CN102808628A - Construction method of passage of large-section tunnel by water diversion fault - Google Patents
Construction method of passage of large-section tunnel by water diversion fault Download PDFInfo
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- CN102808628A CN102808628A CN2012102950137A CN201210295013A CN102808628A CN 102808628 A CN102808628 A CN 102808628A CN 2012102950137 A CN2012102950137 A CN 2012102950137A CN 201210295013 A CN201210295013 A CN 201210295013A CN 102808628 A CN102808628 A CN 102808628A
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Abstract
The invention discloses a construction method of passage of a large-section tunnel by water diversion fault. The construction method includes: firstly, exploring the fault to provide material basis for next tunnel design; secondly, laying out the tunnel design according to exploration conditions; thirdly, grouting and ponding before the tunnel passes the fault; and fourthly, supporting the surrounding rock when the tunnel passes the fault. The construction method is a complete technique integrating exploring, dredging, gushing prevention, and floor-ceiling reinforcement and allowing for passage of the large-section tunnel by the water diversion fault. Supporting measures are taken in response to different conditions, and safety of the tunnel in long-term use is guaranteed.
Description
Technical field
The present invention relates to the roadway construction technology.
Background technology
The middle finger section surpasses 20 square metres underground passage to large section roadway in the mining industry field.Complicated in some hydrogeological conditions, the hydrostatic reserves are big, and hydraulic pressure is high, and such water guide tomography need be passed through during digging laneway, in case the measure deficiency is easy to take place the gushing water accident in the mining area that tomography is grown.Such common tunnelling at present has some experiences of harnessing the river, but opens up big lane for the big section of crossing tomography, brings very big security threat to construction, also needs further research.
Summary of the invention
Safety is crossed water guide tomography problem when the objective of the invention is to the large section roadway construction, proposes a kind of job practices safely and effectively.
Technical scheme is that a kind of large section roadway is crossed the job practices of water guide tomography, it is characterized in that taking following method:
1, tomography exploration
On the basis of mine shaft geology exploration; The fault region that passes through to the tunnel; Utilize the 3-d seismic exploration technology to find out the geological structure developmental state in detail; Utilize ground transient electromagnetic detecting technology to find out near the water enrichment area distribution situation the tomography again, be next step the tunnel design foundation of giving information.
2, tunnel design arrangement
According to the situation that exploration is found out, should avoid rich pool during the design arrangement of tunnel, and, when guaranteeing in a single day exploiting field water outlet in the future, can tunnel and mine be isolated near rich pool Position Design water dam, guarantee mine safety; Calculate simultaneously the position of the waterproofing protection coal column and the waterproof warning line of tomography according to the tomography distribution situation, the waterproof warning line is visited the starting point that discharges water during as tunnelling.
3, the preceding slip casting of tomography, water blockoff are crossed in the tunnel
Roadway construction gets into when visiting the water warning line, stops driving, carries out following work:
Visit: beat water exploring drill at boring head to explored rich pool, verify rich pool situation and wall-rock crack situation;
Annotate: according to the rich pool situation of checking, construction deep inlet well carries out from outside to inside three-dimensional slip casting from shallow to deep to rich pool; For preventing spillage, adopt cotton yarn to add accelerating admixture around the reply Grouting Pipe and carry out preliminary treatment, improve slip casting effect during deep slip casting;
Stifled: shutoff is carried out in the leakage point punching slip casting to meeting head on to occur;
Dredge: when tunnel safety has passed rich pool,, carry out white-out water, to reach the meet head on purpose of the water yield, hydraulic pressure of dispersion in the place construction that does not the influence normal construction boring that discharges water;
Surrounding rock supporting when 4, tomography is crossed in the tunnel
(1) after roadway construction discloses tomography; At first loose wall rock in the fault belt is annotated mud and chemical pulp in advance; Making loose wall rock reach certain intensity tunnels again; The driving back selects the strong pretension anchor pole of superelevation to carry out anchor-net-spray combined supporting, and anchor pole is beaten at group angle and base plate key position benefit, further strengthens the resistance to overturning of surrounding rock structure;
(2) shed shoring: relatively poor or trickle is bigger when the fault belt wall rock condition, in the time of can't carrying out full section anchor net spray supporting, adopt the frame canopy as permanent support, mount between the frame canopy into the cement backboard, whitewashing then, shotcrete thickness is advisable to cover the cement backboard; The ground that trickle is bigger can adopt groove to carry out water guide.
