CN213806710U - Laminated structure for plugging reserved hole of subway station - Google Patents
Laminated structure for plugging reserved hole of subway station Download PDFInfo
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- CN213806710U CN213806710U CN202021892566.7U CN202021892566U CN213806710U CN 213806710 U CN213806710 U CN 213806710U CN 202021892566 U CN202021892566 U CN 202021892566U CN 213806710 U CN213806710 U CN 213806710U
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Abstract
The utility model discloses a superimposed structure for plugging reserved holes of subway stations, which is characterized in that reinforced concrete ring frame beams are arranged at the periphery of the reserved holes of the finished side walls of the station structure, holes between the reinforced concrete ring frame beams are blocked by splicing a plurality of bar-shaped prefabricated reinforced concrete plates, and seams between the bar-shaped prefabricated reinforced concrete plates are plugged by micro-expansion concrete; lifting lugs are arranged on the strip-shaped prefabricated reinforced concrete slab and used for lifting the strip-shaped prefabricated reinforced concrete slab during splicing; the gap between adjacent strip-shaped prefabricated reinforced concrete plates is 5-20 mm; the length of the superposition of the reinforced concrete ring frame beam and the finished station structure side wall is 10mm-50 mm. The utility model has the advantages of reasonable design reliably, can carry out the hole shutoff construction the very first time after reserving hole service function and accomplishing, to the driving of rail traffic zone hardly influence, it is little to the electromechanical installation fitment occupation time influence in back of standing.
Description
Technical Field
The utility model relates to a subway station reserves large-scale hole shutoff rail driving zone safety and construction progress guarantee, specifically is a congruent structure that is used for subway station to reserve hole shutoff.
Background
Urban rail transit has the characteristics of large transportation capacity, high speed, high efficiency, safety, environmental protection, energy conservation, land occupation and the like, and is divided into types such as subways, light rails and the like according to different transportation capacities.
Green trip, subway first. Urban rail transit is 'green traffic', and conforms to the requirements of sustainable development. Subways, which are important components of rail transit, are civil engineering. The construction of urban rail transit engineering (subway) conforms to the trend of sustainable development and is an important link in the process of urbanization. As an urban rail transit project (subway) which is vigorously developed by the nation in recent years, the method has profound significance for promoting social progress and sustainable development. The subway engineering has multiple specialties and various construction methods.
The subway station is an important traffic node on a subway line and mainly refers to a stop point for passengers to get on or off a train, which is arranged on the subway line. At present, large reserved holes such as shield starting wells, hanging-out wells, track panel wells and the like reserved in subway stations of various cities in China are plugged by a cast-in-place method, most of the large reserved holes are constructed by a support cast-in-place method, the construction period is long, and the influence time on electromechanical construction in a track area and after the stations is long. The bottom die is inevitably required to be dismantled in the cast-in-place implementation, the dismantling operation can be carried out after the cast-in-place structure reaches 100% strength, and the rail area and the post-station electromechanical installation and decoration area cannot be handed over in the period, so that the post-station construction period is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the purpose is on the one hand for hole sealing operation convenient and fast, reduces the manpower resources that the hole sealing drops into, reduces construction cost. On the other hand, the structure in the hole sealing influence range can be moved to a delivery station for construction as early as possible, the passing of a rail passing area is not influenced, and the influence of the post-station electromechanical installation and decoration period is reduced.
The purpose of the utility model is realized through the following technical scheme:
a superposed structure for plugging reserved holes of subway stations is characterized in that reinforced concrete ring frame beams are arranged on the peripheries of the reserved holes of finished station structure side walls, holes among the reinforced concrete ring frame beams are blocked by splicing a plurality of strip-shaped prefabricated reinforced concrete plates, and seams among the strip-shaped prefabricated reinforced concrete plates are plugged by micro-expansion concrete;
lifting lugs are arranged on the strip-shaped prefabricated reinforced concrete slab and used for lifting the strip-shaped prefabricated reinforced concrete slab during splicing; the gap between adjacent strip-shaped prefabricated reinforced concrete plates is 5-20 mm; the length of the superposition of the reinforced concrete ring frame beam and the finished station structure side wall is 10mm-50 mm.
As the preferred mode, the both sides of bar precast reinforced concrete board all set up the lug.
Preferably, the structure of the lifting lug comprises a stop lever and a U-shaped part; the gear lever and the U-shaped portion are both made of steel bars and are welded.
Preferably, the U-shaped part is welded at the middle part of the stop lever, and the length of the stop lever beyond the U-shaped part is 5mm-20 mm.
Preferably, the stop lever and the U-shaped part are made of steel bars with the same specification.
