摘要
用高强度白水泥及石膏等类岩材料有序多裂纹模型进行了大量单向加压实验，得出了单压时宏观等效强度σｅ，等效弹性模量Ｅｅ及泊松比μｅ随裂纹群倾角α的变化规律．在一定程度上考虑了裂纹密度对宏观力学性能的影响．综合实验结果与理论分析，给出了多裂纹体强度特征曲线σｅ－α．
A large number of experiments, research on the effects of regular cracks to macro-mechanical properties in rock like materials, such as high strength gypsum and white cement, under uniaxial compression are conducted. The experimental relationships of the macro-equivalent strength σe, elastic modulus Ee and passion's ratio μe versus the inclined angle of cracks α are obtained. The specificity curve of σe-α, also de- pending on cracks density h, for multi-crack body is given by the analysis of experimental and theoretical re- sults. The data and conclusion will be useful for mining industry and some other underground engineering.
出处
《北京科技大学学报》
EI
CAS
CSCD
北大核心
2001年第3期199-203,共5页
Journal of University of Science and Technology Beijing
基金
国家自然科学基金资助课题(No.49772090)
