CN116657519A - New and old combination in-situ reconstruction method for rain box culvert crossing subway station - Google Patents
New and old combination in-situ reconstruction method for rain box culvert crossing subway station Download PDFInfo
- Publication number
- CN116657519A CN116657519A CN202310952131.9A CN202310952131A CN116657519A CN 116657519 A CN116657519 A CN 116657519A CN 202310952131 A CN202310952131 A CN 202310952131A CN 116657519 A CN116657519 A CN 116657519A
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- Prior art keywords
- box culvert
- rainwater
- station
- pit
- culvert
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000011065 in-situ storage Methods 0.000 title claims abstract description 20
- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000010276 construction Methods 0.000 claims abstract description 25
- 238000009412 basement excavation Methods 0.000 claims abstract description 13
- 239000002689 soil Substances 0.000 claims abstract description 8
- 208000014617 hemorrhoid Diseases 0.000 claims description 12
- 230000000903 blocking effect Effects 0.000 claims description 6
- 238000005553 drilling Methods 0.000 claims description 4
- 239000004927 clay Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 4
- 230000002265 prevention Effects 0.000 abstract description 3
- 238000004891 communication Methods 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F5/00—Draining the sub-base, i.e. subgrade or ground-work, e.g. embankment of roads or of the ballastway of railways or draining-off road surface or ballastway drainage by trenches, culverts, or conduits or other specially adapted means
- E01F5/005—Culverts ; Head-structures for culverts, or for drainage-conduit outlets in slopes
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Architecture (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- General Engineering & Computer Science (AREA)
- Lining And Supports For Tunnels (AREA)
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
A new and old combination in-situ reconstruction method for a rainwater box culvert crossing a subway station comprises the following steps: s1, respectively arranging a top pit and a receiving pit of a top pipe at positions, close to an original rainwater box culvert, of two side edges of a municipal road, constructing a top pit cover plate, and then covering soil for backfilling to a designed elevation; s2, traffic guiding is carried out, and a traffic lane is guided to the position above the roof pit; s3, sequentially constructing a support pile, a station upright post pile foundation and an upright post below the original rainwater box culvert, removing the rest original rainwater box culvert in the station range, and constructing a part of station roof structure below the box culvert; s4, removing temporary rainwater pipe culverts and closing the supporting structure system; s5, after the station and tunnel structure construction is completed, traffic guiding is carried out; s6, removing the roof pit and the receiving pit. The invention ensures that rainwater has a smooth passage in the process of constructing a new box culvert through the temporary rainwater pipe culvert, ensures the safety of urban flood prevention, and only needs to conduct traffic guidance for 1 time by adopting a mode of partial cover excavation reverse construction and large-area open excavation forward construction.
Description
Technical Field
The invention relates to the field of building subway stations at the positions of existing rainwater box culverts, in particular to a new and old combination in-situ reconstruction method for the rainwater box culverts crossing the subway stations.
Background
Along with the continuous expansion of subway construction scale, various municipal pipelines and underground barriers can be encountered at the subway station, and pipelines and box culverts which affect station construction can be changed under normal conditions, but reasonable routing conditions are not provided in some cases, and the subway station needs to be kept in situ. In the subway station construction process, the pipelines and the box culverts cannot be interrupted, particularly, some rainwater box culverts related to flood prevention and drainage cannot be interrupted, so that the safety of urban flood season is ensured.
Disclosure of Invention
The invention provides a new and old combination in-situ reconstruction method for a rainwater box culvert crossing a subway station, which aims to solve the problems, and the in-situ recovery of the rainwater box culvert is quickly realized by connecting a new rainwater box culvert above a new subway with an original box culvert of a reserved part.
The invention adopts the technical scheme that:
a new and old combination in-situ reconstruction method for a rainwater box culvert crossing a subway station comprises the following steps:
s1, respectively arranging a top pit and a receiving pit of a top pipe at the positions, close to original rainwater box culverts, of two side edges of a municipal road, constructing a new temporary rainwater box culvert by the top pipe, penetrating the municipal road downwards according to the principle of uniform cross section, replacing the existing rectangular box culvert, guiding rainwater, and covering soil after constructing a top pit cover plate to backfill to a designed elevation;
s2, traffic guiding is carried out, a traffic lane is guided to the position above the roof pit, and normal traffic outside the construction enclosure range of the station is ensured;
s3, sequentially constructing a support pile, a station upright post pile foundation and an upright post below an original rainwater box culvert, removing the rest original rainwater box culvert in a station range, constructing a part of station top plate structure below the box culvert, and then recovering the box culvert structure from bottom to top in situ;
s4, guiding rainwater into the newly built rainwater box culvert and the original rainwater box culvert with a reserved part, removing the temporary rainwater box culvert, constructing support piles below the temporary pipe culvert and support piles of foundation pits of other stations at other common positions in sequence, closing a support structure system, starting normal foundation pit support and earthwork excavation, and carrying out open excavation on the rest positions except for the partial cover excavation reverse operation below the rainwater box culvert;
s5, after the construction of the station and the tunnel structure is completed, traffic guiding is carried out, and the station is restored to pass above the roof structure of the station;
s6, removing the top pit and the receiving pit, and recovering the field to the original state.
