CN220521406U - Subway access & exit structure based on reserve interface - Google Patents
Subway access & exit structure based on reserve interface Download PDFInfo
- Publication number
- CN220521406U CN220521406U CN202322324753.5U CN202322324753U CN220521406U CN 220521406 U CN220521406 U CN 220521406U CN 202322324753 U CN202322324753 U CN 202322324753U CN 220521406 U CN220521406 U CN 220521406U
- Authority
- CN
- China
- Prior art keywords
- concrete
- structure based
- entrance
- subway
- exit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000004567 concrete Substances 0.000 claims description 64
- 229910000831 Steel Inorganic materials 0.000 claims description 44
- 239000010959 steel Substances 0.000 claims description 44
- 230000002787 reinforcement Effects 0.000 claims description 15
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 9
- 239000011150 reinforced concrete Substances 0.000 claims description 7
- 230000000284 resting effect Effects 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 3
- 230000008569 process Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Landscapes
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
The utility model discloses a subway entrance structure based on a reserved interface, which comprises an entrance reserved well surrounded by a ground continuous wall, wherein the lower end of the entrance reserved well is provided with a water collecting well provided with a vertical drain pipe, two sides of the entrance reserved well are respectively provided with a plurality of floors distributed along the up-down direction and poured on the ground continuous wall after being built, the floors positioned at the two sides of the entrance reserved well are staggered to be half-storey heights along the up-down direction, the bottommost stairs are arranged between the bottommost floor and the bottom of the entrance reserved well, the middle stairs are arranged between the two sides of the entrance reserved well and the upper-lower adjacent stairs, the top stairs are arranged between the topmost floor and the ground, the upper side of the entrance reserved well is provided with an exit chamber positioned on the ground, and a subway entrance is arranged in the exit process. The utility model has the advantages of convenient construction and low cost, and solves the problems of high construction cost and long construction period caused by the fact that the existing newly-built subway entrance and exit is constructed in an independent construction mode.
Description
Technical Field
The utility model relates to the technical field of subway construction, in particular to a subway entrance and exit floor slab same-place wall connection structure.
Background
In the subway construction process, due to the need of continuously expanding and preventing cities, new subway entrances and exits are sometimes required to be built at the existing subway exits, the existing mode is not provided with overall planning, new subway entrances and exits need to be re-excavated when the new subway entrances and exits are built, and in order to avoid influence on the existing entrances and exits, supporting and enclosing are required to be carried out on the existing buildings, so that the engineering cost is quite high and the construction period is long.
Disclosure of Invention
The first aim of the utility model is to provide a subway entrance structure based on a reserved interface, which is convenient to construct and low in cost, and solves the problems of high construction cost and long construction period caused by the fact that the existing newly-built subway entrance is constructed in an independent construction mode.
The second purpose of the utility model is to further provide a subway entrance and exit structure based on reserved interfaces, which is difficult to generate water seepage at the joint of new and old buildings and has high connection strength, so as to improve the immediate strength and waterproof effect of the joint when subway entrances and exits are built on the reserved interfaces.
In order to achieve the above purpose, the present utility model adopts the following technical scheme: the utility model provides a subway access & exit structure based on reserve interface, includes the access & exit reservation well that is enclosed by the diaphragm wall, access & exit reservation well lower extreme is equipped with the sump pit, and the sump pit is equipped with vertical drain pipe, the both sides of access & exit reservation well respectively are equipped with a plurality of edges that distribute in the upper and lower direction the diaphragm wall built the back and pour last floor, be located the access & exit reservation well both sides stagger half-storey building height along the upper and lower direction between the floor, be located being equipped with the bottommost stair between the bottom of floor and the access & exit reservation well, be located the access & exit reservation well both sides and be equipped with middle part stair between the upper and lower adjacent stair, be located the top stair and be equipped with the roof stair between the ground, the top of access & exit reservation well is equipped with the exit chamber that is located subaerial, is equipped with subway access & exit during the export. According to the technical scheme, the entrance reservation well for the newly built subway exit is built together when the original subway entrance is built, so that the entrance well is formed without building a diaphragm wall when the new subway entrance is built (the cost of forming an independent building at the later stage together when the building diaphragm wall forms the entrance well can be quite different), and only the land in the entrance reservation well needs to be dug out, and then a floor slab, stairs and an exit chamber are built. The construction is convenient and the construction period is short.
