of the first force-bearing rib, and a bent portion is provided at the end of the bending rib. A plurality of second distribution ribs are provided in the cast-in-place structure, and the bent portion is hooked with the second distribution ribs, that is, the bent portion is passed through the top surface of the preset support structure and buried in the first cast-in-place structure. In this way, a fixed connection between the main beam and the first cast-in-place structure is achieved, that is, a fixed connection between the cast-in-place structure and the prefabricated support structure is achieved. In addition, the external force acting on the first cast-in-place structure can be dispersed to the plurality of first distribution ribs, axillary tension bars and axillary stirrups through the bent portion, the bending rib, and the first force-bearing rib. The cast-in-place structure also includes a second cast-in-place structure. After casting and solidification, the second cast-in-place structure is fixedly connected to the outer sides of the axillary parts of the plurality of prefabricated component units, and the bottom of each second cast-in-place structure is fixedly connected to the top surface of a supporting corbel. In this way, through the second cast-in-place structure, the cast-in-place structure is connected to the plurality of prefabricated support structures and the prefabricated main body to form an integrated structure, that is, a fixed connection between the cast-in-place structure and the plurality of prefabricated component units is achieved. In addition, a plurality of side wall stress reinforcement bars extending in the vertical direction are provided inside the side wall body. The top end sections of the side wall stress reinforcement bars are supported by corbels and buried in the second cast-in-place structure. The side wall stress reinforcement bars improve the connection reliability between the prefabricated main body and the second cast-in-place structure, and the external force exerted on the second cast-in-place structure can be transmitted and dispersed to the side wall body through the side wall stress reinforcement bars.

[0032] In summary, the pipe gallery structure provided by the present embodiment, multiple prefabricated component units can provide installation space for the layout of pipelines, and the cast-in-place structure can realize the fixed connection between the prefabricated main body of the multiple prefabricated component units and the prefabricated support structure, and the axil reinforcement, axil stirrups and connecting stirrups can realize the further connection between the prefabricated support structure and the support corbel, and the first distribution reinforcement, the first force reinforcement and axil reinforcement can realize the further connection between the prefabricated support structure and the cast-in-place structure, and the side wall force reinforcement can realize the further connection between the prefabricated support structure and the cast-in-place structure. In this way, the connection strength between the cast-in-place structure and the multiple prefabricated component units can be improved. The pipe gallery structure has strong load-bearing capacity and seismic resistance, and a stable structure, and can provide a stable and reliable installation environment for pipeline layout. In addition, the construction procedures of the pipe gallery structure are few, which greatly shortens the construction period of the pipe gallery.

[0033] Of course, any product implementing the present application does not necessarily need to achieve all of the technical effects described above at the same time.

[0034] Other features and advantages of the present application will become apparent from the following detailed description of exemplary embodiments of the present application with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the application and, together with the description, serve to explain the principles of the application.

[0036] Figure 1 Shown is a structural schematic diagram of the pipe gallery structure provided in an embodiment of the present application;

[0037] Figure 2 The figure shows a schematic diagram of the connection structure between the prefabricated support structure and the cast-in-place structure provided in the embodiment of the present application;

[0038] Figure 3 The figure shows a schematic diagram of the structure of the prefabricated body provided in the embodiment of the present application;

[0039] Figure 4 The figure shows a schematic diagram of the structure of the prefabricated support structure provided in the embodiment of the present application;

[0040] Figure 5 Shown is a schematic structural diagram of the cast-in-place structure provided in an embodiment of the present application.

[0041] Reference numerals:

[0042] 100-cast-in-place structure, 110-first cast-in-place structure, 111-second distribution reinforcement, 112-second force reinforcement unit, 1121-first sub-reinforcement, 1122-second sub-reinforcement, 101-bending portion, 120-second cast-in-place structure, 200-prefabricated component unit, 210-prefabricated main body, 211-base, 212-side wall, 201-side wall force reinforcement, 213-supporting corbel , 214-accommodating space, 202-corbel reinforcement, 203-corbel stirrups, 220-prefabricated supporting structure, 221-main beam part, 222-axillary part, 204-axillary reinforcement, 205-axillary stirrups, 2051-connecting stirrups, 206-first distribution reinforcement, 207-first force reinforcement, 208-bending reinforcement, 2081-bending part, 209-lifting ring part, 300-waterstop plate. DETAILED DESCRIPTION

[0043] Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangement of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present application.

[0044] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present application, its application, or uses.

[0045] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.

