CN103821167A - Construction method for subway station body - Google Patents

Construction method for subway station body Download PDF

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Publication number
CN103821167A
CN103821167A CN201410095835.XA CN201410095835A CN103821167A CN 103821167 A CN103821167 A CN 103821167A CN 201410095835 A CN201410095835 A CN 201410095835A CN 103821167 A CN103821167 A CN 103821167A
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China
Prior art keywords
pilot tunnel
excavation
construction
station
concrete
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Pending
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CN201410095835.XA
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Chinese (zh)
Inventor
蔡锐
陈海涛
朱玉明
胡嵩
张永生
乜连昇
吴传锋
赵璞君
乔国刚
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Beijing Municipal Construction Co Ltd
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Beijing Municipal Construction Co Ltd
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Priority to CN201410095835.XA priority Critical patent/CN103821167A/en
Publication of CN103821167A publication Critical patent/CN103821167A/en
Pending legal-status Critical Current

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Abstract

The invention relates to a construction method for a subway station body. The construction method includes the following steps that pilot tunnels are excavated, and primary support is constructed; after cutthrough of each lower pilot tunnel, a strip-shaped foundation of each lower side pilot tunnel is constructed; pile top beams and large arch springings are constructed on the upper layer side pilot tunnels in a moulding mode; the inner side of the upper layer middle pilot tunnel is reinforced through a top longitudinal beam, a ground layer is reinforced through preliminary grouting in advance, and a soil body part I is excavated symmetrically left and right; a soil body part II is symmetrically excavated, and arch primary support is constructed; after cutthrough of the primary support, a medium partition, a waterproof plate and a protective layer are cut off in a segment mode through an inverted supporting method; excavation is downwards performed in a layered mode in the longitudinal direction of a subway station to the bottom elevation of a station hall plate; after medium plate concrete reaches design strength, excavation is downwards performed in a layered mode by 3.5 m along the longitudinal direction of the station; slope excavation is longitudinally performed downwards in a layered and segment mode to the position of 370 mm below the bottom elevation of the station hall plate according to the scale of 1:1, a thick section steel sprayed mixed cushion layer, a waterproof layer and a waterproof protective layer are constructed; a side wall waterproof layer is laid, and side wall concrete is poured; an inner structure is constructed to finish structure construction of the station. The construction method has the advantages of being high in efficiency, short in construction period, safe in construction and the like.