In the step S1, the temporary rainwater pipe culverts are constructed by adopting a pipe jacking method, normal traffic of the municipal roads on the upper parts is not affected, and the diameters and the number of the temporary rainwater pipe culverts are determined according to the principle of equal area replacement.
After the pipe jacking construction in the step S1 is finished, rainwater in the original rainwater box culvert is guided into the temporary rainwater box culvert and flows into the opposite box culvert, and then the top pit is covered with the cover plate.
And step S3, when the support piles, the station upright pile foundation foundations and the upright columns below the original rainwater box culverts are constructed, the construction is carried out after the partial obstacle clearance of the full sleeve rotary drilling machine, then the soil body within the influence range of the existing box culverts is excavated, and the original rainwater box culvert structure is broken.
And when the supporting piles, the internal piles and the internal structural columns below the original rainwater box culvert are constructed in the step S3, the barrier-removing drilling machine can be adopted to penetrate through the top plate and the bottom plate of the existing box culvert structure for construction, and after the structural strength of the top plate of the station at the bottom of the box culvert meets the design requirement, a new rainwater box culvert structure in the top range of the station is constructed on the top plate.
The new and old rainwater box culverts are reliably connected, the internal blocking wall of the built box culverts is broken, and the pipe inside blocking is carried out at the top pit end part of the pipe culvert, so that rainwater is drained to the original position and passes through the municipal road.
Backfilling residual pipe culverts from the inside, plugging, removing the top pit and the receiving pit, backfilling with clay to be compact, wherein the compactness meets the requirement of municipal roads.
The invention has the beneficial effects that: according to the invention, in the process of constructing a new box culvert, the smooth passage of rainwater is ensured through the temporary rainwater pipe culvert, the safety of urban flood prevention is ensured, the foundation pit construction efficiency is greatly improved through the modes of partial cover excavation reverse construction and large surface open excavation forward construction, the traffic guiding is only needed for 1 time, and only the rainwater box culvert structure at the upper part of the station is needed to be built again, so that the materials are saved, the construction period is shortened, and the cost is reduced.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is an enlarged partial schematic view at a in fig. 1.
Wherein: 1-a station main body structure; 2-station construction enclosure; 3-the rest part of original rainwater box culvert; 4, reserving part of original rainwater box culvert; 5-pit ejection; 6-a receiving pit; 7-temporary rainwater culverts; 8-supporting piles of the foundation pit of the station at the general position; 9-supporting piles below the original rainwater box culvert; 10-supporting piles below the temporary pipe culvert; 11-part of a station roof structure below the box culvert; 12-plugging the wall.
Detailed Description
A new and old combination in-situ reconstruction method for a rainwater box culvert crossing a subway station comprises the following steps:
s1, respectively arranging a top pit 5 and a receiving pit 6 of a top pipe at the positions, close to original rainwater box culverts, of two side edges of a municipal road, determining reasonable supporting forms according to actual geological conditions and soil layer parameters, guaranteeing stability of the top pit 5 and the receiving pit 6, determining the number and the diameter of the top pipes and the plane dimensions of the top pit 5 and the receiving pit 6 according to a constant-section principle, constructing new temporary rainwater box culverts 7 under the top pipe to penetrate the municipal road after the conditions are met, replacing the existing rectangular box culverts, guiding rainwater, covering soil after constructing a top pit cover plate, backfilling to a design elevation, and enabling the temporary rainwater box culverts 7 to be only used as temporary rainwater passages and be abandoned in the later period;
s2, a sealing wall 12 is built in the original rainwater box culvert, which is close to the joint part of the new rainwater box culvert and the old rainwater box culvert, after rainwater is guided to the temporary rainwater box culvert 7, a cover plate is covered on the top pit 5, traffic guiding is carried out after the upper traffic passing requirement is met, a traffic lane is guided to the upper part of the top pit 5, then a traffic enclosure is constructed, normal traffic outside the range of the station construction enclosure 2 is ensured, and construction of a station supporting structure and the new rainwater box culvert is prepared;
s3, sequentially constructing a support pile 9, a station upright pile foundation and an upright post below an original rainwater box culvert, removing the rest original rainwater box culvert 3 in a station range, constructing a part of station roof structure 11 below the box culvert, then recovering the box culvert structure from bottom to top in situ, constructing a newly built rainwater box culvert in a surrounding and blocking range, connecting the newly built rainwater box culvert with the original rainwater box culvert 4 of a reserved part, and removing a built blocking wall 12 from the inside to recover an original rainwater circulation path;