[0046] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0047] It is obvious to those skilled in the art that various modifications and changes can be made in the present application without departing from the spirit or scope of the present application. Therefore, the present application is intended to cover modifications and changes of the present application that fall within the scope of the corresponding claims (technical solutions for protection) and their equivalents. It should be noted that the implementation methods provided in the embodiments of the present application can be combined with each other without contradiction.

[0048] It should be noted that like reference numerals and letters refer to similar items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0049] Figure 1 The figure is a schematic diagram of the structure of the pipe gallery provided in the embodiment of the present application. Figure 2The figure shows a schematic diagram of the connection structure between the prefabricated support structure and the cast-in-place structure provided in the embodiment of the present application. Figure 3 The figure is a schematic diagram of the structure of the prefabricated body provided in the embodiment of the present application. Figure 4 The figure is a schematic diagram of the structure of the prefabricated support structure provided in the embodiment of the present application. Figure 5 Shown is a schematic structural diagram of the cast-in-place structure provided in an embodiment of the present application.

[0050] Please refer to Figures 1 to 5 , the embodiment of the present application provides a pipe gallery structure, including a cast-in-place structure 100 and a plurality of prefabricated component units 200, each prefabricated component unit 200 including a prefabricated main body 210 and a prefabricated support structure 220;

[0051] The prefabricated body 210 includes a base 211, two side walls 212 and a supporting bracket 213. The two side walls 212 are fixedly connected to the base 211 at both ends of the second direction D2. An accommodating space 214 for pipe installation is provided between the base 211 and the two side walls 212. A supporting bracket 213 is fixedly connected to the top of each side wall 212.

[0052] The prefabricated support structure 220 includes a main beam 221 and two armpits 222 respectively fixedly connected to the main beam 221 at both ends in the second direction D2. One armpit 222 is arranged at the top of a corresponding supporting corbel 213. A plurality of armpit tension bars 204 extending along the first direction D1 are arranged inside the armpit 222. All armpit tension bars 204 are connected by armpit stirrups 205. Connecting stirrups 2051 are arranged at two ends of the armpit stirrups 205. The connecting stirrups 2051 extend in a vertical direction and their ends are passed through and fixed to the supporting corbel 213.

[0053] The cast-in-place structure 100 includes a first cast-in-place structure 110 and two second cast-in-place structures 120 respectively fixedly connected to the first cast-in-place structure 110 at both ends in the second direction D2, the first cast-in-place structure 110 is fixedly connected to the top of the main beam 221 of the plurality of prefabricated component units 200, the bottom of each second cast-in-place structure 120 is fixedly connected to the top surface of a supporting corbel 213, and the second cast-in-place structure 120 is fixedly connected to the side of the axilla 222 of the plurality of prefabricated component units 200 away from the other axilla 222 along the second direction D2;

[0054] A plurality of first distribution ribs 206 arranged along the second direction D2 are provided in the main beam portion 221, and all the first distribution ribs 206 are connected by first force ribs 207 extending along the second direction D2, and the end sections of the first force ribs 207 are fixedly connected to the axilla tension ribs 204, and the ends of the first force ribs 207 are fixedly connected to the bending ribs 208, and the bending ribs 208 extend in the vertical direction, and the ends of the bending ribs 208 away from the first force ribs 207 are provided with a bent portion 2081;

[0055] A plurality of vertically extending side wall reinforcement bars 201 are disposed inside the side wall body 212. The top end sections of the side wall reinforcement bars 201 are supported by corbels 213 and buried in the second cast-in-place structure 120.

[0056] The cast-in-place structure 100 is provided with a plurality of second distribution ribs 111 arranged along the second direction D2 and extending along the first direction D1. The bent portion 2081 is hooked with the second distribution ribs 111. The second direction D2 and the first direction D1 are perpendicular to each other and parallel to the horizontal plane.

