CN106948839A - A kind of tunnel benching tunnelling method construction steel diaphragm and construction method - Google Patents

A kind of tunnel benching tunnelling method construction steel diaphragm and construction method Download PDF

Info

Publication number
CN106948839A
CN106948839A CN201710286832.8A CN201710286832A CN106948839A CN 106948839 A CN106948839 A CN 106948839A CN 201710286832 A CN201710286832 A CN 201710286832A CN 106948839 A CN106948839 A CN 106948839A
Authority
CN
China
Prior art keywords
construction
isolation
steel
slot
tunnel
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
CN201710286832.8A
Other languages
Chinese (zh)
Inventor
李庚许
杨彦岭
王端峰
闫肃
宋青波
李健
张奇
单洪涛
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.)
China Railway 16th Bureau Group Co Ltd
Original Assignee
CHINA RAILWAY 16TH BUREAU GROUP FOURTH ENGINEERING 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 CHINA RAILWAY 16TH BUREAU GROUP FOURTH ENGINEERING Co Ltd filed Critical CHINA RAILWAY 16TH BUREAU GROUP FOURTH ENGINEERING Co Ltd
Priority to CN201710286832.8A priority Critical patent/CN106948839A/en
Publication of CN106948839A publication Critical patent/CN106948839A/en
Pending legal-status Critical Current

Links

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
    • E21D11/04Lining with building materials
    • E21D11/10Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor

Abstract

The invention discloses a kind of tunnel benching tunnelling method construction steel diaphragm, including isolation part, the fixed part for being provided with and being engaged with four limbs grid steel frame arch springing on rear side of handle, the isolation part is provided with front side of the isolation part, the fixed part includes some through slots openend backward.Beneficial effects of the present invention:Make simple, simple operation, can be recycled, and optimize preliminary bracing, construction of shotcrete technique, solve to get out of a predicament or an embarrassing situation between gunite concrete and top bar gunite concrete and there is weak intercalated layer and combined uncompacted quality problems, it is ensured that sprayed concrete strength at arch springing.