Description

The construction method of a kind of subway station main body
[technical field]
The present invention relates to a kind of architecture construction method, be specifically related to the construction method of a kind of subway station main body, belong to technical field of civil engineering.
[background technology]
The subway station main body of prior art mainly adopts the construction of hole stake method, and its overall sequence of construction is as follows:
1. in transverse passage-way, complete preliminary bracing button arch and the strengthening measure of agent structure, make the Path of Force Transfer of transverse passage-way by top board-side wall-base plate-stratum, be converted to transverse passage-way top board-agent structure preliminary bracing top board-Guan Liang and top longeron-steel core concrete column and skirt piles-bottom girder and bar base-stratum.
2. encircle to start agent structure preliminary bracing button away from transverse passage-way direction from transverse passage-way, and pilot tunnel side wall must not cut; From termination, station or two transverse passage-way centre positions start agent structure two lining button arch to transverse passage-way direction, when button arch, the segmentation of pilot tunnel side wall is removed, section length be a post across.
3. just lining button arched girder across the construction simultaneously of should try one's best, if symmetrical construction at need excavation face stagger and should be less than 3~5m, just lining button carries out two lining buttons and encircles and construct after encircle; After two lining buttons have encircleed, can be from top to bottom earth excavation successively.
The construction method of above-mentioned subway station main body exists following defect: long construction period, and efficiency is low, and security risk control is poor.
Therefore,, for solving the problems of the technologies described above, the necessary construction method that a kind of subway station main body is provided, to overcome described defect of the prior art.
[summary of the invention]
For addressing the above problem, the object of the present invention is to provide a kind of efficiency high, the construction method of the subway station main body of short and construction safety of duration.
For achieving the above object, the technical scheme that the present invention takes is: the construction method of a kind of subway station main body, and it comprises following processing step:
1), pre-Grouting Consolidation, excavation pilot tunnel, and apply preliminary bracing; Excavation is when pilot tunnel, and the first upper pilot tunnel of excavation after the lower pilot tunnel of excavation first excavates after the pilot tunnel of limit pilot tunnel in excavation;
2),, after lower pilot tunnel connects, retreat and apply strip foundation in following pilot tunnel; On top in pilot tunnel, apply skirt piles, between skirt piles outside and pilot tunnel, adopt C20 concrete backfill; In middle pilot tunnel, construct steel core concrete column borehole retaining wall between upper and lower pilot tunnel and bottom girder under middle standing pillar;
3), limit, upper strata pilot tunnel mould is built an apical cap beam and large arch springing, itself and top pilot tunnel is just propped up and skirt piles formation overall structure; In middle pilot tunnel, apply steel pipe column, top longeron, reserved steel bar and water joint;
4), side direction is reinforced top longeron in the pilot tunnel of upper strata, leading pre-Grouting Consolidation, and the symmetrical excavation I portion soil body, applies arch preliminary bracing and median septum, inverted arch;
5), after the leading 15m of I portion soil excavation, the symmetrical II portion soil body that excavates, applies arch preliminary bracing;
6.), after first Zhi Guantong, median septum is removed in 4~6m segmentation, and one-time-concreting concrete roof, reaches after design strength until the preceding paragraph concrete, carries out that next section of median septum is blocked and top board is built;
7), reach after design strength until vault concrete, longitudinal layeredly along station be excavated to absolute altitude at the bottom of subway concourse plate downwards; Segmentation applies topotype, lays side wall waterproofing course, builds middle plated construction, station hall layer side wall;
8), middle board concrete reaches after design strength, the longitudinal layered downward excavation 3.5m along station;
9), segmentation is put under slope aspect and is excavated to 370mm under floor level for longitudinal 1: 1, executes in time the mixed bed course of the thick shaped steel spray of 300mm, and construction waterproof layer and fish tail and waterproof layer, build base plate two linings in time; Lay side wall waterproofing course, build side wall concrete;
10), concrete reaches after design strength, and construction internal construction completes station structure construction.
The construction method of subway station of the present invention main body is further: described step 1) in, benching tunnelling method excavation pilot tunnel adopted.
