CN112323858A - Middle court does not have post subway station structure suitable for soft soil area underground is two-layer - Google Patents
Middle court does not have post subway station structure suitable for soft soil area underground is two-layer Download PDFInfo
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- CN112323858A CN112323858A CN202011114993.7A CN202011114993A CN112323858A CN 112323858 A CN112323858 A CN 112323858A CN 202011114993 A CN202011114993 A CN 202011114993A CN 112323858 A CN112323858 A CN 112323858A
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/045—Underground structures, e.g. tunnels or galleries, built in the open air or by methods involving disturbance of the ground surface all along the location line; Methods of making them
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
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Abstract
The invention provides a middle-court column-free subway station structure suitable for two underground layers in a soft soil area, which comprises a station frame, wherein the station frame comprises a structure top plate, a structure bottom plate and two structure lining walls, two ends of the structure top plate are respectively connected with the top ends of the two structure lining walls, and two ends of the structure bottom plate are respectively connected with the bottom ends of the two structure lining walls; underground continuous walls are arranged on two sides of the station frame, and the two structural lining walls are respectively connected with the underground continuous walls on the two sides; a station platform plate is arranged above the structural bottom plate, and subway lines are arranged on two sides of the station platform plate. The stand column is omitted between the structure top plate and the structure bottom plate, so that the subway station structure can conveniently arrange the escalators, the stairs and the like, and has wide visual field and spacious space.
Description
Technical Field
The invention relates to the technical field of rail transit, in particular to a middle court columnless subway station structure suitable for two underground layers in a soft soil area.
Background
The subway station is used as a hub station of urban rail transit and a distribution point of ground passenger flow, is connected with the ground and underground passenger transport functions, and is most important in safety and stability. Meanwhile, the subway station has relatively high construction cost, so the selection of the structural form of the subway station is determined by comparing and selecting multiple schemes on the basis of safety, economy and convenience in construction. At present, the open cut subway station design scheme with obvious advantages is generally adopted at home and abroad, and the main structure of the station generally adopts a cast-in-place reinforced concrete box-type frame structure. According to the actual situation of a currently established and operated subway station, the column-free single-span box-shaped structure is only used when the width of a station standard section platform is less than 9 m; when the platform is more than 9m in width, a single-column double-span or double-column three-span box-shaped structure can be adopted according to different standard station sections of the platform in width.
For a subway station with a platform width exceeding 9m, the station structure generally adopts a structural form of a single column or double columns with longitudinal beams additionally; although the structural form of the beam, the plate, the column and the wall is reasonable in stress and economy, the space utilization rate of the platform and the station hall is greatly reduced due to the existence of a large number of structural columns, the visual field in the station is not wide, the passenger flow in the platform is not smooth, and the service level of the subway is influenced. In addition, the longitudinal beam is arranged in the station, and the arrangement of various pipelines in the station and the return of municipal pipelines are influenced.
At present, the subway station is widely designed in a form of adopting a box type frame with an economical and reasonable structure. Based on the comprehensive consideration of economy and use function, when the platform width exceeds 9m, the station will generally set up the post, makes it become single-column double-span or many posts and many strides station. Because the stand column is arranged on the platform, the arrangement of the escalator and the stairs is affected by the stand column, and the view field and the space of the station are not wide enough; in addition, the longitudinal beam at the top of the station is difficult to overturn upwards, so that inconvenience is caused to the return of municipal pipelines, and the downwards-turned top longitudinal beam and the downwards-turned middle longitudinal beam cause inconvenience to the arrangement of pipelines in the station. In view of this, many large-span non-column structural stations appear in the construction of domestic and foreign subways, and the station of the type has no obstruction to the sight of public areas and good space effect after being built. In a few developed areas, pillarless stations with large span appear, but the platform width of most of the pillarless stations is usually not more than 9m, and the middle plates of the stations are closed due to problems of system laying and the like. Particularly, in China, a large-span columnless atrium station is not built at present.
