CN113738414A - Underground excavation subway station steel pipe column reinforcing method for reducing shield tunneling disturbance - Google Patents
Underground excavation subway station steel pipe column reinforcing method for reducing shield tunneling disturbance Download PDFInfo
- Publication number
- CN113738414A CN113738414A CN202111116924.4A CN202111116924A CN113738414A CN 113738414 A CN113738414 A CN 113738414A CN 202111116924 A CN202111116924 A CN 202111116924A CN 113738414 A CN113738414 A CN 113738414A
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- China
- Prior art keywords
- steel pipe
- pipe column
- subway station
- shield tunneling
- disturbance
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 59
- 239000010959 steel Substances 0.000 title claims abstract description 59
- 230000005641 tunneling Effects 0.000 title claims abstract description 21
- 238000000034 method Methods 0.000 title claims abstract description 14
- 230000003014 reinforcing effect Effects 0.000 title claims abstract description 14
- 238000009412 basement excavation Methods 0.000 title claims abstract description 7
- 238000005266 casting Methods 0.000 claims abstract description 4
- 238000010276 construction Methods 0.000 abstract description 5
- 230000002787 reinforcement Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
- E21D15/50—Component parts or details of props
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
The invention relates to a method for reinforcing a steel pipe column of an underground excavation subway station, which reduces shield tunneling disturbance, belongs to the technical field of subway station construction, and comprises the following steps: s1, sleeving a lantern ring outside the steel pipe column; and S2, casting a fixing ring outside the lantern ring to connect the fixing ring with the guide hole. In the shield station-crossing stage, the bottom end of the steel pipe column is inserted into the pile foundation, and the top end of the steel pipe column is connected with the fixing ring structure of the pilot tunnel bottom plate, so that the two ends of the steel pipe column are in a fixed connection state, the disturbance of shield tunneling on the steel pipe column can be effectively resisted, and the stress state of the steel pipe column is ensured to be consistent with the designed stress state.
Description
Technical Field
The invention relates to the technical field of subway station construction, in particular to a method for reinforcing a steel pipe column of an underground excavated subway station, which can reduce shield tunneling disturbance.
Background
The conventional method for shield station-crossing is as follows: before the shield constructs the machine through secretly digging subway station, the bottom plate and the center pillar (steel-pipe column) of station structure all have been under construction and have been accomplished, and the shield constructs the machine empty and pushes through the station, does not have any disturbance to the station center pillar.
In order to ensure that the shield tunnel is communicated according to time, after the construction of a pilot tunnel, a side pile and a steel pipe column of a subway station is finished, the shield firstly tunnels to pass through the station, so that although the tunneling efficiency of the shield can be fully exerted, because the top longitudinal beam at the upper part of the steel pipe column is not poured and is not fixed at the upper part, the upper part of the steel pipe column is in a cantilever state, and when the shield machine tunnels to an area near the steel pipe column, because the cutter head of the shield machine is very close to the steel pipe column, the stratum around the cutter head is disturbed under the action of the shield tunneling thrusting force and the torque. The steel pipe column is easy to be eccentric under the action of lateral thrust. And the eccentricity of the steel pipe column can not be repaired basically, which causes serious construction quality accidents.
In order to reduce the influence of shield tunneling on the steel pipe column, the invention provides a subway station steel pipe column reinforcing method and structure for reducing shield tunneling disturbance, so as to overcome the defects under the working condition that the shield passes through the station in advance.
Disclosure of Invention
The invention aims to provide a method for reinforcing a steel pipe column of an underground excavated subway station, which can reduce shield tunneling disturbance and solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a method for reinforcing a steel pipe column of an underground excavation subway station for reducing shield tunneling disturbance comprises the following steps:
s1, sleeving a lantern ring outside the steel pipe column;
and S2, casting a fixing ring outside the lantern ring to connect the fixing ring with the guide hole.
As a further technical scheme of the invention, the collar in the S1 comprises a first steel ring and a second steel ring matched with the first steel ring.
As a further technical scheme of the invention, the thickness of the lantern ring is 30 mm.
As a further technical scheme of the invention, the fixing ring in the S2 is C35 plain concrete.
As a further technical scheme of the invention, the thickness of the fixing ring is 500 mm.
Compared with the prior art, the invention has the beneficial effects that: in the shield station-crossing stage, the bottom end of the steel pipe column is inserted into the pile foundation, and the top end of the steel pipe column is structurally connected with the fixing ring of the pilot tunnel bottom plate, so that the two ends of the steel pipe column are in a fixed connection state, the disturbance of shield tunneling on the steel pipe column can be effectively resisted, and the stress state of the steel pipe column is ensured to be consistent with the designed stress state.
Drawings
FIG. 1 is a main view section after reinforcement of a steel pipe column of an underground excavated subway station for reducing shield tunneling disturbance;
fig. 2 is a top view section of the reinforced underground excavated subway station steel pipe column reinforcing method for reducing shield tunneling disturbance.
In the figure: 1-steel pipe column, 2-lantern ring, 21-first steel ring, 22-second steel ring, 3-fixed ring, 4-pilot hole, and 5-middle plate.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
The embodiment of the invention is realized in such a way that the method for reinforcing the steel pipe column of the underground excavation subway station for reducing the shield tunneling disturbance, which is shown in figures 1 and 2, comprises the following steps:
s1, sleeving a lantern ring 2 outside the steel pipe column 1;
and S2, casting the fixing ring 3 outside the lantern ring 2 to be connected with the guide hole 4.
