CN105257321A - Shield tunnel initial-stage construction duct piece pulling connection device and construction method - Google Patents
Shield tunnel initial-stage construction duct piece pulling connection device and construction method Download PDFInfo
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- CN105257321A CN105257321A CN201510627284.1A CN201510627284A CN105257321A CN 105257321 A CN105257321 A CN 105257321A CN 201510627284 A CN201510627284 A CN 201510627284A CN 105257321 A CN105257321 A CN 105257321A
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Abstract
The invention relates to a shield tunnel initial-stage construction duct piece pulling connection device and a construction method. The construction method comprises the following steps of fixing a front box body and a rear box body by using a duct piece central screw; fixing a manual hydraulic center hole jack onto an arc-shaped steel plate in the front box body; penetrating a fining twisted steel bar in the center of the manual hydraulic center hole jack and the center of the duct piece central screw, and fixing the fining twisted steel bar and an anchor plate; extending the rest portion of the fining twisted steel bar by using a fining twisted steel bar connector until the length of the fining twisted steel bar reaches to the length required for construction; effectively connecting the fining twisted steel bar with the rear box body; stretching the fining twisted steel bar through oil pressure of the manual hydraulic center hole jack under the condition that pulling connection load is required to be checked and computed to determine length extension before stretching; fixing by using an anchor plate and a fixing anchor after construction requirements are met; and dismounting the jack. The construction method not only is suitable for the conventional earth pressure balance shield tunneling machine with the diameter of 6760 mm, but also is suitable for a slurry balance shield tunneling machine with a larger diameter; after pulling connection is finished, the jack can be dismounted, and the problem of duct piece pulling connection during shield tunnel initial-stage construction is solved effectively.
Description
Technical field
The present invention relates to a kind of tunneling shield construction equipment and method, especially a kind of shield tunnel initial stage construction section of jurisdiction sockets device and construction method.
Background technology
Along with the development of shield method technology, the application of shield tunnel is more and more extensive, develops into taking and discharging tunnel, nuclear power tunnel and subway tunnel etc. from early stage highway tunnel, railway tunnel.Especially subway tunnel, is all century-old engineering, has can't permit mishap, and the normal operation of subway tunnel is related to the development process in whole city.
The principal element affecting subway tunnel use is the construction quality in tunnel itself.As attitude of shield machine during shield construction controls improper or measure error etc., cause tunnel axis and gap of the shield tail unreasonable, cause section of jurisdiction fragmentation situation, percolating water situation.Especially when shield tunnel is constructed in the early stage, because the frictional force between section of jurisdiction and the soil body is less, and simultaneous grouting slurry sedimentation is not also stablized, and it is uneven by system stiffness after shield launching, in order to prevent molded section of jurisdiction entirety from causing tunnel axis skew, section of jurisdiction fragmentation, percolating water, screw rod to be pulled off to active well displacement (the especially uneven dislocation in both sides, tunnel), entirety must be carried out in type section of jurisdiction and fixing.The experience of constructing according to Shanghai Underground and Shen Tong group build tube hub requirement, and needing provides this cover section of jurisdiction a kind of to socket device.
Summary of the invention
The problems such as tunnel axis skew, section of jurisdiction fragmentation, percolating water, screw rod are pulled off are caused to active well displacement in order to prevent molded section of jurisdiction entirety, the present invention will provide construction of a kind of shield tunnel initial stage section of jurisdiction to socket device and construction method, for solve shield tunnel construct in the early stage time, because the frictional force between section of jurisdiction and the soil body is less, and simultaneous grouting slurry sedimentation is not also stablized, and by technical problems such as system stiffness are uneven after shield launching.
For achieving the above object, technical scheme of the present invention is:
A kind of shield tunnel initial stage construction section of jurisdiction sockets device, tunnel axis is caused to offset for preventing molded section of jurisdiction entirety to active well displacement, section of jurisdiction is broken, percolating water, screw rod is pulled off, this device comprises steel casing, Manual hydraulic punching jack, anchor slab, mooring anchor, fining twisted steel, connector of finish rolling thread steel, section of jurisdiction center bolt, described steel casing is by front, rear portion casing is formed, before, rear portion casing is fixedly connected with by section of jurisdiction center bolt, described anterior casing is built with Manual hydraulic punching jack, before described, anchor slab is respectively equipped with in the casing of rear portion, described fining twisted steel is through actuated hydraulic punching jack and center bolt center, section of jurisdiction, and be fixedly connected with anchor slab.
Described fining twisted steel by length required for connector of finish rolling thread steel spreading to construction, and is effectively connected with rear portion casing.
Apply the construction method that shield tunnel initial stage construction section of jurisdiction sockets device, Specific construction step: 1) fix front and rear portions casing with section of jurisdiction center bolt; 2) Manual hydraulic punching jack is fixed on the curved plate in anterior casing; 3) fining twisted steel is passed Manual hydraulic punching jack and center bolt center, section of jurisdiction, and fix with anchor slab; 4) with connector of finish rolling thread steel, remaining fining twisted steel spreading is needed length to construction, and be effectively connected with rear portion casing; 5) manually formula hydraulic pressure punching jack oil pressure, stretches to fining twisted steel, needing to adjust socketing load, determining elongation before stretching; 6), after reaching construction requirement, fix with anchor slab, mooring anchor; 7) jack is removed.