With the continuous improvement of social and economic degrees, people put forward higher requirements on the functional use, building requirements, service quality and the like of the subway station, so that a middle court columnless subway station structure suitable for two underground layers in a soft soil area is needed.
Disclosure of Invention
The invention aims to provide a middle court columnless subway station structure suitable for two underground layers in a soft soil area, which improves the stress condition of a box structure in all directions, effectively solves the problem of applicability of the middle court columnless station structure in the underground construction of the soft soil layer, creates conditions for improving decoration effect and enhancing service quality, and ensures the safety, stability and practicability of the station structure.
In order to achieve the above purpose, the invention provides the following technical scheme:
a middle court columnless subway station structure suitable for two underground layers in soft soil areas, which comprises a station frame,
the station frame comprises a structural top plate, a structural bottom plate and two structural lining walls, wherein two ends of the structural top plate are respectively connected with the top ends of the two structural lining walls, and two ends of the structural bottom plate are respectively connected with the bottom ends of the two structural lining walls; underground continuous walls are arranged on two sides of the station frame, and the two structural lining walls are respectively connected with the underground continuous walls on the two sides; a station platform plate is arranged above the structural bottom plate, and subway lines are arranged on two sides of the station platform plate.
Further, in the above subway station structure, a length direction of the station frame is parallel to a length direction of the subway line; the structure roof includes longeron, two well longerons, two first backup pads and second backup pads in two, by the one end to the other end of structure roof do in proper order: one of the top longitudinal beams, one of the first support plates, one of the center longitudinal beams, the second support plate, the other of the center longitudinal beams, the other of the first support plates, and the other of the top longitudinal beams; the length directions of the two top longitudinal beams are parallel to the length direction of the station frame, and the length directions of the two middle longitudinal beams are parallel to the length direction of the station frame; preferably, the vertical section of the first support plate is of a right trapezoid structure, the vertical section of the second support plate is of a rectangular structure, one side of the top longitudinal beam is connected with the structural lining wall, the other side of the top longitudinal beam is connected with the large end of the first support plate, the small end of the first support plate is connected with one side of the middle longitudinal beams, and two ends of the second support plate are respectively connected with the other sides of the two middle longitudinal beams; the thickness of the large end of the first supporting plate is the same as that of the top longitudinal beam, the thickness of the small end of the first supporting plate is the same as that of the middle longitudinal beam, and the thickness of the middle longitudinal beam is the same as that of the second supporting plate; preferably, the thickness of the second supporting plate is 1.0m to 1.5m, and the thickness of the large end of the first supporting plate is 1.8m to 2 m.
Furthermore, in the above subway station structure, the structure further comprises a plurality of uplift piles, wherein the bottom ends of the uplift piles are located below the structural bottom plate, and the top ends of the uplift piles are located below the station board; preferably, the uplift piles are arranged in two rows, the uplift piles in each row are arranged at intervals, the two rows of uplift piles are respectively arranged on two sides of the central line of the station frame, and the arrangement direction of the uplift piles in each row is parallel to the length direction of the station plate; two rows of uplift piles are located at 1/3 and 2/3 of the structural floor span respectively.
Furthermore, the subway station structure also comprises two structural middle plates and two edge footpaths, wherein the structural middle plates are horizontally arranged and divide the station frame into an upper layer and a lower layer; one end of each of the two structural middle plates is connected with the two structural inner lining walls respectively; the other end of each structural slab is connected with one edge footpath; the central line of each edge footpath is parallel to the length direction of the station frame.
Furthermore, in the above subway station structure, the subway station structure further comprises a middle corridor, and two ends of the middle corridor are respectively connected with the two edge walkways; preferably, a rail top air duct is arranged below each edge footpath.
Further, in the above subway station structure, a top plate is covered with soil covering above a top plate of the structure; preferably, the material of the soil covering on the top plate is light foam concrete.
Furthermore, in the subway station structure, an external hanging auxiliary structure is arranged on the outer side wall of the underground continuous wall positioned on one side of the station frame; and a newly built lining is waterproof between the externally hung auxiliary structure and the structural lining wall.
