CN116464098B - Construction method of continuous ultra-wide side-leaning hole-opening structure of subway station board - Google Patents
Construction method of continuous ultra-wide side-leaning hole-opening structure of subway station board Download PDFInfo
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- CN116464098B CN116464098B CN202310730877.5A CN202310730877A CN116464098B CN 116464098 B CN116464098 B CN 116464098B CN 202310730877 A CN202310730877 A CN 202310730877A CN 116464098 B CN116464098 B CN 116464098B
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- 238000010276 construction Methods 0.000 title claims abstract description 20
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 22
- 239000010959 steel Substances 0.000 claims abstract description 22
- 238000013461 design Methods 0.000 claims abstract description 21
- 239000004567 concrete Substances 0.000 claims abstract description 18
- 238000009412 basement excavation Methods 0.000 claims abstract description 6
- 239000011150 reinforced concrete Substances 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 12
- 230000002787 reinforcement Effects 0.000 claims description 8
- 239000002689 soil Substances 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 239000006185 dispersion Substances 0.000 claims description 3
- 229910000746 Structural steel Inorganic materials 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000009751 slip forming Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/60—Planning or developing urban green infrastructure
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- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
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- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
The invention discloses a construction method of a continuous ultra-wide side-leaning hole-opening structure of a subway station board, which relates to the technical field of underground engineering and comprises the following steps: constructing a top plate of a subway station by adopting a cover-excavation reverse construction method; digging a foundation pit to a designed elevation below a negative first-layer bottom plate, constructing a negative first-layer bottom plate structure, reserving a post-cast strip at a 1/3 position of an adjacent span of a hole-forming area for applying prestress, and erecting a temporary transverse support in the center of the hole-forming area; pouring a negative layer of steel concrete column, continuing to excavate to the designed elevation of the station structural bottom plate, and constructing the structural bottom plate and the bottom beam; pouring a negative two-layer type steel concrete column, and pouring a post-pouring belt after applying prestress to a reserved post-pouring belt position division area; after the post-cast strip reaches the design strength, removing the temporary transverse support for delivery; the invention solves the problem of concrete tension damage of the hole edge of the continuous hole ultra-wide side-by-side hole plate structure by arranging the shaped steel beam and applying prestress on the side of the continuous ultra-wide side-by-side hole plate.
Description
Technical Field
The invention relates to the technical field of underground engineering, in particular to a construction method of a continuous ultra-wide leaning edge hole structure of a subway station board.
Background
With the rapid development of modern cities, urban rail transit is increasingly developed, and requirements of people on building comfort and convenience are gradually improved. At present, a single-column double-span underground structure or a double-column three-span frame structure is often adopted in the design of a standard subway station, the stress requirement of the structure is often met by arranging a hole boundary beam in a building staircase hole, but the size of the hole is often small, if large holes are required to be arranged on a plate or holes are required to be continuously formed, the hole boundary beam size is increased or the structural plate is thickened in the traditional way so as to solve the problem that concrete at the edge of the hole is pulled to be damaged, the whole space effect of the station is not facilitated by adopting the method, and the problem that the concrete is pulled when the hole is large in width and close to a side wall is not solved.
Disclosure of Invention
The invention aims to provide a construction method of a continuous ultra-wide side-leaning hole-forming structure of a subway station board, which aims to solve the technical problems that the prior art adopts a structure board with a large hole side beam size or a thickened structure board is not beneficial to the whole space effect of a station and is not suitable for the technical problems that the hole-forming width is large and the hole-forming structure is close to a side wall.
The invention provides a construction method of a continuous ultra-wide side-leaning hole-opening structure of a subway station board, which comprises the following steps:
step 100, after traffic dispersion and site leveling are completed, constructing a top plate of the subway station by adopting a cover-excavation reverse method, and recovering roadside traffic after the top plate of the subway station reaches the design strength;
step 200, excavating a foundation pit to a designed elevation below a negative one-layer bottom plate, constructing a negative one-layer bottom plate structure, reserving a post-cast strip at a 1/3 position of an adjacent span of a hole area for applying prestress, and erecting a temporary transverse support in the center of the hole area;
step 300, pouring a negative layer of steel concrete column after the negative layer of bottom plate structure reaches the design strength, continuing to excavate to the designed elevation of the station structure bottom plate, and constructing a structure bottom plate and a bottom beam;
step 400, after the structural bottom plate reaches the design strength, pouring a negative two-layer type steel concrete column to resist the horizontal water and soil pressure, and pouring a post-pouring belt after applying prestress to a reserved post-pouring belt position dividing region;
and 500, after the post-cast strip reaches the design strength, removing the temporary transverse support and delivering the temporary transverse support for use.