(3) end, top, reinforce: when still having potential safety hazard behind the shed shoring; Need the tunnel roof and floor is carried out grouting and reinforcing; Meet head on to be fan-shaped in the tunnel and hole to top, backplane, wherein base plate boring is no less than 2, and hole depth is not less than 25 meters; Injecting paste material is selected cement list liquid slurry for use, water ash weight ratio 0.5:1; If when the race of meeting head on is starched, should add water glass, the slip casting final pressure solidifies after 24 hours and intermittently tunnels forward greater than 10MPa; Circulation like this is until passing zone of fracture;
(4) grouting behind shaft or drift lining: when the tunnel finds between the operating period that top board has inbreak, empty wall phenomenon, adopt grouting behind shaft or drift lining liquid to reinforce; At first should set up the steel canopy during reinforcing and lay backboard along outline line; With steel pipe backboard is fixed; The anti-leak-stopping material of canvas cloth is laid in big place in the space; Stretch into the inbreak space region to grouting pipeline then and carry out two pulp fluid injections, chemical grout generation fast reaction generates foam, the country rock of loose crushing is cohered be integrally formed false the top; Chemical grout is the beautiful diffusing injecting paste material of N type horse commonly used.
The present invention has finally formed a cover collection and has visited, dredges, prevented gushing water that roof and floor adds the complete set technology that the large section roadway that is fixed in one is crossed the water guide tomography, has the following advantages:
1, safe.This technology has higher safety, and the various situation that take into full account various influence factors in the work progress and possibly run into are many-sidedly considered multi-level design, many strategy replies, the safety that has improved roadway construction greatly.
2, systematicness is strong.This technology has stronger systematicness, and thinking is clear and definite, and route is feasible, forms own system, and different mines can design and implement fully with reference to this mentality of designing and theory, have shown extremely strong compliance and higher promotional value.
3, specific aim is good.Embodied technical concept in this technology implementation process to design.Situation to hydrogeological conditions is unclear has been carried out the Supplementary Exploration design, threatens to gushing water and has designed water dam, takes corresponding supporting countermeasure to the situation under the different condition, and the long-term use in tunnel is had safety guarantee.
The specific embodiment
Those skilled in the art can implement according to the described method of summary of the invention, are not described in detail in this.Further specify advantage of the present invention through an embodiment below.
Need pass through Lee family's tomography when for example, certain ore deposit is designed in track crossdrift tunnel, six exploiting fields.To actual conditions, the technician at first utilizes the 3-d seismic exploration technology to find out the geological structure developmental state in detail to Lee family's tomography, utilizes ground transient electromagnetic detecting technology to find out near the water enrichment area distribution situation that tomography is again; Confirm Lee family's tomography particular location; Confirmed the tunneling layer position and the arrangement in tunnel on this basis, calculating its protection coal column is 116m, delimits apart from the tomography 176m of Lee family to visiting the water warning line; After tunnelling gets into and visits the water warning line; Utilize spy-notes-measure such as block up-dredge to prevent gushing water, take measures such as anchor-net-spray combined supporting and top end reinforcing, passed through Lee family's tomography safely; And construct one of high-quality water dam, carried out safety guarantee for occurring the gushing water emergency later on.
