CN106437725A - Air flue underground excavation section structural construction method - Google Patents

Air flue underground excavation section structural construction method Download PDF

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Publication number
CN106437725A
CN106437725A CN201610932735.7A CN201610932735A CN106437725A CN 106437725 A CN106437725 A CN 106437725A CN 201610932735 A CN201610932735 A CN 201610932735A CN 106437725 A CN106437725 A CN 106437725A
Authority
CN
China
Prior art keywords
pilot tunnel
guide hole
lining
interim
temporary
Prior art date
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.)
Pending
Application number
CN201610932735.7A
Other languages
Chinese (zh)
Inventor
张永恒
高健
赵晨阳
蔡锐
朱玉明
李元昊
孙成辉
汪平
孟庆龙
吴传峰
刘俊
余甜甜
崔素君
王明兴
高英伟
宋良利
崔立峰
张行
武佳
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing Municipal Construction Co Ltd
Original Assignee
Beijing Municipal Construction Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Beijing Municipal Construction Co Ltd filed Critical Beijing Municipal Construction Co Ltd
Priority to CN201610932735.7A priority Critical patent/CN106437725A/en
Publication of CN106437725A publication Critical patent/CN106437725A/en
Pending legal-status Critical Current

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Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21DSHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D11/00Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21DSHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D9/00Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries

Abstract

The invention relates to an air flue underground excavation section structural construction method. The air flue underground excavation section structural construction method comprises the following steps that 1, concrete at the bottoms of temporary middle separation walls of a guide hole (10), a guide hole (11) and a guide hole (12) is demounted in a segmented mode, grating rebars are reserved, a secondary-lining structural bottom plate, waterproofness and part of side walls are constructed, and an all-around scaffold jacks the side walls and temporary inverted arches; 2, the ends of temporary middle separation walls of a guide hole (7), a guide hole (8) and a guide hole (9) are demounted in a segmented mode, a secondary-lining structure is constructed, and an all-around scaffold jacks the side walls and temporary inverted arches; 3, temporary middle separation plates of a guide hole (4), a guide hole (5) and a guide hole (6) are demounted in a segmented mode, a secondary-lining side wall and a middle plate are constructed, and an all-around scaffold jacks the side walls and temporary inverted arches; 4, concrete at the bottoms of temporary middle separation walls of a guide hole (1), a guide hole (2) and a guide hole (3) is sequentially demounted in a segmented mode, rebars are reserved, all-around support supporting tower top arch formworks are connected, a top arch secondary-lining structure is constructed, and internal temporary middle separation walls and inverted arches are demounted. The air flue underground excavation section structural construction method has the advantages of being easy and convenient to construct, safe, reliable, capable of controlling the problems of supporting deformation and arch stratum settlement easily and the like.

