Abnormities of Contractive Sonic Wave Test Results in Single Rock Drillholes
详细信息
- 责任者：Chen Qiang (State Key Laboratory of Geohazard Prevention and Geoenvironment Protection ; Chengdu University of Technology ; Chengdu 610059 ; China) ; Nie Dexin
- 刊名：Journal of Engineering Geology
- 出版年：2012
- 卷期：20(1)
- 关键词：坝基 ; dam foundation ; 声波测井 ; acoustical logging
- 页码：p.74-81
- 图表：6 illus., 23 refs.
- 分类号：1600
- issnNo：ISSN1004-9665
- isbnNo：CN11-3249/P
摘要
This paper examines the the holistic heterotopia and fluctuation phenomena of the sonic wave curves.The curves are obtained through sonic contrastive tests in single bore.Some contrasts are made among the curves integrated with the actually sonic test data.On the basis of contrasts,concrete manifestation and characteristic feature of the abnormity are presented.Then the mainly reason for this abnormity is analyzed.The result demonstrates that the sonic test abnormity is mainly caused by substandard test operation.