Claims (1)
1. a large section roadway is crossed the job practices of water guide tomography, it is characterized in that, takes following method:
(1) tomography exploration
On the basis of mine shaft geology exploration; The fault region that passes through to the tunnel; Utilize the 3-d seismic exploration technology to find out the geological structure developmental state in detail; Utilize ground transient electromagnetic detecting technology to find out near the water enrichment area distribution situation the tomography again, be next step the tunnel design foundation of giving information;
(2) tunnel design arrangement
According to the situation that exploration is found out, should avoid rich pool during the design arrangement of tunnel, and, when guaranteeing in a single day exploiting field water outlet in the future, can tunnel and mine be isolated near rich pool Position Design water dam, guarantee mine safety; Calculate simultaneously the position of the waterproofing protection coal column and the waterproof warning line of tomography according to the tomography distribution situation, the waterproof warning line is visited the starting point that discharges water during as tunnelling;
(3) the preceding slip casting of tomography, water blockoff are crossed in the tunnel
Roadway construction gets into when visiting the water warning line, stops driving, carries out following work:
Visit: beat water exploring drill at boring head to explored rich pool, verify rich pool situation and wall-rock crack situation;
Annotate: according to the rich pool situation of checking, construction deep inlet well carries out from outside to inside three-dimensional slip casting from shallow to deep to rich pool; For preventing spillage, adopt cotton yarn to add accelerating admixture around the reply Grouting Pipe and carry out preliminary treatment, improve slip casting effect during deep slip casting;
Stifled: shutoff is carried out in the leakage point punching slip casting to meeting head on to occur;
Dredge: when tunnel safety has passed rich pool,, carry out white-out water, to reach the meet head on purpose of the water yield, hydraulic pressure of dispersion in the place construction that does not the influence normal construction boring that discharges water;
Surrounding rock supporting when (four) tomography is crossed in the tunnel, the supporting step is following:
After first roadway construction discloses tomography; At first loose wall rock in the fault belt is annotated mud and chemical pulp in advance; Making loose wall rock reach certain intensity tunnels again; The driving back selects the strong pretension anchor pole of superelevation to carry out anchor-net-spray combined supporting, and anchor pole is beaten at group angle and base plate key position benefit, further strengthens the resistance to overturning of surrounding rock structure;
Second shed shoring: relatively poor or trickle is bigger when the fault belt wall rock condition, in the time of can't carrying out full section anchor net spray supporting, adopt the frame canopy as permanent support, mount between the frame canopy into the cement backboard, whitewashing then, shotcrete thickness is advisable to cover the cement backboard; The place that trickle is bigger adopts groove to carry out water guide;
Reinforce at the bottom of the 3rd top: when still having potential safety hazard behind the shed shoring; Need the tunnel roof and floor is carried out grouting and reinforcing; Meet head on to be fan-shaped in the tunnel and hole to top, backplane, wherein base plate boring is no less than 2, and hole depth is not less than 25 meters; Injecting paste material is selected cement list liquid slurry for use, water ash weight ratio 0.5:1; If when the race of meeting head on is starched, should add water glass, the slip casting final pressure solidifies after 24 hours and intermittently tunnels forward greater than 10MPa; Circulation like this is until passing zone of fracture;
Wall grouting behind shaft or drift lining: when the tunnel finds between the operating period that top board has inbreak, empty wall phenomenon, adopt grouting behind shaft or drift lining liquid to reinforce; At first should set up the steel canopy during reinforcing and lay backboard along outline line; With steel pipe backboard is fixed; The anti-leak-stopping material of canvas cloth is laid in big place in the space; Stretch into the inbreak space region to grouting pipeline then and carry out two pulp fluid injections, chemical grout generation fast reaction generates foam, the country rock of loose crushing is cohered be integrally formed false the top; Chemical grout is the beautiful diffusing injecting paste material of N type horse commonly used.