Preferably, the ground continuous wall is a reinforced concrete structure, the floor comprises a concrete main body and a steel reinforcement framework positioned in the concrete main body, the steel reinforcement framework comprises a plurality of transverse steel bars extending along the distribution direction of the floor and the ground continuous wall, the transverse steel bars are distributed along the horizontal direction, a groove extending along the distribution direction of the transverse steel bars is formed in one side surface of the ground continuous wall facing the floor, all the transverse steel bars extend out of the concrete main body and penetrate through the groove, upper steel bars which are simultaneously placed on all the transverse steel bars are arranged in the groove, the distance between the upper steel bars and one side surface of the ground continuous wall facing the floor is more than 12 cm, cast-in-place concrete connectors are arranged in the groove, the grooves are filled with the concrete connectors, the concrete connectors and the concrete main body are integrally cast together, the concrete connectors wrap the parts of the transverse steel bars exposed outside the concrete main body, and the parts of the transverse steel bars exposed outside the concrete main body form the framework of the concrete connectors, so that the concrete connectors are also in the reinforced concrete structure. A connecting and fixing scheme of the floor slab and the same-place wall is adopted. According to the technical scheme, the joint of the floor slab and the ground wall is continuously and uninterruptedly connected, so that the water seepage phenomenon is not easy to occur; the upper steel bar is arranged, so that the force of the action and concrete when the upward tilting trend of the transverse steel bars is dispersed can be achieved, the local collapse is avoided, the action of improving the connection driving is achieved, and the connection is more reliable.
Preferably, the lower side wall surface of the groove is horizontal, and the opening area of the groove gradually decreases from the opening end to the bottom end. In the process of pouring the floor slab to form the concrete connector, concrete can enter the groove more smoothly, and the problem that the connection strength between the concrete connector and the connecting wall is poor due to the fact that the groove cannot be filled with the concrete is avoided.
Preferably, a step is formed between the outer end surface of the concrete joint and the upper surface of the concrete body. Can improve the waterproof effect.
Preferably, the lower side wall of the groove is provided with a steel backing plate extending along the extending direction of the groove, the concrete connector is supported on the steel backing plate, and the steel backing plate is provided with a downward flanging attached to the surface of one side of the ground connecting wall, facing the floor slab. The connecting structure has the advantages that the corner wrapping effect can be achieved on the part of the diaphragm wall where the groove is formed, and therefore the connecting strength of the connecting part is achieved.
Preferably, the lower end of the lower flange is provided with a horizontal flange which is held on the lower side of the lower building. The connection strength and the convenience in constructing the mould for manufacturing the floor slab can be improved.
Preferably, the horizontal flange is cast with the concrete body. The connection strength can be improved.
Preferably, the upper side of the horizontal flange extends into the concrete body. The connection strength can be improved.
Preferably, the lower surface of the horizontal flange is located on the same plane as the lower surface of the concrete body. The convenience in subsequent decoration can be improved.
Preferably, a plurality of vertical steel bar connectors are welded on the upper surface of the horizontal folded edge, and the upper ends of the steel bar connectors are welded with the transverse steel bars. The connection strength can be improved.
Preferably, the reinforcing steel bar connectors are distributed along the extending direction of the groove, and one transverse reinforcing steel bar is welded with one reinforcing steel bar connector at most. The quantity of the steel bar connectors is small on the premise of ensuring the connection strength.
The utility model has the following beneficial effects: the construction period is short and the cost is low; the formed concrete connector is continuous along the extending direction of the joint of the floor slab and the connecting wall, so that the water leakage phenomenon is not easy to occur; the arrangement of the upper steel bars enables the transverse steel bars to be separated from the prying trend, and the force is dispersed for acting on the upper steel bars, so that local collapse is not easy to occur, the immediate strength of the connecting part is high, and the connection is more reliable.
Drawings
FIG. 1 is a schematic illustration of the present utility model;
FIG. 2 is a schematic top view of a doorway reservation well without excavation;
fig. 3 is a schematic view of a floor slab co-located wall connection.
