The Progress of Geophysical Technologies for the Downtown Area of A City and the Breakthrough in Karst Cave Survey and Rock Burst Prediction of the Tunnel
详细信息
- 责任者：Zhong Shihang (China Academy of Railway Sciences ; Beijing 100081 ; China) ; Wang Rong
- 刊名：Geophysical and Geochemical Exploration
- 出版年：2012
- 卷期：36(3)
- 关键词：城市地质 ; urban geology ; 工程地质勘察 ; engineering geological investigation ; 地球物理勘探 ; geophysical exploration
- 页码：p.511-516
- 图表：2 illus., 1 table, 9 refs.
- 分类号：1600
- issnNo：ISSN1000-8918
- isbnNo：CN11-1906/P
摘要
Geophysical technologies in busy town of city have two problems which are vibration noise of passerby,cars and the other machines and the strong interference of geoelectric and electromagnetic.So geophysical exploration can not work in area on subway and the other engineering in busy town at present.The Landsonar method and C-1 electric instrument were new techniques used in recent years,which can not only advance greatly the resolution but also avoid kinds of interference and got new breakthrough on shallow engineering surveys in busy town of Beijng,Jinan and Guangzhou.Survey of the single karst caves was one of the difficult exploration problems.Landsonar had predicted single karst caves of 1m diameter at several decameters far away,got many confirmations with drilling hole and achieved great breakthrough.The mechanism and prediction of rockburst of underground engineering under high stress was also a difficult problem in international rock mechanics circle,the teams of author and professor Tang Chun-an achieved great result and progress on survey of rockburst with Landsonar and Microseismic monitoring system in Jingping secondary waterpower station.
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