河南理工大学学报（自然科学版）2026，Vol.45Issue(4)：123-130,8.DOI:10.16186/j.cnki.1673-9787.2025120077
多种加载条件下致密岩石变形参数统一性的理论分析与试验研究
Theoretical analysis and experimental study on the consistency of intact rock deformation parameters under various loading conditions
摘要
Abstract
Objectives To investigate the consistency of intact rock deformation parameters under various loading conditions,a study was conducted based on the generalized Hooke's Law.Methods Through theo-retical derivation and laboratory tests,the characteristics of rock elastic modulus and Poisson's ratio were systematically analyzed under three loading conditions:triaxial compression(three-dimensional stress),Brazilian disc splitting(two-dimensional stress),and uniaxial compression(one-dimensional stress).Re-sults The results indicated that the elastic moduli measured by the three loading methods exhibited high consistency.Compared with the uniaxial compression reference,the relative errors of both triaxial compres-sion and Brazilian disc tests were within 6.1%.It was quantitatively verified that the deformation param-eters of intact rock are material constants independent of geometric shape and stress state.In uniaxial com-pression tests,the method for determining the elastic modulus depended on the calculation approach due to the non-linear characteristics of the stress-strain curve.In contrast,such method-dependent behavior was avoided in triaxial compression and Brazilian disc tests,which yielded more stable results.Furthermore,the consistency of elastic modulus and Poisson's ratio measured by cylindrical and rectangular specimens was demonstrated.This characteristic was attributed not only to the elastic nature of the rock but also to the ma-terial geometry and testing theory.Conclusions These findings provide a basis for the rational selection of rock mechanics parameter testing methods.关键词
岩石力学/单轴压缩/三轴压缩/巴西盘/弹性模量Key words
rock mechanics/uniaxial compression/triaxial compression/Brazilian disc/elastic modulus分类
矿业与冶金引用本文复制引用
魏炯..多种加载条件下致密岩石变形参数统一性的理论分析与试验研究[J].河南理工大学学报（自然科学版）,2026,45(4):123-130,8.基金项目
国家自然科学基金资助项目(52304137) （52304137）
煤炭重大专项项目(2025ZD1700904) （2025ZD1700904）
