硬性结构面粗糙度系数量化确定及其工程应用  

Quantization research and project application of roughness coefficient of a rigid structure plane

作　　者：吉锋[1] 

机构地区：[1]成都理工大学地质灾害防治与地质环境保护国家重点实验室,成都610059

出　　处：《水文地质工程地质》2010年第3期84-86,101,共4页Hydrogeology & Engineering Geology

摘　　要：本文通过对硬性节理表面粗糙度系数JRC量化确定的研究,对包括Barton推荐标准曲线在内的大量结构面起伏曲线矢量化分析,利用期望值的概念反映结构面起伏曲线粗糙度JRC,建立JRC与起伏曲线高度、坡度两个因素的经验公式,为Barton理论公式法快速预测结构面参数提供了充足条件,并用理论公式法预测成果与试验成果进行对比分析。The theoretical formula method is an important and effective method in intensity parameter research. The JRC-JCS method of Barton is one of the most frequently used method. However,the results of the Barton method vary with each individual since it is influenced by the roughness coefficient JRC and it is difficult in quantization. Through the quantitative analysis of JRC,a large number of structure undulating curve and tandard curve that Barton recommends is analyzed with the vector,and the concept of expected value to reflect the roughness JRC of undulating curve of the structure plane is utilized. Empirical formula on JRC value and height and slope of the undulating curve is set up,thus sufficient conditions in predicting intensity parameter of theoretical formula method are offered. The prediction achievement of the theoretical formula method and test achievement are compared and analyzed.

关 键 词：硬性结构面 粗糙度系数 量化确定 工程应用 

分 类 号：TU457[建筑科学—岩土工程]