CN216198096U - Arch-broken ejection shaft structure for station by arch cover method - Google Patents
Arch-broken ejection shaft structure for station by arch cover method Download PDFInfo
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- CN216198096U CN216198096U CN202122542898.3U CN202122542898U CN216198096U CN 216198096 U CN216198096 U CN 216198096U CN 202122542898 U CN202122542898 U CN 202122542898U CN 216198096 U CN216198096 U CN 216198096U
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Abstract
The utility model provides an arch-breaking ejection shaft structure for a station by an arch cover method, wherein a shaft is communicated with an arch part of a main body of the station, a shaft wall is arranged in the shaft, and the shaft wall is rigidly connected with a second lining arch cover; a cross intermediate wall is arranged in the vertical shaft and is rigidly connected with the middle plate and the inverted arch in sequence; the cross mid-board divides the inner space of the shaft wall into a fresh air shaft, a piston air shaft I, an exhaust air shaft and a piston air shaft II; a main body internal partition wall which is positioned on the same vertical plane with the vertical shaft wall is arranged in the station main body, and a hole is formed in the main body internal partition wall in the lateral direction of the elevation position of the middle plate, so that the exhaust shaft and the piston air shaft II are communicated with the station hall layer; a hole is laterally formed in the elevation position of the inverted arch backfill layer by a partition wall in the main body, so that the fresh air shaft and the piston air shaft I are communicated with the platform layer. The method can effectively solve the problem of limited arrangement of the ventilation vertical shaft of the metro in the local plot, and has the advantages of reducing engineering investment, shortening construction period, reducing construction risk, improving ventilation effect and the like.
Description
Technical Field
The utility model belongs to the technical field of urban rail transit engineering design and construction, and particularly relates to an arch-breaking ejection shaft structure for a station by an arch cover method.
Background
The subway air shaft is mainly used for air circulation of an inner space, is also used as an emergency rescue channel in emergency, is generally arranged at the ends of two sides of a station, and belongs to necessary auxiliary facilities for subway engineering. The method is divided into the following steps according to different use functions: fresh air shaft, exhaust air shaft and piston air shaft, each function air shaft need integrate at 1 great ventilation shaft so that the construction, and inside divides into 4 independent overfire wind regions that satisfy the ventilation requirement through setting up the mid-board. According to the environmental control requirement, two ventilation vertical shafts are usually required to be arranged, a ventilation mode of new + row + double pistons is adopted, the ventilation vertical shafts are communicated with the main body through air channels with certain lengths, the lengths of the air channels are closely related to the ground position of the vertical shafts and the standing position of the main body, the piston air channels are not suitable to exceed 40m generally, otherwise, the ventilation function loss is larger when the length is longer, the construction period is longer, and the pressure in the construction period is larger.
The urban subway construction is complex in peripheral environment, generally later than urban planning construction, based on the consideration of maximizing subway service function, relieving urban ground traffic pressure and improving urban comprehensive competitiveness, station stations are often arranged in typical sections such as ground traffic jam, high population density, important public facilities, traffic connection hubs and the like, and inevitably face the situation that a ventilation shaft is in a position close to a ground well mouth and is difficult to set, particularly when planning red lines is tight, a construction is closely adjacent to a civil insurance building, a high-speed railway is worn on the side, military pipelines are changed, a ventilation design mode of a conventional shaft, a standard-length air channel and a main body is difficult to adopt, a short air channel design faces the construction risk that the shaft is converted to the air channel and the air channel is converted to the main body construction method, and a landslide or roof fall accident can be caused by carelessness.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the embodiment of the utility model provides an it encircles ejecting shaft structure to encircle method station arch, need not to set up the conventionality and throw away the wind channel and directly break the arch and go out with the shaft by the undercut station, arrange inside the station with ventilation equipment such as blast gate, fan are whole, can effectively solve subway ventilation shaft and set up the limited difficult problem of landmass, can improve the interior ventilation effect of station, improve subway service function by the very big degree because of wind channel length degenerates into zero simultaneously.
In order to achieve the purpose, the technical scheme adopted by the utility model is as follows:
the utility model provides an arch-breaking ejection shaft structure for a station by an arch cover method, which comprises a shaft and a station main body; the station main body comprises two lining arch covers, a middle plate, a middle column, side walls and an inverted arch, the two lining arch covers are rigidly connected with the side walls, the middle plate in the horizontal direction is fixedly connected between the side walls, and the middle column in the vertical direction is fixedly connected between the inverted arch and the middle plate;
the vertical shaft is communicated with the arch part of the station main body, a vertical shaft wall is arranged in the vertical shaft, and the vertical shaft wall is rigidly connected with the two lining arch covers; a cross intermediate wall is arranged in the vertical shaft and is rigidly connected with the middle plate and the inverted arch in sequence; the cross mid-board divides the internal space of the shaft wall into a fresh air shaft, a piston air shaft I, an exhaust air shaft and a piston air shaft II; a main body internal partition wall which is positioned on the same vertical plane with the vertical shaft wall is arranged in the station main body, and a hole is formed in the side direction of the main body internal partition wall at the middle plate elevation position, so that the exhaust shaft and the piston air shaft II are communicated with the station hall layer; and a hole is laterally formed in the elevation position of the inverted arch backfill layer by the partition wall in the main body, so that the fresh air shaft and the piston air shaft I are communicated with the platform layer.
