铀矿地质2013，Vol.29Issue(2)：123-128,6.DOI:10.3969/j.issn.1000-0658.2013.02.010
北山花岗岩三轴压缩条件下声发射特性研究
Study on Acoustic Emission Characteristics of Beishan Granite Under Triaxial Compression Conditions
摘要
Abstract
Beishan granite is the candidate host rock of China's high-level radioactive waste repository. Compression tests with different confining stresses in combination with acoustic emission (AE) monitoring technique are used to study the strength and failure mechanism of granite in the depth of Xinchang pluton of Beishan area, Gansu province. The variation characteristics of the acoustic emission parameters during rock failure were investigated. The characteristic stress thresholds associated with crack initiation, crack damage and peak strength envelops at different fracturing stages of rocks were obtained. The presented study has provided preconditions and mechanical parameters for establishing the failure criterion and further stability analysis of underground engineering. 关键词
北山花岗岩/强度/声发射Key words
Beishan granite/ strength/ acoustic emission分类
建筑与水利引用本文复制引用
宗自华,马利科,高敏,田霄..北山花岗岩三轴压缩条件下声发射特性研究[J].铀矿地质,2013,29(2):123-128,6.
