组合节理面抗剪力学特性的模型试验研究

本文研究了处于同一平面上的两组性能各异、交替出现的子节理面所组成的组合节理面的抗剪力学性质。通过对脆—脆、脆—塑、塑—塑三种类型的组合节理面的模型抗剪试验,得出了组合节理面的抗剪强度与各单体(又称子节理面)材料在组合节理面上所占的面积、单体交替出现的次数及抗剪方向等之间的关系。这些结论在实际工程应用方面有着非常重要的意义。

Modelling Study on the Mechanical Behaviors of Composite Joints of Rock

Shearing mechanical behaviors of composite joints model with consist of two kinds of different characters of joints and various inter-appearances in one plane have been studied in this paper. After a series of experiments on brittle-brittle, brittle-plastic, plastic-plastic type composite joint models, follow conclusions have been gotten. The shearing strength of composite joints has a relation not only with the area of sub-joints, but also with the times of inter-appearances of two sub-joints(K); and the shearing strength of composite joints has a relation with the shearing direction, that is to say, the shearing deformation-failure of composite joints is gradual. These conclusions are very important and useful for practical engineering.