节理抗剪强度综合评价的试验研究  

A COMPREHENSIVE EXPERIMENTAL EVALUATION OF ROCK JOINT SHEAR STRENGTH

作　　者：杜时贵[1] 胡晓飞[1] 罗战友[2] 梁晓丹[3] 姜健[3] 

机构地区：[1]浙江师范大学 [2]浙江科技学院,杭州310032 [3]浙江建设职业技术学院,杭州311231

出　　处：《工程地质学报》2008年第1期89-97,共9页Journal of Engineering Geology

基　　金：国家自然科学基金(40672186);浙江省自然科学基金(Y50508);浙江省重大科技专项基金(2006C11128)

摘　　要：选取不同吻合度自然节理试样,进行干燥状态和饱和状态的JRC-JCS模型和JRC-JMS模型试验研究。结果表明,在节理粗糙度系数的定向统计测量和尺寸效应分析,以及剪切过程衰减折减的基础上,运用JRC-JCS模型综合评价节理抗剪强度可靠性较好,考虑吻合度系数的JRC-JMC模型比JRC-JCS模型具更好的预测能力。This paper presents a comprehensive experimental evaluation of rock joint shear strength. The test specimens are natural rock joints and have differential anastomotic degrees. The paper presents the tests for the JRC - JCS model and the JRC - JMS model in drying and saturated conditions. The test results show that the comprehensive evaluation of rock joint shear strength by the JRC - JCS model has a good reliability on the bases of the directional statistical measurement, the analysis of JRC scale effect, as well as the consideration of reduced JRC during shearing. The JRC - JMC model considering anastomotic degree can better predict the rock joint shear strength than the JRC -JCS model.

关 键 词：节理抗剪强度 综合评价 粗糙度系数(JRC) 试验研究 

分 类 号：P642[天文地球—工程地质学]