Prefabricated subway station

Abstract

The present invention relates to the field of subway construction, and in particular to an assembled subway station, comprising a bottom layer component, a middle layer component and a top layer component, wherein the bottom layer component comprises a first middle member and two first lateral members, the two first lateral members are respectively connected to both sides of the first middle member, the middle layer component comprises a second middle member and two second lateral members, the two second lateral members are respectively connected to both sides of the second middle member, an air duct is arranged on the second lateral member, the top layer component comprises a third middle member and two third lateral members, the two third lateral members are respectively connected to both sides of the two third middle members, the top end of the second lateral member is connected to the bottom end of the third lateral member, the bottom end of the second lateral member is connected to the top end of the first lateral member, the production quality of the bottom layer component, the middle layer component and the top layer component is higher than that of cast-in-place components, and the construction efficiency of prefabricated components that can be assembled on site is higher, and the number of construction personnel on site can also be reduced.

Description

Technical Field

[0001] The invention relates to the field of subway construction, and in particular to an assembled subway station. Background Art

[0002] The existing subway station buildings are generally constructed in the form of on-site casting, that is, building formwork, tying steel bars, pouring concrete, and after the concrete solidifies, the concrete and steel bars together form reinforced concrete components to serve as the floor slabs, pillars or wall panels of the subway station. However, on-site casting requires a lot of labor, the on-site working conditions are poor, the impact on the surrounding environment is large, and the construction period is long. In addition, the on-site cast structure is greatly affected by factors such as construction technology level, maintenance conditions, weather and temperature, and the quality of concrete is difficult to control. Summary of the invention

[0003] In order to solve the above problems, the purpose of the present invention is to provide a prefabricated subway station to solve the problems of the existing subway stations that the construction time is long, the resources are much consumed and the casting quality is uncontrollable.

[0004] Based on this, the present invention provides an assembled subway station, comprising:

[0005] A bottom component, comprising a first middle member and two first lateral members, wherein the two first lateral members are respectively connected to two sides of the first middle member;

[0006] A middle layer assembly, comprising a second middle member and two second lateral members, wherein the two second lateral members are respectively connected to two sides of the second middle member, and the second lateral members are provided with air ducts;

[0007] A top component, comprising a third middle member and two third lateral members, wherein the two third lateral members are respectively connected to two sides of the two third middle members;

[0008] The top end of the second lateral member is connected to the top and bottom ends of the third lateral member, and the top and bottom ends of the second lateral member are connected to the top end of the first lateral member.

[0009] Preferably, a first notch is provided between the inner wall surface and the side surface of the first intermediate component, so that a first step structure is formed on the side surface of the first intermediate component, and a first clamping block matching the shape of the first notch is provided on the first lateral member, and the first clamping block is clamped in the first notch and presses the first step structure.

[0010] Preferably, a second notch is provided between the bottom surface and the side surface of the second intermediate member, so that a second step structure is formed on the side surface of the second intermediate member, and a second clamping block matching the shape of the second notch is provided on the second lateral member, the second clamping block is clamped in the second notch, and the second step structure presses the second clamping block.

[0011] Preferably, a third notch is provided between the bottom surface and the side surface of the third intermediate component, so that a third step structure is formed on the side surface of the third intermediate component, and a third clamping block matching the shape of the third notch is provided on the third lateral member, the third clamping block is clamped in the third notch, and the third step structure presses the third clamping block.

[0012] Preferably, a first connecting groove is provided at the bottom end of the second lateral member, and a first connecting block matching the shape of the first connecting groove is provided at the top end of the first lateral member, and the first connecting block is plugged into the first connecting groove.

[0013] Preferably, a second connecting block is provided at the top end of the second lateral member, a second connecting groove matching the shape of the second connecting block is provided at the bottom end of the third lateral member, and the second connecting block is plugged into the second connecting groove.

[0014] Preferably, a first gap is left between the outer wall surface of the first lateral member and the underground continuous wall, a second gap is left between the outer wall surface of the second lateral member and the underground continuous wall, and a third gap is left between the outer wall surface of the third lateral member and the underground continuous wall; the first gap, the second gap and the third gap are filled with plain concrete.

