Mechanism of evolution of stress-structure controlled collapse of surrounding rock in caverns: A case study from the Baihetan hydropower station in China
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- 作者：Ya-Xun Xiao ; Xia-Ting Feng ; xtfeng@whrsm.ac.cn" class="auth_mail" title="E-mail the corresponding author ; xia.ting.feng@gmail.com" class="auth_mail" title="E-mail the corresponding author ; Guang-Liang Feng ; Hua-Ji Liu ; Quan Jiang ; Shi-Li Qiu
- 关键词：Rock mechanics ; Stress&ndash ; structure controlled collapse ; Microseismic monitoring ; Mechanism of collapse evolution ; Baihetan hydropower station
- 刊名：Tunnelling and Underground Space Technology
- 出版年：2016
- 出版时间：January 2016
- 年：2016
- 卷：51
- 期：Complete
- 页码：56-67
- 全文大小：3217 K
文摘
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Spatiotemporal features of stress–structure controlled collapse are presented.
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A typical collapse is investigated by field survey, SEM and MS monitoring.
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Rock mass fracturing events are mostly tensile during this kind of collapse.
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MS monitoring can play an important role for the warning of this kind of collapse.