As a preferred mode, the prefabricated station structure further comprises a cast-in-place reinforced concrete plate, and the steel bars of the cast-in-place reinforced concrete plate are connected with the reserved steel bars of the finished station structure side wall and connected with the reserved steel bars of the strip-shaped prefabricated reinforced concrete plate.
Preferably, the gap between the adjacent strip-shaped precast reinforced concrete plates is 10 mm.
As a preferred mode, the length of the superposition of the reinforced concrete ring frame beam and the finished station structure side wall is 20-40 mm.
The utility model has the advantages that: the utility model has the advantages of reasonable design reliably, can carry out the hole shutoff construction the very first time after reserving hole service function and accomplishing, to the driving of rail traffic zone hardly influence, it is little to the electromechanical installation fitment occupation time influence in back of standing. A large amount of civil engineering structure hole sealing manpower resource costs have been practiced thrift, have reduced the cross operation with the rail row district, have reduced the operation potential safety hazard in rail row district. The method greatly shortens the post-station hand-over period of the civil engineering sealed hole, is more favorable for the post-station procedure connection, and ensures the controllable overall period of the whole line.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is one of schematic diagrams of an overlapping structure for plugging reserved holes of a subway station;
fig. 2 is a second schematic view of a superposed structure for plugging reserved holes of a subway station;
fig. 3 is a third schematic view of an overlapped structure for plugging reserved holes of a subway station;
in the figure, 1-station structure side wall, 2-reinforced concrete ring frame beam, 3-strip precast reinforced concrete plate, 4-lifting lug, 5-cast-in-place reinforced concrete plate and 6-micro expansion concrete.
Detailed Description
The technical solution of the present invention is described in further detail below with reference to the accompanying drawings, but the scope of the present invention is not limited to the following description.
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, and do not indicate or imply that the equipment or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the present application, unless expressly stated or limited otherwise, the presence of a first feature above or below a second feature may encompass direct contact of the first and second features, and may also encompass contact of the first and second features not being in direct contact, but via additional features between them. Also, the first feature being above, on or above the second feature includes the first feature being directly above and obliquely above the second feature, or merely means that the first feature is at a higher level than the second feature. Including a first feature being directly below and obliquely below a second feature, or simply indicating that the first feature is at a lesser elevation than the second feature, if present below, under or below the second feature.
The large holes or holes of the conventional subway are plugged by a support cast-in-place method, a formwork support can be disassembled after the cast-in-place concrete structure reaches 100% strength, the normal passing of a rail running area is often influenced in the plugging process, the formwork support can only be manually backed out of a station after being disassembled, time and labor are wasted, and the passing safety of the rail running area is influenced. The standing hall layer or the equipment layer is also influenced by the occupied pressure of the support, and electromechanical construction cannot be handed over in time. Adopt the utility model discloses afterwards, shortened the influence of hole shutoff to rail line district and electromechanical construction greatly, reduced a large amount of human resources and dropped into, avoided the cross operation risk.
As shown in fig. 1, the utility model provides a superimposed structure for plugging reserved holes of subway stations, the reinforced concrete ring frame beam 2 is arranged at the periphery of the reserved hole of the finished station structure side wall 1, the holes between the reinforced concrete ring frame beams 2 are blocked by splicing a plurality of bar-shaped prefabricated reinforced concrete plates 3, and the joints between the bar-shaped prefabricated reinforced concrete plates 3 are plugged by micro-expansion concrete 6;
the strip-shaped prefabricated reinforced concrete plates 3 are provided with lifting lugs 4, and the lifting lugs 4 are used for lifting the strip-shaped prefabricated reinforced concrete plates 3 during splicing; the gap between the adjacent strip-shaped precast reinforced concrete plates 3 is 5mm-20 mm; the overlapping length of the reinforced concrete ring frame beam 2 and the finished station structure side wall 1 is 10mm-50 mm.
The utility model discloses a prefabricated reinforced concrete board 3 of bar splices, and the seam adopts micro-expansion concrete 6 to carry out the shutoff, utilizes prefabricated reinforced concrete board as cast-in-place reinforced concrete board 5's die block, need not install the die block again, directly carries out the reinforcement operation on the prefabricated plate, connects original existing structure, and the cast-in-place concrete does not influence the construction of rail line district, does not influence and hands over electromechanical construction, hole sealing operation construction safety convenient and fast.
The utility model discloses a subway station reserves hole adopts the method of prefabricated and cast in situ reinforced concrete superimposed structure shutoff. The utility model is used for subway station shield constructs well, shield and hangs out the well, shield and unearthed well, section of track well etc. of starting. Comprises a prefabricated reinforced concrete plate, a lifting lug 4 and a cast-in-place reinforced concrete plate 5. The method is characterized in that: need not to set up template support system, do not influence the passing of rail way district, do not influence post-station electromechanical installation fitment construction, it is more economical, safer swift.
