CN103628916A - Excavation construction method of high-pressure water gushing tunnel - Google Patents
Excavation construction method of high-pressure water gushing tunnel Download PDFInfo
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- CN103628916A CN103628916A CN201310633550.2A CN201310633550A CN103628916A CN 103628916 A CN103628916 A CN 103628916A CN 201310633550 A CN201310633550 A CN 201310633550A CN 103628916 A CN103628916 A CN 103628916A
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Abstract
The invention discloses an excavation construction method of a high-pressure water gushing tunnel, and relates to a water-rich tunnel excavation method which is capable of realizing safe and rapid construction aiming at a rapid transition high-pressure water gushing section of a water gushing tunnel. The excavation construction method comprises the following steps of (1) determination of the position of a water gushing source: preliminarily determining the direction and the position of a front water source on a tunnel face which is subjected to water gushing according to an advanced detection method; (2) water pressure releasing by selecting a construction method of locally advancing or rounding a pilot tunnel position. The excavation construction method disclosed by the invention is suitable for the construction of a large-section high-pressure water gushing tunnel, the water pressure is released through reasonable measure of locally rounding and advancing a pilot tunnel during the construction of the high-pressure water gushing tunnel, the influence on excavation construction of high-pressure water gushing is effectively reduced, the problem that procedures of drilling, charging, blasting and the like during an excavating and blasting process are difficult to carry out is solved, the normal operation of the construction is ensured, the operation is simple and easy, and other cost is not increased.
Description
Technical field:
The invention belongs to construction of tunnel technical field, particularly the excavation construction method in a kind of water gushing out with high pressure tunnel.
Background technology:
In water gushing out with high pressure constructing tunnel process, it is larger that water gushing out with high pressure has a strong impact in face construction drill, powder charge process impact, even occurs holing, the operation such as powder charge.
Summary of the invention:
Object of the present invention is just to overcome above-mentioned the deficiencies in the prior art, and provides the excavation construction method in a kind of water gushing out with high pressure tunnel, the method can effectively alleviate the impact of water gushing out with high pressure on face construction, thereby guarantee to construct, normally carries out.
As above design, technical scheme of the present invention is: the excavation construction method in a kind of water gushing out with high pressure tunnel, is characterized in that: comprise the steps:
1. determine water burst source position: at the tunnel tunnel face that water burst occurs, by the method for forward probe, tentatively determine water source, the place ahead direction, position;
2. select the construction method pressure release power of in advance local or the pilot tunnel position of detouring; When water burst is only present in a side of current face, at current face, can carry out leading little pilot tunnel construction, when little pilot tunnel is constructed to high pressure water burst position, water gushing out with high pressure discharges in little pilot tunnel, and then carrying out former face excavation, according to going out, water burst situation is staggered carries out two parts; When water yield larger, and while all there is water gushing out with high pressure in all positions of current face, can step back in current face position to the anhydrous construction section construction pilot tunnel that detours, when water burst appears in little pilot tunnel, after former face water burst is discharged, carry out face construction, two parts are selected installation opportunity according to water outlet situation.
Construction method of the present invention is simple to operation, does not increase other costs, has effectively reduced the impact of water gushing out with high pressure on excavation construction, has solved the difficulty of the operations such as boring in excavation blasting process, powder charge, explosion, has guaranteed normally carrying out of construction.
The specific embodiment:
The excavation construction method in water gushing out with high pressure tunnel, comprises the steps:
1. determine water burst source position: the method for carrying out forward probe by TSP or leading inspecting hole at the tunnel tunnel face that water burst occurs is tentatively determined water source, the place ahead direction, position;
2. select the construction method pressure release power of in advance local or the pilot tunnel position of detouring.When water burst is only present in a side of current face, at current face, can carry out leading little pilot tunnel construction, when little pilot tunnel is constructed to high pressure water burst position, water gushing out with high pressure discharges in little pilot tunnel, and then carrying out former face excavation, according to going out, water burst situation is staggered carries out two parts; When water yield larger, and while all there is water gushing out with high pressure in all positions of current face, can step back in current face position to the anhydrous construction section construction pilot tunnel that detours, when water burst appears in little pilot tunnel, after former face water burst is discharged, carry out face construction, two parts are selected installation opportunity according to water outlet situation.
The present invention is a kind of rich water tunnel excavation method that realizes safety quick construction for water burst tunnel fast transition water gushing out with high pressure paragraph, simple to operation, does not increase other costs, can effectively reduce the impact of water gushing out with high pressure on excavation construction.
