RQD

Study on applying broad sense RQD to anisotropy of rock mass

广义RQD在岩体各向异性中的应用研究

Study on Application of 3D network of discontinuities to RQD

不连续面三维网络在RQD中的应用研究

RQD value and broken rock mass strength was resolved .

RQD值对破碎岩体强度的影响。

Analysis and Calculation of Reasonable Selection of RQD AND Vp

RQD和Vp合理取值分析与计算

Couple of complemental rock quality evaluation charts to RQD value

补充RQD值的几类岩体质量评价图

A research on RQD of Railway Rock Slope

铁路岩质边坡的RQD研究

Based on the defects of traditional RQD concept , by introducing the concept of3D V.

在传统RQD值不足的基础上，引入不同阈值下的三维体积V。

RQD value , one of the rock quality indices , may become a new and practical way to accurately estimate the strength of broken rock mass .

RQD值作为岩体质量指标之一，可为破碎岩体的强度估计提供新的实用途径。

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。

In which the glaring point is of the importance of the rock discontinuities network simulation analysis to confirm RQD value in evaluation , the quantitative analysis of RQD value being resolved .

在这一系统中，突出了岩体结构面网络模拟分析在评价中对确定RQD值的重要性，解决了RQD值的定量分析。

Ock quality designation ( RQD ) is one of the most important quantitative indices on estimating and classifying engineering rock mass , and its concept and theory have been developed significantly during last thirty years .

岩石质量指标RQD是岩体工程分类和稳定性评价中最常用的定量描述参数。30多年来，RQD的概念和理论研究有了重大进展。

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。

Five influence factors , such as uniaxial compressive strength of rock , RQD , compressive strength of coal mass , hydrological condition of roof , and advance velocity of stope , are adoped in the classification .

本分类方案选用了5个指标，即岩石单轴抗压强度sc、岩石质量指标RQD、煤体抗压强度scm、地下水状况SW和工作面月推进速度。

In aspect of quantitative division , synthetically apply the test achievement of RQD and rebounding test , radon survey , acoustic wave test results etc. ( 5 ) By summarizing the main factors which impact the rock mass quality .

在定量划分方面，综合应用了RQD、回弹值、氡气及声波波速测试成果。（5）归纳和提取影响坝址区岩体质量级别的主要因素。

For most rock masses in the nature the mean value of RQD , rock quality percentage ( RQP ) and rock quality risk ( RQR ) can be read off from the rock quality description charts plotted in this paper .

对于自然界大部分岩体，可根据结构面间距统计参数，直接在本文得出的一系列岩石质量图上定出RQD平均值、岩石质量百分比（RQP）及岩石质量风险（RQR）。

According to the basic principles of Bieniawski 's geotechnics rock classification , a classification of stope stability is established on the basis of five parameters , i.e. unia-xial compressive strength , RQD , joint spacing , joint state and underground water conditions .

本文根据Bieniawski的地质力学岩体分类法的基本原理，基于岩石的单轴抗压强度、RQD、节理间距、节理状态和地下水条件等五个参数，定出一种采场稳定性分类方法。

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。

Examination holes of shafts are undev construction , immersion tests and measurement of RQD value are not generally made presently but the author thinks that it is necessary to determine the core correctly , make immersion test , calculate RQD value , and test compression strength for rock .

目前施工井筒检查孔时，不进行浸水试验、RQD值的测定.本文认为：在施工井筒检查孔时，就必须正确鉴定岩芯，进行浸水试验，计算RQD值及测试岩石单轴抗压强度值。