As an embodiment of the present invention, in step 100, constructing a roof of a subway station specifically includes: building the enclosure structure, the upright post piles and the anti-pulling piles, and constructing the cover plate and the top beam.
As one embodiment of the present invention, the top beam is a reinforced concrete beam.
As an embodiment of the present invention, the method further comprises reserving connection nodes at positions on the upright posts corresponding to the negative first-layer bottom plate and the negative second-layer bottom plate.
In step 200, as an embodiment of the present invention, the negative one-layer backplane structure specifically includes: and (3) applying a negative first-layer bottom plate, a cross beam and a longitudinal beam, applying a middle reinforced concrete slab band between two adjacent holes, and pre-burying a pre-stress threaded pipe in the negative first-layer bottom plate.
As an implementation mode of the invention, the cross beam and the longitudinal beam in the negative one-layer bottom plate structure are all steel reinforced concrete beams.
As one embodiment of the invention, in step 200, the post-cast strip is arranged at 1/3 position of the center of the adjacent span at the left and right sides of the hole area, and the prestressed reinforcement is tensioned while ensuring that the stress of the adjacent span meets the requirement.
In step 300, the bottom beam is a reinforced concrete beam, as an embodiment of the present invention.
As an embodiment of the present invention, in step 400, the applying prestressing force to the sub-area specifically includes:
step 401, dividing the post-pouring belt position into a first pre-stress loading area and a second pre-stress loading area;
step 402, stretching the prestressed reinforcement with a first preset stress value in a first prestressed loading area, and stretching the prestressed reinforcement with a second preset stress value in a second prestressed loading area;
wherein the distance from the first pre-stress loading area to the hole area is smaller than the distance from the second pre-stress loading area to the hole area;
the first predetermined stress value is greater than the second predetermined stress value.
Compared with the prior art, the invention has the beneficial effects that:
(1) According to the invention, the top-down method is adopted for the station, the top plate of the station is preferentially applied, and road traffic is recovered after the top plate of the station reaches the design strength, so that the time for traffic break-up is greatly shortened, and the pressure of the ground traffic is relieved;
(2) According to the invention, the structural steel beam is arranged at the edge of the continuous ultra-wide side-by-edge hole plate, the prestress is applied, the structural steel beam and the structural steel column combined structure is adopted as the main body of the stress system, the problem of tensile failure of the hole edge concrete is solved by assisting the prestress, the method of resisting the tensile force by increasing the size of a component in the traditional method is improved, the use space of an underground station is increased, and the space building effect of the underground station is improved;
(3) According to the invention, the steel column is adopted to replace the concrete column, so that the bending resistance of the steel column is increased while the steel column bears vertical load, a part of water and soil pressure transmitted from the side wall can be born in the range of a hole, and the pressure born by the hole opening side member is directly reduced;
(4) The temporary transverse support is erected in the center of the hole in the construction stage, and the temporary transverse support and the reinforced concrete slab band between the holes can jointly ensure the transmission of lateral water and soil pressure, so that the problem of tension of the hole edge concrete member in the construction stage is effectively solved, and the hole edge reinforced concrete member is prevented from being damaged by tension when no prestress is applied.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a construction flow chart provided by an embodiment of the present invention;
FIG. 2 is a schematic view of a section structure of a subway station in a permanent stage provided by an embodiment of the invention;
fig. 3 is a schematic view of a negative one-layer floor plan according to an embodiment of the present invention.
