Application of Stress Restoration Method to the Slope of
详细信息
- 责任者：Huang Feng (Sichuan Communication Surveying & Design Institute ; Chengdu 610017 ; China) ; Zhao Bing
- 刊名：Journal of Geological Hazards and Environment Preservation
- 出版年：2010
- 卷期：21(3)
- 关键词：地应力测量 ; geostress surveys
- 页码：p.67-71
- 图表：3 illus., 1 table, 18 refs.
- 分类号：1702
- issnNo：ISSN1006-4362
- isbnNo：CN51-1467/P
摘要
This paper introduces the use of stress restoration method in steep canyon bank slope test.The method is easy,economical,and affected slightly by construction condition.The method of continuous multi-point test can test the ground stress of bank slope near surface action zone.It makes up for lack of other stress measurement method.Taking a hydropower station in Southwest China as an example,bank slope ground stress in dam area is tested by stress restoration method.The results show that the stress near surface action zone is undulated as adit depth increase.According to stress fluctuating curve,stress of bank slope can be divided into: stress decrease zone,stress increase zone,stress fluctuation zone and stress stationary zone to provide quantitative basis for dividing weathering and unloading zone.Stress test result accord with steep canyon bank slope stress distribution law,it can meet the requirement of whole fieldstress analysis.Stress restoration method is suitable for stress test in steep canyon bank slope near surface action zone.