Further, in the above subway station structure, the underground continuous wall and the structural lining wall are in a superposed wall form, and the underground continuous wall and the structural lining wall are connected by a plurality of reinforcing steel bar connectors.
Further, in the above subway station structure, the vertical distance between the two edge runways is 9m to 12 m; the thickness of the edge footpath is 400-800 mm; the thickness of the middle gallery is 400-800 mm.
Further, in the above-mentioned subway station structure, two of the top longitudinal beams and two of the middle longitudinal beams are both included in the contour of the structural top plate, and preferably, the clear height of the station frame is 12m, and the clearance is 17.3 m.
The subway station structure improves the stress condition of a box structure in all directions, effectively solves the problem of applicability of the zhongting pillarless station structure in the soft soil stratum underground construction, creates conditions for improving decoration effect and enhancing service quality, and ensures the safety, stability and practicability of the station structure. The subway station atrium position sets up big space trompil, cancels the stand setting between structure roof and the structure bottom plate, makes this subway station structure can conveniently arrange automatic escalator, stair etc. and the field of vision is wide, the space is spacious.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. Wherein:
fig. 1 is a schematic vertical sectional structure of an embodiment of the present invention.
FIG. 2 is a schematic diagram of a cross-sectional structure at a plate in a structure according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a structural top plate according to an embodiment of the invention.
Description of reference numerals: 1 covering soil on a top plate; 2 a structural top plate; 21 top longitudinal beams; 22 a first support plate; 23 middle longitudinal beams; 24 a second support plate; 3 underground diaphragm wall; 4, lining the wall in a structure; 5 externally hanging an auxiliary structure; 6, an edge walkway; 7, a rail top air duct; 8 station platen; 9 a structural backing plate; 10, uplift pile resistance; 11, a steel bar connector; 12 a middle gallery; 13 structure middle plate; 14, opening a hole of the escalator; 15 ground surface.
Detailed Description
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings. The various examples are provided by way of explanation of the invention, and not limitation of the invention. In fact, it will be apparent to those skilled in the art that modifications and variations can be made in the present invention without departing from the scope or spirit thereof. For instance, features illustrated or described as part of one embodiment, can be used with another embodiment to yield a still further embodiment. It is therefore intended that the present invention encompass such modifications and variations as fall within the scope of the appended claims and equivalents thereof.
In the description of the present invention, the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are for convenience of description of the present invention only and do not require that the present invention must be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. The terms "connected," "connected," and "disposed" as used herein are intended to be broadly construed, and may include, for example, fixed and removable connections; can be directly connected or indirectly connected through intermediate components; the connection may be a wired electrical connection, a wireless electrical connection, or a wireless communication signal connection, and a person skilled in the art can understand the specific meaning of the above terms according to specific situations.
One or more examples of the invention are illustrated in the accompanying drawings. The detailed description uses numerical and letter designations to refer to features in the drawings. Like or similar designations in the drawings and description have been used to refer to like or similar parts of the invention. As used herein, the terms "first," "second," "third," and "fourth" may be used interchangeably to distinguish one component from another and are not intended to denote the position or importance of the individual components.
As shown in fig. 1 to 3, according to an embodiment of the present invention, there is provided a middle type pillarless subway station structure suitable for two floors underground in a soft soil area, the subway station structure being suitable for a subway station having a platform width (the width of a station deck 8) exceeding 9m, the subway station structure comprising a station frame excavated under or above and implemented by cast-in-place reinforced concrete, the station frame comprising a structure top plate 2, a structure bottom plate 9 and two structure interior walls 4, both ends of the structure top plate 2 being connected to top ends of the two structure interior walls 4, respectively, and both ends of the structure bottom plate 9 being connected to bottom ends of the two structure interior walls 4, respectively; underground continuous walls 3 are arranged on two sides of the station frame, the underground continuous walls 3 are parallel to the length direction of the station frame, and the two structural lining walls 4 are respectively connected with the underground continuous walls 3 on the two sides; a station board 8 is arranged above the structural bottom plate 9, and subway lines are arranged on two sides of the station board 8.
