CN113738380A - Method for parallel construction of shield tunnel and underground excavated subway station - Google Patents
Method for parallel construction of shield tunnel and underground excavated subway station Download PDFInfo
- Publication number
- CN113738380A CN113738380A CN202111116966.8A CN202111116966A CN113738380A CN 113738380 A CN113738380 A CN 113738380A CN 202111116966 A CN202111116966 A CN 202111116966A CN 113738380 A CN113738380 A CN 113738380A
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- station
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- 238000010276 construction Methods 0.000 title claims abstract description 32
- 238000000034 method Methods 0.000 title claims abstract description 23
- 238000012423 maintenance Methods 0.000 claims abstract description 24
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 18
- 239000010959 steel Substances 0.000 claims abstract description 18
- 239000002689 soil Substances 0.000 claims abstract description 10
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims 1
- 230000003014 reinforcing effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 11
- 238000009412 basement excavation Methods 0.000 description 4
- 230000005641 tunneling Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000149 penetrating effect Effects 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
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The invention relates to a method for parallel construction of a shield tunnel and an underground excavated subway station, which belongs to the technical field of subway station construction and comprises the following steps: constructing an upper layer pilot tunnel of the station; constructing a left side pile, a left middle pile and a left steel pipe column; constructing a right side pile, a right side center pillar and a right side steel pipe column; constructing a top longitudinal beam, a crown beam and a side pilot tunnel primary support false arch; excavating a primary support arch pilot tunnel; constructing a main body middle plate of the station; constructing a maintenance layer for a side wall of the main body of the station; excavating a negative second-layer soil body, and dismantling an upper segment; removing the lower duct piece and pouring a cushion layer; constructing a second maintenance layer of the station bottom plate; and constructing a third maintenance layer for the negative two-layer side wall of the main body of the station. The invention can better solve the mutual conflict between the construction planning of the subway shield interval tunnel and the station, the construction planning and the construction period arrangement of the shield tunnel and the underground excavated station are completely independent and are not restricted, and the goal of 'tunnel through' is realized as early as possible.
Description
Technical Field
The invention relates to the technical field of subway station construction, in particular to a method for constructing a shield tunnel and an underground excavated subway station in parallel.
Background
At present, a conventional shield interval tunnel is in a double-hole double-line form, and shield station-passing conditions can be provided after the underground excavation of a station floor structure is completed.
The underground excavation station has a complex structure and a long construction period, shield receiving and starting conditions are difficult to meet before the shield arrives, the shield can only slow down the tunneling speed or wait after arriving at the station, and thus the construction planning of the shield tunnel is bound to the construction progress of the underground excavation subway station inevitably, and the shield construction efficiency and the realization of a 'tunnel through' target are influenced. Therefore, in order to exert the shield tunneling efficiency, a subway station construction method capable of ensuring that the shield tunnel and the underground excavated station are relatively independent in project planning to the maximum extent is required.
Disclosure of Invention
The invention aims to provide a method for constructing a shield tunnel and an underground excavated subway station in parallel, which aims to solve the problems in the background art.
In order to achieve the purpose, the invention provides the following technical scheme:
a method for constructing a shield tunnel and an underground excavated subway station in parallel comprises the following steps:
s1, constructing a pilot tunnel on the upper layer of the station, and constructing maintenance piles at two ends of the station after the pilot tunnel penetrates through the pilot tunnel;
s2, constructing a left side pile, a left middle pile and a left steel pipe column, and constructing a left shield tunnel to pass through a station;
s3, constructing a right side pile, a right side center column and a right side steel pipe column, and constructing a right line shield tunnel to pass through the station;
s4, constructing a top longitudinal beam, a crown beam and a side guide hole primary support false arch;
s5, excavating a primary support buckle arch pilot tunnel, constructing and constructing a primary support buckle arch, paving waterproof, installing reinforcing steel bars and pouring concrete in sequence, and maintaining according to design drawings and specification requirements;
s6, excavating a negative layer of residual soil body, and constructing to form a main middle plate of the station;
s7, constructing a maintenance layer of the side wall of the negative layer of the main body of the station;
s8, excavating a negative second-layer soil body, and dismantling segments of tunnel upper segments inside the station;
s9, removing a duct piece at the lower part of the tunnel in the station, excavating a soil body to a designed elevation of a cushion layer, and pouring the cushion layer;
s10, constructing a second maintenance layer of the station bottom plate;
and S11, constructing a third maintenance layer of the negative two-layer side wall of the main body of the station, and completing construction of the main body structure of the station.
As a further technical scheme of the present invention, four pilot holes are provided in S1, and the four pilot holes are arranged at equal intervals.
As a further technical solution of the present invention, in the step of the station-crossing construction of the left-line shield tunnel in S2, the construction of the left-side pile and the left-side middle pile is suspended, and the construction of the left-side pile, the left-side middle pile and the left-side steel pipe column is continued after the station-crossing of the left-line shield tunnel.
