CN103032073A - 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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- CN103032073A CN103032073A CN2012105229291A CN201210522929A CN103032073A CN 103032073 A CN103032073 A CN 103032073A CN 2012105229291 A CN2012105229291 A CN 2012105229291A CN 201210522929 A CN201210522929 A CN 201210522929A CN 103032073 A CN103032073 A CN 103032073A
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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 the 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
Usually can carry out Freezing Method for Cross-passage Construction in shield tunnel project, so that in metro operation, when wherein running tunnel breaking out of fire or accident, the passenger can evacuate to another tunnel by set service channel immediately safely.Along with developing rapidly of China's metro construction, the shield method tunnel construction technology more and more obtains widely promotion and application with its exclusive intelligence, safety, the characteristic and advantage such as quick.It is exactly Freezing Method for Cross-passage Construction that yet shield tunnel restricts the logical critical process in hole most.At present domestic and international subway mud stone shield tunnel service channel is mainly due to the lithology good integrity, intensity is not high, fragility, the characteristics such as the excavation rear stability is good, because the blast working condition is that the supporting service channel that leaves surpasses more than 100 meters after wanting the shield structure, and the shield-tunneling construction vehicle is limited during explosion and to clearing up behind a large amount of blasting flyrocks of driving track, the severe patient blasting flyrock can smash wind, water pipe and the cable of shield driving.Therefore, conventional construction method is to adopt explosion to begin construction after shield driving is complete again, has a strong impact on station shield structure hoisting port plugging construction, greatly prolonged the construction period, and incur loss through delay traffic and recover, and blast working can to certain destruction of shield tunnel driving generation, cause infiltration.
In the time of often can appearing at the shield excavation machine maintenance in the tradition shield method tunnel construction, the idleness of equipment phenomenons such as construction battery truck, straddle truck, prior art can't make service channel and shield driving parallel construction.
Summary of the invention
The present invention for solve existing subway mud stone shield tunnel service channel adopt blasting exist the cycle long, incur loss through delay traffic recover, to shield driving produce disturb and can't 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 may further comprise the steps:
A, start and supportingly behind the tunneling shield replenish slip casting behind by 10 endless tube sheets before and after carrying out immediately service channel behind the service channel in advance; B, adopt the well cabinet frame that service channel opening part section of jurisdiction is supported, and set up service channel top bar operation platform and the operation platform of getting out of a predicament or an embarrassing situation at the well cabinet frame; C, later stage are started the tunneling shield main frame by behind the service channel, immediately in the tunnel that starts in advance along service channel aperture lines boring opening; D, supporting when the service channel after the later stage is started tunneling shield replenishes slip casting behind to 10 endless tube sheets before and after the service channel, adopts simultaneously the well cabinet frame that the opening section of jurisdiction is supported;
The construction of topping bar of step 2, service channel
A, draw section of jurisdiction except the shield tunnel service channel place cutting of starting in advance with jack, install simultaneously air compressor machine, and receive the service channel place with airduct; B, on the operation platform of topping bar of well cabinet frame, adopt the pneumatic pick excavation of topping bar, pour in the shield driving transport vehicle and together be transported to outside the hole when the shield driving transport vehicle excavates dregs with the trolley handle out the time in the hole; Set up grid, laying steel mesh reinforcement, construction locking angle anchor tube after C, excavation put in place, the shield driving transport vehicle begins to spray anchor after carrying spray anchor material when entering the hole; D, sprayed and proceeded excavation and supporting behind the anchor, simultaneously the later stage shield tunnel service channel place that starts hole along aperture lines, draw section of jurisdiction except cutting with jack, until the perforation of topping bar;
The construction of getting out of a predicament or an embarrassing situation of step 3, service channel
A, on the operation platform of getting out of a predicament or an embarrassing situation of well cabinet frame, adopt the pneumatic pick excavation of getting out of a predicament or an embarrassing situation, pour in the shield driving transport vehicle and together be transported to outside the hole when the shield driving transport vehicle excavates dregs with the trolley handle out the time in the hole; Set up grid, laying steel mesh reinforcement, construction locking angle anchor tube after B, excavation put in place, the shield driving transport vehicle begins to spray anchor after carrying spray anchor material when entering the hole; C, sprayed and proceeded excavation and supporting behind the anchor until the perforation of getting out of a predicament or an embarrassing situation;
A, the place that just leaks is carried out laying splash guard by design after the slip casting; Adopting roller type concrete tank transportation concrete to carry out underplate concrete behind B, the colligation baseplate reinforcing bar builds; C, underplate concrete begin 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 the service channel place at shield structure fault power time, shuttering supporting well adopts the roller type concrete tank to carry out template concreting afterwards.
