CN103032073B - Urban subway mudstone stratum connected aisle and shield tunneling parallel construction method - Google Patents
Urban subway mudstone stratum connected aisle and shield tunneling parallel construction method Download PDFInfo
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- CN103032073B CN103032073B CN201210522929.1A CN201210522929A CN103032073B CN 103032073 B CN103032073 B CN 103032073B CN 201210522929 A CN201210522929 A CN 201210522929A CN 103032073 B CN103032073 B CN 103032073B
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Abstract
The invention relates to the field of tunnel shield construction, in particular to an urban subway mudstone stratum connected aisle and shield tunneling parallel construction method, and solves the problems that due to the adoption of a blasting method in the prior art, the period is long, traffic recovery is delayed, interference to shield tunneling is generated and the blasting method and the shield tunneling cannot be constructed in parallel. The urban subway mudstone stratum connected aisle and shield tunneling parallel construction method comprises the following steps of: carrying out temporary supporting and reinforcement at an opening of a connected aisle; constructing upper steps of the connected aisle; constructing lower steps of the connected aisle; and carrying out second liner construction. A construction platform which is temporarily erected is sufficiently utilized and an air compressor is arranged in a station to provide the air pick excavating condition for the connected aisle and reduce interference to shield tunneling; a roller is welded under a conventional conveying pump and a rail concrete tank wagon is applied to rapidly carry out concreting when shield tunneling is shut down to carry out repair and maintenance. The urban subway mudstone stratum connected aisle and shield tunneling parallel construction method has the advantages of simple process, advanced technology, flexible process arrangement, strong practicality, shortening of the construction period and the like, a gap of an urban subway mudstone stratum connected aisle and shield tunneling parallel construction technology in China is filled and excellent economic benefits and social benefits can be obtained.
Description
Technical field
The present invention relates to tunneling shield technical field of construction, be specially a kind of city underground mudstone stratum service channel and shield driving parallel construction method.
Background technology
In shield tunnel project, usually can carry out Freezing Method for Cross-passage Construction, so that in metro operation, when wherein a running tunnel breaking out of fire or accident, passenger can be evacuated to another tunnel by set service channel immediately safely.Along with developing rapidly of China's metro construction, shield method tunnel construction technology more and more obtains promotion and application widely with its exclusive intelligence, safety, the characteristic and advantage such as quick.But the critical process that shield tunnel restricts hole most logical is exactly Freezing Method for Cross-passage Construction.Domestic and international subway mud stone shield tunnel service channel is mainly due to lithology good integrity at present, intensity is not high, fragility, the features such as excavation rear stability is good, due to blast working condition be want shield structure after the supporting service channel that leaves more than more than 100 meters, and during explosion, shield-tunneling construction vehicle is limited and clear up after driving track a large amount of blasting flyrock, severe patient blasting flyrock can smash the wind of shield driving, water pipe and cable.Therefore, conventional construction method is after shield driving is complete, adopt explosion to start construction again, has a strong impact on station shield structure hoisting port plugging construction, substantially prolongs the construction period, and incur loss through delay traffic to recover, and blast working can produce certain destruction to shield tunnel driving, causes infiltration.
When often appearing in shield excavation machine maintenance in tradition shield method tunnel construction, phenomenon such as the idleness of equipment such as construction battery truck, straddle truck etc., prior art cannot make service channel and shield driving parallel construction.
Summary of the invention
The present invention in order to solve existing subway mud stone shield tunnel service channel adopt blasting exist the cycle long, incur loss through delay traffic recover, shield driving is produced interference and cannot with the problem of shield driving parallel construction, a kind of city underground mudstone stratum service channel and shield driving parallel construction method are provided.