In the figure: the floor connecting wall 1, a concrete main body 2, transverse rebars 3, upper steel bars 4, a floor-facing side surface 5 of the floor connecting wall, a concrete connector 6, a lower side wall surface 7 of a groove, an upper side surface 8 of the groove, a step 9, a steel backing plate 10, a lower flanging 11, a horizontal flanging 12, a vertical rebar connector 13, a part 14 of the transverse rebars exposed outside the concrete main body, an entrance reservation well 15, a water collecting well 16, a vertical drain pipe 17, a soil body 18, a bottommost stair 19, a middle stair 20, a roof stair 21, a floor 22, an outlet chamber 23 and a floor 24.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1 and 2, a subway entrance structure based on a reserved interface includes an entrance reserved well 15 surrounded by a diaphragm wall 1. The lower end of the entrance reservation well is provided with a water collecting well 16, the water collecting well is provided with a vertical drain pipe 17, and two sides of the entrance reservation well are respectively provided with a plurality of floor slabs 24 which are distributed along the up-down direction and are poured after the ground connection wall is built. I.e. the underground diaphragm wall is built when the subway is built, and when the subway entrance needs to be newly built in the later period, the soil 18 in the entrance reservation well is excavated, and then the floor slab on the underground diaphragm wall is connected. The floors at two sides of the entrance reservation well are staggered to be half-storey heights along the up-down direction, a bottommost stair 19 is arranged between the lowest floor and the bottom of the entrance reservation well, a middle stair 20 is arranged between the two sides of the entrance reservation well and the vertically adjacent stairs, a top plate stair 21 is arranged between the uppermost floor and the ground, an outlet chamber 23 is arranged above the entrance reservation well and is positioned on the ground 22, and subway entrances and exits are arranged during exit. The concrete connection and fixation modes of the ground connection wall and the floor slab are as follows:
the diaphragm wall is a reinforced concrete structure, the floor slab comprises a concrete main body 2 and a reinforcement cage positioned in the concrete main body, and the reinforcement cage comprises a plurality of transverse reinforcements 3 extending along the distribution direction of the floor slab and the diaphragm wall. The transverse reinforcing steel bars are distributed along the horizontal direction. The side surface of the diaphragm wall facing the floor slab is provided with grooves extending along the distribution direction of the transverse reinforcing steel bars, and all the transverse reinforcing steel bars extend out of the concrete main body and penetrate through the grooves. The groove is internally provided with upper steel bars 4 which are simultaneously placed on all the transverse steel bars, the distance between the upper steel bars and the surface 5 of the ground continuous wall facing the floor slab is more than 12 cm, the groove is internally provided with cast-in-situ concrete connectors 6, the groove is fully poured with the concrete connectors, and the concrete connectors and the concrete main body are integrally poured and formed together (concrete enters the groove to form the concrete connectors when the floor slab is poured). The concrete connector wraps the part 14 of the transverse steel bars exposed outside the concrete body, and the part of the transverse steel bars exposed outside the concrete body forms a framework of the concrete connector, so that the concrete connector is also in a reinforced concrete structure. The lower side wall surface 7 of the groove is horizontal, and the opening area of the groove becomes gradually smaller from the opening end to the bottom end so that the upper side surface 8 of the groove is an inclined surface inclined outward. A step 9 is formed between the outer end surface of the concrete joint and the upper surface of the concrete body. The lower side wall of the groove is provided with a steel backing plate 10 extending along the extending direction of the groove, the concrete connector is supported on the steel backing plate, and the steel backing plate is provided with a turndown edge 11 attached to the surface of the ground continuous wall facing one side of the floor slab. The lower end of the lower flange is provided with a horizontal flange 12 which is held on the underside of the lower building. The horizontal flange is poured with the concrete main body. The upper side of the horizontal folded edge extends into the concrete main body. The lower surface of the horizontal folded edge is positioned on the same surface with the lower surface of the concrete main body. A plurality of vertical steel bar connectors 13 are welded on the upper surface of the horizontal folded edge, and the upper ends of the steel bar connectors are welded together with the transverse steel bars. The steel bar connectors are distributed along the extending direction of the groove, and only one steel bar connector is welded on one transverse steel bar.
Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and is not intended to limit the utility model, but the present utility model is described in detail with reference to the foregoing embodiments, and it will be apparent to those skilled in the art that modifications may be made to the technical solutions described in the foregoing embodiments, or that equivalents may be substituted for some of the technical features thereof. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (10)
1. The utility model provides a subway access & exit structure based on reserve interface, its characterized in that, include the access & exit reservation well that is enclosed by the diaphragm wall, access & exit reservation well lower extreme is equipped with the sump pit, and the sump pit is equipped with vertical drain pipe, the both sides of access & exit reservation well respectively are equipped with a plurality of along upper and lower direction distribution the floor on pouring after diaphragm wall is built, lie in the access & exit reservation well both sides stagger half floor height along upper and lower direction between the floor, lie in the floor of below and be equipped with the lower part stair between the bottom of access & exit reservation well, lie in the passageway reservation well both sides and be equipped with middle part stair between the upper and lower adjacent stair, lie in the floor of top and be equipped with the roof stair between the ground, the top of access & exit reservation well is equipped with the exit chamber that lies in subaerial, is equipped with subway access & exit during the export.
2. The subway entrance structure based on reserved interfaces according to claim 1, wherein the underground continuous wall is a reinforced concrete structure, the floor slab comprises a concrete main body and a reinforcement cage positioned in the concrete main body, the reinforcement cage comprises a plurality of transverse reinforcements extending along the distribution direction of the floor slab and the underground continuous wall, the transverse reinforcements are distributed along the horizontal direction, a groove extending along the distribution direction of the transverse reinforcements is formed in one side surface of the underground continuous wall facing the floor slab, all the transverse reinforcements extend out of the concrete main body and penetrate into the groove, upper steel bars simultaneously resting on all the transverse reinforcements are arranged in the groove, the distance between the upper steel bars and the surface of the underground continuous wall facing one side of the floor slab is more than 12 cm, cast-in-place concrete connectors are arranged in the groove, the concrete connectors and the concrete main body are integrally cast and molded together, the concrete connectors wrap the parts of the transverse reinforcements exposed outside the concrete main body, and the parts of the transverse reinforcements outside the concrete main body form the reinforcement cage of the concrete connectors, so that the reinforced concrete connectors are also in a reinforced concrete structure.