Description

A kind of tunnel benching tunnelling method construction steel diaphragm and construction method
Technical field
The present invention relates to technical field of tunnel construction, it particularly relates to a kind of tunnel benching tunnelling method construction steel diaphragm and Construction method.
Background technology
Xiaoshan Mountain tunnel is double holes single-track tunnel, and start-stop mileage is DK694+053(YDK694+045)~DK716+804 (YDK716+801), left threaded list road total length 22751m, right threaded list road total length 22771m.Mileage paragraph wherein more than 1/5 is IV, V grade of country rock, using benching tunnelling method excavation, the preliminary bracing of four limbs grid steel frame, the spray concrete closing of wet shot manipulator.
IVth, V grade of country rock is because of rock crusher, and just branch arch springing gunite concrete is bonded top bar with dregs, excavation of getting out of a predicament or an embarrassing situation Afterwards, the dregs that arch springing gunite concrete is bonded is removed not thoroughly, is had follow-up gunite concrete of getting out of a predicament or an embarrassing situation and is sprayed with early stage top bar Penetrate between concrete and there is weak intercalated layer with reference to uncompacted quality problems.
The problem of in correlation technique, effective solution is not yet proposed at present.
The content of the invention
For the above-mentioned technical problem in correlation technique, the present invention proposes a kind of tunnel benching tunnelling method construction steel diaphragm, solution Determine to get out of a predicament or an embarrassing situation between gunite concrete and top bar gunite concrete and there is weak intercalated layer and combined uncompacted quality problems.
To realize above-mentioned technical purpose, the technical proposal of the invention is realized in this way:
Handle, the isolation are provided with front side of a kind of tunnel benching tunnelling method construction steel diaphragm, including isolation part, the isolation part It is provided with the fixed part being engaged with four limbs grid steel frame arch springing on rear side of portion, the fixed part includes openend backward some Through slot.
Further, the left and right length of the steel diaphragm is 68mm, and anterior-posterior length is 50mm.
Further, the quantity of the through slot is two, and through slot is symmetrical set described in two.
Further, the anterior-posterior length of the through slot is 25mm, and left and right length is 4mm, and through slot described in two is left Right septum 18mm.
The invention also discloses a kind of construction method of steel diaphragm, comprise the following steps:
S1 sets the four limbs grid steel frame as first branch at top bar;
The steel form is placed at the top of the dregs at the just branch arch springing by S2, and promotes the steel form backward until described first The arch springing of branch is embedded in the through slot;
S3 will be cleaned out at the top of the isolation part, and be started since at the top of the isolation part upwards along branch gunite concrete at the beginning of described Close to form concrete layer;
S4 removes the steel form, and excavation is got out of a predicament or an embarrassing situation and gunite concrete with the concrete layer to be combined.
Beneficial effects of the present invention:Make simple, simple operation can be recycled, optimize preliminary bracing, injection coagulation Native construction technology, solve get out of a predicament or an embarrassing situation between gunite concrete and top bar gunite concrete exist weak intercalated layer combined it is uncompacted Quality problems, it is ensured that sprayed concrete strength at arch springing.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to institute in embodiment The accompanying drawing needed to use is briefly described, it should be apparent that, drawings in the following description are only some implementations of the present invention Example, for those of ordinary skill in the art, on the premise of not paying creative work, can also be obtained according to these accompanying drawings Obtain other accompanying drawings.
Fig. 1 is the structural representation of tunnel benching tunnelling method construction steel diaphragm described according to embodiments of the present invention;
Fig. 2 is schematic diagram when tunnel benching tunnelling method construction described according to embodiments of the present invention is constructed with steel diaphragm.
In figure:
1st, isolation part;2nd, handle;3rd, through slot;4th, four limbs grid steel frame;5th, dregs;6th, concrete layer;7th, top bar;8th, leave office Rank.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on Embodiment in the present invention, the every other embodiment that those of ordinary skill in the art are obtained belongs to what the present invention was protected Scope.
As shown in Figure 1-2, a kind of described tunnel benching tunnelling method construction steel diaphragm according to embodiments of the present invention, including isolation Portion 1, the front side of the isolation part 1 is provided with handle 2, and the rear side of the isolation part 1 is provided with and the arch springing phase of four limbs grid steel frame 4 The fixed part of cooperation, the fixed part includes some through slots 3 openend backward.
In one particular embodiment of the present invention, the left and right length of the steel diaphragm is 68mm, and anterior-posterior length is 50mm.
In one particular embodiment of the present invention, the quantity of the through slot 3 is two, through slot 3 or so described in two It is symmetrical arranged.
In one particular embodiment of the present invention, the anterior-posterior length of the through slot 3 is 25mm, and left and right length is 4mm, And through slot 3 is between left and right every 18mm described in two.
The invention also discloses a kind of construction method of steel diaphragm, comprise the following steps:
S1 sets the four limbs grid steel frame 4 as first branch at top bar 7;
The top of dregs 5 that the steel form is placed at the just branch arch springing by S2, and the steel form is promoted backward until described The arch springing just propped up is embedded in the through slot 3;
S3 clean out the top of the isolation part 1, and start upwards along the just branch injection coagulation since the top of isolation part 1 Grave closes to form concrete layer 6;
S4 removes the steel form, excavation get out of a predicament or an embarrassing situation 8 and gunite concrete to be combined with the concrete layer 6.
Understand for convenience the present invention above-mentioned technical proposal, below by way of in specifically used mode to the present invention it is above-mentioned Technical scheme is described in detail.
When this bright core content is using steel diaphragm construction, concrete strength at just branch arch springing can be both ensured, again Construction speed is not interfered with.In benching tunnelling method construction spray concrete eve, the cleaning of steel diaphragm is carried out, spray concrete is then carried out immediately Prevent that dregs from polluting steel diaphragm, spray concrete closing from bottom to top by steel diaphragm.
To sum up, by means of the above-mentioned technical proposal of the present invention, at the beginning of excavating four limbs grid steel frame for benching tunnelling method the characteristics of branch, By steel diaphragm, preliminary bracing, construction of shotcrete technique are optimized, gunite concrete of getting out of a predicament or an embarrassing situation is solved and is sprayed with top bar Penetrate between concrete and there is weak intercalated layer with reference to uncompacted quality problems, it is ensured that sprayed concrete strength at arch springing, to similar Engineering has reference.
These are only presently preferred embodiments of the present invention, be not intended to limit the invention, it is all the present invention spirit and Within principle, any modifications, equivalent substitutions and improvements made etc. should be included within the scope of the present invention.