Preferably, the two lining arch covers are rigidly connected with the periphery of the shaft wall through an L-shaped conversion hidden beam structure, arch foot bottom longitudinal beams are arranged below arch feet of the two lining arch covers, the L-shaped conversion hidden beam structure comprises a transverse main beam and a longitudinal secondary beam, the longitudinal secondary beam is lapped on the transverse main beam, and the transverse main beam and the two lining arch covers are lapped on the arch foot bottom longitudinal beams on two sides.
Preferably, the longitudinal secondary beam is linear, the transverse main beam is arched consistent with the shape of the two lining arch covers, and the longitudinal secondary beam and the transverse main beam both adopt a hidden beam form, so that excavation and waterproof laying are conveniently controlled.
Preferably, the middle plate is provided with a middle longitudinal beam, a primary secondary beam and a secondary beam; when the cross middle partition wall and the main body internal partition wall are perpendicular to the middle plate elevation, the cross middle partition wall and the main body internal partition wall coincide with the middle longitudinal beam, the primary secondary beam and the secondary beam on a vertical surface.
The utility model has the following beneficial effects:
the arch-breaking top-out vertical shaft structure for the station by the arch cover method is mainly suitable for complex surrounding environments with difficult permanent land acquisition and limited construction sites, particularly relates to a structure capable of fully utilizing the existing local engineering construction land to effectively solve the problem of limited subway ventilation vertical shaft arrangement when planning red line tight draft, adjacent civil construction buildings, side-crossing high-speed railways and military pipeline relocation, and has the following beneficial effects:
(1) the arch-breaking top air outlet well structure can effectively avoid planning red line adjustment, is far away from sensitive building structures, reduces early engineering investment and shortens the engineering construction period;
(2) the project construction risk can be obviously reduced by eliminating the throwing air duct, the ventilation effect in the station is improved, and the subway service function is improved;
(3) the arrangement scheme of the ejection vertical shaft of the underground excavated station by the arch cover method is innovatively provided, and the defects and the blank of the design of the ventilation vertical shaft at the present situation are overcome.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is apparent that the drawings in the following description are only some embodiments of the present invention.
Fig. 1 is a top arch plane layout diagram of a station arch-breaking ejection shaft structure in an arch cover method according to an embodiment of the utility model;
fig. 2 is a plan layout view of a plate in the station arch-breaking ejection shaft structure of the arch cover method according to the embodiment of the utility model;
fig. 3 is an inverted arch plane layout diagram of a station arch-breaking ejection shaft structure according to an arch cover method in the embodiment of the utility model;
fig. 4 is a cross sectional view of an arch breaking and ejecting shaft structure a-a of a station in an arch cover method according to an embodiment of the utility model;
fig. 5 is a cross-sectional view of a station arch-breaking ejection shaft structure B-B in the arch cover method according to the embodiment of the utility model;
fig. 6 is a C-C/D-D longitudinal section view of a station arch-breaking ejection shaft structure according to an arch cover method of the embodiment of the utility model.
Description of reference numerals:
1. a fresh air shaft; 2. a piston air shaft I; 3. an air discharge well; 4. a piston air shaft II; 5. a shaft wall; 6. a crisscross mid-partition; 7. a main body internal partition wall; 8. a middle plate; 9. a bottom arch stringer; 10. two lining arch covers; 11. a longitudinal secondary beam; 12. a transverse girder; 13. a middle longitudinal beam; 14. a secondary beam; 15. a primary secondary beam; 16. a center pillar; 17. a side wall; 18. and (4) inverting.