The invention has the beneficial effects as follows:
Shield tunnel initial stage construction section of jurisdiction of the present invention sockets device and method and is not only used in conventional diameter 6760mm balancing earth-pressure shielding machine, and be applicable to the slurry balance shield machine of larger diameter, and after having socketed, jack can be removed, efficiently solve the shield tunnel initial stage construction time section of jurisdiction socket problem.
Accompanying drawing explanation
Fig. 1 is that shield tunnel initial stage of the present invention construction section of jurisdiction sockets apparatus structure floor map;
Fig. 2 is that anterior casing cuts open top view;
Fig. 3 is the sectional view of Fig. 1 middle front part casing along A-A;
Fig. 4 is the sectional view of Fig. 1 middle front part casing along B-B;
Fig. 5 is the sectional view of Fig. 1 postmedian casing along C-C;
Fig. 6 is the sectional view of Fig. 1 postmedian casing along D-D;
Fig. 7 is the sectional view of Fig. 1 postmedian casing along E-E;
Fig. 8 is that rear portion casing cuts open top view;
Fig. 9 is section of jurisdiction lifting center bolt schematic diagram.
Detailed description of the invention
Below in conjunction with specific embodiment, set forth the present invention further.
The present invention relates to construction of a kind of shield tunnel initial stage section of jurisdiction and socket device and construction method.When shield tunnel is constructed in the early stage, because the frictional force between section of jurisdiction and the soil body is less, and simultaneous grouting slurry sedimentation is not also stablized, and it is uneven by system stiffness after shield launching, in order to prevent molded section of jurisdiction entirety from causing tunnel axis skew, section of jurisdiction fragmentation, percolating water, screw rod to be pulled off to active well displacement, special this device of invention.
As shown in Figures 1 to 9, shield tunnel initial stage construction section of jurisdiction of the present invention sockets device, comprises following a few part: steel casing 1, Manual hydraulic punching jack 2, anchor slab 3, mooring anchor, fining twisted steel 4, connector of finish rolling thread steel 5, section of jurisdiction center bolt 6.
Steel casing 1 is made up of front and rear portions casing, front and rear portions casing is fixedly connected with by section of jurisdiction center bolt 6, anterior casing is built with Manual hydraulic punching jack 2, anchor slab 3 is respectively equipped with in front and rear portions casing, fining twisted steel 4 through actuated hydraulic punching jack 2 and section of jurisdiction center bolt 6 center, and is fixedly connected with anchor slab 3; Fining twisted steel 4 by length required for connector of finish rolling thread steel 5 spreading to construction, and is effectively connected with rear portion casing.
At constructing tunnel to 75 ring, when namely vehicle frame 25 ring is deviate from section of jurisdiction, start installation and socket device, at center, B1, B2 section of jurisdiction, hole for hoist height and position is respectively installed a set of.Specific construction step: (1) fixes two parts before and after steel casing 1(with section of jurisdiction center bolt); (2) jack is fixed on interior (first half) curved plate of steel casing 1; (3) fining twisted steel 4 of long an about 1m is passed Manual hydraulic punching jack 2 and section of jurisdiction center bolt 6 center, and fix with anchor slab 3.(4) with connector of finish rolling thread steel 5 remaining fining twisted steel 4 spreading to construction need length (25m), and with steel casing 1(latter half) be effectively connected; (5) manually formula hydraulic pressure punching jack 2 oil pressure, stretches to fining twisted steel 4, needing to adjust socketing load, determining elongation before stretching; (6), after reaching construction requirement, fix with anchor slab 3, mooring anchor; (7) jack is removed.Efficiently solve the shield tunnel initial stage construction time section of jurisdiction socket problem.
The present invention is applied in running tunnel total length and is about 1.73km, and tunnel outlet section 300 ring is straight line ring, section of jurisdiction internal diameter 5900mm, external diameter 6600mm, section of jurisdiction thickness 350mm.When uplink constructing tunnel to 75 ring, vehicle frame 25 ring is deviate from section of jurisdiction, and project management department sockets going out hole segment pipe sheet.Socket effectiveness comparison ideal, when the later stage advances, section of jurisdiction is overall basic not loosening to active well direction, and occurs without broken and percolating water.
Claims (3)
1. a shield tunnel initial stage construction section of jurisdiction sockets device, tunnel axis is caused to offset for preventing molded section of jurisdiction entirety to active well displacement, section of jurisdiction is broken, percolating water, screw rod is pulled off, this device comprises steel casing (1), Manual hydraulic punching jack (2), anchor slab (3), mooring anchor, fining twisted steel (4), connector of finish rolling thread steel (5), section of jurisdiction center bolt (6), it is characterized in that: described steel casing (1) is by front, rear portion casing is formed, before, rear portion casing is fixedly connected with by section of jurisdiction center bolt (6), described anterior casing is built with Manual hydraulic punching jack (2), before described, anchor slab (3) is respectively equipped with in the casing of rear portion, described fining twisted steel (4) is through actuated hydraulic punching jack (2) and section of jurisdiction center bolt (6) center, and be fixedly connected with anchor slab (3).