Compared with prior art, the present invention has the following advantages:
1, lays two operation platforms on the employing falsework and install AT STATION air compressor machine high-pressure air hose access road service channel, realize that the service channel pneumatic pick abolishes and the shield driving parallel operations, solved the technical barrier that conventional method can't realize Freezing Method for Cross-passage Construction and shield driving;
2, adopt the pneumatic pick hand excavation according to the characteristics at the bottom of the mud stone intensity, the working procedure arrangement is flexible, guarantee slag tap vehicle coupling of a rate of advance and shield driving, reduce traditional blast working to the interference of shield driving, create the record that Freezing Method for Cross-passage Construction disturbs shield driving zero;
3, link to each other with battery truck by welding roll under traditional delivery pump, adopt rail concrete tank transportation concrete to solve tradition when utilizing the maintenance of shield structure shutdown maintenance and install AT STATION the technical barrier of the easy plugging of delivery pump, 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, taking full advantage of two operation platforms that falsework sets up and installing AT STATION air compressor machine provides the pneumatic pick excavation condition for service channel, reduces shield driving is disturbed; Employing is at welding roll under traditional delivery pump and use the rail concrete tank to carry out fast concreting when the shield driving shutdown maintenance maintains.Have that technique is simple, advanced technology, procedure arrangement is flexible, practical and shorten the advantage such as construction period, adopt this technology successfully to finish Changsha subway Line 1 10 marks three interval service channels, fill up the blank of China's city underground mudstone stratum service channel with the driving Construction Technology of Parallel, obtained good economic benefit and social benefit.This method is applicable to the shield tunnel of service channel.
Description of drawings
Fig. 1 is service channel of the present invention and shield driving parallel construction flat cutting schematic diagram;
Fig. 2 is the constructing tunnel vertical profile schematic diagram that starts in advance of the present invention;
Fig. 3 is the Freezing Method for Cross-passage Construction generalized section;
Among the figure: the 1-tunneling shield that starts in advance; The 2-service channel; 3-well cabinet frame; The 4-operation platform of topping bar; The 5-operation platform of getting out of a predicament or an embarrassing situation; The 6-later stage tunneling shield that starts; The 7-service channel is topped bar; The 8-airduct; The 9-service channel is got out of a predicament or an embarrassing situation; The 10-circulating water pipe; The 11-water swivel; The 12-air compressor machine.
The specific embodiment
A kind of city underground mudstone stratum service channel and shield driving parallel construction method as shown in Figure 1, 2, 3, may further comprise the steps:
A, start that tunneling shield 1 is rear supportingly to replenish slip casting behind by 10 endless tube sheets before and after carrying out immediately service channel behind the service channel 2 in advance; B, adopt 3 pairs of service channel opening parts of well cabinet frame section of jurisdiction to support, and set up service channel top bar operation platform 4 and the operation platform 5 of getting out of a predicament or an embarrassing situation at the well cabinet frame; C, later stage are started tunneling shield 6 main frames by behind the service channel, and drilled drawing-core machine service channel aperture lines boring opening is adopted on the edge in the tunnel that starts in advance immediately; D, supporting when the service channel after the later stage is started tunneling shield replenishes slip casting behind to 10 endless tube sheets before and after the service channel, adopts simultaneously the well cabinet frame that the opening section of jurisdiction is supported;
A, draw section of jurisdiction except the shield tunnel service channel place cutting of starting in advance with jack, install simultaneously air compressor machine 12, and receive the service channel place with airduct 8; B, on the operation platform of topping bar of well cabinet frame, adopt the pneumatic pick excavation of topping bar, simultaneously install construction water joint 11 at shield driving circulating water pipe 10, when the shield driving transport vehicle is poured in the shield driving transport vehicle and together is transported to outside the hole excavating dregs with trolley out the time in the hole; Set up grid, laying steel mesh reinforcement, construction locking angle anchor tube after C, excavation put in place, the shield driving transport vehicle begins to spray anchor after carrying spray anchor material when entering the hole; D, sprayed and proceeded excavation and supporting behind the anchor, adopted the drilled drawing-core machine to hole along aperture lines at the service channel place at the later stage shield tunnel that starts simultaneously, drawn section of jurisdiction except cutting with jack, until the perforation of topping bar;
A, on the operation platform of getting out of a predicament or an embarrassing situation of well cabinet frame, adopt the pneumatic pick excavation of getting out of a predicament or an embarrassing situation, pour in the shield driving transport vehicle and together be transported to outside the hole when the shield driving transport vehicle excavates dregs with the trolley handle out the time in the hole; Set up grid, laying steel mesh reinforcement, construction locking angle anchor tube after B, excavation put in place, the shield driving transport vehicle begins to spray anchor after carrying spray anchor material when entering the hole; C, sprayed and proceeded excavation and supporting behind the anchor until the perforation of getting out of a predicament or an embarrassing situation;
A, the place that just leaks is carried out laying splash guard by design after the slip casting; Adopting roller type concrete tank transportation concrete to carry out underplate concrete behind B, the colligation baseplate reinforcing bar builds; C, underplate concrete begin 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 the service channel place at shield structure fault power time, shuttering supporting well adopts the roller type concrete tank to carry out template concreting afterwards.
