CN103161471A - Construction method in which large-diameter shield advances across air shaft in long distance - Google Patents
Construction method in which large-diameter shield advances across air shaft in long distance Download PDFInfo
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- CN103161471A CN103161471A CN2011104248360A CN201110424836A CN103161471A CN 103161471 A CN103161471 A CN 103161471A CN 2011104248360 A CN2011104248360 A CN 2011104248360A CN 201110424836 A CN201110424836 A CN 201110424836A CN 103161471 A CN103161471 A CN 103161471A
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- shield
- air shaft
- shield structure
- long distance
- ventilating shaft
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Abstract
The invention relates to a construction method in which a large-diameter shield advances across an air shaft in long distance. The pushing forward construction method of the large-diameter shield across the air shaft in a long distance comprises the following steps of determining the axis of the shield across the air shaft, determining the base form of precast concrete beams and steel box beams when a shield tunneling machine penetrates through the air shaft, and determining the piecing form and the supporting mode of air shaft negative ring pipe pieces. With the pushing forward construction method, maintenance time can be saved, the shield can be reused, construction period is greatly shortened, and materials are greatly saved. When the large-diameter shield penetrates through the air shaft in a long distance, side pressure on the shield does not exist, and piecing of the negative ring pipe pieces is extremely prone to deforming transversely. Meanwhile, when the shield is pushed forward in the air shaft, front pressure on the shield does not exist, and the negative ring pipe pieces are prone to tightening longitudinally (namely among rings). According to the construction method in which the large-diameter shield advances across the air shaft in long distance, the deformation problem of pipe pieces is well solved.
Description
Technical field
The present invention relates to a kind of shield structure length apart from the propelling construction method, especially a kind of for the long job practices apart from passing through ventilating shaft of large-diameter shield.
Background technology
At present, further exploitation along with urban underground space, the urban railway transit train speed of service improves constantly, tunnel clearance is required also to increase, large-diameter shield will get more and more to be applied in track traffic and use, it is inevitable that large-diameter shield passes through the ventilating shaft construction, and the large shield structure ventilating shaft construction technology how safe traverse distance is grown is to need the problem of solution badly.
Tight phenomenon of municipal engineering ubiquity duration, adopt precast concrete+steel case beam pedestal form not only can solve curing time, and can also reuse at present, greatly saves duration and material.
Large-diameter shield is when long distance is passed through in the ventilating shaft, and the shield structure is all without side pressure, and negative endless tube sheet assembly unit very easily produces lateral deformation, and when the shield structure advances in ventilating shaft simultaneously, also without positive pressure, negative endless tube sheet vertically (i.e. ring and encircle between) tightens up also being difficult for.Adopt the present invention can solve well the segment deformation problem.
Summary of the invention
The present invention will provide the long distance of a kind of large-diameter shield to pass through ventilating shaft propelling construction method, is used for solving the problem on deformation that advances the section of jurisdiction to produce in ventilating shaft.
For achieving the above object, the job practices that the present invention adopts is: the long distance of a kind of large-diameter shield is passed through ventilating shaft propelling construction method, and its Specific construction step is as follows:
Shield structure axis when 1) determining to pass through ventilating shaft
During according to shield, for going up a slope, appearing is the situation of descending:
Plane: take actual measurement into and out of the hole portal line of centres as shield structure pedestal axis in place
Elevation: when the shield structure passes through ventilating shaft, shield structure vertical axis is taked and designs axis phase segmentation method, namely enters the center, hole by the design centre, and the center of appearing is than the low 4cm of design;
Precast concrete beam+steel case beam pedestal form when 2) determining that shield machine passes through
Adopt 20 Pin concrete beam as pedestal when the shield structure passes through, at two steel case beams of concrete beam both sides layout, lay the Qu80 crane runway on the steel case;
3) determine the negative endless tube sheet assembly form of ventilating shaft and supporting way
Place respectively two shaped steel in ventilating shaft inner tunnel center along axis direction both sides before the shield structure passes through, and every propelling 75cm is welded and fixed with channel-section steel in progradation.