Reference numerals:
1. a cover plate; 2. a top beam; 3. section steel concrete column; 4. a negative one-layer bottom plate; 5. a longitudinal beam; 6. a cross beam; 7. A bottom beam; 8. a structural bottom plate; 9. a hole area; 10. pulling-resistant piles; 11. a reinforced concrete slab band; 12. a first pre-stress loading region; 13. a second pre-stress loading region; 14. post-cast strip; 15. temporary lateral support; 16. and (5) an enclosure structure.
Detailed Description
The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown.
The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention.
All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
The embodiment of the invention provides a construction method of a continuous ultra-wide side hole structure of a subway station board, which is shown in the following figure 1, and comprises the following steps:
step 100, after traffic fluffing and site leveling are completed, constructing a top plate of the subway station by adopting a cover-excavation reverse method, and recovering roadside traffic after the top plate of the subway station reaches the design strength, so that the influence on ground traffic is reduced;
step 200, excavating a foundation pit to a designed elevation below the negative first-layer bottom plate 4, applying a negative first-layer bottom plate structure, reserving a post-pouring belt 14 at the position of 1/3 of the span center of the left and right adjacent spans of the hole area 9 for applying prestress, and erecting a temporary transverse support 15 at the center of the hole area 9;
it should be noted that, as shown in the negative one-layer floor plan after continuous hole forming in fig. 3, the bending line part in the figure shows hole forming areas 9, each hole forming area 9 covers three spans, the left side and the right side of the hole forming area 9 are adjacent spans, the length of one span Liang Jingkua is divided into three equal parts, the middle section is a midspan, 1/3 of the midspan refers to two end points of the middle section, and the post-cast strip 14 can be arranged at any one of the two end points, namely, the adjacent span midspan 1/3 of the hole forming area 9.
Step 300, pouring a negative layer of steel concrete column 3 after the negative layer of bottom plate structure reaches the design strength, continuing to excavate to the design elevation of the station structure bottom plate 8, and constructing the structure bottom plate 8 and the bottom beam 7;
step 400, after the structural bottom plate reaches the design strength, pouring a negative two-layer type steel concrete column to resist the horizontal water and soil pressure, and pouring a post-pouring belt after applying prestress to a reserved post-pouring belt position dividing region;
and 500, after the post-cast strip 14 reaches the design strength, removing the temporary transverse support 15 and delivering the temporary transverse support to use.
Specifically, in step 100, constructing a roof of a subway station specifically includes: the building envelope 16, the column piles and the uplift piles are constructed, and the cover plate 1 and the top beam 2 are applied.
The upright post pile is a part of the steel reinforced concrete column 3, is applied before excavation of a foundation pit, and is reserved with connection nodes at the positions of the negative first-layer bottom plate 4 and the negative two-layer structure bottom plate 8, and then all the layer plate beams are poured together.
In step 200, as an embodiment of the present invention, the negative one-layer backplane structure specifically includes: the negative first-layer bottom plate 4, the cross beam 6 and the longitudinal beam 5 are applied, a middle reinforced concrete slab band 11 is applied between two adjacent holes, the middle reinforced concrete slab band 11 and the temporary transverse support 15 jointly ensure the transmission of lateral water and soil pressure, the reinforced concrete members at the edges of the holes are prevented from being pulled to be damaged when no prestress is applied, and the prestress screwed pipes are pre-buried in the negative first-layer bottom plate 4.
In step 400, the zoned prestressing specifically includes:
step 401, dividing the position of the post-cast strip 14 into a first pre-stress loading area and a second pre-stress loading area 13;
step 402, stretching the prestressed reinforcement with a first preset stress value in the first prestressed loading area 12, and stretching the prestressed reinforcement with a second preset stress value in the second prestressed loading area 13;
wherein the distance from the first pre-stressing region 12 to the hole region 9 is smaller than the distance from the second pre-stressing region 13 to the hole region 9;
the first predetermined stress value is greater than the second predetermined stress value.
The hierarchical prestressing force is needed to be applied according to calculation, the middle plate prestressing steel bar is tensioned in a divided area, and the prestressing force applied to the adjacent hole area is larger than the prestressing force applied to the position far away from the hole area.