2. shield tunnel initial stage construction section of jurisdiction according to claim 1 sockets device, it is characterized in that: described fining twisted steel (4) by length required for connector of finish rolling thread steel (5) spreading to construction, and is effectively connected with rear portion casing.
3. application rights requires that the construction of the shield tunnel initial stage described in 2 section of jurisdiction sockets a construction method for device, it is characterized in that, Specific construction step: 1) with section of jurisdiction center bolt (6) fixing front and rear portions casing; 2) Manual hydraulic punching jack (2) is fixed on the curved plate in anterior casing; 3) a fining twisted steel (4) through Manual hydraulic punching jack (2) and section of jurisdiction center bolt (6) center, and with anchor slab (3) fix; 4) with connector of finish rolling thread steel (5), remaining fining twisted steel (4) spreading is needed length to construction, and be effectively connected with rear portion casing; 5) manually formula hydraulic pressure punching jack (2) oil pressure, stretches to fining twisted steel (4), needing to adjust socketing load, determining elongation before stretching; 6), after reaching construction requirement, fix with anchor slab (3), mooring anchor; 7) jack is removed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510627284.1A CN105257321B (en) | 2015-09-28 | 2015-09-28 | Shield tunnel construction at initial stage section of jurisdiction sockets device and construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510627284.1A CN105257321B (en) | 2015-09-28 | 2015-09-28 | Shield tunnel construction at initial stage section of jurisdiction sockets device and construction method |
Publications (2)
| Publication Number | Publication Date |
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| CN105257321A true CN105257321A (en) | 2016-01-20 |
| CN105257321B CN105257321B (en) | 2018-05-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510627284.1A Active CN105257321B (en) | 2015-09-28 | 2015-09-28 | Shield tunnel construction at initial stage section of jurisdiction sockets device and construction method |
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| CN104631851A (en) * | 2014-12-26 | 2015-05-20 | 柳州欧维姆机械股份有限公司 | Prestressed carbon fiber plate tensioning device and method for tensioning prestressed carbon fiber plate |
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2015
- 2015-09-28 CN CN201510627284.1A patent/CN105257321B/en active Active
Patent Citations (16)
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|---|---|---|---|---|
| CN2392836Y (en) * | 1999-11-12 | 2000-08-23 | 开封预应力技术研究所 | Pretensioned beam special clamp |
| JP2003268922A (en) * | 2002-03-13 | 2003-09-25 | Ps Mitsubishi Construction Co Ltd | Anchorage body of pc steel member |
| JP2004360399A (en) * | 2003-06-06 | 2004-12-24 | Sumiken Concrete Kogyo Kk | Concrete member |
| CN101021100A (en) * | 2006-11-10 | 2007-08-22 | 天津市耀新科技发展有限公司 | Fiber reinforced ground tackle for fiber reinforcing method |
| CN101338680A (en) * | 2008-08-08 | 2009-01-07 | 上海市隧道工程轨道交通设计研究院 | Construction method for pretightening digging tunnel segment |
| KR20100053847A (en) * | 2008-11-13 | 2010-05-24 | 한국건설기술연구원 | Structure reinforcing apparatus and method for srtucture reinforcement under concrete surface |
| CN101748898A (en) * | 2010-01-21 | 2010-06-23 | 武汉二航路桥特种工程有限责任公司 | Method for implementing the middle connection tensioning of cables and device thereof |
| CN101851985A (en) * | 2010-05-27 | 2010-10-06 | 卓清 | Articulated anchor and prestress tensioning method of high strength fibre composite sheet |
| CN103797216A (en) * | 2011-09-15 | 2014-05-14 | 韩国建设技术研究院 | Segment structure having vertical strands and horizontal shear keys and method for constructing shield tunnel using same |
| CN202323717U (en) * | 2011-10-28 | 2012-07-11 | 科达集团股份有限公司 | Cantilever type pre-stress hoop and special tensioning device thereof |
| CN202644401U (en) * | 2012-05-15 | 2013-01-02 | 长安大学 | Omnipotent prestress stretch-draw connecting structure for finish-rolling screw-thread steel |
| CN203065976U (en) * | 2013-02-20 | 2013-07-17 | 郭逢庆 | Active prestressed carbon fiber plate reinforcing system |
| CN103321430A (en) * | 2013-06-07 | 2013-09-25 | 华北水利水电大学 | Construction method of reinforcing large-span concrete structure with prestressed carbon fiber sheet |
| CN104264593A (en) * | 2014-09-05 | 2015-01-07 | 华侨大学 | Surface embedded bar reinforced prestress tension method and device |
| CN104406523A (en) * | 2014-09-29 | 2015-03-11 | 樊晓莉 | Shield tunnel segment shift detection method |
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| CN105257321B (en) | 2018-05-04 |
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