Further, as shown in fig. 2, the railway station frame further comprises two structural middle plates 13 and two edge walkways 6, wherein the structural middle plates 13 are horizontally arranged, and the station frame is divided into an upper layer and a lower layer by the structural middle plates 13; one end of each of the two structural middle plates 13 is connected with the two structural inner lining walls 4 respectively; the other end of each structural middle plate 13 is connected with an edge walkway 6; the center line of each edge walkway 6 is parallel to the length direction of the station frame.
The subway station structure is of an underground two-layer structure, a large space open hole is formed in the middle position (the structure middle plate 13 position) of the subway station structure, and a distance exists between the two structure middle plates 13. The stand column is omitted between the structure top plate 2 and the structure bottom plate 9, so that the subway station structure can conveniently arrange the escalators, the stairs and the like, and has wide visual field and spacious space.
Further, as shown in fig. 1, the length direction of the station frame is parallel to the length direction of the subway line; structure roof 2 is domes, and the top of structure roof 2 is the plane, and structure roof 2 includes longeron 21 in two roof, two, longeron 23, two first backup pad 22 and second backup pad 24, is in proper order by the one end to the other end of structure roof 2: a top longitudinal beam 21, a first support plate 22, a middle longitudinal beam 23, a second support plate 24, another middle longitudinal beam 23, another first support plate 22 and another top longitudinal beam 21;
the longitudinal direction of the two top longitudinal beams 21 is parallel to the longitudinal direction of the station frame, and the longitudinal direction of the two middle longitudinal beams 23 is parallel to the longitudinal direction of the station frame. The two top longitudinal beams 21 and the two middle longitudinal beams 23 are contained in the outline of the structural top plate 2, namely the two top longitudinal beams 21 and the two middle longitudinal beams 23 are structural hidden beams, and are used for performing fractional pouring for controlling the hydration heat of the large-volume concrete without being turned up or down.
Preferably, the vertical cross section of the first support plate 22 is a right trapezoid structure, the vertical cross section of the second support plate 24 is a vertical cross section rectangular structure, one side of the top longitudinal beam 21 is connected with the structural lining wall 4, the other side of the top longitudinal beam 21 is connected with the large end of the first support plate 22, the large end of the first support plate 22 is the lower bottom end of the right trapezoid of the vertical cross section, the small end of the first support plate 22 is connected with one side of the middle longitudinal beam 23, the small end of the first support plate 22 is the upper bottom end of the right trapezoid of the vertical cross section, and the two ends of the second support plate 24 are respectively connected with the other sides of the two middle longitudinal beams 23; the thickness of the large end of the first support plate 22 is the same as that of the top longitudinal beam 21, the thickness of the small end of the first support plate 22 is the same as that of the middle longitudinal beam 23, and the thickness of the middle longitudinal beam 23 is the same as that of the second support plate 24. The top stringer 21 and the structural interior lining wall 4 are cast simultaneously. The top longitudinal beams 21 are located right above the structural lining wall 4, partial pouring is carried out for controlling the hydration heat of mass concrete, the middle longitudinal beams 23 are arranged between the top longitudinal beams 21, the top longitudinal beams 21 and the middle longitudinal beams 23 are poured in advance, and the first supporting plate 22 and the second supporting plate 24 are respectively poured in two layers.
Preferably, the thickness of the second support plate 24 is between 1.0m and 1.5m, such as 1.0m, 1.1m, 1.2m, 1.3m, 1.4m, 1.5m, and is preferably 1.2m when considered in connection with longitudinal plate blocking; the thickness of the large end of the first support plate 22 is 1.8m to 2m, such as 1.8m, 1.85m, 1.9m, 1.95m, 2m, preferably 2 m. As shown in FIG. 3, the width L1 of the top longitudinal beam 21 is 2.2-2.6m, the width L2 of the first supporting plate 22 is 4-6m, the width L3 of the middle longitudinal beam 23 is 0.8-1.0m, and the width L4 of the second supporting plate 24 is 1.5-3m, and the above dimensional design can optimize the stress condition of the structural top plate 2.
