中文摘要：

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。

英文摘要：

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.