In the actual construction process of the subway station, the underground structure of the subway station is not limited to two layers, specifically, a section steel concrete beam can be adopted for the transverse longitudinal beam of the hole-opened layer to improve the strength, and a conventional reinforced concrete beam can be adopted for the non-hole-opened layer.
In a specific embodiment, as shown in fig. 2 to 3, a composite structure of a section steel beam and a section steel column is used as a main body of a stress system, and the problem of tensile failure of concrete at the edge of a hole is solved by assisting with prestress, and the steps are as follows:
constructing an enclosure structure 16, upright piles and anti-pulling piles 10 after traffic dispersion and field leveling are completed by adopting a cover excavation reverse construction method, then constructing a cover plate 1 and a top beam 2, and recovering road traffic after the structure reaches the design strength;
digging a foundation pit to a designed elevation below the negative first-layer bottom plate 4, applying the negative first-layer bottom plate 4, pre-burying a pre-stressing threaded pipe and reserving a post-pouring belt 14 for applying pre-stressing, and erecting a temporary transverse support 15 in the center of the hole area 9 to jointly ensure the transmission of water and soil pressure with the inter-hole reinforced concrete plate 11;
pouring a layer of negative steel concrete column 3 after the negative layer plate reaches the design strength, continuing to excavate to the station structure bottom plate 8, and constructing the structure bottom plate 8;
and fourthly, after the structural bottom plate 8 reaches the design strength, pouring the negative two-layer type steel concrete column 3 to resist the horizontal water and soil pressure, applying graded prestress according to calculation, stretching the middle plate prestress steel bars in different areas, pouring the post-pouring belt 14, and removing the temporary transverse support 15 after the structural bottom plate reaches the design strength, and delivering for use.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.
Claims (8)
1. The construction method of the continuous ultra-wide side-leaning hole structure of the subway station board is characterized by comprising the following steps:
step 100, after traffic dispersion and site leveling are completed, constructing a top plate of the subway station by adopting a cover-excavation reverse method, and recovering road traffic after the top plate of the subway station reaches the design strength;
step 200, excavating a foundation pit to a designed elevation below a negative first-layer bottom plate (4), applying a negative first-layer bottom plate structure, reserving a post-pouring belt (14) at a position of 1/3 of the span adjacent to the hole area (9) for applying prestress, and erecting a temporary transverse support (15) at the center of the hole area (9);
step 300, pouring a negative layer of reinforced concrete column (3) after the negative layer of bottom plate structure reaches the design strength, continuing to excavate to the design elevation of the station structure bottom plate (8), and constructing the structure bottom plate (8) and the bottom beam (7);
step 400, after the structural bottom plate (8) reaches the design strength, pouring a negative two-layer type steel concrete column (3) to resist the horizontal water and soil pressure, and pouring a post-cast strip (14) after applying prestress to a reserved post-cast strip (14) position division area;
step 500, after the post-cast strip (14) reaches the design strength, removing the temporary transverse support (15) and delivering the temporary transverse support for use;
in step 400, the zoned prestressing specifically includes:
step 401, dividing the position of the post-cast strip (14) into a first pre-stress loading area (12) and a second pre-stress loading area (13);
step 402, stretching the prestressed reinforcement with a first preset stress value in a first prestressed loading area (12), and stretching the prestressed reinforcement with a second preset stress value in a second prestressed loading area (13);
wherein the distance of the first pre-stressing region (12) from the hole region (9) is smaller than the distance of the second pre-stressing region (13) from the hole region (9);
the first predetermined stress value is greater than the second predetermined stress value.
2. The method for constructing a continuous ultra-wide side hole structure of a subway station slab according to claim 1, wherein in step 100, the construction of the subway station slab specifically comprises: the building is applied as an enclosure structure (16), upright posts and anti-pulling piles (10), and is applied as a cover plate (1) and a top beam (2).
3. The construction method of the continuous ultra-wide side hole structure of the subway station board according to claim 2, wherein the top beam (2) is a reinforced concrete beam.
4. The construction method of the continuous ultra-wide side hole structure of the subway station board according to claim 2, further comprising reserving connection nodes at positions corresponding to the negative first-layer bottom board (4) and the negative second-layer bottom board (8) on the upright posts.