In practical application, a first steel ring 21 and a second steel ring 22 with the thickness of 30mm are sleeved on the outer side of the steel pipe column 1, the two half rings are bolted to form a lantern ring, the preferable materials of the first steel ring 21 and the second steel ring 22 are both Q355, then C35 plain concrete fixing rings 3 with the thickness of 500mm are poured to connect and fix the steel pipe column 1, the lantern ring 2, the fixing rings 3 and the pilot tunnel 4, because the bottom end of the steel pipe column 1 is inserted into the pile foundation in the shield station-passing stage, the top end of the steel pipe column 1 is structurally connected with the fixed ring 3 at the bottom of the pilot tunnel 4, therefore, the two ends of the steel pipe column 1 are in a fixed connection state, disturbance of shield tunneling to the steel pipe column 1 can be effectively resisted, the stress state of the steel pipe column 1 is ensured to be consistent with the designed stress state, in addition, the middle plate 5 can be sleeved on the outer side of the middle part of the steel pipe column, the middle plate 5 is connected and fixed with the hole wall, and the reinforcement performance of the steel pipe column 1 is further improved.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (5)
1. A method for reinforcing a steel pipe column of an underground excavation subway station for reducing shield tunneling disturbance is characterized by comprising the following steps:
s1, sleeving a lantern ring outside the steel pipe column;
and S2, casting a fixing ring outside the lantern ring to connect the fixing ring with the guide hole.
2. The method for reinforcing the steel pipe column of the underground excavation subway station with the shield tunneling disturbance reduced according to claim 1, wherein the collar in the S1 comprises a first steel ring and a second steel ring matched with the first steel ring.
3. The method for reinforcing the steel pipe column of the underground excavated subway station with the reduced disturbance of shield tunneling according to claim 2, wherein the thickness of the collar is 30 mm.
4. The method for reinforcing the steel pipe column of the underground excavated subway station with the shield tunneling disturbance reduced according to claim 1, wherein the fixing ring in the S2 is C35 plain concrete.
5. The method for reinforcing the steel pipe column of the underground excavated subway station with the shield tunneling disturbance reduced according to claim 4, wherein the thickness of the fixing ring is 500 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111116924.4A CN113738414A (en) | 2021-09-23 | 2021-09-23 | Underground excavation subway station steel pipe column reinforcing method for reducing shield tunneling disturbance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111116924.4A CN113738414A (en) | 2021-09-23 | 2021-09-23 | Underground excavation subway station steel pipe column reinforcing method for reducing shield tunneling disturbance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113738414A true CN113738414A (en) | 2021-12-03 |
Family
ID=78740520
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111116924.4A Pending CN113738414A (en) | 2021-09-23 | 2021-09-23 | Underground excavation subway station steel pipe column reinforcing method for reducing shield tunneling disturbance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113738414A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002356863A (en) * | 2001-06-01 | 2002-12-13 | Toda Constr Co Ltd | First floor preconstruction method in reverse construction method |
| CN104088665A (en) * | 2013-12-03 | 2014-10-08 | 中铁十三局集团有限公司 | Steel pipe column construction process for underground excavated station |
| CN106337686A (en) * | 2015-07-13 | 2017-01-18 | 中铁第六勘察设计院集团有限公司 | Rock stratum underground excavation three-story subway station umbrella cover structure and construction method thereof |
| CN109853573A (en) * | 2018-12-14 | 2019-06-07 | 中国电建集团铁路建设有限公司 | Concreting method and its steel pipe column under the steel pipe column tension steel plate of subway station |
| CN110486034A (en) * | 2019-09-19 | 2019-11-22 | 北京市政建设集团有限责任公司 | Subway station and construction method based on pile foundation in four pilot tunnel of single layer and middle drift |
| CN110629744A (en) * | 2019-09-16 | 2019-12-31 | 中铁广州工程局集团深圳工程有限公司 | Construction process of steel pipe concrete pile of subway station |
-
2021
- 2021-09-23 CN CN202111116924.4A patent/CN113738414A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002356863A (en) * | 2001-06-01 | 2002-12-13 | Toda Constr Co Ltd | First floor preconstruction method in reverse construction method |
| CN104088665A (en) * | 2013-12-03 | 2014-10-08 | 中铁十三局集团有限公司 | Steel pipe column construction process for underground excavated station |
| CN106337686A (en) * | 2015-07-13 | 2017-01-18 | 中铁第六勘察设计院集团有限公司 | Rock stratum underground excavation three-story subway station umbrella cover structure and construction method thereof |
| CN109853573A (en) * | 2018-12-14 | 2019-06-07 | 中国电建集团铁路建设有限公司 | Concreting method and its steel pipe column under the steel pipe column tension steel plate of subway station |
| CN110629744A (en) * | 2019-09-16 | 2019-12-31 | 中铁广州工程局集团深圳工程有限公司 | Construction process of steel pipe concrete pile of subway station |
| CN110486034A (en) * | 2019-09-19 | 2019-11-22 | 北京市政建设集团有限责任公司 | Subway station and construction method based on pile foundation in four pilot tunnel of single layer and middle drift |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20211203 |