一、岩体结构与变形特性岩体结构要素包括不连续面和相交节理构成的岩块。贯通的软弱面对岩体变形通常起决定性作用。通过金川矿边坡变形的研究证实了这一点。金川矿矿床赋存于超基性火成岩中,围岩是较古老的(前震旦纪)变质岩系:混合岩、大理岩、片岩等等(图1)。岩层走向与采场的较长边帮平行。由于多次构造运动, First, the rock mass structure and deformation characteristics of rock mass elements include discontinuous surface and intersecting joints constitute rock. Through weakness is usually the decisive role in rock deformation. This is confirmed by the research on the deformation of the slope in Jinchuan Mine. Jinchuan deposit hosted in ultrabasic igneous rocks, the surrounding rock is more ancient (Pre-Sinian) metamorphic rocks: mixed rocks, marble, schist, etc. (Figure 1). Rock formation is parallel to the longer side of the stope. Due to the multiple construction movement,