一、前言地质力学模型试验,是研究复杂地基破坏稳定、拱坝坝肩稳定、大跨发地下洞室、隧道以及高边坡稳定等问题的一项新的试验技术。它是根据建筑物的具体工程地质条件(如断层、裂隙破碎带、泥化夹层、构造面等)和岩体的力学变形性能,用来研究基岩对上部建筑物以及基岩内部由弹性至弹塑性、直至破坏失 I. INTRODUCTION The geomechanical model test is a new experimental technique for studying the failure of complex foundations, the stability of arch dam abutments, the caverns in large spans, the stability of tunnels and high slopes. It is based on the specific engineering geological conditions of the building (such as faults, fractured fractures, muddy intercalations, structural planes, etc.) and mechanical deformation of rock mass, used to study the bedrock of the upper buildings and bedrock from elastic to Elasto-plastic, until the destruction of loss