3. The subway entrance structure based on the reserved interface according to claim 2, wherein the lower side wall surface of the groove is horizontal, and the opening area of the groove is gradually reduced from the opening end to the bottom end.
4. A subway entrance structure based on a reserved interface according to claim 3, wherein a step is formed between the outer end surface of the concrete connector and the upper surface of the concrete body.
5. The subway entrance structure based on reserved interfaces according to claim 2, 3 or 4, wherein a steel backing plate extending along the extending direction of the groove is arranged on the lower side wall of the groove, the concrete connector is supported on the steel backing plate, and the steel backing plate is provided with a downward flanging attached to the surface of one side of the ground connecting wall, which faces the floor slab.
6. The subway entrance structure based on the reserved interface according to claim 5, wherein the lower end of the downward flanging is provided with a horizontal flanging which is supported on the lower side of the lower building.
7. The subway entrance structure based on a reserved interface according to claim 6, wherein the horizontal flange is cast with the concrete body.
8. The subway entrance structure based on the reserved interface according to claim 6, wherein the upper side of the horizontal flange extends into the concrete body.
9. The subway entrance structure based on the reserved interface according to claim 8, wherein the lower surface of the horizontal flange is located on the same plane as the lower surface of the concrete body.
10. The subway entrance structure based on the reserved interface as set forth in claim 6, wherein a plurality of vertical reinforcing steel bar connectors are welded on the upper surface of the horizontal folded edge, and the upper ends of the reinforcing steel bar connectors are welded with the transverse reinforcing steel bars.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322324753.5U CN220521406U (en) | 2023-08-29 | 2023-08-29 | Subway access & exit structure based on reserve interface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322324753.5U CN220521406U (en) | 2023-08-29 | 2023-08-29 | Subway access & exit structure based on reserve interface |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220521406U true CN220521406U (en) | 2024-02-23 |
Family
ID=89938547
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322324753.5U Active CN220521406U (en) | 2023-08-29 | 2023-08-29 | Subway access & exit structure based on reserve interface |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220521406U (en) |
-
2023
- 2023-08-29 CN CN202322324753.5U patent/CN220521406U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107558603B (en) | Assembled building structure system and construction method thereof | |
| CN111749275B (en) | Cover-excavation top-down underground passage structure and construction method thereof | |
| CN113697640A (en) | Finished hoistway of integrally assembled elevator added in existing multi-story building and construction method | |
| CN220521406U (en) | Subway access & exit structure based on reserve interface | |
| CN113737936A (en) | Connecting structure and construction method of prefabricated combined duplex balcony | |
| CN113481944A (en) | Dam surface hole connection girder supporting structure and construction method | |
| CN116464060A (en) | Construction method for accelerating high-span region structure at high-low span position of basement bottom plate | |
| CN214832749U (en) | Novel inner supporting structure for foundation pit | |
| CN212956576U (en) | Confined space high fill roadbed side slope foam concrete's reinforced structure | |
| CN213867830U (en) | Prefabricated part for foundation pit of elevator shaft | |
| CN209260748U (en) | A kind of stepped tower crane | |
| CN112095617A (en) | Deep pit supporting structure in foundation pit and construction method thereof | |
| CN210263127U (en) | A panel modular unit and reinforced earth retaining wall for reinforced earth retaining wall | |
| JP3122850B2 (en) | Construction method of building with basement floor with steel pipe pile foundation | |
| CN209412844U (en) | A kind of assembled resin concrete drainage ditch | |
| CN208136828U (en) | Narrow river Retaining Wall Reinforcement device | |
| CN220521407U (en) | New building of subway access & exit is with former building connection structure | |
| CN112324176A (en) | Transformation method for additionally installing escalator on existing passenger tunnel and station house upright post co-building structure | |
| CN218990240U (en) | Side mold system at deep pit of foundation slab | |
| CN215483802U (en) | Plug-in type prefabricated wall panel | |
| CN214657277U (en) | Filling type counterweight anti-floating structure for basement bottom plate | |
| CN214784106U (en) | Assembled foundation ground construction structure | |
| CN216810022U (en) | Mounting structure of outer elevator of high-rise building | |
| CN216142467U (en) | Assembled integral prefabricated toilet | |
| CN212505680U (en) | Rib beam type closed cutting U-shaped groove structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |