CN111851578A - Local top plate reverse building structure of subway station for moving and changing gravity flow pipe culvert and construction method - Google Patents
Local top plate reverse building structure of subway station for moving and changing gravity flow pipe culvert and construction method Download PDFInfo
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- CN111851578A CN111851578A CN202010678986.3A CN202010678986A CN111851578A CN 111851578 A CN111851578 A CN 111851578A CN 202010678986 A CN202010678986 A CN 202010678986A CN 111851578 A CN111851578 A CN 111851578A
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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
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/02—Foundation pits
- E02D17/04—Bordering surfacing or stiffening the sides of foundation pits
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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
- E02D29/04—Making large underground spaces, e.g. for underground plants, e.g. stations of underground railways; Construction or layout thereof
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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
- E02D29/05—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 at least part of the cross-section being constructed in an open excavation or from the ground surface, e.g. assembled in a trench
- E02D29/055—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 at least part of the cross-section being constructed in an open excavation or from the ground surface, e.g. assembled in a trench further excavation of the cross-section proceeding underneath an already installed part of the structure, e.g. the roof of a tunnel
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/02—Sheet piles or sheet pile bulkheads
- E02D5/16—Auxiliary devices rigidly or detachably arranged on sheet piles for facilitating assembly
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/18—Bulkheads or similar walls made solely of concrete in situ
- E02D5/187—Bulkheads or similar walls made solely of concrete in situ the bulkheads or walls being made continuously, e.g. excavating and constructing bulkheads or walls in the same process, without joints
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Sustainable Development (AREA)
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The invention relates to a local roof inverse building structure of a subway station for moving and changing a gravity flow pipe culvert and a construction method, wherein the local roof inverse building structure is constructed in a rectangular station foundation pit, a circle of reinforced concrete continuous wall is constructed around the station, the interior of the reinforced concrete continuous wall is divided into a left area, a middle area and a right area A, B, C, and the gravity flow pipe culvert is changed and moved from a C area to a B area; the area A and the area B are separated through longitudinal plain concrete walls, the area B and the area C are separated through longitudinal arrayed SMW fender piles, the front side and the rear side of the area B are provided with the SMW fender piles which are transversely arrayed, and the top of a rectangular enclosure structure formed by the plain concrete walls on the left side of the area B, the SMW fender piles on the right side of the area B and the SMW fender piles on the front side and the rear side is provided with a crown beam. The construction method has the advantages of simple construction process, reasonable construction method conversion and simple structural system, effectively constructs a local station foundation pit enclosure system, realizes the safety of roof inverse building, permanent pipe culvert transfer and soil covering construction in the area, avoids secondary transfer and improvement and reduces the engineering investment.
Description
Technical Field
The invention belongs to the technical field of rail traffic engineering, and particularly relates to a local roof inverse building structure of a subway station for moving and changing a gravity flow pipe culvert and a construction method.
Background
The subway station construction is often accompanied by a large amount of pipeline migration and modification. Wherein, the gravity flow pipe (culvert) only depends on the self-inclined gradient gravity flow of the pipe body because of being a pressureless pipe (culvert). If the temporary transformation or the relocation transformation is carried out on the large-scale, a mechanical pump is often additionally arranged to assist the flow under pressure so as to overcome the elevation resistance, the station is relocated to the original position after the station is built, the construction period of a standard station is generally over 24 months, the relocation transformation cost is too high, and the mechanical pump can cause the backflow or overflow of the relocation pipe (culvert) due to mechanical failure in the construction period.
Disclosure of Invention
The invention aims to provide a local roof reverse construction structure of a subway station for moving and modifying a gravity flow pipe culvert and a construction method, aiming at realizing near permanent moving and modifying of the gravity flow pipe culvert in a limited station range, effectively reducing engineering investment, simplifying construction procedures and improving construction safety.