The structural top plate 2 of the station frame is of an arch structure, the span center of the structural top plate 2 is of an arch shape, and enough in-station pipelines and decoration spaces are reserved. The midspan height of the station frame gradually transitions from 1.2m to 2m at the edge (i.e., the thickness of the small end of the first support plate 22 gradually transitions from 1.2m to 2m at the large end of the first support plate 22). So set up the atress that can effectively improve this subway station structure. Compared with a structural top plate in an arc arch shape, the arch structure of the structural top plate 2 is beneficial to building and rotating of a template, and the hydration heat influence of large-volume concrete can be reduced by casting the longitudinal beams (the top longitudinal beam 21 and the middle longitudinal beam 23) and the support plates (the first support plate 22 and the second support plate 24) in a subsection mode (respectively).
Further, the system also comprises a plurality of uplift piles 10, wherein the bottom ends of the uplift piles 10 are positioned below the structural bottom plate 9, and the top ends of the uplift piles 10 are positioned below the platform plate 8; the uplift pile 10 is not connected with the station plate 8, the station plate 8 and the structural bottom plate 9 are poured twice in engineering practice, and construction needs to be carried out after the adjacent tunnels at two ends of the station are implemented.
Preferably, the uplift piles 10 are arranged in two rows, the uplift piles 10 in each row are arranged at intervals, the two rows of uplift piles 10 are respectively arranged on two sides of the central line of the station frame, and the arrangement direction of the uplift piles 10 in each row is parallel to the length direction of the platform plate 8; the anti-floating pile 10 can improve the stress of the structural bottom plate 9, and the subway station structure can be suitable for soft soil areas. The double rows of uplift piles 10 are arranged and are respectively positioned at 1/3 and 2/3 of the span of the structural bottom plate 9, namely, the two rows of uplift piles 10 averagely divide the structural bottom plate 9 into 3 equal parts, so that the stress condition of the structural bottom plate 9 can be effectively optimized, the maximum bending moment is reduced, and the plate thickness and the steel bar quantity of the structural bottom plate 9 are correspondingly reduced.
Further, the device also comprises a middle corridor 12, wherein two ends of the middle corridor 12 are respectively connected with the two edge corridors 6; the maintainer can walk from one edge walkway 6 to the other edge walkway 6 through the middle gallery 12, so that the maintainer can conveniently overhaul the equipment, and preferably, a rail top air duct 7 is arranged below each edge walkway 6. The two edge walkways 6 and the middle gallery 12 form a flexible atrium support, which improves the stress condition of the box-type structure in all directions.
Further, a backfill layer part above the structural top plate 2 is covered with top plate earthing soil 1; preferably, the material of the covering soil 1 on the top plate is light foam concrete. The density grade of the light foam concrete, namely the concrete with lower density, is 300-3The density grade of the concrete selected by the application is 500-1000kg/m3(the density grade of the foam concrete is less than 500kg/m3When the temperature of the water is higher than the set temperature,ground collapse due to too poor a mass) compared to a density of 1200kg/m3The foam concrete can reduce the load of the top of the structure by 16-60%. So set up and to reduce earthing 1 on the roof to the pressure of station frame, improve the security. The ground surface 15 is arranged above the soil covering 1 on the top plate.
Further, an external hanging auxiliary structure 5 is arranged on the outer side wall of the underground continuous wall 3 positioned on one side of the station frame, and the external hanging auxiliary structure 5 is used for providing a setting space for equipment in the width direction when the length of the engineering land is limited; the newly built lining between the externally-hung auxiliary structure 5 and the structural lining wall 4 is waterproof, the effective working life of the waterproof material is generally 5-15 years, and underground engineering waterproofing is mainly carried out by means of self-waterproofing of a concrete structure under the design life of hundreds of years, so that the newly built lining between the externally-hung auxiliary structure 5 and the structural lining wall 4 is waterproof, and the durability and the waterproof performance of the structure are enhanced.