s4, guiding rainwater into a newly built rainwater box culvert and a reserved part of an original rainwater box culvert 4, building a blocking wall 12 from the end part of the culvert at the top pit 5 part in the interior, discarding the temporary rainwater pipe culvert 7, constructing a support pile 10 below the temporary pipe culvert and support piles 8 of other general station foundation pits in sequence, closing a support structure system, starting normal foundation pit support and earthwork excavation, and carrying out open excavation on the rest parts except for the partial cover excavation reverse construction below the rainwater box culvert;
s5, after the construction of the station main body structure 1 and the tunnel main body structure is completed, the shield well is blocked, an upper soil layer is backfilled, traffic guiding is carried out, and the upper part of the station roof structure 11 below the box culvert is restored to pass through;
s6, removing the roof pit 5 and the receiving pit 6, backfilling the interior of the pipe culvert at the part outside the station, and backfilling with clay to be compact, wherein the compactness meets the requirement of municipal roads.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
The foregoing describes the embodiments of the present invention in detail, but the description is only a preferred embodiment of the present invention and should not be construed as limiting the scope of the invention. All equivalent changes and modifications within the scope of the present invention are intended to be covered by the present invention.
Claims (7)
1. A new and old combination in-situ reconstruction method for a rainwater box culvert crossing a subway station is characterized by comprising the following steps:
s1, respectively arranging a top pit (5) and a receiving pit (6) of a top pipe at the positions, close to original rainwater box culverts, of two side edges of a municipal road, constructing a new temporary rainwater box culvert (7) by the top pipe to penetrate the municipal road according to the principle of uniform cross section, replacing the existing rectangular box culvert, guiding rainwater, and covering soil after constructing a top pit cover plate to backfill to a designed elevation;
s2, traffic guiding is carried out, a traffic lane is guided to the position above the top pit (5), and normal traffic outside the range of the station construction enclosure (2) is ensured;
s3, sequentially constructing a support pile (9) below an original rainwater box culvert, a station upright post pile foundation and an upright post, removing the rest original rainwater box culvert (3) in the station range, constructing a part of station roof structure (11) below the box culvert, and then recovering the box culvert structure from bottom to top in situ;
s4, guiding rainwater into a newly built rainwater box culvert and an original rainwater box culvert (4) of a reserved part, removing the temporary rainwater box culvert (7), constructing a support pile (10) below the temporary box culvert and a support pile (8) of a station foundation pit at other general positions in sequence, closing a support structure system, starting normal foundation pit support and earth excavation, and carrying out open excavation at other positions except for the partial cover excavation reverse operation below the rainwater box culvert;
s5, after the construction of the station main body structure (1) and the tunnel main body structure is completed, traffic guiding is changed, and the traffic is restored to pass above the station roof structure (11);
s6, removing the top pit (5) and the receiving pit (6), and recovering the field to the original state.
2. The method for reconstructing new and old combination in-situ of the rainwater box culvert crossing the subway station according to claim 1, wherein the temporary rainwater pipe culvert (7) in the step S1 is constructed by adopting a pipe jacking method, normal passing of the municipal road on the upper part is not affected, and the diameter and the number of the temporary rainwater pipe culvert (7) are determined according to the principle of equal area replacement.
3. The method for reconstructing new and old combinations of the rain water box culverts crossing the subway station in situ according to claim 2, wherein after the pipe jacking construction is finished in the step S1, the rain water of the original rain water box culverts is guided into the temporary rain water box culverts (7) and flows into the opposite box culverts, and then the top pit (5) is covered with a cover plate.
4. The method for reconstructing new and old combination in situ of the rain box culvert crossing the subway station according to claim 1 is characterized in that in the step S3, when the support piles (9) below the original rain box culvert, the pile foundation base of the station upright post and the upright post are constructed, the construction is carried out after the partial obstacle removal by adopting a full sleeve rotary drilling machine, then soil bodies in the influence range of the existing box culvert are excavated, and the structure of the rest original rain box culvert (3) in the station range is broken.
5. The method for reconstructing new and old combination in situ of the rain box culvert crossing the subway station according to claim 4, wherein in the step S3, when the supporting piles (9) and the internal piles and the internal structural columns below the original rain box culvert are constructed, the barrier-removing drilling machine can be adopted to penetrate the top plate and the bottom plate of the existing box culvert structure for construction, and after the strength of the top plate structure (11) of the station at the bottom of the box culvert meets the design requirement, the new rain box culvert structure in the top range of the station is constructed on the top plate.
