深埋隧洞施工期围岩变形与应力分析及稳定性评价

大坝与安全 ›› 2014 ›› Issue (2): 35-41.

深埋隧洞施工期围岩变形与应力分析及稳定性评价

杨发栋

华东勘测设计研究院有限公司，浙江杭州，310014

收稿日期:2013-12-23 出版日期:2014-04-30 发布日期:2014-04-30
作者简介:杨发栋（1980- ），男，工程师，主要从事水电水利工程设计工作。

Deformation, stress analysis and stability evaluation of the surrounding rock of the deep-buried tunnel during construction

YANG Fa-dong

Huadong Engineering Corporation

Received:2013-12-23 Online:2014-04-30 Published:2014-04-30

摘要/Abstract

摘要： 通过现场原位多种监测仪器的预埋对大直径TBM法和钻爆法开挖的洞段进行监测，综合分析围岩变形及应力监测成果，深入剖析深埋脆性大理岩在开挖过程中围岩变形及应力调整的特征，把握TBM法和钻爆法两种不同施工方法在不同围岩类别条件下引起的围岩松弛深度及围岩破坏特性，对进一步了解深埋脆性大理岩的物理特性和洞室开挖围岩响应规律具有重要意义。

关键词: 深埋隧洞, TBM法, 钻爆法, 围岩变形, 应力监测, 松弛深度, 稳定性评价

Abstract: By embedded monitoring instruments, monitoring of tunnel section excavated by TBM method and drilling and blasting method was carried out. By analysis of the monitoring results, insight into the deformation and stress adjustment of the brittle marble during excavation was got. As well, the relaxation depth and failure characteristics caused by TBM method and drilling and blasting method to different rock type were obtained. These were of great meaning to understand the physical characteristics of the deep-buried brittle marble and response pattern of the surrounding rock in excavation.

Key words: deep-buried tunnel, TBM method, drilling and blasting method, deformation of surrounding rock, stress monitoring, relaxation depth, stability evaluation

杨发栋. 深埋隧洞施工期围岩变形与应力分析及稳定性评价[J]. 大坝与安全, 2014, 0(2): 35-41.

YANG Fa-dong. Deformation, stress analysis and stability evaluation of the surrounding rock of the deep-buried tunnel during construction[J]. dam, 2014, 0(2): 35-41.

[1]	黄先发. 软基筑坝监测体系及整体稳定性评价[J]. 大坝与安全, 2013, 0(5): 17-21.
[2]	文豪，李先能. 瀑布沟水电站放空洞施工期监测及围岩变形特征[J]. , 2008, 0(6): 40-43.
[3]	张晨，由静. 光纤布拉格光栅隧道应力应变监测系统[J]. , 2008, 0(4): 31-33.
[4]	周扬. 三峡地下电站主厂房施工期围岩变形性态分析[J]. , 2008, 0(2): 33-36.