The construction method of subway station of the present invention main body is further: described step 2) in, skirt piles need excavated by manual work stake to jump hole construction, dig one every three.
The construction method of subway station of the present invention main body also can be: described step 4) in, adopt the symmetrical excavation of the CD method I portion soil body, in shoveling process, do not remove pilot tunnel abutment wall.
Compared with prior art, the present invention has following beneficial effect: it is high that the construction method of subway station of the present invention main body has efficiency, the plurality of advantages such as short and construction safety of duration.
[accompanying drawing explanation]
Fig. 1 is the construction method step 1 of subway station of the present invention main body) schematic diagram.
Fig. 2 is the construction method step 2 of subway station of the present invention main body) schematic diagram.
Fig. 3 is the construction method step 3 of subway station of the present invention main body) schematic diagram.
Fig. 4 is the construction method step 4 of subway station of the present invention main body) schematic diagram.
Fig. 5 is the construction method step 5 of subway station of the present invention main body) schematic diagram.
Fig. 6 is the construction method step 6 of subway station of the present invention main body) schematic diagram.
Fig. 7 is the construction method step 7 of subway station of the present invention main body) schematic diagram.
Fig. 8 is the construction method step 8 of subway station of the present invention main body) schematic diagram.
Fig. 9 is the construction method step 9 of subway station of the present invention main body) schematic diagram.
Figure 10 is the construction method step 10 of subway station of the present invention main body) schematic diagram.
[specific embodiment]
The present invention is the construction method of a kind of subway station main body, and it comprises following processing step:
1), by the pre-Grouting Consolidation of advanced tubule 1, excavation pilot tunnel 2, and apply preliminary bracing; Excavation is when pilot tunnel, and the first upper pilot tunnel of excavation after the lower pilot tunnel of excavation first excavates after the pilot tunnel of limit pilot tunnel in excavation; Wherein, adopt benching tunnelling method excavation pilot tunnel;
2),, after lower pilot tunnel connects, retreat and apply strip foundation 3 in following pilot tunnel; On top in pilot tunnel, apply skirt piles 4, between skirt piles outside and pilot tunnel, adopt 5 backfills of C20 concrete; In middle pilot tunnel, construct steel core concrete column borehole retaining wall between upper and lower pilot tunnel and bottom girder 6 under middle standing pillar; Wherein, skirt piles need excavated by manual work stake to jump hole construction, dig one every three;
3), limit, upper strata pilot tunnel mould is built an apical cap beam 7 and large arch springing 8, itself and top pilot tunnel is just propped up and skirt piles formation overall structure; In middle pilot tunnel, apply steel pipe column 9, top longeron 10, reserved steel bar and water joint;
4), side direction is reinforced top longeron in the pilot tunnel of upper strata, leading pre-Grouting Consolidation, and the symmetrical excavation I portion soil body, applies arch preliminary bracing and median septum, inverted arch; Wherein adopt the symmetrical excavation of the CD method I portion soil body, in shoveling process, do not remove pilot tunnel abutment wall;
5), after the leading 15m of I portion soil excavation, the symmetrical II portion soil body that excavates, applies arch preliminary bracing;
6.), after first Zhi Guantong, median septum is removed in 4~6m segmentation, and one-time-concreting concrete roof 11, reaches after design strength until the preceding paragraph concrete, carries out that next section of median septum is blocked and top board is built;
7), reach after design strength until vault concrete, longitudinal layeredly along station be excavated to absolute altitude at the bottom of subway concourse plate downwards; Segmentation applies topotype, lays side wall waterproofing course, builds middle plated construction 12, station hall layer side wall 13;
8), middle board concrete reaches after design strength, the longitudinal layered downward excavation 3.5m along station;
9), segmentation is put under slope aspect and is excavated to 370mm under floor level for longitudinal 1: 1, the mixed bed course of the thick shaped steel spray of the 300mm that constructs in time, and construction waterproof layer and fish tail and waterproof layer, build in time base plate two and serve as a contrast 14; Lay side wall waterproofing course, build side wall concrete 15;
10), concrete reaches after design strength, and construction internal construction 16 completes station structure construction.
The above specific embodiment is only the preferred embodiment of this creation, not in order to limit this creation, any modification of making, is equal to replacement, improvement etc., within all should being included in the protection domain of this creation within all spirit in this creation and principle.

