维普中文期刊产品整合服务

Comprehensive safety evaluation method of surrounding rock during underground cavern construction

查看全文 作　　者：Qingwen [1]Ren;Lei [2]Xu;Aixi [3]Zhu;Mingzhang [4]Shan;Linfei [2]Zhang;Jiafeng [2]Gu;Lei [1]Shen 高影响力作者 机构地区：[1]College of Mechanics and Materials,Hohai University,Nanjing 210098,China;[2]College of Water Conservancy and Hydropower Engineering,Hohai University,Nanjing 210098,China;[3]Shanghai Tongyan Civil Engineering Technology Co.Ltd.,China;[4]China Resources Land Ltd.,Weihai,China高影响力机构 出　　处：《Underground Space》索引2021年第6卷第1期,共16页高影响力期刊 基　　金：The research presented in this paper was supported by the National Nature Science Foundation of China(Grant Nos.51739006 and U1765204). 摘　　要：The deformation instability of surrounding rock and the collapse of rock blocks are two common failure modes observed during the construction of underground caverns.Therefore,a comprehensive safety evaluation method(CSEM)of surrounding rock for application during underground cavern construction is presented in this paper.The method can be used to evaluate the deformation stability of surrounding rock and predict the collapse of rock blocks,rapidly.First,a deformation stability prediction and evaluation method(DSPEM)for rock mass is established.It combines the safety evaluation method based on a deformation statistical analysis and an inverse deformation prediction method using measured deformation data of surrounding rock.This approach possesses the unique characteristics of complementary and mutual verification.In addition,a comprehensive early-warning index system(CWIS)for assessing the deformation stability of surrounding rock is presented.It consists of three types of warning indicators and three levels of warning values.The earlywarning values can be adjusted reasonably by the prediction correction method according to the measured displacements.For the collapse of rock blocks controlled by structural surfaces,a rapid prediction method of rock block collapse(RPMBC)based on the block theory is then presented.Finally,combining the DSPEM,RPMBC,and CWIS,the CSEM of surrounding rock for assessing the safety of cavern construction is established.It can provide technical support for decision making on the safety of surrounding rock during the construction of underground caverns. 关 键 词：Underground cavern Rock mass Safety evaluation during construction Early warning system
相关文献

参考文献(16)

引证文献(4)

网站首页 | 关于我们 | 联系我们 | 产品服务 | 客服中心 | 广告服务 | 版权声明 | 网站联盟 | 友情链接 | 售卡网点

版权所有© 渝B2-20050021-1　渝公网安备 50019002500403号　违法和不良信息举报中心

互联网出版许可证 新出网证(渝)字10号 全国400电话 - 免长途话费