| 隧道地下风机房洞室群围岩稳定性三维有限元模拟 |
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| 引用本文： | 张世清.隧道地下风机房洞室群围岩稳定性三维有限元模拟[J].西安科技大学学报,2012(6):702-706. |
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| 作者姓名： | 张世清 |
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| 作者单位： | 陕西煤业化工建设集团,陕西西安710021 |
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| 基金项目： | 基金项目：高等学校博士学科点专项科研基金（20096121110004） |
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| 摘 要： | 采用有限元软件MIDAS建立隧道地下风机房洞室群的三维计算模型,对隧道地下风机房洞室群的关键部位的稳定性和施工过程进行了分析,研究表明:各个支洞与隧道的交叉处以及各个支洞的顶部的围岩出现大范围的拉应力,拱顶的沉降值和拱底的隆起值比较大,建议在支洞与隧道交叉处应加强支护;通过对洞室群并列洞室施工过程的分析,得到隧道地下风机房洞室并列施工时相互影响很小。
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| 关 键 词： | 洞室群 围岩稳定性 有限元模拟 交叉口 |
FEM simulation analysis on surrounding rock stability of tunnel fan room cavern group |
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| ZHANG Shi-qing.FEM simulation analysis on surrounding rock stability of tunnel fan room cavern group[J].JOurnal of XI’an University of Science and Technology,2012(6):702-706. |
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| Authors: | ZHANG Shi-qing |
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| Institution: | ZHANG Shi-qing ( Shaanxi Coal Chemical Industry Construction Group Co. ,Ltd. , Xi＇an 710021, China) |
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| Abstract: | Using the finite element software MIDAS to build the calculation model of underground tunnel blower room caverns, the stability and the construction process of the key parts that the underground tunnel blower room caverns are analyzed, the research shows that, the cross section of every branch tunnel and tunnel and the tunnel top rock appear big range of tensile stress, the vault the sedimentation and arch bottom uplift value are relatively large. It is recommended that the intersection of branch tunnel and tunnel should be strengthened. Analysis of the construction process shows that the mutual influence is small when underground fan room is parallely constructed. |
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| Keywords: | cavern group surrounding rock stability finite element analysis intersection |
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