[0057] In this embodiment, the pipe gallery structure includes a plurality of prefabricated component units 200 arranged along a first direction D1, each prefabricated component unit 200 includes a prefabricated main body 210, the prefabricated main body 210 includes a base 211 and two side walls 212, and an accommodating space 214 for pipe installation is provided between the two side walls 212. In this way, a channel extending along the first direction D1 can be formed between the two side walls 212 of the plurality of prefabricated component units 200, and the channel is composed of a plurality of accommodating spaces 214 for centrally arranging and installing a plurality of pipes. Each prefabricated component unit 200 also includes a prefabricated support structure 220, which includes a main beam portion 221 and two armpits 222. A plurality of armpit tension bars 204 are arranged inside the armpit 222. The armpit tension bars 204 can improve the bearing capacity and seismic resistance of the armpit 222 along the first direction D1, and all the armpit tension bars 204 are connected by armpit stirrups 205. The armpit stirrups 205 connect all the armpit tension bars 204 inside the armpit 222 into a whole, and the armpit stirrups 205 further enhance the strength and tensile performance of the armpit 222; a supporting corbel 213 is fixedly connected to the top of each side wall 212, and the armpit 222 and the supporting corbel 213 are connected one by one. Correspondingly, the axilla 222 is arranged at the top of the corresponding supporting corbel 213, wherein the two ends of the axilla stirrup 205 are provided with connecting stirrups 2051. In actual implementation, the connecting stirrup 2051 and the axilla stirrup 205 are an integrated steel bar body, and the connecting stirrup 2051 is an extended section of the axilla stirrup 205; the connecting stirrup 2051 extends in the vertical direction and its end is penetrated through the supporting corbel 213, so that the axilla 222 is fixedly connected with the supporting corbel 213 through the axilla tension bar 204, the axilla stirrup 205 and the connecting stirrup 2051, that is, the fixed connection between the prefabricated support structure 220 and the prefabricated main body 210 in each prefabricated component unit 200 is realized. In specific implementation, the prefabricated main body 210 and the prefabricated support structure 220 are both prefabricated components. After the plurality of prefabricated component units 200 of the pipe gallery structure are arranged along the first direction D1 , the cast-in-place structure 100 is formed by pouring concrete on top of the plurality of prefabricated component units 200 .

[0058] The cast-in-place structure 100 includes a first cast-in-place structure 110. After casting and solidification, the first cast-in-place structure 110 is fixedly solidified with the top of the main beam 221 of the plurality of prefabricated component units 200. In addition, a plurality of first distribution bars 206 are arranged in the main beam 221. The first distribution bars 206 can improve the bearing capacity and seismic performance of the main beam 221 along the first direction D1. All the first distribution bars 206 are connected by first force bars 207 extending along the second direction D2. The first force bars 207 are fixedly connected to form a first distribution bar 206. The prefabricated support structure 220 is a whole, and the first force-bearing reinforcement 207 can improve the bearing capacity of the main beam portion 221 along the second direction D2; the end section of the first force-bearing reinforcement 207 is fixedly connected to the axil reinforcement 204, so that all the first distribution reinforcements 206, the first force-bearing reinforcement 207, the axil reinforcement 204 and the axil stirrups 205 are fixedly connected together, interwoven vertically and horizontally in the prefabricated support structure 220, and work together to form an overall force system to jointly resist external forces, thereby further enhancing the structural strength and load and vibration resistance of the prefabricated support structure 220. In addition, a bending rib 208 is provided at the end of the first force-bearing rib 207, and a bent portion 2081 is provided at the end of the bending rib 208. A plurality of second distribution ribs 111 are provided in the cast-in-place structure 100, and the bent portion 2081 is hooked with the second distribution ribs 111, that is, the bent portion 2081 is passed through the top surface of the preset support structure and buried in the first cast-in-place structure 110. In this way, a fixed connection between the main beam portion 221 and the first cast-in-place structure 110 is achieved, that is, a fixed connection between the cast-in-place structure 100 and the prefabricated support structure 220 is achieved. In addition, the external force acting on the first cast-in-place structure 110 can be dispersed to the plurality of first distribution ribs 206, the axil tension bars 204 and the axil stirrups 205 through the bent portion 2081, the bending rib 208 and the first force-bearing rib 207. The cast-in-place structure 100 also includes a second cast-in-place structure 120. After casting and solidification, the second cast-in-place structure 120 is fixedly connected to the outer sides of the armpits 222 of the multiple prefabricated component units 200, and the bottom of each second cast-in-place structure 120 is fixedly connected to the top surface of a supporting corbel 213. In this way, through the second cast-in-place structure 120, the cast-in-place structure 100 is connected to the multiple prefabricated support structures 220 and the prefabricated main body 210 to form an integrated structure, thereby realizing the fixed connection between the cast-in-place structure 100 and the multiple prefabricated component units 200. In addition, a plurality of vertically extending side wall stress reinforcement bars 201 are provided inside the side wall body 212. The top end sections of the side wall stress reinforcement bars 201 are supported by corbels 213 and buried in the second cast-in-place structure 120. The side wall stress reinforcement bars 201 improve the connection reliability between the prefabricated main body 210 and the second cast-in-place structure 120, and the external force applied to the second cast-in-place structure 120 can be transmitted and dispersed to the side wall body 212 via the side wall stress reinforcement bars 201.

