CN103306681A - Tunneling sector rotation construction method - Google Patents
Tunneling sector rotation construction method Download PDFInfo
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- CN103306681A CN103306681A CN2013102468312A CN201310246831A CN103306681A CN 103306681 A CN103306681 A CN 103306681A CN 2013102468312 A CN2013102468312 A CN 2013102468312A CN 201310246831 A CN201310246831 A CN 201310246831A CN 103306681 A CN103306681 A CN 103306681A
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- 238000010276 construction Methods 0.000 title claims abstract description 21
- 230000005641 tunneling Effects 0.000 title abstract description 3
- 238000009412 basement excavation Methods 0.000 claims abstract description 20
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 4
- 239000010959 steel Substances 0.000 claims abstract description 4
- 238000009434 installation Methods 0.000 claims description 5
- 238000003466 welding Methods 0.000 claims description 3
- 238000004886 process control Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 15
- 239000002699 waste material Substances 0.000 abstract description 3
- 239000012530 fluid Substances 0.000 abstract description 2
- 238000009415 formwork Methods 0.000 abstract 1
- 238000000465 moulding Methods 0.000 abstract 1
- 230000007306 turnover Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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Abstract
The invention relates to a tunneling sector rotation construction method which comprises the following steps of 1) excavation and support: sector support design is conducted firstly, the inner side semidiameter of a sector support is more than 1.5 meters, and the clearance size during the excavation is controlled within a design scope; and 2) secondary lining: lining formworks are laid out according to a sector, and a side wall is provided with a curve steel molding plate. The method has the benefits that the problems that the other end of a stagger line tunnel cannot be excavated as a working plane, and a cross section of the main tunnel is widened and lengthened for opening turn to result in waste, discontinuous procedures, and a long construction period are solved; the method is simple in process flow, labor-saving, material-saving, short in construction period, and high in efficiency; a product of the method is linear and attractive, corresponds with a fluid motion rule; and the method has very significant economic and social benefits.
Description
Technical field
The present invention relates to a kind of technical field of building construction, relate in particular to the fan-shaped rotation swivel construction method of a kind of tunnel piercing.
Background technology
In the work progress of the underground passages such as subway walkway, air channel, the urgency that usually can run into tunnel turnover 90 degree is turned round; No. eight line art museums of Beijing Metro station just runs into many places; Wherein between the plug-in device of northwest for satisfying the requirement that is open to traffic, set up place's Temporary Ventilation vertical shaft, the wide 4.4m of its main air duct, high 4.2m, with the wide 3.6m in inferior air channel of ventilating shaft opening part, high 2.5m.
If adopt traditional tunnel turnover job practices, working procedure is seen Fig. 5, and its concrete steps are: 1) excavate main tunnel; 2) lining cutting master tunnel (reserving time tunnel opening place); 3) excavation time tunnel; 4) lining cutting time tunnel; In order to satisfy time tunnel opening technique, need to strengthen, lengthen main tunnel cross-section, opening part need to arrange reinforcing ring.
The defective of conventional construction method is: traditional excavation method can only be excavated first main tunnel, rear excavation time tunnel; Can not solve because of the duration tight, main tunnel one side can't provide the scope of operation, opposite time tunnel one side shaft hoisting device resource is idle, but can't implement the contradiction of tunnel excavation.In addition: its main tunnel cross-section of traditional excavation method has carried out the unwanted increasing lengthening of use function, operation is discontinuous, long in time limit, can not satisfy construction period.
Summary of the invention
The purpose of this invention is to provide a kind of set of tunneling construction method, to overcome present prior art above shortcomings.
The objective of the invention is to be achieved through the following technical solutions:
The fan-shaped rotation swivel construction method of a kind of tunnel piercing may further comprise the steps:
1) excavation supporting: at first carry out fan-shaped design of its support, fan-shaped supporting inner radius should be more than 1.5 meters, digging process control headroom size in scope of design, inboard Grill space should about 0.4 meter or below; Outside Grill space is 0.6 meter ~ 0.8 meter; Add 1 ~ 2 half Pin grid between the whole Pin grid in the outside; Add the position of half Pin grid, vertically the dowel spacing is about 0.5 meter, vertically dowel arrange up and down put and with the grid firm welding; When the tunnel excavation headroom surpasses 5.5m, can select to arrange median septum according to field condition.Each Pin grid is numbered, according to the installation site of each Pin grid of numbering control, according to the installation site control excavation headroom size of grid; And
2) secondary lining: the lining cutting mould bases is by fan-shaped layout, and abutment wall arranges the curve steel template, and the inboard spacing of lining cutting mould bases is about 0.4 meter, and outside spacing is 0.6 meter ~ 0.8 meter, and the arch template of lining cutting mould bases adopts plank, and the plank upper surface is laid veneer.
