CN103352701B - Shield propelling constructing method of shield tunneling machine - Google Patents
Shield propelling constructing method of shield tunneling machine Download PDFInfo
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- CN103352701B CN103352701B CN201310285814.XA CN201310285814A CN103352701B CN 103352701 B CN103352701 B CN 103352701B CN 201310285814 A CN201310285814 A CN 201310285814A CN 103352701 B CN103352701 B CN 103352701B
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- prefabricated pipe
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Abstract
The invention relates to a shield propelling constructing method of a shield tunneling machine. The method includes a propelling mode adopted at the early stage of tunneling of the shield tunneling machine and a shield mode adopted at the later stage of the tunneling of the shield tunneling machine. On the basis that the shield propelling constructing method of the shield tunneling machine integrates the advantages of the shield constructing method, the propelling constructing method is integrated, overall constructing cost is greatly reduced, constructing efficiency is improved, constructing time is shortened, and field operation difficulty is reduced.
Description
Technical field
The present invention relates to a kind of construction of tunnel, especially a kind of shield machine push away shield construction.
Background technology
On domestic market, general shield machine construction engineering method generally adopts shield construction, such shield method (Shield Method) is the Fully-mechanized construction method of one in shallow mining method, it is advanced in ground by Shield-type machinery, prevent toward caving in tunnel by shield structure shell and section of jurisdiction supporting surrounding country rock, carry out soil excavation at excavation face front topping machanism simultaneously, transport outside hole by unearthed machinery, by jack in rear pressurization jacking, and assembled precast concrete section of jurisdiction, form a kind of mechanized construction method of tunnel structure, although do environmental protection like this, efficiently, safety, but cost intensive.
Summary of the invention
The technical problem to be solved in the present invention is: propose a kind of a kind of construction shield method and propelling method being combined enforcement.
The technical solution adopted in the present invention is: a kind of shield machine push away shield construction, be included in Promoting Form that preliminary stage that shield machine carries out tunneling adopts and the shield configuration formula that the later stage that shield machine carries out tunneling adopts.
Specifically, the Promoting Form that driving preliminary stage of the present invention adopts comprises the following steps:
1) in the tunnel needing driving, put into shield machine, shield machine is started working, and promotes shield machine shield machine is pushed ahead by hydraulic pushing device;
2), after hydraulic pushing device completes primary propelling action, initial position got back to by catch bar;
3) place prefabricated pipe at the end of shield machine, and pushed ahead by hydraulic pushing device promotion prefabricated pipe, complete after this time advancing action, catch bar gets back to initial position again;
4) the last period prefabricated pipe end place another section of prefabricated pipe, hydraulic pushing device repeat completing steps 3) promotion;
5) the like until N section prefabricated pipe has been placed.
Because the thrust of hydraulic pushing device own is limited, therefore propelling method advance has extreme limit of travel, and the advance distance that driving preliminary stage of the present invention adopts is 750 ~ 1100 meters.
The shield configuration formula that driving later stage of the present invention adopts is similar to the shield method of prior art, comprises the following steps:
1), after N section prefabricated pipe has been placed, front end hydraulic pushing device being mounted to first paragraph prefabricated pipe is used for promoting shield machine and continues to tunnel forward;
2) after shield machine is promoted a segment distance by hydraulic pushing device, steel pipe sheet is transported to this segment distance from the inside of N section prefabricated pipe and carries out assembled by conveying arrangement, becomes first segment steel pipe;
3) hydraulic pushing device is moved on the assembled steel pipe sheet completed of first segment, repeats step 2) pushing action, conveying arrangement continues transport steel pipe sheet, and to carry out the steel pipe of M joint assembled until constructed.
Hydraulic pushing device of the present invention is conventional hydraulic jack; In the described propulsion phase, the reaction of bearing wall of hydraulic pushing device is tunnel wall.
The present invention adopts the combination of two kinds of construction methods, adopts propelling method to advance by carrying out rapidly at preliminary stage; And shield method is adopted again after being advanced to extreme limit of travel.
The invention has the beneficial effects as follows: this construction method is being integrated with on the advantage of shield construction, integrated propelling construction method, greatly reduce the overall overall cost of construction, improve efficiency of construction, reduce engineering time and field operation difficulty.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is the Construction State schematic diagram that preliminary stage of the present invention advances;
Fig. 2 is the Construction State schematic diagram of later stage shield structure of the present invention;
In figure: 1, counter force wall; 2, hydraulic jack; 3, prefabricated pipe; 4, another jack; 5, shield machine; 6, straddle truck.
Detailed description of the invention
The present invention is further detailed explanation with preferred embodiment by reference to the accompanying drawings now.These accompanying drawings are the schematic diagram of simplification, only basic structure of the present invention are described in a schematic way, and therefore it only shows the formation relevant with the present invention.