Claims (1)
1. the excavation construction method in water gushing out with high pressure tunnel, is characterized in that: comprise the steps:
1. determine water burst source position: at the tunnel tunnel face that water burst occurs, by the method for forward probe, tentatively determine water source, the place ahead direction, position;
2. select the construction method pressure release power of in advance local or the pilot tunnel position of detouring; When water burst is only present in a side of current face, at current face, can carry out leading little pilot tunnel construction, when little pilot tunnel is constructed to high pressure water burst position, water gushing out with high pressure discharges in little pilot tunnel, and then carrying out former face excavation, according to going out, water burst situation is staggered carries out two parts; When water yield larger, and while all there is water gushing out with high pressure in all positions of current face, can step back in current face position to the anhydrous construction section construction pilot tunnel that detours, when water burst appears in little pilot tunnel, after former face water burst is discharged, carry out face construction, two parts are selected installation opportunity according to water outlet situation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310633550.2A CN103628916A (en) | 2013-11-28 | 2013-11-28 | Excavation construction method of high-pressure water gushing tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310633550.2A CN103628916A (en) | 2013-11-28 | 2013-11-28 | Excavation construction method of high-pressure water gushing tunnel |
Publications (1)
| Publication Number | Publication Date |
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| CN103628916A true CN103628916A (en) | 2014-03-12 |
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| CN201310633550.2A Pending CN103628916A (en) | 2013-11-28 | 2013-11-28 | Excavation construction method of high-pressure water gushing tunnel |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104213922A (en) * | 2014-08-19 | 2014-12-17 | 西安建筑科技大学 | Stability augmentation short step construction method for advanced water drainage of lower guide pit in tunnel passing water-rich strata |
| CN105545312A (en) * | 2015-12-23 | 2016-05-04 | 中国水电建设集团十五工程局有限公司 | Water burst pretreatment method adopted before tunnel face excavation |
| CN107229812A (en) * | 2017-07-31 | 2017-10-03 | 中国水利水电第七工程局成都水电建设工程有限公司 | A kind of high hydraulic pressure Karst Tunnel lining cutting water pressure calculation method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101922302A (en) * | 2010-08-30 | 2010-12-22 | 中铁第四勘察设计院集团有限公司 | Fault processing method of high pressure water enrichment area |
| CN202560319U (en) * | 2012-04-01 | 2012-11-28 | 中铁十二局集团第二工程有限公司 | Tunnel drainage and pressure reduction structure |
| CN103306683A (en) * | 2013-06-18 | 2013-09-18 | 中铁隧道集团有限公司 | Construction method for comprehensive precipitation in hole in deep-buried tunnel excavation process |
| CN103334770A (en) * | 2013-06-09 | 2013-10-02 | 中铁隧道集团有限公司 | Construction method of superhigh water pressure water-affluent crushed zones of long-large counter-slope tunnels |
| CN103628915A (en) * | 2013-11-28 | 2014-03-12 | 中铁十三局集团有限公司 | Dewatering and drainage method for large-section water-rich saturation fine-silt tunnel |
-
2013
- 2013-11-28 CN CN201310633550.2A patent/CN103628916A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101922302A (en) * | 2010-08-30 | 2010-12-22 | 中铁第四勘察设计院集团有限公司 | Fault processing method of high pressure water enrichment area |
| CN202560319U (en) * | 2012-04-01 | 2012-11-28 | 中铁十二局集团第二工程有限公司 | Tunnel drainage and pressure reduction structure |
| CN103334770A (en) * | 2013-06-09 | 2013-10-02 | 中铁隧道集团有限公司 | Construction method of superhigh water pressure water-affluent crushed zones of long-large counter-slope tunnels |
| CN103306683A (en) * | 2013-06-18 | 2013-09-18 | 中铁隧道集团有限公司 | Construction method for comprehensive precipitation in hole in deep-buried tunnel excavation process |
| CN103628915A (en) * | 2013-11-28 | 2014-03-12 | 中铁十三局集团有限公司 | Dewatering and drainage method for large-section water-rich saturation fine-silt tunnel |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104213922A (en) * | 2014-08-19 | 2014-12-17 | 西安建筑科技大学 | Stability augmentation short step construction method for advanced water drainage of lower guide pit in tunnel passing water-rich strata |
| CN105545312A (en) * | 2015-12-23 | 2016-05-04 | 中国水电建设集团十五工程局有限公司 | Water burst pretreatment method adopted before tunnel face excavation |
| CN107229812A (en) * | 2017-07-31 | 2017-10-03 | 中国水利水电第七工程局成都水电建设工程有限公司 | A kind of high hydraulic pressure Karst Tunnel lining cutting water pressure calculation method |
| CN107229812B (en) * | 2017-07-31 | 2020-08-28 | 中国水利水电第七工程局成都水电建设工程有限公司 | Method for calculating water pressure of lining of high-water-pressure karst tunnel |
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Application publication date: 20140312 |