[0059] In summary, in the pipe gallery structure provided by this embodiment, the plurality of prefabricated component units 200 can provide installation space for the layout of the pipelines, and the prefabricated main bodies 210 of the plurality of prefabricated component units 200 can be fixedly connected with the prefabricated support structure 220 through the cast-in-place structure 100, and the prefabricated support structure 220 can be further connected with the support bracket 213 through the axilla tension bars 204, the axilla stirrups 205 and the connecting stirrups 2051, and the first distribution bars 206, the first force bars 207, the bending bars 208 and the bent portions 208 can be connected to the prefabricated support structure 220. 1 and the second distribution reinforcement 111 are hooked to realize the further connection between the prefabricated support structure 220 and the cast-in-place structure 100, and the prefabricated support structure 220 and the cast-in-place structure 100 are further connected through the side wall force reinforcement 201. In this way, the connection strength between the cast-in-place structure 100 and the plurality of prefabricated component units 200 can be improved. The pipe gallery structure has strong load-bearing capacity and earthquake resistance, and a stable structure, which can provide a stable and reliable installation environment for pipeline layout; and the construction procedure of the pipe gallery structure is small, which greatly shortens the construction period of the pipe gallery.

[0060] See also Figure 5 In some embodiments, a plurality of second force-bearing bar units 112 and a plurality of second distribution bars 111 arranged along the second direction D2 and extending along the first direction D1 are provided in the cast-in-place structure 100. The second force-bearing bar includes a first sub-bar 1121 and a second sub-bar 1122 that are fixedly connected. In each second force-bearing bar unit 112, the first sub-bar 1121 is extended along the second direction D2, and the second sub-bar 1122 is extended along the vertical direction.

[0061] All the second distribution bars 111 located in the first cast-in-place structure 110 are fixedly connected by the first sub-bars 1121 , and all the second distribution bars 111 located in the second cast-in-place structure 120 are fixedly connected by the second sub-bars 1122 .

[0062] In this embodiment, a matrix-arranged second distribution bar 111 is provided in the cast-in-place structure 100, and the second distribution bar 111 is distributed in the first cast-in-place structure 110 and the second cast-in-place structure 120, wherein a plurality of second distribution bars 111 distributed in the first cast-in-place structure 110 are fixedly connected by the first sub-bar 1121, and the second distribution bars 111 and the first sub-bar 1121 in the first cast-in-place structure 110 are crisscrossed and fixedly connected, which can enhance the bearing capacity and seismic resistance of the first cast-in-place structure 110; a plurality of second distribution bars 111 distributed in the second cast-in-place structure 120 are fixedly connected by the first sub-bar 1121. The second distribution reinforcement 111 is fixedly connected by the second sub-rebar 1122. The second distribution reinforcement 111 and the second sub-rebar 1122 in the second cast-in-place structure 120 are criss-crossed and fixedly connected, which can enhance the bearing capacity and seismic resistance of the second cast-in-place structure 120. The first sub-rebar 1121 and the second sub-rebar 1122 are fixedly connected, so that the steel structure in the first cast-in-place structure 110 and the steel structure in the second cast-in-place structure 120 become a whole, thereby improving the structural stability between the first cast-in-place structure 110 and the second cast-in-place structure 120.

[0063] During specific implementation, a plurality of second force-bearing rib units 112 are arranged along the first direction.

[0064] See also Figure 5 In some embodiments, a bending portion 101 is provided at the end of the second sub-rebar 1122 away from the first sub-rebar 1121, and the bending portion 101 is used to hook the second distribution bar 111 near the bottom end of the second cast-in-place structure 120, thereby improving the connection reliability between the second sub-rebar 1122 and the second distribution bar 111 near the bottom end of the second cast-in-place structure 120.

[0065] See also Figure 4 In some embodiments, a plurality of corbels 202 extending along the second direction D2 are provided inside the supporting corbel 213, and all the corbels 202 are connected by corbel stirrups 203. In this way, the bearing capacity and earthquake resistance of the supporting corbel 213 are improved.

[0066] See also Figure 3 In some embodiments, the pipe gallery structure further includes a water stop plate 300 , the top end of the water stop plate 300 is passed through and fixedly connected to the second cast-in-place structure 120 , and the bottom end of the water stop plate 300 is passed through and fixedly connected to the supporting corbel 213 .