Beneficial effect of the present invention is: having solved inflection threaded list road can not be that scope of operation excavation, main tunnel cause waste, an operation difficult problem discontinuous, long in time limit for the opening turnover makes its section strengthen lengthening from the other end; Its technological process is simple, saving of labor, material-saving, the duration is short, efficient is high; Its product is linear attractive in appearance, meets the fluid motion rule, and economical, societal benefits are very remarkable.
Description of drawings
The below is described in further detail the present invention with reference to the accompanying drawings.
Fig. 1 is the operation schematic diagram of the fan-shaped rotation swivel construction method of the described tunnel piercing of the embodiment of the invention;
Fig. 2 is the sectional view of A-A line among Fig. 1;
Fig. 3 is the grid arrangement diagram of the fan-shaped rotation swivel construction method of the described tunnel piercing of the embodiment of the invention;
Fig. 4 is the sectional view of B-B line among Fig. 3;
Fig. 5 is the construction operation schematic diagram in prior art 90 degree turnover tunnels.
Among the figure:
1, excavation supporting line; 2, secondary lining line; 3, stopping; 4, equipment room; 5, ventilating shaft; 6, construction direction; 7, whole Pin grid; 8, half Pin grid; 9, dowel; Four steps of the first step to the of working procedure in I ~ IV, the prior art.
The specific embodiment
Such as Fig. 1 ~ shown in Figure 4, the fan-shaped rotation swivel construction method of the described a kind of tunnel piercing of the embodiment of the invention, its concrete steps are as follows:
1, excavation supporting
Before excavation the preliminary bracing grid arranged and design, its main points are: the inner side of curve radius is suitable 〉=and 1.5m; Inboard Grill space ≈ 0.4m or as far as possible reduce; The outside Grill space 0.6 ~ 0.8m(or according to the actual conditions adjustment); Between the whole Pin grid 7 in the outside, add 1 ~ 2 half Pin grid 8; It adds the position of half Pin grid 8, and vertically dowel 9 spacing ≈ 0.5m are strengthened, and vertically dowel 9 is arranged up and down and put, and with the grid firm welding; When the tunnel excavation headroom surpasses 5.5m, consider to arrange median septum; Strict control headroom size in excavation, its main points are: each Pin grid is numbered, adopts coordinate method to control the installation site of each Pin grid.
2, secondary lining
The lining cutting mould bases is by fan-shaped layout, inboard spacing ≈ 0.4m, outside spacing 0.6 ~ 0.8m; Abutment wall arranges curve steel template, vertical array; The arch template adopts plank, and the plank upper surface is laid veneer, on-the-spot according to real size blanking install.Other method of operating is all by ripe construction technology.
The fan-shaped method job practices of turning of tunnel piercing provided by the invention has solved inflection threaded list road and can not cause waste, an operation difficult problem discontinuous, long in time limit for open section strengthens lengthening from other end scope of operation excavation, main tunnel.
The present invention is not limited to above-mentioned preferred forms; anyone can draw other various forms of products under enlightenment of the present invention; no matter but do any variation in its shape or structure; every have identical with a application or akin technical scheme, all drops within protection scope of the present invention.
Claims (5)
1. the fan-shaped rotation swivel construction method of tunnel piercing is characterized in that, may further comprise the steps:
1) excavation supporting: at first carry out fan-shaped design of its support, fan-shaped supporting inner radius should be more than 1.5 meters, and digging process control headroom size is in scope of design, and inboard Grill space should be no more than 0.4 meter; Outside Grill space is 0.6 meter ~ 0.8 meter; Add 1 ~ 2 half Pin grid between the whole Pin grid in the outside; And
2) secondary lining: the lining cutting mould bases is by fan-shaped layout, and abutment wall arranges the curve steel template, and the inboard spacing of lining cutting mould bases is 0.4 meter, and outside spacing is 0.6 meter ~ 0.8 meter.
2. the fan-shaped rotation swivel construction method of tunnel piercing according to claim 1, it is characterized in that: in the step 1), the vertical dowel spacing in position of adding half Pin grid is about 0.5 meter, vertically dowel arrange up and down put and with the grid firm welding.
3. the fan-shaped rotation swivel construction method of tunnel piercing according to claim 2 is characterized in that: in the step 1), when the tunnel excavation headroom surpasses 5.5m, can select to arrange median septum according to field condition.
4. the fan-shaped rotation swivel construction method of tunnel piercing according to claim 3 is characterized in that: in the step 1), each Pin grid is numbered, according to the installation site of each Pin grid of numbering control, according to the installation site control excavation headroom size of grid.