[0015] Preferably, the second lateral member comprises a supporting structure, a bearing plate and an inclined plate, the fixed end of the bearing plate is fixedly connected to the inner wall surface of the supporting structure, one end of the inclined plate is fixedly connected to the inner wall surface of the supporting structure, and the other end is connected to the free end of the bearing plate, so that the cross-sections of the supporting structure, the bearing plate and the inclined plate form a triangle, and the air duct is provided between the supporting structure, the bearing plate and the inclined plate;

[0016] The top end of the supporting structure is connected to the bottom end of the third lateral member, the bottom end of the supporting structure is connected to the top end of the first lateral member, and the free end of the bearing plate is connected to the side of the second intermediate member.

[0017] Preferably, a transverse connection assembly is provided between the first intermediate member and the first lateral member, between the second intermediate member and the second lateral member, and / or between the third intermediate member and the third lateral member;

[0018] The transverse connection component includes a first connection member and a first connection groove. The first connection member is T-shaped. One side of the first connection groove is provided with a clearance notch arranged opposite to the first connection member. The first connection member is embedded in the first connection groove.

[0019] Preferably, a vertical connection assembly is provided between the bottom end of the second lateral member and the top end of the third lateral member and / or between the top end of the second lateral member and the bottom end of the first lateral member;

[0020] The vertical connection assembly includes a second connection member and a second connection groove fixedly connected to the lateral member, the cross section of the second connection member is I-shaped, the cross section of the second connection groove is T-shaped, and the side of the second connection member is embedded in the second connection groove.

[0021] The assembled subway station of the present invention comprises a bottom component, a middle component and a top component. The bottom component comprises a first middle component and two first lateral components, the two first lateral components are respectively connected to the two sides of the first middle component, the middle component comprises a second middle component and two second lateral components, the two second lateral components are respectively connected to the two sides of the second middle component, and an air duct is provided on the second lateral component. The top component comprises a third middle component and two third lateral components, the two third lateral components are respectively connected to the two sides of the two third middle components, the top end of the second lateral component is connected to the bottom end of the third lateral component, and the bottom end of the second lateral component is connected to the top end of the first lateral component. Since each component in the bottom component, the middle component and the top component is a prefabricated component, its production quality is higher than that of a cast-in-place component, and the prefabricated components that can be assembled on site have higher construction efficiency and can also reduce the number of construction personnel on site. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic diagram of the overall structure of an assembled subway station according to an embodiment of the present invention;

[0023] Figure 2 is a schematic diagram of a first intermediate component of an assembled subway station according to an embodiment of the present invention;

[0024] Figure 3 is a schematic diagram of a first lateral member of an assembled subway station according to an embodiment of the present invention;

[0025] Figure 4 is a schematic diagram of a second lateral member of an assembled subway station according to an embodiment of the present invention;

[0026] Figure 5 is a schematic diagram of a second intermediate member of an assembled subway station according to an embodiment of the present invention;

[0027] Figure 6is a schematic diagram of a third lateral member of an assembled subway station according to an embodiment of the present invention;

[0028] Figure 7 It is a schematic diagram of the third intermediate component of the assembled subway station according to an embodiment of the present invention.

[0029] Among them, 1. bottom layer component; 11. first intermediate member; 111. first notch; 12. first lateral member; 121. first clamping block; 122. first connecting block; 2. middle layer component; 21. second intermediate member; 211. second notch; 22. second lateral member; 221. second clamping block; 222. first connecting groove; 223. second connecting block; 224. supporting structure; 225. bearing plate; 226. inclined plate; 227. air duct; 3. top layer component; 31. third intermediate member; 311. third notch; 32. third lateral member; 321. third clamping block; 322. second connecting groove. DETAILED DESCRIPTION

[0030] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0031] Combination Figures 1 to 7 As shown, the prefabricated subway station of the present invention is schematically shown, including a bottom component 1, a middle component 2 and a top component 3, which are connected in sequence from bottom to top, and the combined structure formed by the three constitutes a ring of the prefabricated subway station, that is, the prefabricated subway station includes several rings of the above-mentioned combined structures.