The technical scheme adopted by the invention is as follows:
move and change local roof of subway station of gravity flow pipe culvert and build structure against, its characterized in that:
the inverted building structure is built in a rectangular station foundation pit, a circle of reinforced concrete continuous wall is constructed around the station foundation pit, the interior of the station foundation pit is divided into a left area, a middle area and a right area of A, B, C, and a gravity flow pipe culvert is changed from a C area to a B area;
The area A and the area B are separated through longitudinal plain concrete walls, the area B and the area C are separated through longitudinal arrayed SMW fender piles, the front side and the rear side of the area B are provided with the SMW fender piles which are transversely arrayed, the left plain concrete wall of the area B, the right SMW fender piles and the front side and the rear side of the area B form a rectangular enclosure structure, and the top of the enclosure structure is provided with a closed crown beam.
And a retaining wall is arranged at the top of the crown beam.
Be provided with multirow transverse arrangement's upright steel pipe in enclosing the closed structure and prop, the steel pipe props the top and is provided with horizontal interim concrete beam, and interim concrete beam top sets up and constructs local roof against.
The bottom of the steel pipe support is provided with a concrete pile, and the bottom of the concrete pile extends into the position below the station bottom plate.
An oblique concrete inner support is arranged between the top beams and is positioned above the top plate of the inverted construction part.
And a plurality of layers of horizontal steel supports are arranged in the enclosing structure.
The construction method of the local roof inverse building structure of the subway station for moving and changing the gravity flow pipe culvert is characterized by comprising the following steps of:
the method comprises the following steps:
the method comprises the following steps: constructing and setting out, and constructing a reinforced concrete continuous wall along the periphery of a station foundation pit;
step two: constructing a plain concrete wall along the boundary of the area A and the area B of the station foundation pit;
Step three: constructing SMW fender posts at the front, the back and the right of a station foundation pit B area;
after the SMW is formed, a circle of crown beams are constructed on the top of the plain concrete wall and the top of the SMW fender post to form a ring in a closed mode, and the crown beams are provided with retaining walls;
step four: constructing a concrete support, a steel pipe support and a lower foundation concrete pile in a station foundation pit area B; then, excavating to 0.5 m below the top plate, constructing a temporary concrete beam, and inversely building a local top plate on the temporary concrete beam; after the top plate reaches the design strength of 85%, the gravity flow pipe culvert is moved to the position above the top plate of the area B from the area C of the station foundation pit and is covered with soil, and during the period, the concrete support and the crown beam are reserved and the excavation of the area B of the station foundation pit is stopped;
step five: excavating a station foundation pit C area to 0.5 m below a top plate, chiseling a right part of a top beam, and pulling out a right SMW fender post;
step six: continuously excavating downwards from the position 0.5 m of the elevation below the top plate of the area C of the station foundation pit to the elevation of the middle plate of the station in the area C, excavating from the area C to the area B from right to left, and timely applying internal steel supports after earthwork between the top plate of the area B and the middle plate is excavated;
step seven: step six is repeated, earthwork between the middle plates of the area C and the area B is excavated to the bottom plate and supported, and the bottom plate, the side walls and the middle plate structure of the station are worked up from bottom to top after excavation to the bottom;
Step eight: and excavating the area A after the station structures in the area B and the area C are formed and constructing the station structures.
The invention has the following advantages:
the invention discloses a reverse construction structure, and relates to the technical field of simple construction procedures, reasonable construction method conversion and simple structure system. The method specifically comprises the following steps: the enclosure system of the foundation pit of the local station is effectively constructed, the top plate inverse building, the permanent pipe (culvert) moving and changing and the soil covering construction safety of the area are realized, the secondary moving and changing is avoided, and the engineering investment is reduced. Meanwhile, the inversely-built top plate under the steel pipe column jacking can provide cover plate protection for subsequent excavation and sequential building of the lower part of the station top plate.
Drawings
FIG. 1 is a schematic plan view of a local foundation pit support system of the present invention;
FIG. 2 is a schematic plan view of the local foundation pit internal bracing system of the present invention;
FIG. 3 is a schematic longitudinal sectional view of a partial foundation pit according to the present invention;
FIG. 4 is a schematic cross-sectional view of a partial inverted roof panel of the present invention;
in the figure: 1-enclosure system, 2-SMW enclosure piles, 3-plain concrete wall, 4-reinforced concrete continuous wall, 5-retaining wall, 6-crown beam, 7-concrete internal support, 8-temporary concrete beam, 9-steel pipe column, 10-gravity flow pipe culvert, 11-inverse construction local top plate, 12-concrete pile, 13-steel support, 14-station foundation pit A area, 15-station foundation pit B area, 16-station foundation pit C area, 17-ground, 18-middle plate, 19-bottom plate and 20-position before migration.