The invention has the beneficial effects as follows:
Job practices of the present invention can be saved curing time, and can also reuse, and greatly saves duration and material.Large-diameter shield is when long distance is passed through in the ventilating shaft, and the shield structure is all without side pressure, and negative endless tube sheet assembly unit very easily produces lateral deformation, and when the shield structure advances in ventilating shaft simultaneously, also without positive pressure, negative endless tube sheet vertically (i.e. ring and encircle between) tightens up also being difficult for.Adopt the present invention can solve well the segment deformation problem.
Description of drawings
Fig. 1 is that the shield structure that the present invention will construct passes through the ventilating shaft longitudinal plan;
Fig. 2 is that the shield structure that the present invention will construct passes through the ventilating shaft drawing in side sectional elevation.
The specific embodiment
Below in conjunction with specific embodiment, further set forth the present invention.Should be understood that these embodiment only to be used for explanation the present invention and be not used in and limit the scope of the invention.Should be understood that in addition those skilled in the art can make various changes or modifications the present invention after the content of having read the present invention's instruction, these equivalent form of values fall within the application's appended claims limited range equally.
The construction technology that the present invention passes through in No. 16 lines of Shanghai Rail Transit 5 long distances of mark Project Shield shield structure, the tunnel that construct (Fig. 1 is shown in 2), the concrete step of executing is:
Shield structure axis when 1) determining to pass through ventilating shaft
When the shield structure passes through ventilating shaft, turnover hole section design plane axis is straight line, and be vertically the convex curve of R=10000m, and the curve peak is positioned at ventilating shaft, and when namely entering the hole, the shield structure is upward slope, and appearing is descending.
Plane: take actual measurement into and out of the hole portal line of centres as shield structure pedestal axis in place
Elevation: when the shield structure passes through ventilating shaft, shield structure vertical axis is taked and designs axis phase segmentation method, namely enters the center, hole by the design centre, and the center of appearing is than the low 4cm of design.
Precast concrete beam+steel case beam pedestal form when 2) determining that shield machine passes through
Adopt 20 Pin concrete beam as pedestal when the shield structure passes through, at two steel case beams of concrete beam both sides layout, lay the Qu80 crane runway on the steel case.
3) the negative endless tube sheet assembly form of ventilating shaft and supporting way
Place respectively two shaped steel in ventilating shaft inner tunnel center along axis direction both sides before the shield structure passes through, and every propelling 75cm is welded and fixed with channel-section steel in progradation.
Claims (1)
1. the long distance of large-diameter shield is passed through ventilating shaft propelling construction method, it is characterized in that, the Specific construction step is as follows:
Shield structure axis when 1) determining to pass through ventilating shaft
During according to shield, for going up a slope, appearing is the situation of descending:
Plane: take actual measurement into and out of the hole portal line of centres as shield structure pedestal axis in place
Elevation: when the shield structure passes through ventilating shaft, shield structure vertical axis is taked and designs axis phase segmentation method, namely enters the center, hole by the design centre, and the center of appearing is than the low 4cm of design;
Precast concrete beam+steel case beam pedestal form when 2) determining that shield machine passes through
Adopt 20 Pin concrete beam as pedestal when the shield structure passes through, at two steel case beams of concrete beam both sides layout, lay the Qu80 crane runway on the steel case;
3) determine the negative endless tube sheet assembly form of ventilating shaft and supporting way
