埋深和坡度对浅埋隧道围岩稳定影响的敏感性分析

发布时间：2018-05-04 17:30

本文选题：浅埋隧道 + 稳定性　；参考：《现代隧道技术》2017年04期

【摘要】：埋深和坡度对围岩稳定影响的敏感性分析是浅埋隧道选线及施工方案确定的一项重要研究内容。文献[1]应用自行开发的程序分析了浅埋隧道不同偏压角及埋深下围岩的变形规律。在此研究基础上,文章提出了一种敏感性分析方法,研究隧道埋深和坡度对围岩稳定影响(地表沉降、拱顶沉降、围岩塑性区分布)的敏感性。研究结果表明:地表和拱顶沉降对隧道埋深比较敏感,对偏压角的敏感性相对较小;而围岩塑性区面积对偏压角的敏感度要大于隧道埋深。研究结果对浅埋隧道的设计和施工具有一定的指导价值。
[Abstract]:The sensitivity analysis of the influence of buried depth and slope on the stability of surrounding rock is an important research content in the selection of shallow tunnel and the determination of construction plan. In reference [1], the deformation law of surrounding rock in shallow tunnel with different bias angle and depth is analyzed by using the program developed by ourselves. On the basis of this study, a sensitivity analysis method is proposed to study the sensitivity of tunnel depth and slope to the stability of surrounding rock (surface subsidence, arch settlement, distribution of surrounding rock plastic zone). The results show that the surface and arch settlement are sensitive to the depth of the tunnel and less sensitive to the angle of bias, and the area of the plastic zone of surrounding rock is more sensitive to the angle of bias than the depth of the tunnel. The research results have certain guiding value for the design and construction of shallow tunnel.
【作者单位】：山东科技大学资源与土木工程系;安徽理工大学煤矿安全高效开采省部共建教育部重点实验室;
【基金】：国家自然科学基金项目(51409154) 山东科技大学杰出青年科技人才支持计划项目(2015JQJH106) 山东省高等学校科技计划项目(J16LG03) 煤矿安全高效开采省部共建教育部重点实验室开放基金资助项目(JYBSYS2015104) 泰安市科技发展计划项目(201630576)
【分类号】：U451.2

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