岩石微空隙与损伤演化研究

Study on Micropores Evolution and Loading Experiment for Stratified composite Rock

研究了层状复合岩石微结构及微空隙形成,利用电镜观察分析了它们的结构特征。在此基础上讨论了微空隙的扩展和演化率,以及损伤本构关系。计算与加载实验表明,微空隙及其扩展演化对岩石的应力变化关系极大,理论计算值与实测值比较接近。

The formation on Microstructure and micropore of Stratified Composite Rock are researched, their structure characteristics are analyses by means of SEM, The evolution regularity of microproe and constitutive relation of rock damage are discussed. The calculation and loading experiment show that the stress change of the rock has a direct bearing on the micropores and their evolution. The theoretical value calculated is close to the value measured.