摘要
节理化岩体强度与力学参数可根据Hoek-Brown准则进行估计。然而,推广之后的Hoek-Brown准则确定地质强度指标GSI时对岩体结构的划分缺乏定量的描述。当评价大体积节理化岩体的地质强度指标GSI时,为使大体积节理化岩体结构的描述定量化,引入Jv(节理数/m3)。通过算例,说明了应用这一方法的具体过程,这为大体积节理化岩体强度与力学参数的估计提供了新的简便、经济、实用的方法。
The strength and mechanical parameters of large-volume jointed rockmass can be estimated by using Hoek-Brown criterion. The criterion has been generalized over the years,and the geological strength index(GSI) was introduced into the criterion by its originator. However,the quantitative description in structure of jointed rockmass is lacking,that leads to rough estimation of GSI values. In order to provide a more quantitative description in structure of large-volume jointed rockmass for evaluating GSI,modification of GSI is suggested by introducing parameter Jv (joint number / m3) with a computation example. The proposed method provides a new,economical and practical avenue for estimation on strength and mechanical parameters of large-volume jointed rockmass.
出处
《岩石力学与工程学报》
EI
CAS
CSCD
北大核心
2004年第5期777-780,共4页
Chinese Journal of Rock Mechanics and Engineering
基金
太原理工大学"211"校长基金(100216)资助项目。
关键词
岩石力学
大体积节理化岩体
岩体结构
地质强度
rock mechanics,large-volume jointed rockmass,strength and mechanical parameter,geological strength index GSI,Jv,modification