The present invention adopts following technical scheme to realize: a kind of city underground mudstone stratum service channel and shield driving parallel construction method, comprise the following steps:
Step one, service channel opening part temporary support are reinforced
A, start and supportingly after tunneling shield supplement slip castings behind by carrying out 10 endless tube sheets before and after service channel after service channel immediately in advance; B, adopt well cabinet frame to support service channel opening part section of jurisdiction, and on well cabinet frame, set up service channel to top bar operation platform and operation platform of getting out of a predicament or an embarrassing situation; C, later stage start tunneling shield main frame by after service channel, immediately start in advance in tunnel along service channel aperture lines boring opening; D, when after the later stage starts tunneling shield supporting by service channel time, supplementary slip casting is carried out behind to 10 endless tube sheets before and after service channel, adopts well cabinet frame to support opening section of jurisdiction simultaneously;
Step 2, service channel are topped bar construction
A, draw the section of jurisdiction except shield tunnel service channel place cutting of starting in advance with jack, install air compressor machine simultaneously, and receive service channel place with airduct; B, top bar on operation platform at well cabinet frame, adopt pneumatic pick to carry out excavation of topping bar, when shield driving transport vehicle from hole out time pour in shield driving transport vehicle with trolley be together transported to outside hole excavating dregs; C, excavation set up grid, laying steel mesh reinforcement, construction locking angle anchor tube after putting in place, start to carry out spray anchor after carrying spray anchor material when shield driving transport vehicle enters hole; D, sprayed anchor after proceed excavation and supporting, simultaneously the later stage shield tunnel service channel place that starts hole along aperture lines, draw the section of jurisdiction except cutting, until it is through to top bar with jack;
Step 3, service channel are got out of a predicament or an embarrassing situation construction
A, get out of a predicament or an embarrassing situation on operation platform at well cabinet frame, adopt pneumatic pick to carry out excavation of getting out of a predicament or an embarrassing situation, when shield driving transport vehicle from hole out time pour in shield driving transport vehicle with trolley be together transported to outside hole excavating dregs; B, excavation set up grid, laying steel mesh reinforcement, construction locking angle anchor tube after putting in place, start to carry out spray anchor after carrying spray anchor material when shield driving transport vehicle enters hole; C, sprayed anchor after proceed excavation and supporting until get out of a predicament or an embarrassing situation through;
The construction of step 4, service channel two lining
A, carry out laying splash guard to just leaking after slip casting is carried out in place by design; Adopt roller type concrete tank transport concrete to carry out underplate concrete after B, colligation baseplate reinforcing bar to build; C, underplate concrete start colligation wall and arch reinforcing bar after reaching intensity, then set up template; D, on delivery pump welding roll, utilize battery truck to be transported to service channel place at shield structure fault power time, shuttering supporting well adopts roller type concrete tank to carry out template concreting afterwards.
Compared with prior art, the present invention has the following advantages:
1, two operation platforms laid by employing falsework and install air compressor machine AT STATION high-pressure air hose access road service channel, realize service channel pneumatic pick to abolish and shield driving parallel operations, solve the technical barrier that conventional method cannot realize Freezing Method for Cross-passage Construction and shield driving;
2, pneumatic pick hand excavation is adopted according to the feature at the bottom of mud stone intensity, working procedure arrangement is flexible, guarantee that a rate of advance and shield driving are slagged tap vehicle match, reduce the interference of conventional blast construction to shield driving, create the record that Freezing Method for Cross-passage Construction disturbs shield driving zero;
3, be connected with battery truck by welding roll under traditional delivery pump, adopt rail concrete tank transport concrete to solve the technical barrier that tradition installs the easy plugging of delivery pump AT STATION when utilizing shield structure shutdown maintenance to maintain, realize service channel fast pouring, easy construction, quality controllable;
In a word, adopt city underground mudstone stratum service channel of the present invention and shield driving parallel construction method, make full use of two operation platforms that falsework sets up and install air compressor machine AT STATION and provide pneumatic pick excavation condition for service channel, reduce and shield driving is disturbed; Welding roll and utilization rail concrete tank under traditional delivery pump is adopted to carry out concreting fast when shield driving shutdown maintenance maintains.Have that technique is simple, advanced technology, procedure arrangement are flexible, practical and shorten the advantages such as construction period, adopt this technology to have successfully completed Changsha subway Line 1 10 and mark three interval service channels, fill up China's city underground mudstone stratum service channel and the blank of driving Construction Technology of Parallel, achieve good economic benefit and social benefit.This method is applicable to the shield tunnel of service channel.