5. the fan-shaped rotation swivel construction method of tunnel piercing according to claim 4 is characterized in that: step 2) in, the arch template of lining cutting mould bases adopts plank, and the plank upper surface is laid veneer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310246831.2A CN103306681B (en) | 2013-06-20 | 2013-06-20 | A kind of tunnel piercing sector rotation construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310246831.2A CN103306681B (en) | 2013-06-20 | 2013-06-20 | A kind of tunnel piercing sector rotation construction method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103306681A true CN103306681A (en) | 2013-09-18 |
| CN103306681B CN103306681B (en) | 2015-09-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310246831.2A Expired - Fee Related CN103306681B (en) | 2013-06-20 | 2013-06-20 | A kind of tunnel piercing sector rotation construction method |
Country Status (1)
| Country | Link |
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| CN (1) | CN103306681B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109611115A (en) * | 2018-12-14 | 2019-04-12 | 中铁北京工程局集团城市轨道交通工程有限公司 | A kind of preliminary bracing engineering method for minor-circle turn |
| CN110374635A (en) * | 2019-07-31 | 2019-10-25 | 中国三峡建设管理有限公司 | A kind of big cross section different gradient dog-ear position concrete construction method |
| CN110566239A (en) * | 2019-10-11 | 2019-12-13 | 中建八局轨道交通建设有限公司 | mounting and positioning method for grid support at turning position of underground excavation tunnel |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3001376A1 (en) * | 1980-01-16 | 1981-07-23 | Bochumer Eisenhütte Heintzmann GmbH & Co, 4630 Bochum | Bend section for mine gallery support structure - has arched radiating from inner corner, with channels connected by intermediate adaptors |
| CN1242454A (en) * | 1998-07-21 | 2000-01-26 | 陈建源 | Road crossing design or layout for vehicles passing through and vehicles passing mode therefor |
| CN1952350A (en) * | 2006-10-27 | 2007-04-25 | 中铁四局集团有限公司 | Rapid construction method for small-section abrupt change tunnel to large-section tunnel |
| CN101586346A (en) * | 2008-11-10 | 2009-11-25 | 郑州市市政工程总公司 | Method for constructing multi-functional metro interchange station complex |
| CN102182465A (en) * | 2011-04-01 | 2011-09-14 | 长安大学 | Tunnel-entering construction method for tunnel |
| CN202851011U (en) * | 2012-10-26 | 2013-04-03 | 中铁二十二局集团第六工程有限公司 | Existing grate and novel grate connecting system in tunnel construction |
-
2013
- 2013-06-20 CN CN201310246831.2A patent/CN103306681B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3001376A1 (en) * | 1980-01-16 | 1981-07-23 | Bochumer Eisenhütte Heintzmann GmbH & Co, 4630 Bochum | Bend section for mine gallery support structure - has arched radiating from inner corner, with channels connected by intermediate adaptors |
| CN1242454A (en) * | 1998-07-21 | 2000-01-26 | 陈建源 | Road crossing design or layout for vehicles passing through and vehicles passing mode therefor |
| CN1952350A (en) * | 2006-10-27 | 2007-04-25 | 中铁四局集团有限公司 | Rapid construction method for small-section abrupt change tunnel to large-section tunnel |
| CN101586346A (en) * | 2008-11-10 | 2009-11-25 | 郑州市市政工程总公司 | Method for constructing multi-functional metro interchange station complex |
| CN102182465A (en) * | 2011-04-01 | 2011-09-14 | 长安大学 | Tunnel-entering construction method for tunnel |
| CN202851011U (en) * | 2012-10-26 | 2013-04-03 | 中铁二十二局集团第六工程有限公司 | Existing grate and novel grate connecting system in tunnel construction |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109611115A (en) * | 2018-12-14 | 2019-04-12 | 中铁北京工程局集团城市轨道交通工程有限公司 | A kind of preliminary bracing engineering method for minor-circle turn |
| CN110374635A (en) * | 2019-07-31 | 2019-10-25 | 中国三峡建设管理有限公司 | A kind of big cross section different gradient dog-ear position concrete construction method |
| CN110374635B (en) * | 2019-07-31 | 2020-07-07 | 中国三峡建设管理有限公司 | Concrete construction method for large-section different-gradient bevel part |
| CN110566239A (en) * | 2019-10-11 | 2019-12-13 | 中建八局轨道交通建设有限公司 | mounting and positioning method for grid support at turning position of underground excavation tunnel |
| CN110566239B (en) * | 2019-10-11 | 2020-10-13 | 中建八局轨道交通建设有限公司 | Mounting and positioning method for grid support at turning position of underground excavation tunnel |
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| Publication number | Publication date |
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| CN103306681B (en) | 2015-09-09 |
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