[0067] In this embodiment, the connection stability between the cast-in-place structure 100 and the corbel support is increased by the water stop plate 300. In specific implementation, when the prefabricated body 210 is prefabricated, the bottom portion of the water stop plate 300 is pre-buried in the supporting corbel 213, and the top portion of the water stop plate 300 is reserved and exposed outside the prefabricated body 210. After the cast-in-place structure 100 is cast and solidified, the top portion of the water stop plate 300 is buried in the second cast-in-place structure 120.

[0068] See also Figure 4 In some embodiments, a hanging ring portion 209 is embedded in the armpit 222 , and the hanging ring portion 209 includes a ring portion and a connecting portion fixedly connected to each other, the connecting portion is fixedly connected to the armpit stirrups 205 , and the ring portion is embedded in the second cast-in-place structure 120 .

[0069] In this embodiment, the lifting ring 209 can facilitate the lifting of the prefabricated support structure 220, and can also improve the connection strength between the armpit 222 and the cast-in-place structure 100. In specific implementation, when the prefabricated support structure 220 is prefabricated and the steel bar structure in the prefabricated support structure 220 is laid, the connection part of the lifting ring 209 is fixedly connected with the armpit reinforcement 202, and the ring part of the lifting ring 209 is reserved and exposed outside the prefabricated support structure 220. After the cast-in-place structure 100 is cast and solidified, the lifting ring 209 will be embedded in the second cast-in-place structure 120.

[0070] See also Figure 1 Based on the same inventive concept, the present application also provides a construction method for the pipe gallery structure of any of the above embodiments, including:

[0071] Step 1: prefabricate the prefabricated main body 210 and reserve a connection hole on the top surface of the supporting corbel 213;

[0072] Step 2: prefabricate the prefabricated support structure 220;

[0073] Step 3: excavate the foundation pit;

[0074] Step 4: hoist the prefabricated body 210 into the foundation pit and fix it, and inject grout into the connection hole; hoist the prefabricated support structure 220 to the top of the prefabricated body 210, and pass the connection stirrup 2051 through the connection hole to complete the assembly of a prefabricated component unit 200;

[0075] Step 5: Repeat step 4 to complete the assembly of multiple prefabricated component units 200;

[0076] Step 6: Set up the template and the second distribution rib 111, hook the bent portion 2081 with the second distribution rib 111, cast and wait for solidification to form a cast-in-place structure 100, and connect the multiple prefabricated component units 200 into one through the cast-in-place structure 100;

[0077] Step 7: Maintenance and post-processing.

[0078] In some embodiments, step two includes:

[0079] Casting of precast support structures;

[0080] The top surface of the main beam 221 and the side surface of the armpit 222 away from the other armpit 222 along the second direction D2 are roughened or chiseled, and after the roughening or chiseling, the top surface of the main beam 221 and the side surface of the armpit 222 have a convexity of not less than 5 mm.

[0081] In this embodiment, by roughening or chiseling the top surface of the main beam portion 221 and the side surface of the armpit 222 away from the other armpit 222 along the second direction D2, the connection strength between the prefabricated support structure 220 and the cast-in-place structure 300 can be improved, thereby further improving the structural stability of the tunnel structure.

[0082] The pipe gallery structure construction method provided in the embodiment of the present application has the beneficial effects of the pipe gallery structure provided in the embodiment of the present application. For details, please refer to the specific description of the pipe gallery structure in the above embodiments, and this embodiment will not be repeated here.

[0083] Although some specific embodiments of the present application have been described in detail by way of example, it should be understood by those skilled in the art that the above examples are only for illustration, not for limiting the scope of the present application. It should be understood by those skilled in the art that the above embodiments may be modified without departing from the scope and spirit of the present application. The scope of the present application is defined by the appended claims.