[0032] Combination Figure 2 and Figure 3 The bottom component 1 includes a first middle member 11 and two first lateral members 12. The cross-section of the first lateral member 12 is roughly L-shaped. The two first lateral members 12 are respectively connected to the two sides of the first middle member 11, so that the cross-section of the bottom component 1 is roughly U-shaped. The adjacent first lateral members 12 and the first middle member 11 are connected by a mortise and tenon or tongue-and-groove structure.

[0033] Combination Figure 4 and Figure 5The middle layer component 2 includes a second middle member 21 and two second lateral members 22. The two second lateral members 22 are respectively connected to the two sides of the second middle member 21. The second lateral members 22 are provided with air duct 227 through holes. When the plurality of second lateral members 22 are spliced ​​with each other along the length direction of the assembled subway station, the air ducts 227 of the plurality of second lateral members 22 are connected to form a continuous air duct, so that the middle layer component 2 can not only support the assembled subway station, but also integrate the function of air duct ventilation. Moreover, the adjacent second lateral members 22 and the second middle member 21 are connected by a concave-convex tenon or tongue-and-groove structure.

[0034] Combination Figure 6 and Figure 7 The top component 3 includes a third middle member 31 and two third lateral members 32. The two third lateral members 32 are respectively connected to the two sides of the two third middle members 31. The cross-section of the top component 3 is arched. The adjacent second lateral members 22 and the second middle member 21 are connected by a mortise and tenon or tongue-and-groove structure.

[0035] The top end of the second lateral member 22 is connected to the bottom end of the third lateral member 32, and the bottom end of the second lateral member 22 is connected to the top end of the first lateral member 12, so that the bottom component 1 and the middle component 2 form a first cavity, and the middle component 2 and the top component 3 form a second cavity. The first cavity and the second cavity respectively serve as multi-layer structures of the prefabricated subway station.

[0036] Since all components in the bottom component 1, the middle component 2 and the top component 3 are prefabricated components, their production quality is higher than that of cast-in-place components, and the construction efficiency of prefabricated components that can be assembled on site is higher, and the number of construction personnel on site can be reduced. In particular, subway stations occupy a large area. In the construction of traditional cast-in-place subway stations, the demand for concrete, steel bars and formwork is large, and a large number of scaffolders, steel bar workers and other laborers are required on the construction site. Compared with traditional cast-in-place subway stations, the construction of prefabricated subway stations no longer requires the production of a large number of formworks on site, the erection of scaffolding, the tying and welding of steel bars and other related processes, which greatly reduces the labor required for on-site construction. The impact of the difficulty in recruiting workers on the on-site construction period will be greatly reduced. At the same time, it will reduce the problems of difficult to ensure construction quality and rework due to misoperation of on-site construction operators.

[0037] A first notch 111 is provided between the inner wall surface and the side surface of the first intermediate member 11, so that the side surface of the first intermediate member 11 forms a first step structure, and the cross section of the first intermediate member 11 is roughly convex, and a first clamping block 121 matching the shape of the first notch 111 is provided on the first lateral member 12, and the first clamping block 121 is clamped in the first notch 111 and presses the first step structure. Specifically, during the construction process of the bottom component 1, the first intermediate member 11 is first placed on the base, and then the first lateral member 12 is placed on one side of the first intermediate member 11. At the same time, the first clamping block 121 is located above the first step structure and presses the first step structure (at this time, the first clamping block 121 is embedded in the first notch 111), and the two first lateral members 12 can press the first intermediate member 11 to the base. A water stop structure such as a water stop strip can be set at the connection between the first intermediate member 11 and the first lateral member 12 according to actual conditions to prevent water seepage.

