太原理工大学学报Issue(6)：672-679,8.DOI:10.16355/j.cnki.issn1007-9432tyut.2015.06.008
天然岩石单轴压裂过程磁组构响应实验研究
A Laboratory Research on Magnetic Fabric Response of Natural Rock Samples in the Process of Uniaxial Compression to Rupture
摘要
Abstract
In this paper ,the authors select natural rock samples as research objects ,test and analyze the variation of rock magnetic fabrics at different pressures and its relationship with stress‐strain in laboratory .Meanwhile ,acoustic emission experiments are carried out to monitor the internal micro‐fracture events and deformation process of samples as the pressure increases . The results show that the response of magnetic fabrics on stress‐strain is obvious for igneous rock samples from Xiye rock mass ,in which magnetite is the main magnetic mineral .The responses mainly exhibit the slight enhancement of the degrees of anisotropy of magnetic susceptibility PJ , significant increase of the shape factor T‐value and rapid rotation of susceptibility spindle ,w hich are essentially in agreement with the conclusions drawn from synthetic samples with magnetite as the main magnetic mineral .The results can provide reference and theoretical basis for the further study of the relationship between the magnetic structure and the stress‐strain in the rock and the interpretation of the magnetic structure .关键词
岩石磁学/单轴压裂/磁组构/天然岩石Key words
rock magnetism/uniaxial compression/magnetic fabrics/natural rock分类
天文与地球科学引用本文复制引用
何耀宇,宋选民,李斌,李自红,刘力强..天然岩石单轴压裂过程磁组构响应实验研究[J].太原理工大学学报,2015,(6):672-679,8.基金项目
地震动力学国家重点实验室开放基金资助项目不同温度与压力下岩石磁组构变化特征研究（LED2011B05）；山西省自然科学青年基金资助项目山西太谷断裂带构造应力的初步定量化研究 （）