Description

A kind of air channel tunneling segment structure construction method
【Technical field】
The present invention relates to a kind of method of construction of ventilation passage of metro, and in particular to a kind of air channel tunneling segment structure construction method, belongs to City track traffic engineering technical field.
【Background technology】
Ventilation passage of metro structure typically all adopts double-decker pattern, mostly adopts cavern-pile method to build, and sets up temporary support, it is applied Work bothers, high cost, long construction period.For the air channel structure of large span, the span of pilot tunnel is very big, conventional Supporting structure system structural stability is poor, is difficult to control deformation and the arch stratum settlement of arch supporting construction, exists certain Potential safety hazard.
Therefore, for solving above-mentioned technical problem, it is necessory to provide a kind of air channel tunneling segment structure construction method of innovation, To overcome described defect of the prior art.
【Content of the invention】
It is an object of the invention to provide a kind of easy construction, safe and reliable and be easily controlled Support Deformation and arch stratum settlement The air channel tunneling segment structure construction method of problem.
For achieving the above object, the technical scheme that the present invention takes is:A kind of air channel tunneling segment structure construction method, it is special Levy and be:Comprise the steps:
1), segmentation dismounting pilot tunnel(10), pilot tunnel(11), pilot tunnel(12)Interim median septum bottom concrete simultaneously retains grid reinforcing bar, applies Ventilating shaft two lining structure base plate, waterproof and part side wall, and carry out full hall scaffold and hold out against side wall and interim inverted arch;
2)Pilot tunnel is removed in segmentation(7), pilot tunnel(8), pilot tunnel(9)Interim median septum end, applies two lining structures, and carries out full hall foot Hand cradle holds out against side wall and interim inverted arch;
3), segmentation dismounting pilot tunnel(4), pilot tunnel(5), pilot tunnel(6)Interim median septum, applies two lining side walls and middle plate, and carries out full Hall scaffold holds out against side wall and interim inverted arch;
4), segmentation dismounting pilot tunnel successively(1), pilot tunnel(2), pilot tunnel(3)Interim median septum bottom concrete simultaneously retains reinforcing bar, and continue full hall Red branch frame props up takes crown template, applies crown two lining structure;After two lining structures reach intensity, remove internal interim median septum and face upward Arch.
The air channel tunneling segment structure construction method of the present invention is further:Step 1)In, the longitudinal divisionses of full hall scaffold Length 6m, support body adopts 600*600*900 steel pipe support, arranges bridging simultaneously.
Compared with prior art, the present invention has the advantages that:The air channel tunneling segment structure construction method of the present invention There is easy construction, low cost, short construction period, safe and reliable and be easily controlled Support Deformation and arch stratum settlement problem etc. Plurality of advantages.
【Brief description】
Fig. 1 is the original state figure of the air channel road tunneling section of the present invention.
Fig. 2 is that the air channel road tunneling segment structure construction method of the present invention completes step 1)State diagram afterwards.
Fig. 3 is that the air channel road tunneling segment structure construction method of the present invention completes step 2)State diagram afterwards.
Fig. 4 is that the air channel road tunneling segment structure construction method of the present invention completes step 3)State diagram afterwards.
Fig. 5 is that the air channel road tunneling segment structure construction method of the present invention completes step 4)State diagram afterwards.
【Specific embodiment】
Refer to Figure of description 1 to shown in accompanying drawing 5, the present invention is a kind of air channel road tunneling segment structure construction method, and it includes Following construction procedure:
Comprise the steps:
1), segmentation dismounting pilot tunnel(10), pilot tunnel(11), pilot tunnel(12)Interim median septum bottom concrete simultaneously retains grid reinforcing bar, applies Ventilating shaft two lining structure base plate, waterproof and part side wall, and carry out full hall scaffold and hold out against side wall and interim inverted arch;Full hall scaffold Longitudinal divisionses length 6m, support body adopt 600*600*900 steel pipe support, simultaneously arrange bridging;As shown in Figure 2.
2)Pilot tunnel is removed in segmentation(7), pilot tunnel(8), pilot tunnel(9)Interim median septum end, applies two lining structures, and carries out full Hall scaffold holds out against side wall and interim inverted arch;As shown in Figure 3.
3), segmentation dismounting pilot tunnel(4), pilot tunnel(5), pilot tunnel(6)Interim median septum, applies two lining side walls and middle plate, goes forward side by side Row full hall scaffold holds out against side wall and interim inverted arch;As shown in Figure 4.
4), segmentation dismounting pilot tunnel successively(1), pilot tunnel(2), pilot tunnel(3)Interim median septum bottom concrete simultaneously retains reinforcing bar, continues All round victory support props up takes crown template, applies crown two lining structure;After two lining structures reach intensity, remove internal interim median septum And inverted arch;As shown in Figure 5.
Above specific embodiment is only the preferred embodiment of this creation, not in order to limit this creation, all in this wound Any modification, equivalent substitution and improvement of being done etc. within the spirit made and principle, should be included in this creation protection domain it Interior.

Claims (2)