[0038] Similarly, a second notch 211 is provided between the bottom surface and the side surface of the second intermediate member 21, so that the side surface of the second intermediate member 21 forms a second step structure, and the cross section of the second intermediate member 21 is roughly in the shape of an inverted convex character, and a second clamping block 221 matching the shape of the second notch 211 is provided on the second lateral member 22, and the second clamping block 221 is clamped in the second notch 211, and the second step structure presses the second clamping block 221. During the construction of the middle layer component 2, the bottom end of the second lateral member 22 is now connected to the top end of the first lateral member 12, and a water stop structure such as a water stop strip can be provided at the connection between the two according to actual conditions to avoid water seepage, and then the second step structures on both sides of the second intermediate member 21 are overlapped on the second clamping block 221. A water stop structure such as a water stop strip can be provided at the connection between the second intermediate member 21 and the second lateral member 22 according to actual conditions to avoid water seepage.

[0039] A third notch 311 is provided between the bottom surface and the side surface of the third intermediate member 31, so that the side surface of the third intermediate member 31 forms a third step structure, and the cross section of the third intermediate member 31 is roughly in the shape of an inverted convex character, and a third clamping block 321 matching the shape of the third notch 311 is provided on the third lateral member 32, and the third clamping block 321 is clamped in the third notch 311, and the third step structure presses the third clamping block 321. During the construction of the top component 3, the bottom end of the third lateral member 32 is first connected to the top end of the second lateral member 22, and a water stop structure such as a water stop strip can be set at the connection between the two according to actual conditions to avoid water seepage, and then the third step structures on both sides of the third intermediate member 31 are overlapped on the third clamping block 321. A water stop structure such as a water stop strip can be set at the connection between the third intermediate member 31 and the third lateral member 32 according to actual conditions to avoid water seepage.

[0040] The bottom end of the second lateral member 22 is provided with a first connection groove 222, and the top end of the first lateral member 12 is provided with a first connection block 122 matching the shape of the first connection groove 222, and the first connection block 122 is plugged into the first connection groove 222. Correspondingly, the top end of the second lateral member 22 is provided with a second connection block 223, and the bottom end of the third lateral member 32 is provided with a second connection groove 322 matching the shape of the second connection block 223, and the second connection block 223 is plugged into the second connection groove 322. The first connection groove 222 and the first connection block 122 can enhance the connection strength between the second lateral member 22 and the first lateral member 12, and a water stop structure such as a water stop strip can be adaptively arranged on the first connection block 122 or in the first connection groove 222. The second connection groove 322 and the second connection block 223 can enhance the connection strength between the second lateral member 22 and the third lateral member 32, and a water stop structure such as a water stop strip can be adaptively arranged on the second connection block 223 or in the second connection groove 322.

[0041] A first gap is left between the outer wall surface of the first lateral member 12 and the underground continuous wall, a second gap is left between the outer wall surface of the second lateral member 22 and the underground continuous wall, and a third gap is left between the outer wall surface of the third lateral member 32 and the underground continuous wall. The first gap, the second gap and the third gap can leave a certain assembly margin for the prefabricated subway station, and the first gap, the second gap and the third gap are filled with plain concrete.

[0042] Further, the second lateral member 22 includes a support structure 224, a bearing plate 225 and an inclined plate 226, the fixed end of the bearing plate 225 is fixedly connected to the inner wall surface of the support structure 224, one end of the inclined plate 226 is fixedly connected to the inner wall surface of the support structure 224, and the other end is connected to the free end of the bearing plate 225, so that the cross-section of the support structure 224, the bearing plate 225 and the inclined plate 226 forms a triangle, the support structure 224, the bearing plate 225 and the inclined plate 226 form an arched force system, and the above-mentioned air duct 227 is provided between the support structure 224, the bearing plate 225 and the inclined plate 226. The top end of the support structure 224 is connected to the bottom end of the third lateral member 32, the bottom end of the support structure 224 is connected to the top end of the first lateral member 12, and the free end of the bearing plate 225 is connected to the side of the second intermediate member 21.

