【摘要】 本文回顾了岩体结构面粗糙度系数ＪＲＣ的研究成果，分析了各种ＪＲＣ研究方法的应用范围。在野外实际结构面形态的详细调查和深入研究的基础上，发展了Ｂａｒｔｏｎ直边法，并提出按岩性定向统计研究结构面粗糙度系数ＪＲＣ的科学思想。更多还原

【Abstract】 In the paper,firstly ,we review the database used in studying joint roughness coefficient(JRC)in rock mass and analyze of various methods appliied evaluation JRC.Then,basing on the detailed survey and study of in-situ joint surface profiles,we develope a Barton’s straight edge method for evaluating JRC.At last,we put forward a new scientific way for directive statistical evaluation of JRC in the light of rock properties.更多还原