Detailed Description
The present invention will be described in detail with reference to specific embodiments.
The invention relates to a local roof inversely-built structure of a subway station for moving and changing a gravity flow pipe culvert, wherein the inversely-built structure is built in a rectangular station foundation pit, a circle of reinforced concrete continuous wall 4 is constructed around the station foundation pit, the interior of the station foundation pit is divided into a left area, a middle area and a right area A, B, C, and the gravity flow pipe culvert 10 is changed from a C area to a B area; the area A is separated from the area B through a longitudinal plain concrete wall 3, the area B is separated from the area C through longitudinal arrayed SMW fender piles 2, the front side and the rear side of the area B are provided with the SMW fender piles 2 which are transversely arrayed, the plain concrete wall 3 on the left side of the area B, the SMW fender piles 2 on the right side of the area B and the SMW fender piles 2 on the front side and the rear side of the area B form a rectangular enclosure structure, and the top of the enclosure structure is provided with a closed crown beam 6. The top of the crown beam 6 is provided with a retaining wall 5.
And the area B is an early excavation area, after the area B is excavated to be 0.5m below the station roof, the station roof is constructed, and the gravity flow pipe culvert 10 is moved to the area B of the foundation pit from the area C of the foundation pit which is not excavated. The cross-sectional features of the gravity flow culvert 10 are not limited to circular or rectangular.
Upright steel pipe that is provided with multirow transverse arrangement in enclosing the closed structure props 9, and the steel pipe props 9 tops and is provided with horizontal interim concrete beam 8, and 8 tops of interim concrete beam set up contrary local roof 11 of building. The bottom of the steel pipe support 9 is provided with a concrete pile 12, and the bottom of the concrete pile 12 extends into the lower part of a station bottom plate 19 to support the dead weight of the temporary concrete beam 8 and the reverse roof.
An inclined concrete inner support 7 is arranged between the crown beams 6 and is positioned above the top plate 11 of the inverted construction part.
The right side SMW fender post 2 is used for keeping apart and waits to move and change gravity flow pipe culvert 10, ensures the pipeline safety of station foundation ditch B district excavation to roof elevation in-process. The front and rear SMW fender post 2 is used for transmitting and balancing the internal force of the concrete internal stay 7, and the displacement and the trend of the whole fender system 1 in the horizontal direction are reduced. Plain concrete wall 3 is used for resisting the soil and water pressure in the left side un-excavation station foundation ditch A district to guarantee the safety of station foundation ditch B district excavation process in advance.
And a plurality of layers of horizontal steel supports 13 are arranged in the enclosing structure.
The construction method for the local roof inverse building structure of the subway station for moving and changing the gravity flow pipe culvert comprises the following steps:
the method comprises the following steps: constructing and setting out, and constructing a reinforced concrete continuous wall 4 along the periphery of a station foundation pit;
step two: constructing a plain concrete wall 3 along the boundary of the area A and the area B of the station foundation pit;
step three: constructing SMW fender posts 2 at the front, the back and the right of a station foundation pit area B, wherein 850mmSMW posts are adopted, and 700 multiplied by 300 multiplied by 13 multiplied by 24 mmH-shaped steel is adopted;
after the SMW is formed, a circle of crown beams 6 are constructed at the tops of the plain concrete wall 3 and the SMW fender posts 2 to form a closed ring, retaining walls 5 are arranged on the crown beams 6, and thus, a station foundation pit B area is formed by enclosing;
Step four: constructing a concrete support 7, a steel pipe support 9 and a lower foundation concrete pile 12 thereof in a station foundation pit B area; then, excavating to 0.5 m below the top plate, constructing a temporary concrete beam 8, and inversely building a local top plate 11 on the temporary concrete beam; after the top plate 11 reaches the design strength of 85%, the gravity flow pipe culvert 10 is transferred to the position above the top plate 11 of the area B from the area C of the station foundation pit and is covered with soil, and during the period, the concrete support 7 and the crown beam 6 are reserved and the excavation of the area B of the station foundation pit is stopped;
step five: then excavating a station foundation pit C area to 0.5 m below a top plate, chiseling a right part of a crown beam 6, and pulling out a right SMW fender post 2;
step six: continuously excavating downwards from the position 0.5 m higher than the top plate of the area C of the station foundation pit to the height of the middle plate of the station in the area C, excavating from the area C to the area B from right to left, and timely constructing an internal steel support 13 after excavating earth between the top plate of the area B and the middle plate to ensure safety;
step seven: step six is repeated, earthwork between the middle plates of the area C and the area B is excavated to the bottom plate and supported, and the bottom plate, the side walls and the middle plate structure of the station are worked up from bottom to top after excavation to the bottom;
step eight: and excavating the area A after the station structures in the area B and the area C are formed and constructing the station structures.