[0043] A transverse connection assembly is provided between the first middle member 11 and the first lateral member 12, between the second middle member 21 and the second lateral member 22, and / or between the third middle member 31 and the third lateral member 32. The transverse connection assembly includes a first connection piece and a first connection groove, the first connection piece is T-shaped, one side of the first connection groove is provided with a clearance notch arranged opposite to the first connection piece, and the first connection piece is embedded in the first connection groove, so as to quickly connect two adjacent members in the horizontal direction.

[0044] A vertical connection assembly is provided between the top end of the second lateral member 22 and the bottom end of the third lateral member 32 and / or between the bottom end of the second lateral member 22 and the top end of the first lateral member 12. The vertical connection assembly includes a second connection member and a second connection groove fixedly connected to the lateral member, the cross section of the second connection member is I-shaped, the cross section of the second connection groove is T-shaped, and the side of the second connection member is embedded in the second connection groove, so as to quickly connect two adjacent members in the vertical direction.

[0045] In order to control the weight of the prefabricated components, a cavity is set inside each prefabricated component according to the finite element calculation results (the prefabricated components include a first middle component 11, a first lateral component 12, a second middle component 21, a second lateral component 22, a third middle component 31 and a third lateral component 32), and the cavity rate of the prefabricated components is about 20%. Figure 1 It is a component group with a ring width of 2 meters. The prefabricated subway station is composed of several component groups spliced ​​in sequence along the length direction of the prefabricated subway station. Before the lightweight design, the total weight of each ring component group was 444 tons, of which the heaviest prefabricated component weighed 60 tons and the lightest prefabricated component weighed 10.4 tons. After the lightweight design, the average weight reduction was 19.9%, and the total weight of each ring component group was controlled at 356 tons, and the weight of the heaviest prefabricated component was controlled below 50 tons. That is, the weight reduction effect after adopting the cavity lightweight design is significant.

[0046] Figure 2 The first intermediate member 11 and Figure 7 The third intermediate components 31 are of variable cross-section design, and a plurality of closed cavities are respectively arranged inside the two components. The thinnest part of the cross-section of the first intermediate component 11 is 0.9 meters thick, and the thinnest part of the cross-section of the third intermediate component 31 is 0.8 meters thick. Figure 5 The second intermediate member 21 is in the shape of a plate, has a thickness of 0.4 meters, and has no cavity inside. Figure 3 The first lateral member 12 and Figure 6 The third lateral members 32 in the embodiment are also provided with a plurality of closed cavities for weight reduction, and the cross-sectional shape of the cavities is similar to that of the lateral members. Figure 4 A plurality of closed cavities are provided in the support structure 224 of the second lateral member 22. The first lateral member 12, the support structure 224 and the third lateral member 32 are sequentially connected to form a side wall of the assembled subway station with a thickness of 1 meter.

[0047] In summary, the prefabricated subway station of the present invention includes a bottom component 1, a middle component 2 and a top component 3. The bottom component 1 includes a first intermediate member 11 and two first lateral members 12, and the two first lateral members 12 are respectively connected to the two sides of the first intermediate member 11. The middle component 2 includes a second intermediate member 21 and two second lateral members 22, and the two second lateral members 22 are respectively connected to the two sides of the second intermediate member 21. The second lateral member 22 is provided with an air duct 227. The top component 3 includes a third intermediate member 31 and two third lateral members 32, and the two third lateral members 32 are respectively connected to the two sides of the two third intermediate members 31. The top end of the second lateral member 22 is connected to the bottom end of the third lateral member 32, and the bottom end of the second lateral member 22 is connected to the top end of the first lateral member 12. Since each component in the bottom component 1, the middle component 2 and the top component 3 is a prefabricated component, its production quality is higher than that of cast-in-place components, and the prefabricated components that can be assembled on site have higher construction efficiency and can also reduce the number of construction personnel on site.

[0048] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present invention. These improvements and substitutions should also be regarded as the scope of protection of the present invention.