Accompanying drawing explanation
Fig. 1 is service channel of the present invention and shield driving parallel construction flat cutting schematic diagram;
Fig. 2 is the constructing tunnel elevational schematic that starts in advance of the present invention;
Fig. 3 is Freezing Method for Cross-passage Construction generalized section;
In figure: 1-starts tunneling shield in advance; 2-service channel; 3-well cabinet frame; 4-tops bar operation platform; 5-gets out of a predicament or an embarrassing situation operation platform; The 6-later stage starts tunneling shield; 7-service channel is topped bar; 8-airduct; 9-service channel is got out of a predicament or an embarrassing situation; 10-circulating water pipe; 11-water swivel; 12-air compressor machine.
Detailed description of the invention
A kind of city underground mudstone stratum service channel and shield driving parallel construction method, as shown in Figure 1, 2, 3, comprise the following steps:
Step one, service channel opening part temporary support are reinforced
A, start and supportingly after tunneling shield 1 supplement slip castings behind by carrying out 10 endless tube sheets before and after service channel after service channel 2 immediately in advance; B, adopt well cabinet frame 3 pairs of service channel opening part sections of jurisdiction to support, and on well cabinet frame, set up service channel to top bar operation platform 4 and operation platform 5 of getting out of a predicament or an embarrassing situation; C, later stage start tunneling shield 6 main frame by after service channel, adopt drilled drawing-core machine service channel aperture lines boring opening immediately on edge in tunnel of starting in advance; D, when after the later stage starts tunneling shield supporting by service channel time, supplementary slip casting is carried out behind to 10 endless tube sheets before and after service channel, adopts well cabinet frame to support opening section of jurisdiction simultaneously;
Step 2, service channel are topped bar 7 constructions
A, draw the section of jurisdiction except shield tunnel service channel place cutting of starting in advance with jack, install air compressor machine 12 simultaneously, and receive service channel place with airduct 8; B, top bar on operation platform at well cabinet frame, pneumatic pick is adopted to carry out excavation of topping bar, simultaneously on shield driving circulating water pipe 10, install construction water joint 11, when shield driving transport vehicle from hole out time with trolley excavation dregs to be poured in shield driving transport vehicle and is together transported to outside hole; C, excavation set up grid, laying steel mesh reinforcement, construction locking angle anchor tube after putting in place, start to carry out spray anchor after carrying spray anchor material when shield driving transport vehicle enters hole; D, sprayed anchor after proceed excavation and supporting, simultaneously adopt drilled drawing-core machine to hole along aperture lines at service channel place at the later stage shield tunnel that starts, draw the section of jurisdiction except cutting, until it is through to top bar with jack;
Step 3, service channel are got out of a predicament or an embarrassing situation 9 constructions
A, get out of a predicament or an embarrassing situation on operation platform at well cabinet frame, adopt pneumatic pick to carry out excavation of getting out of a predicament or an embarrassing situation, when shield driving transport vehicle from hole out time pour in shield driving transport vehicle with trolley be together transported to outside hole excavating dregs; B, excavation set up grid, laying steel mesh reinforcement, construction locking angle anchor tube after putting in place, start to carry out spray anchor after carrying spray anchor material when shield driving transport vehicle enters hole; C, sprayed anchor after proceed excavation and supporting until get out of a predicament or an embarrassing situation through;
The construction of step 4, service channel two lining
A, carry out laying splash guard to just leaking after slip casting is carried out in place by design; Adopt roller type concrete tank transport concrete to carry out underplate concrete after B, colligation baseplate reinforcing bar to build; C, underplate concrete start colligation wall and arch reinforcing bar after reaching intensity, then set up template; D, on delivery pump welding roll, utilize battery truck to be transported to service channel place at shield structure fault power time, shuttering supporting well adopts roller type concrete tank to carry out template concreting afterwards.
