黑龙江科技大学学报2025，Vol.35Issue(2)：186-192,7.DOI:10.3969/j.issn.2095-7262.2025.02.003
软硬互层组合岩体协同变形特征实验研究
Experimental study on cooperative deformation characteristics behind soft and hard interbedded combined rock mass
摘要
Abstract
This paper aims to investigate the deformation characteristics behind soft and hard interbed-ded rock mass.The study conducts uniaxial compression deformation experiments of soft and hard combined rock samples in different combination forms.By collecting the stress data of rock samples during loading to fracture and the deformation data of stratified rock samples,the stress and strain characteristics of the com-bined rock samples are analyzed.The results show that the strength of the combined rock mass is in the middle of the strength of the soft rock and the hard rock,which is slightly greater than the soft rock and far less than the hard rock.The elastic modulus and ultimate strength of composite rock mass are consistent each other.And the higher the proportion of hard rock is,the greater the elastic modulus and ultimate strength are.In the strong linear deviation stage,the radial strain of mudstone layer decreases,and the ra-dial strain of sandstone layer increases,which presents the most obvious synergistic effect in this stage.In the composite rock sample,the sand stratum inhibits the radial deformation of mudstone layer.With the in-crease of sandstone proportion,the radial deformation of mudstone decreases.Similarly,with the increase of the mudstone proportion,the radial deformation of sandstone layer can increase.关键词
互层岩体/单轴压缩/应力-应变/协同变形Key words
interbedded rock mass/uniaxial compression/stress-strain/codeformation分类
矿业与冶金引用本文复制引用
侯志远,李昊,肖福坤,刘刚,张师浩..软硬互层组合岩体协同变形特征实验研究[J].黑龙江科技大学学报,2025,35(2):186-192,7.基金项目
黑龙江省自然科学基金重点项目(ZD2021E006) （ZD2021E006）
