| 巴玉隧道施工中岩爆风险动态管控措施 |
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| 引用本文： | 韩侃,杨文斌,陈贤丰,王秉勇.巴玉隧道施工中岩爆风险动态管控措施[J].铁道建筑,2020(6):65-68. |
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| 作者姓名： | 韩侃 杨文斌 陈贤丰 王秉勇 |
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| 作者单位： | 中铁西北科学研究院有限公司;中铁十二局集团第二工程有限公司;兰州交通大学土木工程学院;中国中铁科学研究院有限公司 |
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| 基金项目： | 国家自然科学基金(51868038)。 |
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| 摘 要： | 针对隧道岩爆管控难题,结合川藏铁路巴玉隧道工程地质条件及岩爆特点,分析了岩爆的判别、规律及危害性。总结了针对隧道各级岩爆风险的动态施工技术,提出优化工程布置和开挖参数、提前释放围岩应力、完善直眼掏槽和水压爆破工艺、机械化配套施工等动态防控措施,确保了岩爆地段施工安全。本文可为类似高原高地应力隧道施工岩爆风险动态管控提供参考。
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| 关 键 词： | 铁路隧道 岩爆管控 理论分析 巴玉隧道 川藏铁路 高地应力 |
Dynamic Management Control Measures of Rockburst Risk in Bayu Tunnel Construction |
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| HAN Kan,YANG Wenbin,CHEN Xianfeng,WANG Bingyong.Dynamic Management Control Measures of Rockburst Risk in Bayu Tunnel Construction[J].Railway Engineering,2020(6):65-68. |
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| Authors: | HAN Kan YANG Wenbin CHEN Xianfeng WANG Bingyong |
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| Institution: | (Northwest Research Institute Co.Ltd.of C.R.E.C,Lanzhou 730000,China;The 2th Engineering Co.Ltd.of China Railway 12th Bureau Group,Taiyuan 030000,China;School of Civil Engineering,Lanzhou Jiaotong University,Lanzhou 730070,China;China Raliway Academy Co.Ltd.,Chengdu 611731,China) |
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| Abstract: | According to the difficult problem of rockburst management control in the tunnel and by combining with the engineering geological conditions and rockburst characteristics of Bayu tunnel in Sichuan-Tibet railway,this paper analyzed the discrimination,law and harmfulness of rockburst.It summarized the dynamic construction technology aiming at all levels of rockburst risk in the tunnel,and put forward the dynamic prevention and control measures such as optimizing the engineering layout and excavation parameters,releasing the surrounding rock stress in advance,improving the straight cutting and hydraulic blasting technology,and achieving mechanized supporting construction,which could ensure the construction safety of rockburst section.This paper provide a reference for the dynamic management control of rockburst risk in similar plateau and high crustal stress tunnel construction. |
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| Keywords: | railway tunnel rockburst control theoretical analysis Bayu tunnel Sichuan-Tibet railway high crustal stress |
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