5. The method for constructing a continuous ultra-wide side hole structure of a subway station slab according to claim 1, wherein in step 200, the construction of the negative one-layer bottom plate structure specifically comprises: and a negative first-layer bottom plate (4), a cross beam (6) and longitudinal beams (5) are applied, a middle reinforced concrete slab band (11) is applied between two adjacent holes, and a pre-stressing threaded pipe is pre-buried in the negative first-layer bottom plate (4).
6. The construction method of the continuous ultra-wide side hole structure of the subway station board according to claim 5, wherein the cross beam (6) and the longitudinal beam (5) in the negative one-layer bottom plate structure are steel reinforced concrete beams.
7. The construction method of the continuous ultra-wide side hole-forming structure of the subway station slab according to claim 1, wherein in step 200, the post-cast strip (14) is arranged at the 1/3 position of the adjacent span center around the hole-forming area (9), and the prestressed reinforcement is tensioned while the stress of the adjacent span structure is ensured to meet the requirement.
8. The method for constructing a continuous ultra-wide side hole structure of a subway station slab according to claim 1, wherein in step 300, the bottom beam (7) is a reinforced concrete beam.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310730877.5A CN116464098B (en) | 2023-06-20 | 2023-06-20 | Construction method of continuous ultra-wide side-leaning hole-opening structure of subway station board |
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| CN202310730877.5A CN116464098B (en) | 2023-06-20 | 2023-06-20 | Construction method of continuous ultra-wide side-leaning hole-opening structure of subway station board |
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| CN116464098B true CN116464098B (en) | 2023-09-05 |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200308716Y1 (en) * | 2002-10-14 | 2003-03-28 | 한만엽 | Prestressed scaffolding method |
| CN102505706A (en) * | 2011-09-30 | 2012-06-20 | 北京市政建设集团有限责任公司 | Method for building subway station |
| CN104674846A (en) * | 2015-02-16 | 2015-06-03 | 济南轨道交通集团有限公司 | Construction method for evacuating subway station by prefabricated structure cover |
| CN106522272A (en) * | 2016-07-28 | 2017-03-22 | 江苏开来预应力工程有限公司 | Design and construction method of underground pipe rack based on plate with adhesive prestress on cross section |
| CN106869170A (en) * | 2017-03-31 | 2017-06-20 | 建研地基基础工程有限责任公司 | Open cut type is without big across the arch Metro Station Structure of post and design and construction method |
| CN107119711A (en) * | 2017-07-06 | 2017-09-01 | 中国铁路设计集团有限公司 | A kind of connected structure and construction method for abutting existing transfer station on a large scale |
| CN115821985A (en) * | 2022-12-26 | 2023-03-21 | 北京住总集团有限责任公司 | Integrated construction method for auxiliary structure of subway open cut station |
-
2023
- 2023-06-20 CN CN202310730877.5A patent/CN116464098B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200308716Y1 (en) * | 2002-10-14 | 2003-03-28 | 한만엽 | Prestressed scaffolding method |
| CN102505706A (en) * | 2011-09-30 | 2012-06-20 | 北京市政建设集团有限责任公司 | Method for building subway station |
| CN104674846A (en) * | 2015-02-16 | 2015-06-03 | 济南轨道交通集团有限公司 | Construction method for evacuating subway station by prefabricated structure cover |
| CN106522272A (en) * | 2016-07-28 | 2017-03-22 | 江苏开来预应力工程有限公司 | Design and construction method of underground pipe rack based on plate with adhesive prestress on cross section |
| CN106869170A (en) * | 2017-03-31 | 2017-06-20 | 建研地基基础工程有限责任公司 | Open cut type is without big across the arch Metro Station Structure of post and design and construction method |
| CN107119711A (en) * | 2017-07-06 | 2017-09-01 | 中国铁路设计集团有限公司 | A kind of connected structure and construction method for abutting existing transfer station on a large scale |
| CN115821985A (en) * | 2022-12-26 | 2023-03-21 | 北京住总集团有限责任公司 | Integrated construction method for auxiliary structure of subway open cut station |
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| CN116464098A (en) | 2023-07-21 |
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