Place respectively two shaped steel in ventilating shaft inner tunnel center along axis direction both sides before the shield structure passes through, and every propelling 75cm is welded and fixed with channel-section steel in progradation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104248360A CN103161471A (en) | 2011-12-19 | 2011-12-19 | Construction method in which large-diameter shield advances across air shaft in long distance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104248360A CN103161471A (en) | 2011-12-19 | 2011-12-19 | Construction method in which large-diameter shield advances across air shaft in long distance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103161471A true CN103161471A (en) | 2013-06-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011104248360A Pending CN103161471A (en) | 2011-12-19 | 2011-12-19 | Construction method in which large-diameter shield advances across air shaft in long distance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103161471A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103742154A (en) * | 2013-12-31 | 2014-04-23 | 中交第二航务工程局有限公司 | Shield tunnel ventilation shaft construction method |
| CN104389608A (en) * | 2014-11-19 | 2015-03-04 | 中交隧道工程局有限公司 | Air shaft shield crossing construction method |
| CN109162741A (en) * | 2018-10-29 | 2019-01-08 | 中铁十二局集团有限公司 | The method in shield crossing piston air duct and piston air duct superstructure synchronous construction |
| CN109989760A (en) * | 2019-03-20 | 2019-07-09 | 中铁四局集团有限公司 | A kind of method of shield crossing ventilating shaft near a river |
| CN111535823A (en) * | 2020-06-15 | 2020-08-14 | 中铁二局集团有限公司 | Shield construction method for pipe gallery working well |
| CN112647962A (en) * | 2020-12-18 | 2021-04-13 | 上海隧道工程有限公司 | Method for rapidly entering and exiting hole under air shaft with small curvature radius and shield base |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000054784A (en) * | 1998-08-10 | 2000-02-22 | Kajima Corp | Diameter contracting shield tunneling and device therefor |
| JP2001098883A (en) * | 1999-09-29 | 2001-04-10 | Taisei Corp | Tunnel construction method and shield machine for use therein |
| CN102094650A (en) * | 2009-12-14 | 2011-06-15 | 上海市基础工程有限公司 | Construction method for shield holing under complicated working conditions |
| CN102146679A (en) * | 2010-02-09 | 2011-08-10 | 中铁十一局集团有限公司 | Construction method for complex geological section earth pressure balance shield passing middle air shaft |
-
2011
- 2011-12-19 CN CN2011104248360A patent/CN103161471A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000054784A (en) * | 1998-08-10 | 2000-02-22 | Kajima Corp | Diameter contracting shield tunneling and device therefor |
| JP2001098883A (en) * | 1999-09-29 | 2001-04-10 | Taisei Corp | Tunnel construction method and shield machine for use therein |
| CN102094650A (en) * | 2009-12-14 | 2011-06-15 | 上海市基础工程有限公司 | Construction method for shield holing under complicated working conditions |
| CN102146679A (en) * | 2010-02-09 | 2011-08-10 | 中铁十一局集团有限公司 | Construction method for complex geological section earth pressure balance shield passing middle air shaft |
Non-Patent Citations (2)
| Title |
|---|
| 杨成龙: "上海人民路越江隧道北线盾构施工关键技术", 《特种工程》, vol. 33, no. 4, 25 April 2011 (2011-04-25) * |
| 杨红军: "广州地铁3号线北延段盾构区间条形基础过中风井施工技术", 《地下工程建设与环境和谐发展》, 1 October 2009 (2009-10-01) * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103742154A (en) * | 2013-12-31 | 2014-04-23 | 中交第二航务工程局有限公司 | Shield tunnel ventilation shaft construction method |
| CN104389608A (en) * | 2014-11-19 | 2015-03-04 | 中交隧道工程局有限公司 | Air shaft shield crossing construction method |
| CN109162741A (en) * | 2018-10-29 | 2019-01-08 | 中铁十二局集团有限公司 | The method in shield crossing piston air duct and piston air duct superstructure synchronous construction |
| CN109989760A (en) * | 2019-03-20 | 2019-07-09 | 中铁四局集团有限公司 | A kind of method of shield crossing ventilating shaft near a river |
| CN109989760B (en) * | 2019-03-20 | 2020-10-02 | 中铁四局集团有限公司 | Method for shield to penetrate through near-river air shaft |
| CN111535823A (en) * | 2020-06-15 | 2020-08-14 | 中铁二局集团有限公司 | Shield construction method for pipe gallery working well |
| CN111535823B (en) * | 2020-06-15 | 2022-03-01 | 中铁二局集团有限公司 | Shield construction method for pipe gallery working well |
| CN112647962A (en) * | 2020-12-18 | 2021-04-13 | 上海隧道工程有限公司 | Method for rapidly entering and exiting hole under air shaft with small curvature radius and shield base |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130619 |