Detailed Description
In order to make the technical solutions of the present invention better understood, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
The embodiment provides an arch-breaking ejection shaft structure for a station by an arch cover method, which comprises a shaft and a station main body as shown in fig. 1 to 5; the station main body comprises a two-lining arch cover 10, a middle plate 8, a middle column 16, side walls 17 and an inverted arch 18, the two-lining arch cover 10 is rigidly connected with the side walls 17, the middle plate 8 in the horizontal direction is fixedly connected between the side walls 17, and the middle column 16 in the vertical direction is fixedly connected between the inverted arch 18 and the middle plate 8; the vertical shaft is communicated with the arch part of the station main body, a vertical shaft wall 5 is arranged in the vertical shaft, and the vertical shaft wall 5 is rigidly connected with a second lining arch cover 10; a cross intermediate wall 6 is arranged in the vertical shaft, and the cross intermediate wall 6 is rigidly connected with a middle plate 8 and an inverted arch 18 in sequence; the cross middle partition wall 6 divides the inner space of the vertical shaft well wall 5 into a fresh air shaft 1, a piston air shaft I2, an exhaust air shaft 3 and a piston air shaft II 4; a main body internal partition wall 7 which is positioned on the same vertical plane with the vertical shaft wall 5 is arranged in the station main body, and a hole is formed in the main body internal partition wall 7 in the side direction of the elevation position of the middle plate 8, so that the exhaust shaft 3 and the piston air shaft II 4 are communicated with the station hall layer; a hole is laterally formed in the elevation position of the backfill layer of the inverted arch 18 by the partition wall 7 in the main body, so that the fresh air shaft 1 and the piston air shaft I2 are communicated with the station layer; in the main body of the station, the space above the middle plate 8 is a station hall layer, and the space below the middle plate 8 is a station platform layer.
The two-lining arch cover 10 and the shaft wall 5 are all rigidly connected through an L-shaped conversion hidden beam structure, an arch foot bottom longitudinal beam 9 is arranged below an arch foot of the two-lining arch cover 10, the L-shaped conversion hidden beam structure comprises a transverse main beam 12 and a longitudinal secondary beam 11, the longitudinal secondary beam 11 is lapped on the transverse main beam 12, and the transverse main beam 12 and the two-lining arch cover 10 are lapped on the arch foot bottom longitudinal beams 9 on two sides. The longitudinal secondary beam 11 is linear, the transverse main beam 12 is arched consistent with the shape of the secondary lining arch cover 10, and the longitudinal secondary beam 11 and the transverse main beam 12 both adopt a hidden beam form, so that excavation and waterproof laying are convenient to control. The middle plate 8 is provided with a middle longitudinal beam 13, a primary secondary beam 15 and a secondary beam 14; when the cross intermediate wall 6 and the main body internal partition wall 7 are perpendicular to the elevation of the middle plate 8, the cross intermediate wall and the main body internal partition wall coincide with the middle longitudinal beam 13, the primary secondary beam 15 and the secondary beam 14 on a vertical plane.
The self-weight load of the shaft well wall 5 is shared by three parts of structures, one is an L-shaped conversion hidden beam structure arranged in an arch part, the L-shaped conversion hidden beam structure comprises a longitudinal secondary beam 11 and a transverse main beam 12, and the cross section sizes are respectively 1500mm multiplied by 1400mm and 1600mm multiplied by 1400 mm; the second is a primary secondary beam 15, a secondary beam 14, a middle longitudinal beam 13, a middle column 16 and a side wall 17 which are arranged on the middle plate, and the third is an inverted arch 18 arranged on a rock foundation. The straight longitudinal secondary beam 11 is lapped on the transverse main beam 12, the arched transverse main beam 12 with the same shape as the two lining arch covers 10 is lapped on the arch foot bottom longitudinal beams 9 at two sides, and the self-weight load of part of the shaft well wall 5 of the vertical well is transferred to the rock foundation for the first time; when the cross middle partition wall 6 and the main body inner partition wall 7 are hung to the elevation of the middle plate 8, the cross middle partition wall and the main body inner partition wall coincide with the middle longitudinal beams 13, the primary secondary beams 15 and the secondary beams 14 on the plane, and the dead weight load of part of the shaft well wall 5 is transmitted to the middle column 16 and the side walls 17 on two sides for the second time; the cross intermediate wall 6 is anchored with the structural steel bars of the inverted arch 18 to form rigid connection because of the functional requirement of the part needing to hang down to the elevation of the inverted arch 18, and then the self-weight load of part of the shaft well wall 5 is transferred to the rock foundation below the inverted arch 18.
According to the technical scheme, the arch-breaking ejection shaft structure for the station by the arch cover method is mainly suitable for complex surrounding environments with difficult permanent land acquisition and limited construction sites, particularly relates to the situation that when planning red line tension, building close to the inscription protection, side-through high-speed railways and military pipelines to change, the difficult problem that the ventilation shaft of the subway is limited can be effectively solved by fully utilizing the existing local engineering construction land, and the following beneficial effects are achieved: the arch-breaking top air outlet well structure can effectively avoid planning red line adjustment, is far away from sensitive building structures, reduces early engineering investment and shortens the engineering construction period; the project construction risk can be obviously reduced by eliminating the throwing air duct, the ventilation effect in the station is improved, and the subway service function is improved; the arrangement scheme of the ejection vertical shaft of the underground excavated station by the arch cover method is innovatively provided, and the defects and the blank of the design of the ventilation vertical shaft at the present situation are overcome.