Case history
The method is used for Changsha subway Line 1 10 and marks totally three shield structures intervals.Shield-tunneling construction place is CITIC Plaza, CITIC Plaza station is B1, that shield tunnel is connected station with viaduct, at shield launching end design tracklaying base, shield-tunneling construction three siding-to-siding block lengths reach 3300 meters, duration is tight, achieve in shield driving adopt pneumatic pick to carry out service channel excavation by installing air compressor machine constructure scheme AT STATION in construction, utilize on service channel temporary support and lay two operation platforms solution shield structure dregs with service channel dregs with the parallel transport of car, under delivery pump, weld track roller and utilize rail concrete tank to carry out service channel concreting fast when shield structure shutdown maintenance maintains, solve traditional service channel concrete and install the technical barrier that frequent plugging built by delivery pump AT STATION, achieve service channel to Shield Construction Method Used zero interference.Create shield tunnel and tunnel the new record that service channel also constructed.Prove this advanced technology, construction arranges scientific and reasonable.
Be generalized to other bid sections of Line 1 by Changsha MTR at present, ensure that Freezing Method for Cross-passage Construction and running tunnel complete simultaneously, achieve station and resume traffic in advance, shorten half a year construction period more than.Facts have proved, this technical scheme is advanced, practical, economic environmental protection, and working procedure arrangement is flexible, and filled up the blank of China's city underground mudstone stratum service channel and shield driving Construction Technology of Parallel, promotion prospect is good.
Claims (1)
1. city underground mudstone stratum service channel and a shield driving parallel construction method, is characterized in that comprising the following steps:
Step one, service channel opening part temporary support are reinforced
A, start that tunneling shield (1) is supporting afterwards supplements slip castings behind by carrying out 10 endless tube sheets before and after service channel after service channel (2) immediately in advance; B, adopt well cabinet frame (3) to support service channel opening part section of jurisdiction, and on well cabinet frame, set up service channel to top bar operation platform (4) and operation platform of getting out of a predicament or an embarrassing situation (5); C, later stage start tunneling shield (6) main frame by after service channel, immediately starting in advance in shield tunnel along service channel aperture lines boring opening; D, when after the later stage starts tunneling shield supporting by service channel time, supplementary slip casting is carried out behind to 10 endless tube sheets before and after service channel, adopts well cabinet frame to support opening section of jurisdiction simultaneously;
Step 2, service channel top bar (7) construction
A, draw the section of jurisdiction except shield tunnel service channel place cutting of starting in advance with jack, install air compressor machine (12) simultaneously, and receive service channel place with airduct (8); B, top bar on operation platform at well cabinet frame, adopt pneumatic pick to carry out excavation of topping bar, when shield driving transport vehicle from hole out time pour in shield driving transport vehicle with trolley be together transported to outside hole excavating dregs; C, excavation set up grid, laying steel mesh reinforcement, construction locking angle anchor tube after putting in place, start to carry out spray anchor after carrying spray anchor material when shield driving transport vehicle enters hole; D, sprayed anchor after proceed excavation and supporting, simultaneously the later stage shield tunnel service channel place that starts hole along aperture lines, draw the section of jurisdiction except cutting, until it is through to top bar with jack;
Step 3, service channel get out of a predicament or an embarrassing situation (9) construction
A, get out of a predicament or an embarrassing situation on operation platform at well cabinet frame, adopt pneumatic pick to carry out excavation of getting out of a predicament or an embarrassing situation, when shield driving transport vehicle from hole out time pour in shield driving transport vehicle with trolley be together transported to outside hole excavating dregs; B, excavation set up grid, laying steel mesh reinforcement, construction locking angle anchor tube after putting in place, start to carry out spray anchor after carrying spray anchor material when shield driving transport vehicle enters hole; C, sprayed anchor after proceed excavation and supporting until get out of a predicament or an embarrassing situation through;
The construction of step 4, service channel two lining
A, carry out laying splash guard to just leaking after slip casting is carried out in place by design; Adopt roller type concrete tank transport concrete to carry out underplate concrete after B, colligation baseplate reinforcing bar to build; C, underplate concrete start colligation wall and arch reinforcing bar after reaching intensity, then set up template; D, on delivery pump welding roll, utilize battery truck to be transported to service channel place at shield structure fault power time, shuttering supporting well adopts roller type concrete tank to carry out template concreting afterwards.
