SIZE EFFECT ON SHEAR STRENGTH OF BASALT ROCK MASS WITH COLUMNAR JOINTS
SIZE EFFECT ON SHEAR STRENGTH OF BASALT ROCK MASS WITH COLUMNAR JOINTS
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发表时间：
2009
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通讯作者：
Liu Shungui
中科院分区：
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作者：
Liu Shungui
本文是基于在-本文对玄武岩柱状节理岩体进行了现场和室内直接试验，拟合了玄武岩柱状节理岩体的异速生长曲线，得到了玄武岩柱状节理岩体抗剪强度的经验公式。分析表明，玄武岩柱状节理岩体的粘聚力c和内摩擦系数f随试样尺寸的变化近似呈幂函数关系，具有代表性的粘聚力c和内摩擦系数f随试样尺寸的增大而增大，粘聚力c和分析了c和f的基元体积，表明内聚力对样品的尺寸更为敏感。
This paper is based on the results of in-situ and laboratory direct tests of basalt rock mass with columnar joints.Allometric curves are fitted with the test data and empirical formulas are obtained about the shear strength of the basalt rock mass with columnar joints.The analysis shows that the values of the cohesion c and the internal frictional coefficient f vary approximately with the size of test samples as power functions.The representative elementary volumes of the c and f are analyzed.The cohesive force is more sensitive to the size of samples.