To the hoist and mount of bar prefabricated reinforced concrete board 3, the utility model designs a lug 4 specifically sets up as follows.
Both sides of the bar-shaped prefabricated reinforced concrete plate 3 are provided with lifting lugs 4. The lifting lug 4 structurally comprises a stop lever and a U-shaped part; the gear lever and the U-shaped portion are both made of steel bars and are welded. The U-shaped part is welded in the middle of the stop lever, and the length of the stop lever beyond the U-shaped part is 5-20 mm. The stop lever and the U-shaped part are made of reinforcing steel bars with the same specification. Through the setting, the connection strength of the lifting lugs 4 and the strip-shaped prefabricated reinforced concrete plates 3 can be ensured, and in addition, the raw material sources of the lifting lugs 4 are wide and convenient to manufacture.
The utility model discloses still include cast-in-place reinforced concrete slab 5 (see fig. 2 and fig. 3), cast-in-place reinforced concrete slab 5's reinforcing bar is connected with the station structure side wall 1 reservation reinforcing bar that has accomplished, and reserves the reinforcing bar with prefabricated reinforced concrete plate 3 of bar and is connected.
In a preferred embodiment, the gap between adjacent strip-shaped prefabricated reinforced concrete panels 3 is 10 mm.
In a preferred embodiment, the length of the reinforced concrete ring frame beam 2 overlapped with the finished station structure side wall 1 is 20mm-40 mm.
In one embodiment, the laminated structure for plugging reserved holes in subway stations comprises a side wall and a ring frame beam, wherein a reinforcing steel bar connector for later cast-in-place structural connection is reserved in the ring frame beam during construction of a main structure of the subway station, installation steps of strip-shaped prefabricated reinforced concrete plates 3 are reserved in the ring frame beam around the holes, prefabrication of the strip-shaped reinforced concrete plates is completed one month before preparation of a sealing plate, after the use function of the reserved holes is completed, the strip-shaped prefabricated reinforced concrete plates 3 are installed by a crane, gaps are filled by micro-expansion concrete 6, the prefabricated reinforced concrete serves as a bottom die, cast-in-place reinforced concrete plates 5 are constructed, and plugging of the reserved holes is achieved after the laminated structure is completed.
In another embodiment, a construction method of a superposed structure for plugging reserved holes of a subway station is disclosed, which comprises the following steps:
1. the reinforcing steel bars and the connectors which are connected by later reinforcing steel bars are reserved and embedded in the transverse direction and the vertical direction of the side wall and the ring frame beam during the construction of the station structure, the opening of the lapped prefabricated reinforced concrete plate is reserved in the ring frame beam at the periphery of the hole, a steel plate is embedded in the opening, and the concrete is prevented from cracking under pressure.
2. And checking the length and width dimensions and the number of the prefabricated plates according to the size of the reserved hole, and finishing the prefabricated production of the prefabricated reinforced concrete plate one month before the hole is blocked.
3. And immediately starting hole plugging work after the use function of the reserved hole is finished.
4. And hoisting the strip-shaped precast reinforced concrete plates 3 to the holes by using a truck crane, wherein the distance between every two precast plates is about 1 cm.
5. And after the prefabricated plates are installed, gaps between the plates are filled with micro-expansion concrete 6.
6. And (4) performing chiseling treatment on the surface of the precast slab and the surface of the original ring frame beam, and chiseling the reserved steel bar connector.
7. And 5, installing the steel bars of the cast-in-place reinforced concrete slab, connecting the cast-in-place reinforced concrete slab with the reserved steel bars of the original station structure, and connecting the cast-in-place reinforced concrete slab with the reserved steel bars of the prefabricated reinforced concrete slab.
8. And (5) waterproofing the interface of the new structure and the old structure.
9. And pouring concrete by the cast-in-situ reinforced concrete plate 5.
10. The plugging part of the hole (top plate) is constructed in a waterproof way and is connected with the original structure in a waterproof way to form a whole.
11. And backfilling the top plate, and recovering the pavement or the green belt.
The utility model has the advantages of reasonable design reliably, can carry out the hole shutoff construction the very first time after reserving hole service function and accomplishing, to the driving of rail traffic zone influence hardly, to the station back electromechanical installation fitment occupation time influence minimum. A large amount of civil engineering structure hole sealing manpower resource costs have been practiced thrift, have reduced the cross operation with the rail row district, have reduced the operation potential safety hazard in rail row district. The method greatly shortens the post-station hand-over period of the civil engineering sealed hole, is more favorable for the post-station procedure connection, and ensures the controllable overall period of the whole line.