Further, underground continuous wall 3 and structure interior wall 4 are the coincide wall form, and underground continuous wall 3 overlaps together with structure interior wall 4 promptly, all connects through a plurality of reinforcing bar connectors 11 between the upper portion, middle part and the bottom of underground continuous wall 3 and structure interior wall 4. The slab steel bars are anchored into the underground continuous wall 3 through the reserved steel bar connector 11, and then the structural lining wall 4 and the underground continuous wall 3 form a superposed wall structure. The superposed wall structure is formed by connecting an underground continuous wall 3 (enclosure ground connecting wall) and a structural lining wall 4 (rear pouring structure lining) with two walls in one through a reinforcing steel bar connector 11, and can be used as a permanent structure stress and improve the material utilization rate.
Furthermore, the width of the atrium opening hole is changed correspondingly according to the width of the station platform plate 8 of the station, the platform width of the general island type platform is 9 m-12 m, the atrium opening hole is arranged at the middle plate 13 of the structure in the station public area, the width of the corresponding atrium opening hole is 9 m-12 m, namely the vertical distance between the two edge footpaths 6 is 9 m-12 m; the thickness of the edge walkway 6 is 400mm to 800mm, such as 400mm, 450mm, 500mm, 550mm, 600mm, 650mm, 700mm, 750mm, 800 mm; the thickness of the intermediate gallery 12 is 400mm to 800mm, such as 400mm, 450mm, 500mm, 550mm, 600mm, 650mm, 700mm, 750mm, 800 mm. The thickness can be set to save cost on the premise of ensuring the strength, the thickness of the edge walkway 6 is preferably 600mm, and the thickness of the middle walkway 12 is preferably 600 mm.
Further, the clear height of the station frame is 12m, which is the maximum distance from the bottom of the structural top plate 2 to the structural bottom plate 9; the clearance is 17.3m, clearance being the vertical distance between the structural interior lining 4 on both sides.
Further, as shown in fig. 2, escalator opening holes 14 are respectively provided at both sides in the length direction of the station frame, wherein one side is a single escalator opening hole (left side in fig. 2), and the other side is a double escalator opening hole (right side in fig. 2).
From the above description, it can be seen that the above-described embodiments of the present invention achieve the following technical effects:
the utility model provides a courtyard does not have post subway station structure suitable for soft soil area underground is two-layer, this subway station structure has improved the all-directional atress condition of box structure, has effectively solved the suitability of courtyard does not have post station structure in soft soil stratum underground construction, for promoting the fitment effect, strengthens quality of service and has created the condition, and this subway station structure has guaranteed station structure safety, stability and feasibility of implementing. The stress condition of the box-type structure in all directions is improved by the improvement measures of reducing top covering load, the top plate 2 of the arch-like structure, the superposed wall structure, the atrium soft support, arranging the double rows of uplift piles 10 and the like.
The subway station atrium position sets up big space trompil, cancels the stand setting between structure roof 2 and the structure bottom plate 9, makes this subway station structure can conveniently arrange automatic escalator, stair etc. and the field of vision is wide, the space is spacious.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A middle court columnless subway station structure suitable for two underground layers in soft soil areas is characterized by comprising a station frame,
the station frame comprises a structural top plate, a structural bottom plate and two structural lining walls, wherein two ends of the structural top plate are respectively connected with the top ends of the two structural lining walls, and two ends of the structural bottom plate are respectively connected with the bottom ends of the two structural lining walls;
underground continuous walls are arranged on two sides of the station frame, and the two structural lining walls are respectively connected with the underground continuous walls on the two sides;
a station platform plate is arranged above the structural bottom plate, and subway lines are arranged on two sides of the station platform plate.
