近些年来,岩石质量指标RQD(Rock Quality Designation)在国外已被广泛应用,但在我国工程地质勘察及地基设计规范中很少反映这一定量评价岩体结构及其稳定性的指标。本文拟简要介绍一下这方面的应用体会。以往对岩石的工程地质定量评价一般均直接引用室内试样的物理力学试验指标,但这与野外岩体的客观实际相差甚远。为了得 In recent years, Rock Quality Designation (RQD) has been widely used in foreign countries. However, in China’s engineering geological survey and foundation design specifications, this quantitative evaluation of rock mass structure and its stability index are rarely reflected. This article will briefly introduce the application experience in this area. In the past, quantitative evaluation of rock engineering geology generally directly quoted the physical and mechanical test indicators of the indoor samples, but this is far from the actual objective of the field rock mass. For the sake of