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
ZHONG Shi-hang1,2, Wang Rong2
1. China Academy of Railway Sciences, Beijing 100081, China;
2. Beijing Hydrogeological Investigation, Engineering, Mineral Resources and Environment New-tech Development Co., Ltd, Beijing 100081, China
Abstract：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.
钟世航, 王荣. 城市闹市区物探技术和岩溶探查的进展及隧道施工时岩爆预报技术的突破[J]. 物探与化探, 2012, 36(3): 511-516.
ZHONG Shi-hang, Wang Rong. 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. Geophysical and Geochemical Exploration, 2012, 36(3): 511-516.