Claims (4)

1. a construction method for subway station main body, is characterized in that: comprise following processing step:
1), pre-Grouting Consolidation, excavation pilot tunnel, and apply preliminary bracing; Excavation is when pilot tunnel, and the first upper pilot tunnel of excavation after the lower pilot tunnel of excavation first excavates after the pilot tunnel of limit pilot tunnel in excavation;
2),, after lower pilot tunnel connects, retreat and apply strip foundation in following pilot tunnel; On top in pilot tunnel, apply skirt piles, between skirt piles outside and pilot tunnel, adopt C20 concrete backfill; In middle pilot tunnel, construct steel core concrete column borehole retaining wall between upper and lower pilot tunnel and bottom girder under middle standing pillar;
3), limit, upper strata pilot tunnel mould is built an apical cap beam and large arch springing, itself and top pilot tunnel is just propped up and skirt piles formation overall structure; In middle pilot tunnel, apply steel pipe column, top longeron, reserved steel bar and water joint;
4), side direction is reinforced top longeron in the pilot tunnel of upper strata, leading pre-Grouting Consolidation, and the symmetrical excavation I portion soil body, applies arch preliminary bracing and median septum, inverted arch;
5), after the leading 15m of I portion soil excavation, the symmetrical II portion soil body that excavates, applies arch preliminary bracing;
6), after first Zhi Guantong, median septum is removed in 4~6m segmentation, and one-time-concreting concrete roof, reaches after design strength until the preceding paragraph concrete, carries out that next section of median septum is blocked and top board is built;
7), reach after design strength until vault concrete, longitudinal layeredly along station be excavated to absolute altitude at the bottom of subway concourse plate downwards; Segmentation applies topotype, lays side wall waterproofing course, builds middle plated construction, station hall layer side wall;
8), middle board concrete reaches after design strength, the longitudinal layered downward excavation 3.5m along station;
9), segmentation is put under slope aspect and is excavated to 370mm under floor level for longitudinal 1: 1, the mixed bed course of the thick shaped steel spray of the 300mm that constructs in time, and construction waterproof layer and fish tail and waterproof layer, build base plate two linings in time; Lay side wall waterproofing course, build side wall concrete;
10), concrete reaches after design strength, and construction internal construction completes station structure construction.
2. the construction method of subway station as claimed in claim 1 main body, is characterized in that: described step 1) in, benching tunnelling method excavation pilot tunnel adopted.
3. the construction method of subway station as claimed in claim 1 main body, is characterized in that: described step 2) in, skirt piles need excavated by manual work stake to jump hole construction, dig one every three.
4. the construction method of subway station as claimed in claim 1 main body, is characterized in that: described step 4) in, adopt the symmetrical excavation of the CD method I portion soil body, in shoveling process, do not remove pilot tunnel abutment wall.
CN201410095835.XA 2014-03-17 2014-03-17 Construction method for subway station body Pending CN103821167A (en)

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Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104120739A (en) * 2014-08-11 2014-10-29 北京市政建设集团有限责任公司 Multi-pilot tunnel excavation one-off arching construction method
CN104806251A (en) * 2015-04-27 2015-07-29 北京市轨道交通建设管理有限公司 Subsidiary inverted excavation construction method for urban subway station under complex environment
CN105714856A (en) * 2016-04-30 2016-06-29 北京城乡建设集团有限责任公司 Underground air duct construction method with first negative structural layer and second negative structural layer in bottom-up
CN106640121A (en) * 2017-01-11 2017-05-10 中铁隧道勘测设计院有限公司 Supporting structure for six-pilot-holes large-section metro station undercrossing existing line
CN106703814A (en) * 2015-07-30 2017-05-24 宏润建设集团股份有限公司 Mined metro station hole pile construction method
CN107100653A (en) * 2017-05-23 2017-08-29 中铁四局集团第五工程有限公司 A kind of flat top wall pipe curtain structure builds the construction method of super Shallow Covered Metro Station
CN107120119A (en) * 2017-05-04 2017-09-01 中交第二航务工程局有限公司 The construction method of Underground Subway Station
CN107574830A (en) * 2017-09-08 2018-01-12 中铁十六局集团地铁工程有限公司 A kind of subway station combines the precipitation method of piping lane construction
CN108005664A (en) * 2018-02-02 2018-05-08 北京市政建设集团有限责任公司 A kind of hole pile construction method of platform structure
CN108277823A (en) * 2018-02-02 2018-07-13 北京市政建设集团有限责任公司 A kind of construction method of subway platform layer totality
CN109487798A (en) * 2018-12-29 2019-03-19 中交(广州)建设有限公司 Station asymmetry excavation supporting structure and construction technology
CN110374643A (en) * 2019-08-22 2019-10-25 中水电四局武汉轨道交通工程有限公司 A kind for the treatment of water leakage method at Underground Subway Station arch structure dovetail
CN111997625A (en) * 2020-08-27 2020-11-27 合肥市轨道交通集团有限公司 Underground excavation construction method for subway station in weak-expansibility clay stratum
CN113738377A (en) * 2021-09-06 2021-12-03 中铁二局第四工程有限公司 Construction method of main structure of station by rock stratum hole-pile method
CN114033390A (en) * 2021-11-12 2022-02-11 中铁北京工程局集团(天津)工程有限公司 PBA construction method construction process
CN114457846A (en) * 2021-11-17 2022-05-10 中国水利水电第六工程局有限公司 Road station main body structure construction method

