• 责任者：Sun Dongsheng (Key Laboratory of Neotectonic Movement and Geohazard ; Ministry of Land and Resources ; Institute of Geomechanics ; Chinese Academy of Geological Sciences ; Beijing 100081 ; China) ; Lin Weiren
• 刊名：Geology in China
• 出版年：2013
• 卷期：40(3)
• 关键词：地应力测量 ; geostress surveys ; 四川 ; Sichuan Province
• 页码：p.840-845
• 图表：5 illus., 1 table, 19 refs.
• 分类号：0300
• issnNo：ISSN1000-3657
• isbnNo：CN11-1167/P

     The in-situ stress state of seismogenic fault after a strong earthquake is one of the important parameters for understanding the mechanism of the earthquake. This paper focuses on the measuring instruments and processes of the anelastic strain recovery method(ASR) for the deep in-situ stress measurement. The anelastic recovery strains of seven different deep cores are in the range of 424~1173 m in WFSD-1. The direction and magnitude of principal stress were determined and estimated, respectively. The dominant azimuths of maximum principal stress are between NW69° and NW35°, and the magnitude of principal stress increases with the increasing depth.