Claims (5)

1. a kind of tunnel benching tunnelling method construction steel diaphragm, it is characterised in that including isolation part(1), the isolation part(1)Front side It is provided with handle(2), the isolation part(1)Rear side be provided with and four limbs grid steel frame(4)The fixed part that arch springing is engaged, institute State some through slots that fixed part includes openend backward(3).
2. benching tunnelling method construction steel diaphragm in tunnel according to claim 1, it is characterised in that the left and right of the steel diaphragm is long Spend for 68mm, anterior-posterior length is 50mm.
3. benching tunnelling method construction steel diaphragm in tunnel according to claim 2, it is characterised in that the through slot(3)Number Measure as two, through slot described in two(3)It is symmetrical set.
4. benching tunnelling method construction steel diaphragm in tunnel according to claim 3, it is characterised in that the through slot(3)Before Length is 25mm afterwards, and left and right length is 4mm, and through slot described in two(3)Between left and right every 18mm.
5. a kind of construction method of steel diaphragm according to claim 1, it is characterised in that comprise the following steps:
S1 is in top bar(7)Place sets the four limbs grid steel frame(4)It is used as first branch;
The dregs that the steel form is placed at the just branch arch springing by S2(5)Top, and the steel form is promoted backward until institute State the arch springing just propped up and be embedded in the through slot(3)In;
S3 is by the isolation part(1)Top is cleaned out, and from the isolation part(1)Top starts to spray along the just branch upwards Concrete enclosing is to form concrete layer(6);
S4 removes the steel form, and excavation is got out of a predicament or an embarrassing situation(8)And gunite concrete with the concrete layer(6)With reference to.
CN201710286832.8A 2017-04-27 2017-04-27 A kind of tunnel benching tunnelling method construction steel diaphragm and construction method Pending CN106948839A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710286832.8A CN106948839A (en) 2017-04-27 2017-04-27 A kind of tunnel benching tunnelling method construction steel diaphragm and construction method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710286832.8A CN106948839A (en) 2017-04-27 2017-04-27 A kind of tunnel benching tunnelling method construction steel diaphragm and construction method

Publications (1)

Publication Number Publication Date
CN106948839A true CN106948839A (en) 2017-07-14

Family

ID=59476920

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710286832.8A Pending CN106948839A (en) 2017-04-27 2017-04-27 A kind of tunnel benching tunnelling method construction steel diaphragm and construction method

Country Status (1)

Country Link
CN (1) CN106948839A (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101737063A (en) * 2009-11-16 2010-06-16 西安理工大学 Ground fissure tunnel asphalt concrete composite lining and supporting method thereof
CN101864960A (en) * 2010-05-17 2010-10-20 中铁二十局集团有限公司 Carst region double-arch road tunnel construction method
CN102758637A (en) * 2012-07-16 2012-10-31 中铁隧道集团有限公司 Tunnel secondary lining structure composed of profiled steel sheets and concrete
KR101353882B1 (en) * 2013-05-09 2014-01-22 서동현 Method of reinforcement and construction of pillar of neighboring tunnel
CN104612698A (en) * 2015-01-24 2015-05-13 杭州天恒投资建设管理有限公司 Method for constructing upper step middle partition wall of shallow-buried excavation tunnel

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101737063A (en) * 2009-11-16 2010-06-16 西安理工大学 Ground fissure tunnel asphalt concrete composite lining and supporting method thereof
CN101864960A (en) * 2010-05-17 2010-10-20 中铁二十局集团有限公司 Carst region double-arch road tunnel construction method
CN102758637A (en) * 2012-07-16 2012-10-31 中铁隧道集团有限公司 Tunnel secondary lining structure composed of profiled steel sheets and concrete
KR101353882B1 (en) * 2013-05-09 2014-01-22 서동현 Method of reinforcement and construction of pillar of neighboring tunnel
CN104612698A (en) * 2015-01-24 2015-05-13 杭州天恒投资建设管理有限公司 Method for constructing upper step middle partition wall of shallow-buried excavation tunnel

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
陈雨: "拱墙脚喷射混凝土连接技术探讨", 《中文科技期刊数据库(引文版) 工程技术》 *

