| 二郎山隧道围岩二次应力场特征分析 |
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| 引用本文： | 靳晓光,王兰生,李晓红.二郎山隧道围岩二次应力场特征分析[J].煤田地质与勘探,2001,29(4):42-44. |
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| 作者姓名： | 靳晓光 王兰生 李晓红 |
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| 作者单位： | 1. 重庆大学西南资源开发与环境灾害控制工程教育部重点实验室
2. 成都理工学院 |
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| 摘 要： | 围岩二次应力场是地下工程开挖后地应力释放并重新进行调整形成，其分布和大小与工程地质条件及施工状况有关，并且直接影响着施工安全和支护措施的优化，本文利用适于现场操作的改进型应力恢复法现场测试围岩的二次应力场，结合数值模拟研究其沿隧道轴线及横断矾变化，分析其与原始地应力场、围岩类别、断裂构造、浅表生改造、地下水状态及施工状况等因素的相关性，不令为地正式各围岩二次应力场研究提供了资料，而且为隧道信息化施工及时提供了信息。
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| 关 键 词： | 恢复法 相关性因素 二郎山隧道 围岩 二次应力场 |
| 文章编号： | 1001-1986(2001)04-0042-03 |
Analysis on quadratic stress field characters of surrounding rock in Erlang mountain highway tunnel |
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| JIN Xiao guang ,WANG Lan sheng ,LI Xiao hong.Analysis on quadratic stress field characters of surrounding rock in Erlang mountain highway tunnel[J].Coal Geology & Exploration,2001,29(4):42-44. |
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| Authors: | JIN Xiao guang WANG Lan sheng LI Xiao hong |
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| Institution: | JIN Xiao guang 1,WANG Lan sheng 2,LI Xiao hong 1 |
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| Abstract: | With underground engineering excavated,geo stress released and being regulated,surrounding rock quadratic stress field was formed.The distribution and magnitude of quadratic stress field relates to engineering geological condition and it affects safety construct and supporting measures directly.Quadratic stress field of surrounding rock was measured in site by using suitable for measuring and improved stress restoring method,combined numerical modeling,the variability features of surrounding rock quadratic stress field along the tunnel axis and cross section were researched in this paper.The dependence between surrounding rocks quadratic stress and geo stress field,surrounding rock class,fracture tectonic,epigenetic surface formation,the state of underground water and construction,was analyzed.It has submitted data to research of quadratic stress field in underground engineering and information immediately to information construction in tunnel. |
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| Keywords: | stress restoring method dependence factors Erlang mountain tunnel |
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