金川露天矿边坡岩体移动和变形的光弹性软材料模拟实验研究

MODEL EXPERIMENT ON DISPLACEMENT AND DEFORMATION OF ROCK MASS ON THE SLOPES OF JINCHUAN OPEN MINE PIT WITH PHOTOELASTIC SOFT MATERIALS

通过对边坡岩体破坏机理的光弹性力学模拟实验研究，岩体在地应力作用和自重体积力作用下，对露天矿边坡的力学状态具有明显地影响。实验采用了明胶软材料，模型比例１：１１００。实验模拟了在自重应力和构造应力作用下，边坡岩体的位移和变形。

The experiment of photoelastic mechanical model for failure mechanism of slope rock mass shows that the mining operation in the open pit has evident effect on the mechanical state of pit slopes by the action of stress and volume weight of the rock mass. Gelatin was used in the experiment. The model was designed on a scale 1∶1100. The displacement and deformation of the slope rock mass were modeled under the effect of self weight stress and tectonic stress. Then the failure mechanism for deformation of the rock mass by the effect of two stresses are discussed from the experiment result.