地下洞群围岩稳定的试验研究

本文采用模型试验的方法．研究地下洞群围岩稳定的问题．模型使用一种特制的新型地质力学模型材料，它基本上满足模型与原型全相似的要求．由于采用这种材料，使得模型加载装置得以轻型化．试验通过平面应变和三维两种破坏模型进行．平面应变模型为立式的．试验成果与相应计算成果很相接近．

Test Research for the Surrounding Rock Stabnity of Underground Qpenings

The model test method is used to study the surroundins rock stability of underground openings.A spccial new type of gcomcchanical model material which basically satisfies the requirements of the edcl fully sindfor to the prototype is used for model test. Adopting tabs spccial matcrial gives the debility of making the led sets of model much lighter.Two kinds of destructive model tests,planar strain and three-dimensional failure tests,have ben made.The planar strain model is an upright one.The testing results are very close to those obtained from the three-dimensional computation.