中文摘要：

为了探究岩体内部裂隙的扩展破坏过程,本文研制出一种新型透明类岩石材料,在内部预制裂隙进行单轴压缩试验。试验详细观察了预制裂隙试件完全破坏总过程,分析总结了裂纹扩展的每个阶段所呈现出来的特点和规律,研究了不同长度裂隙对试件基本物理力学参数的影响,得出了裂隙长度越大,试件的单轴抗压强度和弹性模量都越低的结论。

英文摘要：

A new kind of transparent rock -like materials was developed for studying crack propaga- tion inside instated of rail rock. It that have artificially induced internal cracks was tested under uni- axial compression. This experiment observed the compIetely destroyed, analyzed each stage of the carefully and summarized the law of pre - crack overall process of the pre- test specimens fractured presentation of the crack propagation characteristics damage the specimen. The experiment studied the effect of different lengths of fissure on basic physical and mechanical parameters ; obtained the greater the crack length, uniaxial compressive strength and elastic modulus of the specimen are lower conclu- sions. These studies have important guidance for the early warning of geotechnical engineering works.