The embodiments of the present invention have been described in detail through the embodiments, but the description is only exemplary of the embodiments of the present invention and should not be construed as limiting the scope of the embodiments of the present invention. The scope of protection of the embodiments of the utility model is defined by the claims. In the present invention, the technical solutions described in the embodiments of the present invention or those skilled in the art, based on the teachings of the embodiments of the present invention, design similar technical solutions to achieve the above technical effects within the spirit and the protection scope of the embodiments of the present invention, or equivalent changes and modifications made to the application scope, etc., should still fall within the protection scope covered by the patent of the embodiments of the present invention.
Claims (4)
1. An arch-breaking ejection shaft structure for a station by an arch cover method is characterized by comprising a shaft and a station main body; the station main body comprises two lining arch covers (10), a middle plate (8), a middle column (16), side walls (17) and an inverted arch (18), the two lining arch covers (10) are rigidly connected with the side walls (17), the middle plate (8) in the horizontal direction is fixedly connected between the side walls (17), and the middle column (16) in the vertical direction is fixedly connected between the inverted arch (18) and the middle plate (8);
the vertical shaft is communicated with the arch part of the station main body, a vertical shaft wall (5) is arranged in the vertical shaft, and the vertical shaft wall (5) is rigidly connected with a second lining arch cover (10); a cross intermediate wall (6) is arranged in the vertical shaft, and the cross intermediate wall (6) is rigidly connected with the middle plate (8) and the inverted arch (18) in sequence; the cross middle partition wall (6) divides the inner space of the vertical shaft well wall (5) into a fresh air well (1), a piston air well I (2), an exhaust air well (3) and a piston air well II (4); a main body internal partition wall (7) which is positioned on the same vertical plane with a vertical shaft wall (5) is arranged in the station main body, and a hole is formed in the main body internal partition wall (7) in the side direction of the elevation position of the middle plate (8) to enable the exhaust shaft (3) and the piston air shaft II (4) to be communicated with a station hall layer; and a hole is laterally formed in the elevation position of the backfill layer of the inverted arch (18) by the partition wall (7) in the main body, so that the fresh air shaft (1) and the piston air shaft I (2) are communicated with the platform layer.
2. The arch cover method station arch-breaking ejection shaft structure according to claim 1, wherein the two lining arch covers (10) are rigidly connected with the periphery of the shaft wall (5) through an L-shaped conversion hidden beam structure, the arch foot bottom longitudinal beam (9) is arranged below the arch foot of the two lining arch covers (10), the L-shaped conversion hidden beam structure comprises a transverse main beam (12) and a longitudinal secondary beam (11), the longitudinal secondary beam (11) is lapped on the transverse main beam (12), and the transverse main beam (12) and the two lining arch covers (10) are lapped on the arch longitudinal beam bottoms (9) at two sides.
3. The arch cover normal station arch breaking and ejecting shaft structure as claimed in claim 2, wherein the longitudinal secondary beam (11) is straight, the transverse main beam (12) is arched consistent with the shape of the two lining arch covers (10), and the longitudinal secondary beam (11) and the transverse main beam (12) are both in the form of hidden beams.
4. The arch-breaking ejection shaft structure for the station by the arch cover method as claimed in claim 1, wherein the middle plate (8) is provided with a middle longitudinal beam (13), a primary secondary beam (15) and a secondary beam (14); the crossed middle partition wall (6) and the main body inner partition wall (7) are vertically arranged at the elevation of the middle plate (8), and are overlapped with the middle longitudinal beam (13), the primary secondary beam (15) and the secondary beam (14) on a vertical surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122542898.3U CN216198096U (en) | 2021-10-21 | 2021-10-21 | Arch-broken ejection shaft structure for station by arch cover method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122542898.3U CN216198096U (en) | 2021-10-21 | 2021-10-21 | Arch-broken ejection shaft structure for station by arch cover method |
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| CN216198096U true CN216198096U (en) | 2022-04-05 |
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| CN202122542898.3U Active CN216198096U (en) | 2021-10-21 | 2021-10-21 | Arch-broken ejection shaft structure for station by arch cover method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113818886A (en) * | 2021-10-21 | 2021-12-21 | 中铁隧道勘测设计院有限公司 | Arch-breaking ejection shaft structure for station by arch cover method and construction method thereof |
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2021
- 2021-10-21 CN CN202122542898.3U patent/CN216198096U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113818886A (en) * | 2021-10-21 | 2021-12-21 | 中铁隧道勘测设计院有限公司 | Arch-breaking ejection shaft structure for station by arch cover method and construction method thereof |
| CN113818886B (en) * | 2021-10-21 | 2024-10-15 | 中铁隧道勘测设计院有限公司 | Arch cover method station vault breaking and shaft discharging structure and construction method thereof |
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