Temporal and spatial distribution of microfractures in granites of different structures under triaxial compression and its significance in seismology

作     者：Liqiang Liu Shengli Ma Jin Ma Xinglin Lei K. Kusunose O. Nishizawa L. Jouniaux 

作者机构：China Seismol Bur Inst Geol Beijing 100029 Peoples R China Geol Survey Japan Tsukuba Ibaraki 305 Japan Ecole Normale Super Geol Lab F-75231 Paris France CNRS URA 1316 Paris France 

出 版 物：《Chinese Science Bulletin》 (科学通报(英文版))

年 卷 期：1999年第44卷第14期

页      面：1321-1325页

核心收录：

学科分类：070801[理学-固体地球物理学] 07[理学] 0708[理学-地球物理学] 

基　　金：95-04-06 British Geological Survey,BGS 

主　　题：rock structure acoustic emission microfracturing temporal and spatial distribution seismicity. 

摘      要：The temporal and spatial distribution of microfracturing activity in two kinds of granite under triaxial compression has been studied by using a new acoustic emission system. For Inada granite, there is no clear clustering of acoustic emission events in time and space, thus it is difficult to exactly deduce the time and position of the major fracturing. While for Mayet granite,acoustic emission events are clustered in time and space, so the time and position of the major fracturing can be exactly predicted according to microfracturing process. Such a difference may result from the difference in deformation mode caused by different rock structures.