As a further technical scheme of the present invention, in the step S3, in the construction stage of the right shield tunnel passing through the station, the construction of the right side pile and the right middle pile is suspended, and after the right shield tunnel passes through the station, the construction of the right side pile, the right middle pile and the right steel pipe column is continued.
As a still further aspect of the present invention, the first maintenance layer in S7, the second maintenance layer in S10, and the second maintenance layer in S11 are all obtained by laying waterproof, installing steel bars, and pouring concrete.
Compared with the prior art, the invention has the beneficial effects that: the construction planning and construction period arrangement of the shield tunnel and the underground excavation station are completely independent of each other, mutual restriction can be basically achieved, and the goal of 'hole passing' can be achieved as early as possible.
Drawings
FIG. 1 is a process diagram of S1 according to the present invention;
FIG. 2 is a process diagram of S2 according to the present invention;
FIG. 3 is a process diagram of S3 according to the present invention;
FIG. 4 is a process diagram of S4 according to the present invention;
FIG. 5 is a process diagram of S5 according to the present invention;
FIG. 6 is a process diagram of S6 according to the present invention;
FIG. 7 is a process diagram of S7 according to the present invention;
FIG. 8 is a process diagram of S8 according to the present invention;
FIG. 9 is a process diagram of S9 according to the present invention;
FIG. 10 is a process diagram of S10 according to the present invention;
fig. 11 is a process diagram of S11 in the present invention.
In the figure: 1-pilot tunnel, 2-left side pile, 3-left side middle pile, 4-left side steel pipe column, 41-first upper half part, 42-first lower half part, 5-right side pile, 6-right side middle column, 7-right side steel pipe column, 8-top longitudinal beam, 9-crown beam, 10-side pilot tunnel primary support false arch, 11-primary support buckle arch, 12-main body middle plate, 13-first maintenance layer, 14-tunnel upper segment, 15-tunnel lower segment, 16-cushion layer, 17-second maintenance layer and 18-third maintenance layer.
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 constructing the shield tunnel and the underground excavated subway station in parallel as shown in figures 1-11 comprises the following steps:
s1, constructing a pilot tunnel 1 on the upper layer of the station, and constructing maintenance piles at two ends of the station after penetrating four pilot tunnels 1 which are arranged at equal intervals to provide conditions for shield station passing;
s2, constructing a left side pile 2, a left middle pile 3 and a left steel pipe column 4, constructing a left shield tunnel to pass through a station, suspending construction of the left side pile 2 and the left middle pile 3 in the construction stage of the left shield tunnel to pass through the station, and continuing to construct the left side pile 2, the left middle pile 3 and the left steel pipe column 4 after the left shield tunnel passes through the station;
s3, constructing a right side pile 5, a right side center column and a right side steel pipe column 7, wherein a right line shield tunnel is constructed to pass through the station, the construction of the right side pile 5 and the right side center pile 6 is suspended in the right line shield tunnel station-passing construction stage, and the construction of the right side pile 5, the right side center pile 6 and the right side steel pipe column 7 is continued after the right line shield tunnel passes through the station;
s4, constructing a top longitudinal beam 8, a crown beam 9 and a side guide hole primary support false arch 10;
s5, excavating a pilot tunnel 1 of the primary support buckle arch 11, constructing the primary support buckle arch 11, laying waterproof, installing reinforcing steel bars and pouring concrete in sequence, and maintaining according to design drawings and specification requirements;
s6, excavating a negative layer of residual soil, and constructing to form the middle plate 12 of the station main body;
s7, constructing a first maintenance layer 13 of the negative side wall of the main body of the station, specifically laying waterproof, installing reinforcing steel bars and pouring concrete;
s8, excavating a negative second-layer soil body, and dismantling the tunnel upper segment 14 in the station in a subsection and subsection manner;
s9, removing a tunnel lower segment 15 in the station, excavating a soil body to the designed elevation of the cushion layer 14, and pouring the cushion layer 14;
s10, constructing a second maintenance layer 15 of the station bottom plate, specifically laying waterproof, installing reinforcing steel bars and pouring concrete;
and S11, constructing a third maintenance layer 16 of the negative two-layer side wall of the main body of the station, specifically laying waterproof, reinforcing steel bars and pouring concrete, and thus finishing the construction of the main body structure of the station.
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 constructing a shield tunnel and an underground excavated subway station in parallel is characterized by comprising the following steps:
s1, constructing a pilot tunnel on the upper layer of the station, and constructing maintenance piles at two ends of the station after the pilot tunnel penetrates through the pilot tunnel;
s2, constructing a left side pile, a left middle pile and a left steel pipe column, and constructing a left shield tunnel to pass through a station;
s3, constructing a right side pile, a right side center column and a right side steel pipe column, and constructing a right line shield tunnel to pass through the station;
s4, constructing a top longitudinal beam, a crown beam and a side guide hole primary support false arch;
s5, excavating a primary support buckle arch pilot tunnel, constructing and constructing a primary support buckle arch, paving waterproof, installing reinforcing steel bars and pouring concrete in sequence, and maintaining according to design drawings and specification requirements;
s6, excavating a negative layer of residual soil body, and constructing to form a main middle plate of the station;
s7, constructing a first maintenance layer of the negative side wall of the main body of the station;
s8, excavating a negative second-layer soil body, and dismantling segments of tunnel upper segments inside the station;
s9, removing a duct piece at the lower part of the tunnel in the station, excavating a soil body to a designed elevation of a cushion layer, and pouring the cushion layer;
s10, constructing a second maintenance layer of the station bottom plate;
and S11, constructing a third maintenance layer of the negative two-layer side wall of the main body of the station, and completing construction of the main body structure of the station.