Case history
The method is used for Changsha subway Line 1 10 marks, and totally three shield structures are interval.The shield-tunneling construction place is CITIC Plaza; the CITIC Plaza station is B1; that shield tunnel is connected the station with viaduct; at shield launching end design tracklaying base; shield-tunneling construction Three regions length reaches 3300 meters; duration is tight; realized adopting in the shield driving pneumatic pick to carry out the service channel excavation by installing AT STATION the air compressor machine constructure scheme in the construction; utilize on the service channel temporary support and to lay two operation platforms and solve shield structure dregs and service channel dregs with the parallel transportation of car; under delivery pump, weld track roller and utilize the rail concrete tank when shield structure shutdown maintenance maintains, to carry out fast service channel concreting; solved traditional service channel concrete and installed AT STATION the technical barrier that delivery pump is built frequent plugging, realized that service channel disturbs Shield Construction Method Used zero.Create shield tunnel and tunneled the new record that service channel has also been constructed.Prove this advanced technology, construction arranges scientific and reasonable.
Be generalized to other bid sections of Line 1 by Changsha MTR at present, guaranteed that Freezing Method for Cross-passage Construction and running tunnel complete simultaneously, realized that the station resumes traffic in advance, shorten more than half a year construction period.Facts have proved, this technical scheme is advanced, and is practical, economic environmental protection, and the working procedure arrangement is flexible, has filled up the blank of China's city underground mudstone stratum service channel and shield driving Construction Technology of Parallel, and promotion prospect is good.
Claims (1)
1. a city underground mudstone stratum service channel and shield driving parallel construction method is characterized in that may further comprise the steps:
Step 1, service channel opening part temporary supporting are reinforced
A, in advance start supporting by carrying out immediately 10 endless tube sheets additional slip casting behind before and after the service channel behind the service channel (2) behind the tunneling shield (1); B, adopt well cabinet frame (3) that service channel opening part section of jurisdiction is supported, and set up service channel top bar operation platform (4) and the operation platform of getting out of a predicament or an embarrassing situation (5) at the well cabinet frame; C, later stage are started tunneling shield (6) main frame by behind the service channel, immediately in the tunnel that starts in advance along service channel aperture lines boring opening; D, supporting when the service channel after the later stage is started tunneling shield replenishes slip casting behind to 10 endless tube sheets before and after the service channel, adopts simultaneously the well cabinet frame that the opening section of jurisdiction is supported;
Step 2, service channel top bar (7) construction
A, draw section of jurisdiction except the shield tunnel service channel place cutting of starting in advance with jack, install simultaneously air compressor machine (12), and receive the service channel place with airduct (8); B, on the operation platform of topping bar of well cabinet frame, adopt the pneumatic pick excavation of topping bar, pour in the shield driving transport vehicle and together be transported to outside the hole when the shield driving transport vehicle excavates dregs with the trolley handle out the time in the hole; Set up grid, laying steel mesh reinforcement, construction locking angle anchor tube after C, excavation put in place, the shield driving transport vehicle begins to spray anchor after carrying spray anchor material when entering the hole; D, sprayed and proceeded excavation and supporting behind the anchor, simultaneously the later stage shield tunnel service channel place that starts hole along aperture lines, draw section of jurisdiction except cutting with jack, until the perforation of topping bar;
Step 3, service channel get out of a predicament or an embarrassing situation (9) construction
A, on the operation platform of getting out of a predicament or an embarrassing situation of well cabinet frame, adopt the pneumatic pick excavation of getting out of a predicament or an embarrassing situation, pour in the shield driving transport vehicle and together be transported to outside the hole when the shield driving transport vehicle excavates dregs with the trolley handle out the time in the hole; Set up grid, laying steel mesh reinforcement, construction locking angle anchor tube after B, excavation put in place, the shield driving transport vehicle begins to spray anchor after carrying spray anchor material when entering the hole; C, sprayed and proceeded excavation and supporting behind the anchor until the perforation of getting out of a predicament or an embarrassing situation;
Step 4, service channel two lining constructions
A, the place that just leaks is carried out laying splash guard by design after the slip casting; Adopting roller type concrete tank transportation concrete to carry out underplate concrete behind B, the colligation baseplate reinforcing bar builds; C, underplate concrete begin 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 the service channel place at shield structure fault power time, shuttering supporting well adopts the roller type concrete tank to carry out template concreting afterwards.
