中文摘要：

以便确定连接岩石的表面的特征集体、新设备，三维的激光表面地形学仪器，被用来精确地测量关节的表面形态学。扫描图画和参数被获得例如，描述岩石关节表面特征表面的高度频率，和平均数摆平粗糙。用分数维的尺寸的方法，联合粗糙系数(JRC ) 的价值基于上述参数被计算。它能存取到特征的主要参数的联合表面岩石样品形态学。最大的山峰高度是在测试关节飞机的 2.692 公里。最大的侧面高度是 4.408 公里。JRC 价值由分数维的尺寸计算是 6.38。它属于光滑的联合表面。它是的结果表演一种有效方法到份量上由三维的激光表面地形学仪器和分数维的尺寸方法评估表面地形学。根据结果，在地下的大规模采矿的过程期间，阻止的安全措施由控制表面紧张滑动联合飞机的失败并且砍机械反应被建议。

英文摘要：

In order to quantify the characteristics of the surface of jointed rock mass, new equipment, the three-dimensional laser surface topography instrument, was used to accurately measure surface morphology of joints. Scan pictures and parameters were obtained to describe the rock joint surface characteristics, for example, the height frequency of surface, and mean square roughness. Using the method of fractal dimension, the values of joint roughness coefficient （JRC） were calculated based on the above parameters. It could access to the joint surface rock sample morphology of the main parameters of characteristic. The maximum peak height is 2.692 mm in the test joint plane. The maximum profile height is 4.408 mm. JRC value is 6.38 by fractal dimension computing. It belongs to the smooth joint surface. The results show that it is a kind of the effective method to quantitatively evaluate the surface topography by the three-dimensional laser surface topography instrument and the fractal dimension method. According to the results, during the process of underground large-scale mining, safe measures to prevent slip failure of the joint plane by controlling surface tension and shear mechanical response were proposed.