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104120739A (en) * 2014-08-11 2014-10-29 北京市政建设集团有限责任公司 Multi-pilot tunnel excavation one-off arching construction method
CN104806251A (en) * 2015-04-27 2015-07-29 北京市轨道交通建设管理有限公司 Subsidiary inverted excavation construction method for urban subway station under complex environment
CN104806251B (en) * 2015-04-27 2017-05-17 北京市轨道交通建设管理有限公司 Subsidiary inverted excavation construction method for urban subway station under complex environment
CN106703814B (en) * 2015-07-30 2019-07-12 宏润建设集团股份有限公司 Tunneling subway station hole pile construction method
CN106703814A (en) * 2015-07-30 2017-05-24 宏润建设集团股份有限公司 Mined metro station hole pile construction method
CN105714856A (en) * 2016-04-30 2016-06-29 北京城乡建设集团有限责任公司 Underground air duct construction method with first negative structural layer and second negative structural layer in bottom-up
CN106640121A (en) * 2017-01-11 2017-05-10 中铁隧道勘测设计院有限公司 Supporting structure for six-pilot-holes large-section metro station undercrossing existing line
CN106640121B (en) * 2017-01-11 2023-06-27 中铁第六勘察设计院集团有限公司 Supporting structure for six-pilot tunnel large-section subway station to pass through existing line
CN107120119A (en) * 2017-05-04 2017-09-01 中交第二航务工程局有限公司 The construction method of Underground Subway Station
CN107100653A (en) * 2017-05-23 2017-08-29 中铁四局集团第五工程有限公司 A kind of flat top wall pipe curtain structure builds the construction method of super Shallow Covered Metro Station
CN107574830A (en) * 2017-09-08 2018-01-12 中铁十六局集团地铁工程有限公司 A kind of subway station combines the precipitation method of piping lane construction
CN108277823A (en) * 2018-02-02 2018-07-13 北京市政建设集团有限责任公司 A kind of construction method of subway platform layer totality
CN108005664A (en) * 2018-02-02 2018-05-08 北京市政建设集团有限责任公司 A kind of hole pile construction method of platform structure
CN109487798A (en) * 2018-12-29 2019-03-19 中交(广州)建设有限公司 Station asymmetry excavation supporting structure and construction technology
CN109487798B (en) * 2018-12-29 2024-03-22 中交(广州)建设有限公司 Asymmetric excavation construction process for station
CN110374643A (en) * 2019-08-22 2019-10-25 中水电四局武汉轨道交通工程有限公司 A kind for the treatment of water leakage method at Underground Subway Station arch structure dovetail
CN111997625A (en) * 2020-08-27 2020-11-27 合肥市轨道交通集团有限公司 Underground excavation construction method for subway station in weak-expansibility clay stratum
CN113738377A (en) * 2021-09-06 2021-12-03 中铁二局第四工程有限公司 Construction method of main structure of station by rock stratum hole-pile method
CN114033390A (en) * 2021-11-12 2022-02-11 中铁北京工程局集团(天津)工程有限公司 PBA construction method construction process
CN114457846A (en) * 2021-11-17 2022-05-10 中国水利水电第六工程局有限公司 Road station main body structure construction method

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