Similar Documents

Publication Publication Date Title
CN104847374B (en) Large-deformation tunnel in soft rock support system and its construction method
CN104653197B (en) Method for constructing extra-large variable cross section tunnel
CN202690082U (en) Combined steel frame structure for preventing deformation and subsidence of tunnel
CN108019222B (en) A kind of tunnel lining structure and construction method using haydite filling
CN102226398A (en) Soft rock four-line large-span tunnel compound double-side wall bracing cable conversion excavation construction method
CN203080518U (en) Self-drilling type recoverable anchor wire
CN102002957B (en) Slope retaining structure
CN201981532U (en) Bearing type super deep underground continuous wall adaptor
CN105507908B (en) A kind of large cross-section tunnel branch-cut bridge Duan Sanlian encircles construction technology
CN102305077A (en) Rapid construction method of large-section multi-arc tunnel
CN104775830B (en) A kind of swelled ground tunnel arch wall preliminary bracing construction method
CN102562099B (en) Method for carrying out rapid face excavation construction of loess tunnel by double rows of small conduits
CN107654234A (en) A kind of construction method of subway tunnel crossing subway station diaphram wall
CN203547773U (en) Channel combined support structure suitable for slowly inclined stratified rock mass
CN101251015A (en) Construction method for exchanging shield ventral brush
CN104389314B (en) A kind of shallow clay grouting and reinforcing device and method
CN104612698A (en) Method for constructing upper step middle partition wall of shallow-buried excavation tunnel
CN105736017B (en) A kind of positive and negative arrangement arch frame structure of Tunnel asymmetric cell
CN104653187B (en) Water-rich sand layer geology large cross-section tunnel excavation method
CN103362515B (en) Shield structure soil storehouse water under high pressure flushing system
CN203603930U (en) Device for preventing tunnel secondary lining vault from disengaging
CN102226399A (en) Soft rock four-line large-span tunnel three-bench cable-bracing excavation construction method
CN103628884B (en) Shared Rock of Neighborhood Tunnel reinforcement means
CN104963705B (en) A kind of underground space tunneling construction method
CN102373930A (en) Rapid construction method of weak surrounding rock large-section multi-arc tunnel

Legal Events

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
CB03 Change of inventor or designer information
TA01 Transfer of patent application right

Effective date of registration: 20170918

Address after: 101400 No. 2 Yingbin Middle Road, Huairou District, Beijing

Applicant after: China Railway 16th Bureau Group Fourth Engineering Co., Ltd.

Applicant after: China Railway Construction Engineering Bureau No.16 Group Corp., Ltd.

Address before: 101400 No. 2 Yingbin Middle Road, Huairou District, Beijing

Applicant before: China Railway 16th Bureau Group Fourth Engineering Co., Ltd.

Effective date of registration: 20170918

Address after: 101400 No. 2 Yingbin Middle Road, Huairou District, Beijing

Applicant after: China Railway 16th Bureau Group Fourth Engineering Co., Ltd.

Applicant after: China Railway Construction Engineering Bureau No.16 Group Corp., Ltd.

Address before: 101400 No. 2 Yingbin Middle Road, Huairou District, Beijing

Applicant before: China Railway 16th Bureau Group Fourth Engineering Co., Ltd.

TA01 Transfer of patent application right
CB03 Change of inventor or designer information

Inventor after: Ma Dong

Inventor after: Li Gengxu

Inventor after: Yang Yanling

Inventor after: Wang Duanfeng

Inventor after: Yan Su

Inventor after: Song Qingbo

Inventor after: Li Jian

Inventor after: Zhang Qi

Inventor after: Dan Hongtao

Inventor before: Li Gengxu

Inventor before: Yang Yanling

Inventor before: Wang Duanfeng

Inventor before: Yan Su

Inventor before: Song Qingbo

Inventor before: Li Jian

Inventor before: Zhang Qi

Inventor before: Dan Hongtao

Inventor after: Ma Dong

Inventor after: Li Gengxu

Inventor after: Yang Yanling

Inventor after: Wang Duanfeng

Inventor after: Yan Su

Inventor after: Song Qingbo

Inventor after: Li Jian

Inventor after: Zhang Qi

Inventor after: Dan Hongtao

Inventor before: Li Gengxu

Inventor before: Yang Yanling

Inventor before: Wang Duanfeng

Inventor before: Yan Su

Inventor before: Song Qingbo

Inventor before: Li Jian

Inventor before: Zhang Qi

Inventor before: Dan Hongtao

RJ01 Rejection of invention patent application after publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20170714