1. a kind of air channel tunneling segment structure construction method it is characterised in that:Comprise the steps:
1), segmentation dismounting pilot tunnel(10), pilot tunnel(11), pilot tunnel(12)Interim median septum bottom concrete simultaneously retains grid reinforcing bar, applies Ventilating shaft two lining structure base plate, waterproof and part side wall, and carry out full hall scaffold and hold out against side wall and interim inverted arch;
2)Pilot tunnel is removed in segmentation(7), pilot tunnel(8), pilot tunnel(9)Interim median septum end, applies two lining structures, and carries out full hall foot Hand cradle holds out against side wall and interim inverted arch;
3), segmentation dismounting pilot tunnel(4), pilot tunnel(5), pilot tunnel(6)Interim median septum, applies two lining side walls and middle plate, and carries out full Hall scaffold holds out against side wall and interim inverted arch;
4), segmentation dismounting pilot tunnel successively(1), pilot tunnel(2), pilot tunnel(3)Interim median septum bottom concrete simultaneously retains reinforcing bar, and continue full hall Red branch frame props up takes crown template, applies crown two lining structure;After two lining structures reach intensity, remove internal interim median septum and face upward Arch.
2. tunneling segment structure construction method in air channel as claimed in claim 1 it is characterised in that:Step 1)In, full hall scaffold Longitudinal divisionses length 6m, support body adopt 600*600*900 steel pipe support, simultaneously arrange bridging.
CN201610932735.7A 2016-10-31 2016-10-31 Air flue underground excavation section structural construction method Pending CN106437725A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610932735.7A CN106437725A (en) 2016-10-31 2016-10-31 Air flue underground excavation section structural construction method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610932735.7A CN106437725A (en) 2016-10-31 2016-10-31 Air flue underground excavation section structural construction method

Publications (1)

Publication Number Publication Date
CN106437725A true CN106437725A (en) 2017-02-22

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610932735.7A Pending CN106437725A (en) 2016-10-31 2016-10-31 Air flue underground excavation section structural construction method

Country Status (1)

Country Link
CN (1) CN106437725A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108316308A (en) * 2018-01-11 2018-07-24 中国电建集团铁路建设有限公司 A kind of method for dismounting of the interim median septum of big cross section multiple tracks
CN108457656A (en) * 2018-03-05 2018-08-28 北京市政建设集团有限责任公司 A kind of unearthed method for tunnel construction
CN110094214A (en) * 2019-04-12 2019-08-06 中铁七局集团有限公司 A kind of shallow-depth-excavation tunnel secondary lining removable support system construction method
CN111156035A (en) * 2020-03-10 2020-05-15 北京市政建设集团有限责任公司 Template supporting method and template supporting structure for tunnel secondary lining
CN110094214B (en) * 2019-04-12 2021-06-04 中铁七局集团有限公司 Construction method of secondary lining movable support system for shallow-buried underground excavation tunnel

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1563671A (en) * 2004-03-19 2005-01-12 刘昌用 Dormant digging and separating construction method for underground two layers and multilayer composite lining structure
CN101086209A (en) * 2007-07-23 2007-12-12 北京交通大学 Shield tunneling and shallow tunneling combined construction method for building underground station
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
CN105298501A (en) * 2015-11-11 2016-02-03 上海市城市建设设计研究总院 Construction method for auxiliary air duct structure of underground excavation station

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1563671A (en) * 2004-03-19 2005-01-12 刘昌用 Dormant digging and separating construction method for underground two layers and multilayer composite lining structure
CN101086209A (en) * 2007-07-23 2007-12-12 北京交通大学 Shield tunneling and shallow tunneling combined construction method for building underground station
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
CN105298501A (en) * 2015-11-11 2016-02-03 上海市城市建设设计研究总院 Construction method for auxiliary air duct structure of underground excavation station

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108316308A (en) * 2018-01-11 2018-07-24 中国电建集团铁路建设有限公司 A kind of method for dismounting of the interim median septum of big cross section multiple tracks
CN108316308B (en) * 2018-01-11 2021-01-19 中国电建集团铁路建设有限公司 Method for dismantling large-section multi-channel temporary middle partition wall
CN108457656A (en) * 2018-03-05 2018-08-28 北京市政建设集团有限责任公司 A kind of unearthed method for tunnel construction
CN110094214A (en) * 2019-04-12 2019-08-06 中铁七局集团有限公司 A kind of shallow-depth-excavation tunnel secondary lining removable support system construction method
CN110094214B (en) * 2019-04-12 2021-06-04 中铁七局集团有限公司 Construction method of secondary lining movable support system for shallow-buried underground excavation tunnel
CN111156035A (en) * 2020-03-10 2020-05-15 北京市政建设集团有限责任公司 Template supporting method and template supporting structure for tunnel secondary lining

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Application publication date: 20170222

RJ01 Rejection of invention patent application after publication