According to the invention, a station foundation pit with a relocation influence range is enclosed by the SMW fender post, the plain concrete wall and the reinforced concrete continuous wall to form an independent space to be excavated, then the steel pipe columns are arranged in the station foundation pit and are used for jacking upper load, and local roof inverse building, permanent relocation of an upper pipe (culvert) and earthing are realized, so that secondary relocation is avoided. The enclosure system formed by enclosing can guarantee the safety in the excavation of the local foundation pit and the construction of the top plate by reverse construction, and meanwhile, the top plate by reverse construction can provide cover plate protection for the subsequent construction of the earthwork and the structure below the top plate by reverse construction. The whole reverse working process is simple, the construction method conversion is reasonable, the structure system is simple, and the method has popularization value.
The invention is not limited to the examples, and any equivalent changes to the technical solution of the invention by a person skilled in the art after reading the description of the invention are covered by the claims of the invention.
Claims (7)
1. Move and change local roof of subway station of gravity flow pipe culvert and build structure against, its characterized in that:
the inverted building structure is built in a rectangular station foundation pit, a circle of reinforced concrete continuous wall (4) is constructed around the station foundation pit, the interior of the station foundation pit is divided into a left area, a middle area and a right area A, B, C, and the gravity flow pipe culvert (10) is changed from the area C to the area B;
separate through fore-and-aft plain concrete wall (3) between A district and the B district, separate through fore-and-aft lined SMW fender post (2) between B district and the C district, the front and back both sides in B district are provided with horizontal lined SMW fender post (2), the left plain concrete wall in B district (3), the SMW fender post (2) on right side and the SMW fender post (2) of front and back both sides constitute the enclosure structure of rectangle, enclosure structure top is provided with confined crown beam (6).
2. The local top plate inverse building structure of the subway station for the relocation and change of the gravity flow pipe culvert according to claim 1, wherein:
and the top of the crown beam (6) is provided with a retaining wall (5).
3. The local top plate inverse building structure of the subway station for the relocation and change of the gravity flow pipe culvert according to claim 2, wherein:
upright steel pipe that is provided with multirow transverse arrangement in enclosing the closed structure props (9), and the steel pipe props (9) top and is provided with horizontal interim concrete beam (8), sets up above interim concrete beam (8) and builds local roof (11) against.
4. The local top plate inverse building structure of the subway station for the relocation and change of the gravity flow pipe culvert according to claim 3, wherein:
the bottom of the steel pipe support (9) is provided with a concrete pile (12), and the bottom of the concrete pile (12) extends into the position below a station bottom plate (19).
5. The local top plate inverse building structure of the subway station for the relocation and change of the gravity flow pipe culvert according to claim 4, wherein:
an inclined concrete inner support (7) is arranged between the crown beams (6) and is positioned above the top plate (11) of the inverted construction part.
6. The local top plate inverse building structure of the subway station for the relocation and change of the gravity flow pipe culvert according to claim 5, wherein:
and a plurality of layers of horizontal steel supports (13) are arranged in the enclosing structure.