2. A subway station structure as claimed in claim 1,
the length direction of the station frame is parallel to the length direction of the subway line;
the structure roof includes longeron, two well longerons, two first backup pads and second backup pads in two, by the one end to the other end of structure roof do in proper order:
one of the top longitudinal beams, one of the first support plates, one of the center longitudinal beams, the second support plate, the other of the center longitudinal beams, the other of the first support plates, and the other of the top longitudinal beams;
the length directions of the two top longitudinal beams are parallel to the length direction of the station frame, and the length directions of the two middle longitudinal beams are parallel to the length direction of the station frame;
preferably, the vertical section of the first supporting plate is of a right trapezoid structure, the vertical section of the second supporting plate is of a rectangular structure,
one side of the top longitudinal beam is connected with the structural lining wall, the other side of the top longitudinal beam is connected with the large end of the first supporting plate, the small end of the first supporting plate is connected with one side of the middle longitudinal beam, and two ends of the second supporting plate are respectively connected with the other sides of the two middle longitudinal beams;
the thickness of the large end of the first supporting plate is the same as that of the top longitudinal beam, the thickness of the small end of the first supporting plate is the same as that of the middle longitudinal beam, and the thickness of the middle longitudinal beam is the same as that of the second supporting plate;
preferably, the thickness of the second supporting plate is 1.0m to 1.5m, and the thickness of the large end of the first supporting plate is 1.8m to 2 m.
3. A subway station structure as claimed in claim 1,
the bottom ends of the uplift piles are positioned below the structural bottom plate, and the top ends of the uplift piles are positioned below the station bedplate;
preferably, the uplift piles are arranged in two rows, the uplift piles in each row are arranged at intervals, the two rows of uplift piles are respectively arranged on two sides of the central line of the station frame,
the arrangement direction of the uplift piles in each row is parallel to the length direction of the station plate;
two rows of uplift piles are located at 1/3 and 2/3 of the structural floor span respectively.
4. A subway station structure as claimed in claim 1,
the station frame is divided into an upper layer and a lower layer by the structural middle plates;
one end of each of the two structural middle plates is connected with the two structural inner lining walls respectively;
the other end of each structural slab is connected with one edge footpath;
the central line of each edge footpath is parallel to the length direction of the station frame.
5. A subway station structure as claimed in claim 4,
the two ends of the middle corridor are respectively connected with the two edge walkways;
preferably, a rail top air duct is arranged below each edge footpath.
6. A subway station structure as claimed in claim 1,
the upper part of the structural top plate is covered with top plate upper earthing soil;
preferably, the material of the soil covering on the top plate is light foam concrete.
7. A subway station structure as claimed in claim 1,
an external hanging auxiliary structure is arranged on the outer side wall of the underground continuous wall positioned on one side of the station frame;
and a newly built lining is waterproof between the externally hung auxiliary structure and the structural lining wall.
8. A subway station structure as claimed in claim 1,
the underground continuous wall and the structural lining wall are in a superposed wall form, and the underground continuous wall and the structural lining wall are connected through a plurality of steel bar connectors.
9. A subway station structure as claimed in claim 5,
the vertical distance between the two edge footpaths is 9-12 m;
the thickness of the edge footpath is 400-800 mm;
the thickness of the middle gallery is 400-800 mm.
10. A subway station structure as claimed in claim 2,
both of the two top stringers and both of the center stringers are contained within the contour of the structural roof panel,
preferably, the clear height of the station frame is 12m, and the clear height is 17.3 m.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
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| CN202011081399 | 2020-10-09 | ||
| CN2020110813992 | 2020-10-09 |
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| CN112323858A true CN112323858A (en) | 2021-02-05 |
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| CN202011114993.7A Pending CN112323858A (en) | 2020-10-09 | 2020-10-16 | Middle court does not have post subway station structure suitable for soft soil area underground is two-layer |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113152522A (en) * | 2021-03-09 | 2021-07-23 | 广州地铁设计研究院股份有限公司 | Arrangement structure of elevator in station hall |
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| CN113152522A (en) * | 2021-03-09 | 2021-07-23 | 广州地铁设计研究院股份有限公司 | Arrangement structure of elevator in station hall |
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Application publication date: 20210205 |