Rockmass damage development following two extremely intense rockbursts in deep tunnels at Jinping II hydropower station, southwestern China
Rockmass damage development following two extremely intense rockbursts in deep tunnels at Jinping II hydropower station, southwestern China
复制标题
锦屏二级水电站深埋隧道两次特大岩爆后岩体破坏发展
DOI：
10.1007/s10064-013-0470-y
复制
发表时间：
2013-03
影响因子：
4.2
通讯作者：
Wu, Wenping
中科院分区：
文献类型：
--
作者：
Zhang, Chuanqing;Feng, Xia-Ting;Zhou, Hui;Qiu, Shili;Wu, Wenping
在中国西南部锦屏二级水电站排水隧洞和引水4号洞开挖过程中，发生了两次极强烈的岩爆。对冲击地压发生地段围岩的地质条件、损伤和破坏进行了调查和描述，重点介绍了岩爆对围岩的损伤发展和发生机理。采用了基于粘聚力弱化和摩擦强化模型的数值方法，并采用了破坏逼近指数和局部能量释放率等指标。研究结果有助于我们了解冲击地压的产生和发展过程，评价岩体的破坏程度。这些信息对深埋隧道防岩爆措施的研究和设计具有一定的参考价值。
Two extremely intense rockbursts took place during the excavation of the drainage tunnel and headrace tunnel No. 4 at the Jinping II hydropower station in southwestern China. The geological conditions, damage, and failure of the surrounding rock mass at the sections where the rockbursts occurred were surveyed and are described here with a focus on the development of the damage to the rock mass and the mechanism by which it occurred. The numerical method based on the Cohesion Weakening and Friction Strengthening model and various indices, including the failure approaching index and the local energy release rate, were adapted for these purposes. The results shown here may help us understand the generation and process of development of rockbursts and evaluate the degree of failure in the rockmass. This information may be valuable in the study and design of rockburst-resistant measures in deep tunnels.
登录
查看更多内容
影响因子：
7.4
作者：
C. Tang;W. Yang;Yun-ta Fu;X. Xu
通讯作者：
C. Tang;W. Yang;Yun-ta Fu;X. Xu
DOI：
10.1016/s1006-1266(07)60144-8
发表时间：
2007-12
期刊：
Journal of China University of Mining and Technology
影响因子：
--
作者：
SUN Jin-shan;ZHU Qi-hu;LU Wen-bo
通讯作者：
LU Wen-bo
影响因子：
6.2
作者：
A. Zubelewicz;Z. Mroz
通讯作者：
A. Zubelewicz;Z. Mroz
DOI：
10.1016/0148-9062(85)92155-2
发表时间：
1985-05
期刊：
--
影响因子：
--
作者：
B. Brady;E. T. Brown
通讯作者：
B. Brady;E. T. Brown
DOI：
--
发表时间：
1996
期刊：
--
影响因子：
--
作者：
M. Board
通讯作者：
M. Board