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| CN201210522929.1A CN103032073B (en) | 2012-12-08 | 2012-12-08 | Urban subway mudstone stratum connected aisle and shield tunneling parallel construction method |
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| CN106437735B (en) * | 2016-11-07 | 2018-06-01 | 中铁工程装备集团有限公司 | Tunnel connection channel shield machine and its service channel driving method |
| CN108612533B (en) * | 2018-05-04 | 2020-06-26 | 淮南矿业(集团)有限责任公司 | Construction method of gate-shifting section roadway |
| CN109057817B (en) * | 2018-08-02 | 2020-02-07 | 中铁隆工程集团有限公司 | C-shaped connection channel structure suitable for vertically-stacked floor iron sections and construction method |
| CN109630193A (en) * | 2019-01-11 | 2019-04-16 | 中建八局轨道交通建设有限公司 | Subway Tunnel service channel excavates the administering method for water burst phenomenon occur |
| CN109736827B (en) * | 2019-01-11 | 2020-01-31 | 中南大学 | Method for excavating urban subway hard rock stratum communication channel by high-pressure gas expansion fracturing |
| CN109812272B (en) * | 2019-01-30 | 2020-12-11 | 浙江汉领建设有限公司 | Construction method of shield pipe gallery |
| CN110130933A (en) * | 2019-05-07 | 2019-08-16 | 中铁二十四局集团安徽工程有限公司 | Shield tunnel section service channel two serves as a contrast concrete casting device and method |
| CN111271076B (en) * | 2020-04-10 | 2022-05-27 | 中建八局轨道交通建设有限公司 | Tunnel portal breaking construction method for underground excavation method transverse channel |
| CN112983460B (en) * | 2020-04-27 | 2022-09-27 | 中铁十四局集团有限公司 | Subway station and section structural layout and mechanical rapid construction method thereof |
| CN111946351B (en) * | 2020-07-13 | 2022-06-14 | 济南轨道交通集团有限公司 | Rapid excavation method for contact channel of hard rock stratum of rail transit |
| CN112066829B (en) * | 2020-08-14 | 2022-03-18 | 首钢集团有限公司 | Air shaft communication channel communicating method |
| CN113431587B (en) * | 2021-07-22 | 2023-07-25 | 北京市政建设集团有限责任公司 | Construction method of shield tunnel connecting channel |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP4803428B2 (en) * | 2006-02-15 | 2011-10-26 | 清水建設株式会社 | Tunnel construction method |
| CN100501124C (en) * | 2006-09-04 | 2009-06-17 | 上海隧道工程股份有限公司 | Construction method for tunnel contact passage in shield section of underground railway |
| CN102345461B (en) * | 2011-07-23 | 2013-07-03 | 中铁十二局集团有限公司 | Subsequent project and shield driving parallel construction method for long-distance railway tunnel |
| CN102287198B (en) * | 2011-07-23 | 2013-07-03 | 中铁十二局集团有限公司 | Construction method for river-crossing shield tunnel crushed stratum communication channel |
| CN102619522A (en) * | 2012-03-20 | 2012-08-01 | 天津城建隧道股份有限公司 | Construction method for subway contact passage |
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