rock quality designation

Computer simulation of rock quality designation and its risk analysis

岩石质量指标的计算机模拟及其风险分析

A Monte-Carlo simulation method of rock quality designation ( RQD ) is presented in this paper based on the negative exponential distribution and lognormal distribution for modeling the discontinuity spacings .

本文针对岩体结构面间距最常见的两种分布形式&负指数分布和对数正态分布，探讨了岩石质量指标（RQD）的Monte-Carlo模拟方法。

The Rock Quality Designation ( RQD ) is one of significant parameters used to evaluate the behaviour of engineering rock mass , which is a function of set number , amount , orientation , spacing and sampling direction of fractures .

岩体质量指标（RQD）是工程岩体性态评价的重要参考数之一。RQD为裂隙组数、裂隙数目、方位、间距及取样方向的函数。

In the paper , through analysing the sensitivity of spacing , dip angle , included angle , and the number of joint sets versus anisotropy of rock quality designation , some anisotropic patterns of rock quality designation are discussed using net simulation of joints .

本文运用结构面网络模拟技术，通过结构面间距、倾角、相对夹角以及结构面组数的敏感性分析，探讨了RQD的各向异性规律。

The characteristics of rock mass structures are studied through the network simulation of discontinuities . Then sliding plane searching can be done through connective networks of discontinuities ; rock mass can be classified and intension of rock mass can be evaluated by rock quality designation ( RQD ) .

通过结构面网络模拟研究滑坡的岩体结构特征，进而利用岩体质量指标（RQD）进行岩体分类、估计岩体强度。