While the preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the appended claims be interpreted as including the preferred embodiment and all such alterations and modifications as fall within the scope of the invention. The above description is only exemplary of the present invention and should not be taken as limiting, and all changes, equivalents, and improvements made within the spirit and principles of the present invention should be understood as being included in the scope of the present invention.
Claims (8)
1. The utility model provides a congruent structure for subway station reserves hole shutoff which characterized in that: arranging reinforced concrete ring frame beams at the periphery of a reserved hole of a finished station structure side wall, splicing and blocking the hole between the reinforced concrete ring frame beams by adopting a plurality of strip-shaped prefabricated reinforced concrete plates, and plugging joints between the strip-shaped prefabricated reinforced concrete plates by adopting micro-expansion concrete;
lifting lugs are arranged on the strip-shaped prefabricated reinforced concrete slab and used for lifting the strip-shaped prefabricated reinforced concrete slab during splicing; the gap between adjacent strip-shaped prefabricated reinforced concrete plates is 5-20 mm; the length of the superposition of the reinforced concrete ring frame beam and the finished station structure side wall is 10mm-50 mm.
2. The superposition structure for plugging reserved holes of subway stations as claimed in claim 1, wherein: both sides of the bar-shaped prefabricated reinforced concrete slab are provided with lifting lugs.
3. The superposition structure for plugging reserved holes of subway stations as claimed in claim 2, characterized in that: the lifting lug structurally comprises a stop lever and a U-shaped part; the gear lever and the U-shaped portion are both made of steel bars and are welded.
4. The superposition structure for plugging reserved holes of subway stations as claimed in claim 3, wherein: the U-shaped part is welded in the middle of the stop lever, and the length of the stop lever beyond the U-shaped part is 5-20 mm.
5. The superposition structure for plugging reserved holes of subway stations as claimed in claim 3 or 4, wherein: the stop lever and the U-shaped part are made of reinforcing steel bars with the same specification.
6. The superposition structure for plugging reserved holes of subway stations as claimed in claim 1, wherein: the prefabricated reinforced concrete slab comprises a prefabricated reinforced concrete slab, and is characterized by further comprising a cast-in-place reinforced concrete slab, wherein reinforcing steel bars of the cast-in-place reinforced concrete slab are connected with reserved reinforcing steel bars of the finished station structure side wall, and are connected with the reserved reinforcing steel bars of the strip-shaped prefabricated reinforced concrete slab.
7. The superposition structure for plugging reserved holes of subway stations as claimed in claim 1, wherein: the clearance between the adjacent bar precast reinforced concrete boards is 10 mm.
8. The superposition structure for plugging reserved holes of subway stations as claimed in claim 1, wherein: the length of the superposition of the reinforced concrete ring frame beam and the finished station structure side wall is 20-40 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021892566.7U CN213806710U (en) | 2020-09-02 | 2020-09-02 | Laminated structure for plugging reserved hole of subway station |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021892566.7U CN213806710U (en) | 2020-09-02 | 2020-09-02 | Laminated structure for plugging reserved hole of subway station |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113756364A (en) * | 2021-09-22 | 2021-12-07 | 济南轨道交通集团有限公司 | Non-column subway station structure and track panel construction method |
| CN113914373A (en) * | 2021-11-24 | 2022-01-11 | 中建丝路建设投资有限公司 | Post-cast strip construction method |
| CN115405070A (en) * | 2022-08-16 | 2022-11-29 | 中铁二院工程集团有限责任公司 | Installation form of track panel well hole boundary beam and station construction method |
-
2020
- 2020-09-02 CN CN202021892566.7U patent/CN213806710U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113756364A (en) * | 2021-09-22 | 2021-12-07 | 济南轨道交通集团有限公司 | Non-column subway station structure and track panel construction method |
| CN113756364B (en) * | 2021-09-22 | 2022-08-12 | 济南轨道交通集团有限公司 | Non-column subway station structure and track panel construction method |
| CN113914373A (en) * | 2021-11-24 | 2022-01-11 | 中建丝路建设投资有限公司 | Post-cast strip construction method |
| CN115405070A (en) * | 2022-08-16 | 2022-11-29 | 中铁二院工程集团有限责任公司 | Installation form of track panel well hole boundary beam and station construction method |
| CN115405070B (en) * | 2022-08-16 | 2024-01-23 | 中铁二院工程集团有限责任公司 | Installation form of track panel well hole side beam and station construction method |
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