石英云母片岩各向异性特征多尺度精细化描述

doi:10.13722/j.cnki.jrme.2017.0790

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Abstract The schistosity plane of quartz-mica schist from Danba is well developed with typical anisotropic characteristics. In addition，the quartz vein in quartz-mica schist leads to more complicated anisotropic characteristics. First of all，the mesoscopic structure analysis was carried out on the rock chips in the small scale of indoor experiments，and a number of sets of tests with different loading directions to schistosity plane were carried out. The deformation modulus and the strength of quartz-mica schist were found to change with the schistosity angle. In the simulation with particle flow code(PFC)，the smooth joint was adopted to simulate schistosity plane and the rock matrix was simulated as particles. The method produced the failure process of schistosity surface and rock matrix and reproduced accurately the results of indoor test. In order to study the characteristics of the anisotropy of large scale rock mass，the rock mass structure，especially the spatial distribution characteristics of quartz vein were collected and counted by the three-dimensional digital camera technology. The characteristics were accurately reproduced in numerical modeling. The anisotropic characteristics of quartz-mica in different sizes and with different structures were studied.

Key words： rock mechanics anisotropic characteristics quartz-mica schist multi-scale particle flow code(PFC) fine description

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	Articles by authors
	ZHANG Chunsheng1
	LIU Ning1
	2
	CHU Weijiang1
	2
	CHEN Pingzhi1
	2
	ZHOU Yong1
	2

Cite this article:

ZHANG Chunsheng1,LIU Ning1,2, et al. Multi-scale fine description on the anisotropic characteristics of quartz-mica schist[J]. , 2018, 37(3): 573-582.

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http://www.rockmech.org/EN/10.13722/j.cnki.jrme.2017.0790 OR http://www.rockmech.org/EN/Y2018/V37/I3/573

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