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| CN201210295013.7A CN102808628B (en) | 2012-08-18 | 2012-08-18 | Construction method of passage of large-section tunnel by water diversion fault |
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| CN102808628B CN102808628B (en) | 2014-09-24 |
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Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103742145A (en) * | 2013-12-24 | 2014-04-23 | 山东新阳能源有限公司 | Water control method for abnormal water-enriched region of coal mine |
| CN103967504A (en) * | 2014-05-21 | 2014-08-06 | 中国能源建设集团广东省电力设计研究院 | Supporting structure of tunnel opening of power plant circulating water system and construction method |
| CN105484753A (en) * | 2015-12-29 | 2016-04-13 | 龙口矿业集团有限公司 | Tunneling support method for high-water-pressure high-flow fracture zone |
| CN106555590A (en) * | 2015-09-24 | 2017-04-05 | 新汶矿业集团有限责任公司翟镇煤矿 | The efficient fully-mechanized mining working method for designing in intensive fault zone |
| CN109488310A (en) * | 2018-11-16 | 2019-03-19 | 中铁二十局集团第六工程有限公司 | Pass through that clastic rock steep dip is inverse to rush rich water tomography method for tunnel construction |
| CN110529150A (en) * | 2019-08-23 | 2019-12-03 | 山东科技大学 | A kind of coal mine fault belt grouting strengthening method based on tracer technique |
| CN111022088A (en) * | 2019-12-23 | 2020-04-17 | 天地科技股份有限公司 | Interception and injection method for roadway pressure-bearing flowing water fault |
| CN111578989A (en) * | 2020-05-06 | 2020-08-25 | 中铁第四勘察设计院集团有限公司 | Exploration method of fault confined water bridge abutment and bridge abutment erection method |
| CN112832821A (en) * | 2021-03-04 | 2021-05-25 | 淮北市平远软岩支护工程技术有限公司 | Fracture surface supporting method based on high pressure water fault fracture zone rheological research |
| CN112832810A (en) * | 2021-03-04 | 2021-05-25 | 淮北市平远软岩支护工程技术有限公司 | Support method for fractured-interval argillization rheological rock mass and application |
| CN112901272A (en) * | 2021-01-15 | 2021-06-04 | 贵州化工建设有限责任公司 | Geophysical prospecting and drilling cooperative advanced water detection and drainage construction method |
| CN112943306A (en) * | 2021-03-11 | 2021-06-11 | 淮北市平远软岩支护工程技术有限公司 | Roadway fault zone supporting method and step based on instability deformation research |
| CN113107537A (en) * | 2021-04-24 | 2021-07-13 | 淮北市平远软岩支护工程技术有限公司 | Distributed grouting technology and method for rock burst confrontation type roadway |
| CN113153309A (en) * | 2021-03-09 | 2021-07-23 | 中铁工程装备集团有限公司 | Tunnel construction method |
| CN113605913A (en) * | 2021-09-01 | 2021-11-05 | 东莞理工学院 | Rock underground passage construction method |
| CN114412571A (en) * | 2022-01-18 | 2022-04-29 | 中国矿业大学 | Coal mine hydrological dynamic monitoring system |
| CN116556980A (en) * | 2023-05-27 | 2023-08-08 | 中煤第三建设（集团）有限责任公司 | Quick tunneling construction method for water-rich large-section roadway in mining area |
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Cited By (26)
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|---|---|---|---|---|
| CN103742145A (en) * | 2013-12-24 | 2014-04-23 | 山东新阳能源有限公司 | Water control method for abnormal water-enriched region of coal mine |
| CN103967504A (en) * | 2014-05-21 | 2014-08-06 | 中国能源建设集团广东省电力设计研究院 | Supporting structure of tunnel opening of power plant circulating water system and construction method |
| CN103967504B (en) * | 2014-05-21 | 2016-05-18 | 中国能源建设集团广东省电力设计研究院有限公司 | A kind of supporting construction and construction method of electric power plant circulating water system tunnel mouth |