Claims

1. A pipe gallery structure, characterized in that: It comprises a cast-in-place structure and a plurality of prefabricated component units arranged along a first direction, each of the prefabricated component units comprising a prefabricated main body and a prefabricated supporting structure; The prefabricated body comprises a base, two side walls and a supporting corbel, the two side walls are respectively fixedly connected to the base at both ends of the second direction, an accommodating space for pipe installation is provided between the base and the two side walls, and a supporting corbel is fixedly connected to the top of each side wall; The prefabricated support structure comprises a main beam and two armpits respectively fixedly connected to the main beam at both ends in the second direction, one armpit is arranged at the top of a corresponding supporting corbel, a plurality of armpit tension bars extending along the first direction are arranged inside the armpit, all the armpit tension bars are connected by armpit stirrups, two ends of the armpit stirrups are provided with connecting stirrups, the connecting stirrups extend in a vertical direction and the ends thereof are passed through and fixed to the supporting corbel; The cast-in-place structure comprises a first cast-in-place structure and two second cast-in-place structures respectively fixedly connected to the first cast-in-place structure at both ends in the second direction, the first cast-in-place structure is fixedly connected to the top of the main beam of the plurality of prefabricated component units, the bottom of each second cast-in-place structure is fixedly connected to the top surface of a supporting corbel, and the second cast-in-place structure is fixedly connected to the side of the axils of the plurality of prefabricated component units away from the other axils along the second direction; A plurality of first distribution ribs arranged along the second direction are provided in the main beam portion, all of the first distribution ribs are connected by first force-bearing ribs extending along the second direction, the end sections of the first force-bearing ribs are fixedly connected to the axilla tensioning ribs, and the ends of the first force-bearing ribs are fixedly connected to bending ribs, the bending ribs extend in a vertical direction, and the ends of the bending ribs away from the first force-bearing ribs are provided with a bent portion; A plurality of vertically extending side wall reinforcement bars are arranged inside the side wall body, and the top ends of the side wall reinforcement bars pass through the supporting corbels and are buried in the second cast-in-place structure; The cast-in-place structure is provided with a plurality of second distribution bars arranged along a second direction and extending along a first direction, the bent portion is hooked with the second distribution bars, and the second direction and the first direction are perpendicular to each other and parallel to a horizontal plane.

2. The pipe gallery structure according to claim 1, characterized in that: The cast-in-place structure is further provided with a plurality of second stress-bearing reinforcement units, wherein the second stress-bearing reinforcement units include a first sub-rebar and a second sub-rebar that are fixedly connected, and in each second stress-bearing reinforcement unit, the first sub-rebar is extended along the second direction, and the second sub-rebar is extended along the vertical direction; All the second distribution bars located in the first cast-in-place structure are fixedly connected via the first sub-bars, and all the second distribution bars located in the second cast-in-place structure are fixedly connected via the second sub-bars.

3. The pipe gallery structure according to claim 1, characterized in that: The end of the second sub-rebar away from the first sub-rebar is provided with a bending portion, and the bending portion is used to hook the second distribution reinforcement close to the bottom end of the second cast-in-place structure.

4. The pipe gallery structure according to claim 1, characterized in that: A plurality of corbel reinforcements extending along the second direction are arranged inside the supporting corbel, and all the corbel reinforcements are connected by corbel stirrups.

5. The pipe gallery structure according to claim 1, characterized in that: It also includes a water stop plate, the top end of which is passed through and fixedly connected to the second cast-in-place structure, and the bottom end of which is passed through and fixedly connected to the supporting corbel.

6. The pipe gallery structure according to claim 1, characterized in that: A hanging ring portion is embedded in the axil, and the hanging ring portion includes a ring portion and a connecting portion that are fixedly connected to each other. The connecting portion is fixedly connected to the axil stirrups, and the ring portion is embedded in the second cast-in-place structure.

7. A construction method for a pipe gallery structure according to any one of claims 1 to 6, characterized in that: include: Step 1: prefabricate the prefabricated main body and reserve a connection hole on the top surface of the supporting corbel; Step 2: prefabricating the prefabricated support structure; Step 3: excavate the foundation pit; Step 4: hoisting the prefabricated main body into the foundation pit and fixing it, and grouting the connection hole; The prefabricated support structure is hoisted to the top of the prefabricated main body, and the connecting stirrups are inserted into the connecting holes to complete the assembly of one prefabricated component unit; Step 5, repeating step 4 to complete the assembly of multiple prefabricated component units; Step 6: erecting the formwork and the second distribution reinforcement, hooking the bent portion with the second distribution reinforcement, casting and solidifying to form the cast-in-place structure, and connecting the plurality of prefabricated component units into one through the cast-in-place structure; Step 7: Maintenance and post-processing.

8. The construction method according to claim 7, characterized in that: Step 2 includes: Casting the prefabricated support structure; The top surface of the main beam and the side surface of the armpit away from the other armpit along the second direction are roughened or chiseled, and after the roughening or chiseling, the top surface of the main beam and the side surface of the armpit have a convexity of not less than 5 mm.

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