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Cited By (13)
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| CN104963693A (en) * | 2015-06-18 | 2015-10-07 | 河海大学 | Construction method for rectangular parallel top pipe connection channel |
| WO2018082714A1 (en) * | 2016-11-07 | 2018-05-11 | 中铁工程装备集团有限公司 | Shield tunneling machine for tunnel connecting passageway and connecting passageway tunneling method thereof |
| CN108612533A (en) * | 2018-05-04 | 2018-10-02 | 淮南矿业(集团)有限责任公司 | Dial the construction method in gate segment tunnel |
| CN109057817A (en) * | 2018-08-02 | 2018-12-21 | 中铁隆工程集团有限公司 | Suitable for folding the c-type service channel structure and construction method that fall Subway Tunnel up and down |
| 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 |
| CN109736827A (en) * | 2019-01-11 | 2019-05-10 | 中南大学 | The method that city underground ground consisting of hard rock service channel high pressure gas expansion fracturing is excavated |
| CN109812272A (en) * | 2019-01-30 | 2019-05-28 | 浙江汉领建设有限公司 | The construction method of shield piping lane |
| 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 |
| CN111271076A (en) * | 2020-04-10 | 2020-06-12 | 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 |
| CN111946351A (en) * | 2020-07-13 | 2020-11-17 | 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 |
| CN112066829A (en) * | 2020-08-14 | 2020-12-11 | 首钢集团有限公司 | Air shaft communication channel communicating method |
| CN112983460A (en) * | 2020-04-27 | 2021-06-18 | 中铁十四局集团有限公司 | Subway station and section structure layout and mechanical rapid construction method thereof |
| CN113431587A (en) * | 2021-07-22 | 2021-09-24 | 北京市政建设集团有限责任公司 | Construction method of shield tunnel connection channel |
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| CN104963693A (en) * | 2015-06-18 | 2015-10-07 | 河海大学 | Construction method for rectangular parallel top pipe connection channel |
| WO2018082714A1 (en) * | 2016-11-07 | 2018-05-11 | 中铁工程装备集团有限公司 | Shield tunneling machine for tunnel connecting passageway and connecting passageway tunneling method thereof |
| CN108612533A (en) * | 2018-05-04 | 2018-10-02 | 淮南矿业(集团)有限责任公司 | Dial the construction method in gate segment tunnel |
| CN109057817A (en) * | 2018-08-02 | 2018-12-21 | 中铁隆工程集团有限公司 | Suitable for folding the c-type service channel structure and construction method that fall Subway Tunnel up and down |
| 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 |
| 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 |
| CN109736827A (en) * | 2019-01-11 | 2019-05-10 | 中南大学 | The method that city underground ground consisting of hard rock service channel high pressure gas expansion fracturing is excavated |
| CN109812272A (en) * | 2019-01-30 | 2019-05-28 | 浙江汉领建设有限公司 | The construction method of shield piping lane |
| 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 |
| CN111271076A (en) * | 2020-04-10 | 2020-06-12 | 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 |
| CN112983460A (en) * | 2020-04-27 | 2021-06-18 | 中铁十四局集团有限公司 | Subway station and section structure layout and mechanical rapid construction method thereof |
| 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 |
| CN111946351A (en) * | 2020-07-13 | 2020-11-17 | 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 |
| CN112066829A (en) * | 2020-08-14 | 2020-12-11 | 首钢集团有限公司 | Air shaft communication channel communicating method |
| CN112066829B (en) * | 2020-08-14 | 2022-03-18 | 首钢集团有限公司 | Air shaft communication channel communicating method |
| CN113431587A (en) * | 2021-07-22 | 2021-09-24 | 北京市政建设集团有限责任公司 | Construction method of shield tunnel connection channel |
| 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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