期刊名称：IOP Conference Series: Earth and Environmental Science
印刷版ISSN：1755-1307
电子版ISSN：1755-1315
出版年度：2018
卷号：170
期号：2
页码：022165
DOI：10.1088/1755-1315/170/2/022165
语种：English
出版社：IOP Publishing
摘要：In order to acquire the in-situ stress state and its distribution law in Ningdong mine area, in-situ stress measurement tests were conducted respectively in the coal mine of Zao Quan mine, Yang Changwan mine and Mei Hua mine. 3D in-situ stress states of five test points in three levels were obtained by using 3D stress reliving measurement technology and hollow inclusion strain gages combined with experiments of the rock core confining pressure test. The general distribution state and characteristics of in-situ stress field in Ning Dong mine area can be concluded as follow: Horizontal stress field acts as the main part, the direction of principal stress is horizontal basically the direction of the maximum principal stress N50.3 E in average. In-situ stress value in mine area increases linearly with the mining depth, and establish the model of in-situ stress of mine area.