6. The method for reconstructing new and old combination in situ of the rainwater box culvert crossing the subway station according to claim 5, wherein the new and old rainwater box culverts are reliably connected, the built box culvert inner blocking wall (12) after the new and old rainwater box culverts are broken is blocked in a pipe at the end part of a pipe culvert top pit (5), and rainwater is drained to the in situ through municipal roads.
7. The method for reconstructing new and old combination in situ of the rainwater box culvert crossing the subway station according to claim 6, wherein the residual pipe culvert is backfilled from the inside, the top pit (5) and the receiving pit (6) are removed, and the clay is backfilled and compacted, and the compactness meets the requirement of municipal roads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310952131.9A CN116657519A (en) | 2023-08-01 | 2023-08-01 | New and old combination in-situ reconstruction method for rain box culvert crossing subway station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310952131.9A CN116657519A (en) | 2023-08-01 | 2023-08-01 | New and old combination in-situ reconstruction method for rain box culvert crossing subway station |
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| Publication Number | Publication Date |
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| CN116657519A true CN116657519A (en) | 2023-08-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310952131.9A Pending CN116657519A (en) | 2023-08-01 | 2023-08-01 | New and old combination in-situ reconstruction method for rain box culvert crossing subway station |
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| CN (1) | CN116657519A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117307816A (en) * | 2023-11-28 | 2023-12-29 | 中国建筑第六工程局有限公司 | Construction method for long-distance side-penetrating old drainage concrete pipeline of jacking pipe |
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| CN107059878A (en) * | 2017-03-24 | 2017-08-18 | 广州地铁设计研究院有限公司 | A kind of construction method for being applied to river course across Metro station excavation |
| CN111305141A (en) * | 2019-11-29 | 2020-06-19 | 中国一冶集团有限公司 | Drainage method for underground comprehensive pipe gallery in dry season canal penetrating |
| CN113202173A (en) * | 2021-04-09 | 2021-08-03 | 中铁六局集团太原铁路建设有限公司 | Construction method for temporarily replacing cross-foundation-pit concrete pipe with steel pipe in deep foundation pit construction |
| WO2021196450A1 (en) * | 2020-03-31 | 2021-10-07 | 江苏东合南岩土科技股份有限公司 | Construction method for underground prestressed supporting structure |
| CN114657949A (en) * | 2022-03-31 | 2022-06-24 | 广州市恒盛建设工程有限公司 | Construction method for diversion of flood discharge channel |
| CN114737603A (en) * | 2022-03-24 | 2022-07-12 | 中铁一局集团(广州)建设工程有限公司 | Covering and excavating top-down construction method for covering existing pipeline |
| CN115450221A (en) * | 2022-10-19 | 2022-12-09 | 中铁十五局集团城市轨道交通工程有限公司 | Construction method for subway crossing river channel |
-
2023
- 2023-08-01 CN CN202310952131.9A patent/CN116657519A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN107059878A (en) * | 2017-03-24 | 2017-08-18 | 广州地铁设计研究院有限公司 | A kind of construction method for being applied to river course across Metro station excavation |
| CN111305141A (en) * | 2019-11-29 | 2020-06-19 | 中国一冶集团有限公司 | Drainage method for underground comprehensive pipe gallery in dry season canal penetrating |
| WO2021196450A1 (en) * | 2020-03-31 | 2021-10-07 | 江苏东合南岩土科技股份有限公司 | Construction method for underground prestressed supporting structure |
| CN113202173A (en) * | 2021-04-09 | 2021-08-03 | 中铁六局集团太原铁路建设有限公司 | Construction method for temporarily replacing cross-foundation-pit concrete pipe with steel pipe in deep foundation pit construction |
| CN114737603A (en) * | 2022-03-24 | 2022-07-12 | 中铁一局集团(广州)建设工程有限公司 | Covering and excavating top-down construction method for covering existing pipeline |
| CN114657949A (en) * | 2022-03-31 | 2022-06-24 | 广州市恒盛建设工程有限公司 | Construction method for diversion of flood discharge channel |
| CN115450221A (en) * | 2022-10-19 | 2022-12-09 | 中铁十五局集团城市轨道交通工程有限公司 | Construction method for subway crossing river channel |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117307816A (en) * | 2023-11-28 | 2023-12-29 | 中国建筑第六工程局有限公司 | Construction method for long-distance side-penetrating old drainage concrete pipeline of jacking pipe |
| CN117307816B (en) * | 2023-11-28 | 2024-04-09 | 中国建筑第六工程局有限公司 | Construction method for long-distance side-penetrating old drainage concrete pipeline of jacking pipe |
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Application publication date: 20230829 |