[1]赵柏文.铁路隧道高瓦斯突出段安全施工关键技术[J].高速铁路技术,2017,8(06):38-44.[doi:10.12098/j.issn.1674-8247.2017.06.009]
　ZHAO Baiwen.Key Technologies for Safety Construction of High Gas Outburst Section of Railway Tunnel[J].HIGH SPEED RAILWAY TECHNOLOGY,2017,8(06):38-44.[doi:10.12098/j.issn.1674-8247.2017.06.009]
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铁路隧道高瓦斯突出段安全施工关键技术()
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《高速铁路技术》[ISSN:1674-8247/CN:51-1730/U]

卷:
8卷
期数:
2017年06期
页码:
38-44
栏目:
出版日期:
2017-11-15

文章信息/Info

Title:
Key Technologies for Safety Construction of High Gas Outburst Section of Railway Tunnel
文章编号:
1674—8247(2017)06—0038—07
作者:
赵柏文
中铁二院工程集团有限责任公司, 成都 610031
Author(s):
ZHAO Baiwen
China Railway Eryuan Engineering Group Co., Ltd.,Chengdu 610031, China
关键词:
双线隧道;  高瓦斯;  突出;  水力压裂;  安全保护系统
Keywords:
Key words:double track tunnel;  high gas;  gas outburst;  hydraulic fracturing;  safety protection system
分类号:
U455
DOI:
10.12098/j.issn.1674-8247.2017.06.009
文献标志码:
A
摘要:
渝黔铁路新凉风垭隧道洞身穿越二叠系龙潭组煤系地层,有可采煤层9层,最大瓦斯压力1.5MPa,是煤系地层高瓦斯具突出性高风险的双线铁路隧道。为确保施工安全,在隧道施工过程中修改完善了瓦斯预测及验证设计,详细提出区域预测与验证、工作面预测与验证的具体要求,以及各个预测及验证步骤实施的位置和验证方法。为缩短抽放时间采用了水力压裂增透技术,达到了很好的抽放效果,并制定多煤层集中抽采结合下导坑自然排放的瓦斯抽排放方案。另引入了六大安全保护系统,有效地确保了工期及施工安全。
Abstract:
Abstract:New Liangfengya tunnel on Chongqing-Guizhou line crossing the Longtan formation coal measure strata of Permian, there are 9 layers of workable seam, maximum gas pressure 1.5MPa, it is a double line railway tunnel with high outburst risk in coal measure strata. In order to ensure the safety of construction, in the process of tunnel construction, the gas prediction and verification design is improved, the specific requirements for regional prediction and verification, and the prediction and verification of the working face as well aslocation and verification methods for each prediction and validation step are presented in detail. In order to shorten the drainage time, hydraulic fracturing technology is applied in construction, and a good drainage effect is achieved, also the gas drainage scheme of multi-seam concentrated drainage combined with natural emission of the downside heading, in addition, six security protection systems are introduced to effectively ensure the construction period and construction safety.

参考文献/References:

[1] TB 10120-2002 铁路瓦斯隧道技术规范[S]. TB 10120-2002 Technical code for railway tunnel with gas [S].
[2] 国家安全生产监督管理总局19号令,防治煤与瓦斯突出规定[S]. Order No.19 of State Administration of Work Safety, Regulations on Coal and Gas Outbursts Prevention[S].
[3] 中铁二院工程集团有限责任公司.新凉风垭隧道工程地质说明[Z].成都:中铁二院工程集团有限责任公司,2012. China Railway Eryuan Engineering Group Co.,Ltd.Engineering geology description for new Liangfengya tunnel[Z].Chengdu:China Railway EryuanEngineering Group Co.,Ltd.,2012.
[4] 中铁二院工程集团有限责任公司.新凉风垭隧道施工图设计[Z].成都:中铁二院工程集团有限责任公司,2012. China Railway Eryuan Engineering Group Co.,Ltd. Construction drawing design for new Liangfengya tunnel[Z].Chengdu:China Railway Eryuan Engineering Group Co.,Ltd.,2012.
[5] 王学生.方斗山隧道揭煤施工技术[J].西部探矿工程,2009,21(3):150-152. WANG Xuesheng. Construction technology for cutting through coal seam in Fangdoushan tunnel[J].West-china Exploration Engineering,2009,21(3):150-152.
[6] 刘汉银.瓦斯突出隧道揭煤施工技术[J].铁道建筑技术,2010,37(12):39-43. LIU Hanyin. Construction technology for cutting through coal seam in gas outburst tunnel[J].Railway Construction Technology,2010,37(12):39-43.

相似文献/References:

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　ZOU Pengcheng.Large-span Tunnel with Three-lining Cross-cutting Method under the Existing Railway[J].HIGH SPEED RAILWAY TECHNOLOGY,2017,8(06):74.[doi:10.12098/j.issn.1674-8247.2017.06.015]

备注/Memo

备注/Memo:
作者简介:赵柏文(1980-),男,高级工程师。
更新日期/Last Update: 2017-12-15