7. The construction method of the local roof inverse building structure of the subway station for moving and changing the gravity flow pipe culvert is characterized by comprising the following steps of:
The method comprises the following steps:
the method comprises the following steps: constructing and setting out, and constructing a reinforced concrete continuous wall (4) along the periphery of a station foundation pit;
step two: constructing a plain concrete wall (3) along the boundary of the area A and the area B of the station foundation pit;
step three: constructing SMW fender posts (2) in the front, the back and the right of a station foundation pit B area;
after the SMW is formed, a circle of crown beams (6) are constructed on the top of the plain concrete wall (3) and the top of the SMW fender post (2) to be sealed into a ring, and retaining walls (5) are arranged on the crown beams (6);
step four: constructing a concrete support (7), a steel pipe support (9) and a lower foundation concrete pile (12) thereof in a station foundation pit B area; then, excavating to 0.5 m below the top plate, constructing a temporary concrete beam (8), and inversely building a local top plate (11) on the temporary concrete beam; after the roof (11) reaches the design strength of 85%, the gravity flow pipe culvert (10) is moved to the position above the roof (11) of the area B from the area C of the station foundation pit and is covered with soil, and the concrete support (7) and the crown beam (6) are reserved in the period and excavation of the area B of the station foundation pit is stopped;
step five: then, excavating a station foundation pit C area to 0.5 m below a top plate, chiseling a right part of a crown beam (6), and pulling out a right SMW fender post (2);
step six: continuously excavating downwards from the position 0.5 m higher than the top plate of the area C of the foundation pit of the station to the height of the middle plate of the station in the area C, excavating from the area C to the area B from right to left, and timely constructing an internal steel support (13) after earthwork between the top plate of the area B and the middle plate is excavated;
Step seven: step six is repeated, earthwork between the middle plates of the area C and the area B is excavated to the bottom plate and supported, and the bottom plate, the side walls and the middle plate structure of the station are worked up from bottom to top after excavation to the bottom;
step eight: and excavating the area A after the station structures in the area B and the area C are formed and constructing the station structures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010678986.3A CN111851578B (en) | 2020-07-15 | 2020-07-15 | Construction method for local roof inverse building structure of subway station for moving and changing gravity flow pipe culvert |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010678986.3A CN111851578B (en) | 2020-07-15 | 2020-07-15 | Construction method for local roof inverse building structure of subway station for moving and changing gravity flow pipe culvert |
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| CN111851578A true CN111851578A (en) | 2020-10-30 |
| CN111851578B CN111851578B (en) | 2021-12-07 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108442382A (en) * | 2018-03-06 | 2018-08-24 | 中铁十局集团城市轨道工程有限公司 | It crosses the pressure line in-situ conservation of deep basal pit and goes along with sb. to guard him soil-baffling structure and construction method |
| CN209179010U (en) * | 2018-08-03 | 2019-07-30 | 中国电建集团华东勘测设计研究院有限公司 | A kind of municipal pipeline crosses the building enclosure of foundation pit |
| CN110258634A (en) * | 2019-06-28 | 2019-09-20 | 中铁第四勘察设计院集团有限公司 | A kind of subway station pipeline, which changes, moves device and method |
| CN110424454A (en) * | 2019-07-10 | 2019-11-08 | 中铁第四勘察设计院集团有限公司 | Build together method and the structure of building together of pipe gallery and subway station |
| CN210529712U (en) * | 2019-06-12 | 2020-05-15 | 中铁十一局集团城市轨道工程有限公司 | Construction structure for foundation pit crossing underground pipeline area |
-
2020
- 2020-07-15 CN CN202010678986.3A patent/CN111851578B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108442382A (en) * | 2018-03-06 | 2018-08-24 | 中铁十局集团城市轨道工程有限公司 | It crosses the pressure line in-situ conservation of deep basal pit and goes along with sb. to guard him soil-baffling structure and construction method |
| CN209179010U (en) * | 2018-08-03 | 2019-07-30 | 中国电建集团华东勘测设计研究院有限公司 | A kind of municipal pipeline crosses the building enclosure of foundation pit |
| CN210529712U (en) * | 2019-06-12 | 2020-05-15 | 中铁十一局集团城市轨道工程有限公司 | Construction structure for foundation pit crossing underground pipeline area |
| CN110258634A (en) * | 2019-06-28 | 2019-09-20 | 中铁第四勘察设计院集团有限公司 | A kind of subway station pipeline, which changes, moves device and method |
| CN110424454A (en) * | 2019-07-10 | 2019-11-08 | 中铁第四勘察设计院集团有限公司 | Build together method and the structure of building together of pipe gallery and subway station |
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| CN111851578B (en) | 2021-12-07 |
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