| 油气田瓦斯隧道开挖掌子面围岩安全厚度研究 |
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| 引用本文： | 姚海波,杜宇,张文选,高峰.油气田瓦斯隧道开挖掌子面围岩安全厚度研究[J].中国安全生产科学技术,2020,16(1):168-174. |
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| 作者姓名： | 姚海波 杜宇 张文选 高峰 |
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| 作者单位： | （1.北方工业大学 土木工程学院力学与地下工程系，北京 100144;2.中国水利水电第七工程局有限公司第一分局，四川 成都 610000） |
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| 基金项目： | 作者简介: 姚海波，博士，教授，主要研究方向为隧道与地下工程。 |
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| 摘 要： | 为降低油气田区隧道施工风险，以龙泉山隧道为依托，采用数值模拟方法对隧道开挖掌子面前方围岩安全厚度进行分析，并结合现场监测数据对所得结论进行验证。研究结果表明:隧道施工使隧址区围岩应力重分布，且应力变化与围岩距掌子面距离L有关，当L≤0.75D（D为隧道净高）时，围岩处于应力释放区；当0.75D
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| 关 键 词： | 隧道 数值模拟 安全厚度 应力场 位移场 塑性区 |
Study on safety thickness of surrounding rock in excavation face of gas tunnel in oil and gas field |
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| YAO Haibo,DU Yu,ZHANG Wenxuan,GAO Feng.Study on safety thickness of surrounding rock in excavation face of gas tunnel in oil and gas field[J].Journal of Safety Science and Technology,2020,16(1):168-174. |
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| Authors: | YAO Haibo DU Yu ZHANG Wenxuan GAO Feng |
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| Institution: | (1.Department of Mechanics and Underground Engineering,School of Civil Engineering,North China University of Technology,Beijing 100144,China;2.First Branch of Sinohydro Bureau 7 Co.,Ltd.,Chengdu Sichuan 610000,China) |
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| Abstract: | In order to reduce the risk of tunnel construction in the oil and gas fields,based on the Longquanshan tunnel,the safety thickness of surrounding rock in front of the tunnel face was analyzed by using the numerical simulation method,and the results were verified by the field test data.The results showed that the tunnel construction caused the redistribution of the stress of surrounding rock in the tunnel area,and the stress change was related to the distance L of the surrounding rock from the face.In the range of L≤0.75D (hole diameter),the surrounding rock lay in the stress release zone.When 0.75D
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| Keywords: | tunnel numerical simulation safety thickness stress field displacement field plastic zone |
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