2. The method of constructing a shield tunnel in parallel with an underground excavated subway station as claimed in claim 1, wherein there are four said tunnels in S1, and said four said tunnels are equally spaced.
3. The method of claim 1, wherein in the step S2, in the stage of the shield tunnel passing through the station, the construction of the left side pile and the left middle pile is suspended, and after the shield tunnel passing through the station, the construction of the left side pile, the left middle pile and the left steel pipe column is continued.
4. The method of constructing a shield tunnel in parallel with an underground excavated subway station as claimed in claim 1, wherein said S9 middle and lower segments include a first lower half of a left steel pipe column and a second lower half of a right steel pipe column.
5. The method of shield tunnel construction in parallel with an underground excavated subway station as claimed in claim 1, wherein the first maintenance layer in S7, the second maintenance layer in S10 and the second maintenance layer in S11 are all obtained by laying waterproof, reinforcing bar installation and concrete pouring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111116966.8A CN113738380A (en) | 2021-09-23 | 2021-09-23 | Method for parallel construction of shield tunnel and underground excavated subway station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111116966.8A CN113738380A (en) | 2021-09-23 | 2021-09-23 | Method for parallel construction of shield tunnel and underground excavated subway station |
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| Publication Number | Publication Date |
|---|---|
| CN113738380A true CN113738380A (en) | 2021-12-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111116966.8A Pending CN113738380A (en) | 2021-09-23 | 2021-09-23 | Method for parallel construction of shield tunnel and underground excavated subway station |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1419020A (en) * | 2002-12-26 | 2003-05-21 | 北京城建设计研究院有限责任公司 | Method and structure for preventing and protecting near structure settlement by tunnel and isolation piling wall method |
| JP2005180177A (en) * | 2005-03-15 | 2005-07-07 | Taisei Corp | Shield machine of shallow earth covering |
| CN104653188A (en) * | 2015-02-04 | 2015-05-27 | 北京市政建设集团有限责任公司 | Method for arranging large-diameter shield receiving and originating well in underground-excavated air duct |
| CN104712343A (en) * | 2015-02-04 | 2015-06-17 | 北京市政建设集团有限责任公司 | Shield station passing method of first passing large shield through station and then building air flue structure |
| CN107288665A (en) * | 2017-08-21 | 2017-10-24 | 中国建筑第八工程局有限公司 | The construction method of Station |
| CN107575237A (en) * | 2017-08-23 | 2018-01-12 | 广州地铁设计研究院有限公司 | A kind of subsurface excavation method is combined the construction method of construction subway station with shield method |
| 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 |
| CN112160755A (en) * | 2020-08-26 | 2021-01-01 | 济南轨道交通集团有限公司 | Subway line construction method for expanding excavation station after shield tunnel construction in advance |
-
2021
- 2021-09-23 CN CN202111116966.8A patent/CN113738380A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1419020A (en) * | 2002-12-26 | 2003-05-21 | 北京城建设计研究院有限责任公司 | Method and structure for preventing and protecting near structure settlement by tunnel and isolation piling wall method |
| JP2005180177A (en) * | 2005-03-15 | 2005-07-07 | Taisei Corp | Shield machine of shallow earth covering |
| CN104653188A (en) * | 2015-02-04 | 2015-05-27 | 北京市政建设集团有限责任公司 | Method for arranging large-diameter shield receiving and originating well in underground-excavated air duct |
| CN104712343A (en) * | 2015-02-04 | 2015-06-17 | 北京市政建设集团有限责任公司 | Shield station passing method of first passing large shield through station and then building air flue structure |
| CN107288665A (en) * | 2017-08-21 | 2017-10-24 | 中国建筑第八工程局有限公司 | The construction method of Station |
| CN107575237A (en) * | 2017-08-23 | 2018-01-12 | 广州地铁设计研究院有限公司 | A kind of subsurface excavation method is combined the construction method of construction subway station with shield method |
| 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 |
| CN112160755A (en) * | 2020-08-26 | 2021-01-01 | 济南轨道交通集团有限公司 | Subway line construction method for expanding excavation station after shield tunnel construction in advance |
Non-Patent Citations (1)
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| 董凯: "基于道路沉降控制的富水软弱地层超浅埋暗挖地铁车站施工方案研究", 铁道建筑 * |
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| PB01 | Publication | ||
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Application publication date: 20211203 |