Claims

1. An assembled subway station, characterized in that: include: A bottom component, comprising a first middle member and two first lateral members, wherein the two first lateral members are respectively connected to two sides of the first middle member; A middle layer assembly, comprising a second middle member and two second lateral members, wherein the two second lateral members are respectively connected to two sides of the second middle member, and the second lateral members are provided with air ducts; A top component, comprising a third middle member and two third lateral members, wherein the two third lateral members are respectively connected to two sides of the two third middle members; The top end of the second lateral member is connected to the bottom end of the third lateral member, and the bottom end of the second lateral member is connected to the top end of the first lateral member; The second lateral member comprises a supporting structure, a bearing plate and an inclined plate, wherein a fixed end of the bearing plate is fixedly connected to an inner wall surface of the supporting structure, one end of the inclined plate is fixedly connected to the inner wall surface of the supporting structure, and the other end is connected to a free end of the bearing plate, so that the cross-sections of the supporting structure, the bearing plate and the inclined plate form a triangle, and the air duct is provided between the supporting structure, the bearing plate and the inclined plate; The top end of the support structure is connected to the bottom end of the third lateral member, the bottom end of the support structure is connected to the top end of the first lateral member, and the free end of the bearing plate is connected to the side of the second intermediate member; The first intermediate member, the first lateral member, the second lateral member, the third intermediate member and the third lateral member are provided with cavities inside; the first intermediate member and the third intermediate member are both designed with variable cross-sections; A first gap is left between the outer wall surface of the first lateral component and the underground continuous wall, a second gap is left between the outer wall surface of the second lateral component and the underground continuous wall, and a third gap is left between the outer wall surface of the third lateral component and the underground continuous wall; the first gap, the second gap and the third gap are filled with plain concrete.

2. The assembled subway station according to claim 1, characterized in that: A first notch is provided between the inner wall surface and the side surface of the first intermediate component, so that the side surface of the first intermediate component forms a first step structure, and a first clamping block matching the shape of the first notch is provided on the first lateral component, and the first clamping block is clamped in the first notch and presses the first step structure.

3. The assembled subway station according to claim 1, characterized in that: A second notch is provided between the bottom surface and the side surface of the second intermediate member, so that a second step structure is formed on the side surface of the second intermediate member, and a second clamping block matching the shape of the second notch is provided on the second lateral member, the second clamping block is clamped in the second notch, and the second step structure presses the second clamping block.

4. The assembled subway station according to claim 1, characterized in that: A third notch is provided between the bottom surface and the side surface of the third intermediate component, so that a third step structure is formed on the side surface of the third intermediate component, and a third clamping block matching the shape of the third notch is provided on the third lateral component, the third clamping block is clamped in the third notch, and the third step structure presses the third clamping block.

5. The assembled subway station according to claim 1, characterized in that: A first connecting groove is disposed at the bottom end of the second lateral member, and a first connecting block matching the shape of the first connecting groove is disposed at the top end of the first lateral member, and the first connecting block is plugged into the first connecting groove.

6. The assembled subway station according to claim 1, characterized in that: A second connecting block is disposed at the top end of the second lateral member, a second connecting groove matching the shape of the second connecting block is disposed at the bottom end of the third lateral member, and the second connecting block is plugged into the second connecting groove.

7. The assembled subway station according to claim 1, characterized in that: A transverse connection assembly is provided between the first intermediate member and the first lateral member, between the second intermediate member and the second lateral member, and / or between the third intermediate member and the third lateral member; The transverse connection component includes a first connection member and a first connection groove. The first connection member is T-shaped. One side of the first connection groove is provided with a clearance notch arranged opposite to the first connection member. The first connection member is embedded in the first connection groove.

8. The assembled subway station according to claim 1, characterized in that: A vertical connection assembly is provided between the top end of the second lateral member and the bottom end of the third lateral member and / or between the bottom end of the second lateral member and the top end of the first lateral member; The vertical connection assembly includes a second connection member and a second connection groove fixedly connected to the lateral member, the cross section of the second connection member is I-shaped, the cross section of the second connection groove is T-shaped, and the side of the second connection member is embedded in the second connection groove.

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