| CN106555590A (en) * | 2015-09-24 | 2017-04-05 | 新汶矿业集团有限责任公司翟镇煤矿 | The efficient fully-mechanized mining working method for designing in intensive fault zone |
| CN105484753A (en) * | 2015-12-29 | 2016-04-13 | 龙口矿业集团有限公司 | Tunneling support method for high-water-pressure high-flow fracture zone |
| CN105484753B (en) * | 2015-12-29 | 2018-01-23 | 龙口矿业集团有限公司 | The Supporting Method for Drifting of high hydraulic pressure big flow crushed zone |
| CN109488310A (en) * | 2018-11-16 | 2019-03-19 | 中铁二十局集团第六工程有限公司 | Pass through that clastic rock steep dip is inverse to rush rich water tomography method for tunnel construction |
| CN109488310B (en) * | 2018-11-16 | 2020-02-07 | 中铁二十局集团第六工程有限公司 | Construction method for tunnel penetrating through clastic rock steep-dip reverse-thrust water-rich fault |
| CN110529150A (en) * | 2019-08-23 | 2019-12-03 | 山东科技大学 | A kind of coal mine fault belt grouting strengthening method based on tracer technique |
| CN111022088A (en) * | 2019-12-23 | 2020-04-17 | 天地科技股份有限公司 | Interception and injection method for roadway pressure-bearing flowing water fault |
| CN111578989A (en) * | 2020-05-06 | 2020-08-25 | 中铁第四勘察设计院集团有限公司 | Exploration method of fault confined water bridge abutment and bridge abutment erection method |
| CN112901272A (en) * | 2021-01-15 | 2021-06-04 | 贵州化工建设有限责任公司 | Geophysical prospecting and drilling cooperative advanced water detection and drainage construction method |
| CN112832810A (en) * | 2021-03-04 | 2021-05-25 | 淮北市平远软岩支护工程技术有限公司 | Support method for fractured-interval argillization rheological rock mass and application |
| CN112832821A (en) * | 2021-03-04 | 2021-05-25 | 淮北市平远软岩支护工程技术有限公司 | Fracture surface supporting method based on high pressure water fault fracture zone rheological research |
| CN112832821B (en) * | 2021-03-04 | 2022-07-12 | 淮北市平远软岩支护工程技术有限公司 | Fracture surface supporting method based on high pressure water fault fracture zone rheological research |
| CN113153309A (en) * | 2021-03-09 | 2021-07-23 | 中铁工程装备集团有限公司 | Tunnel construction method |
| CN113153309B (en) * | 2021-03-09 | 2022-03-15 | 中铁工程装备集团有限公司 | Tunnel construction method |
| CN112943306A (en) * | 2021-03-11 | 2021-06-11 | 淮北市平远软岩支护工程技术有限公司 | Roadway fault zone supporting method and step based on instability deformation research |
| CN113107537B (en) * | 2021-04-24 | 2023-11-10 | 淮北市平远软岩支护工程技术有限公司 | Distributed grouting technology and method for rock burst countermeasure type roadway |
| CN113107537A (en) * | 2021-04-24 | 2021-07-13 | 淮北市平远软岩支护工程技术有限公司 | Distributed grouting technology and method for rock burst confrontation type roadway |
| CN113605913A (en) * | 2021-09-01 | 2021-11-05 | 东莞理工学院 | Rock underground passage construction method |
| CN113605913B (en) * | 2021-09-01 | 2024-05-07 | 东莞理工学院 | Rock underground passage construction method |
| CN114412571A (en) * | 2022-01-18 | 2022-04-29 | 中国矿业大学 | Coal mine hydrological dynamic monitoring system |
| CN114412571B (en) * | 2022-01-18 | 2022-09-23 | 中国矿业大学 | Coal mine hydrological dynamic monitoring system |
| CN116556980A (en) * | 2023-05-27 | 2023-08-08 | 中煤第三建设（集团）有限责任公司 | Quick tunneling construction method for water-rich large-section roadway in mining area |
| CN116556980B (en) * | 2023-05-27 | 2024-03-19 | 中煤第三建设（集团）有限责任公司 | Quick tunneling construction method for water-rich large-section roadway in mining area |
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