岩石表面形态的各向异性及其摩擦特性研究

英文篇名：Research on Friction Properties and Anisotropy of Broken Rock Surface
中文刊名：采矿与安全工程学报
英文刊名：Journal of Mining & Safety Engineering
作者：何满潮 ; 胡江春 ; 王红芳
英文作者：HE Man-chao~1 ; HU Jiang-chun~(1 ; 2) ; WANG Hong-fang~2(1.School of Mechanics & Architecture Engineering ; China University of Mining & Technology ; Beijing 100083 ; China ; 2.School of Energy & Environmental Engineering ; Zhongyuan University of Technology ; Zhengzhou ; Henan 450007 ; China)
中文关键词：摩擦试验 ; 表面形态 ; 各向异性
英文关键词：friction test ; topography character ; anisotropy dependence
出版日期：2006-06-30
机构：中国矿业大学力学与建筑工程学院,中国矿业大学力学与建筑工程学院,中原工学院能源与环境学院北京100083,北京100083,中原工学院能源与环境学院,河南郑州450007,河南郑州450007
年：2006
期：02
出版单位：采矿与安全工程学报

摘要

岩体的力学性质取决于岩块的强度、岩块的表面形态和岩块的几何组合结构,通过对砂岩、泥岩破裂面及其互层接触的摩擦试验,分析了不同接触面的剪应力-位移变化规律,提取了摩擦试验中样品的表面形态参数,研究了砂岩、泥岩在摩擦前后破裂面表面形态的变化,分析了它们的粗糙度及其起伏特性在摩擦前后的变化规律,研究了岩石表面形态的各向异性和岩石摩擦强度的关系.结果表明:岩石破裂面的力学行为具有各向异性特征,而这种特征不但取决于破裂面的空间形貌,即破裂面形貌自身的各向异性,而且还和摩擦面相对移动的方向有关.
The mechanics properties of rock mass are decided by the strength,the surface form,and the geometric combination of rock blocks.The friction test between broken surfaces of sandstone and mudstone was performed,shear stress and displacements of different contact surfaces analyzed,and parameters of surface form extracted.In addition,the variation rule of roughness before and after the friction was also analyzed and the relationship between anisotropy and friction strength of the rock surface researched.The result shows that the mechanics behavior of the broken rock surface is characterized by its anisotropy,which is related not only to the surface form of the rock block but also to the direction of relative movement of the friction surfaces.

引文

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