As shown in Figure 1, the preliminary stage tunneled is carried out at shield machine, adopt Promoting Form, the front action edge of shield machine 5 coordinates oil cylinder 2 to realize by prefabricated pipe 3, at shield machine rear, counter force wall 1 is set, hydraulic jack 2 piston rod stretches out pushes ahead shield machine, when after the stroke arriving hydraulic jack 2, hydraulic jack 2 piston rod is retracted, by straddle truck 6, prefabricated ring 3 is installed between shield machine 5 and hydraulic jack 2 and fills up shield machine forward travel distance, hydraulic jack 2 piston rod stretches out promotion shield going-forward again, produces onward impulse, and so forth.When shield machine employing propelling method advances 800 meters (according to the difference of geological conditions, advance distance can change), when rear hydraulic jack 2 power output can not meet shield machine 5 onward impulse, be then converted to shield structure pattern and continue driving;
As shown in Figure 2: after shield machine adopts propelling method to proceed to extreme limit of travel, adopt shield construction, hydraulic jack 4 in shield machine, first prefabricated pipe 3 is promoted shield machine as knee wall to advance.The inner steel-pipe assembly sheet 2 of shield machine simultaneously, hydraulic jack 4 afterwards, continues using steel pipe sheet 2 as knee wall to advance.Propelling adds shield structure one set of construction method and completes.
The just the specific embodiment of the present invention described in above manual, various illustrating is not construed as limiting flesh and blood of the present invention, person of an ordinary skill in the technical field after having read manual can to before described detailed description of the invention make an amendment or be out of shape, and do not deviate from essence of an invention and scope.
Claims (4)
1. shield machine push away a shield construction, it is characterized in that: be included in Promoting Form that preliminary stage that shield machine carries out tunneling adopts and the shield configuration formula that the later stage that shield machine carries out tunneling adopts; The Promoting Form that described driving preliminary stage adopts comprises the following steps:
1) in the tunnel needing driving, put into shield machine, shield machine is started working, and promotes shield machine shield machine is pushed ahead by hydraulic pushing device;
2), after hydraulic pushing device completes primary propelling action, initial position got back to by catch bar;
3) place prefabricated pipe at the end of shield machine, and pushed ahead by hydraulic pushing device promotion prefabricated pipe, complete after this time advancing action, catch bar gets back to initial position again;
4) the last period prefabricated pipe end place another section of prefabricated pipe, hydraulic pushing device repeat completing steps 3) promotion;
5) the like until N section prefabricated pipe has been placed;
The shield configuration formula that described driving later stage adopts comprises the following steps:
A), after N section prefabricated pipe has been placed, front end hydraulic pushing device being mounted to first paragraph prefabricated pipe is used for promoting shield machine and continues to tunnel forward;
B) after shield machine is promoted a segment distance by hydraulic pushing device, steel pipe sheet is transported to this segment distance from the inside of N section prefabricated pipe and carries out assembled by conveying arrangement, becomes first segment steel pipe;
C) hydraulic pushing device is moved on the assembled steel pipe sheet completed of first segment, repeats step b) pushing action, conveying arrangement continues transport steel pipe sheet, and to carry out the steel pipe of M joint assembled until constructed.
2. a kind of shield machine as claimed in claim 1 push away shield construction, it is characterized in that: the advance distance that described driving preliminary stage adopts is 750 ~ 1100 meters.
3. a kind of shield machine as claimed in claim 1 push away shield construction, it is characterized in that: described hydraulic pushing device is hydraulic jack.
4. a kind of shield machine as claimed in claim 1 push away shield construction, it is characterized in that: in described Promoting Form, the reaction of bearing wall of hydraulic pushing device is tunnel wall.
Priority Applications (1)
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CN201310285814.XA CN103352701B (en) | 2013-07-08 | 2013-07-08 | Shield propelling constructing method of shield tunneling machine |
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CN201310285814.XA CN103352701B (en) | 2013-07-08 | 2013-07-08 | Shield propelling constructing method of shield tunneling machine |
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CN103352701A CN103352701A (en) | 2013-10-16 |
CN103352701B true CN103352701B (en) | 2015-02-25 |
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Families Citing this family (5)
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CN104695970A (en) * | 2014-08-04 | 2015-06-10 | 江苏锐成机械有限公司 | Mud concentration type shield tunneling construction method for shield tunneling machine |
CN106869165A (en) * | 2017-02-20 | 2017-06-20 | 曾庆如 | City integrated prefabricated piping lane open cut formula is from construction of prevention work method and self-propelled laydown machine |
CN107313781B (en) * | 2017-06-23 | 2023-07-14 | 山河智能装备股份有限公司 | One-step molding tunneling machine and tunneling method for shallow stratum pipe gallery |
CN107339504A (en) * | 2017-07-12 | 2017-11-10 | 郑州市市政工程总公司 | Interior spelling formula jacking pipe construction process |
CN111173523B (en) * | 2020-01-17 | 2021-06-22 | 上海力行工程技术发展有限公司 | Method for constructing underground box culvert by using open type shield tunneling machine |
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JP3471264B2 (en) * | 1999-09-29 | 2003-12-02 | 大成建設株式会社 | Tunnel construction method and shield machine used for it |
CN101294495A (en) * | 2008-06-25 | 2008-10-29 | 上海隧道工程股份有限公司 | Tunnel shield propulsion and inside double-layer road synchronous construction method |
CN102359379B (en) * | 2011-09-21 | 2013-10-23 | 上海隧道工程股份有限公司 | Tunnel construction method |
CN102767377B (en) * | 2012-08-13 | 2014-08-06 | 中铁一局集团有限公司 | Loess strata subway tunnel earth pressure balance shield construction method |
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