摘要
隧道施工中对掌子面前方一定范围内的地质情况进行超前探测和预报是保证隧道施工安全的关键。在宜万铁路金子山隧道岩溶富水区施工中,引进了地质雷达等仪器对隧道进行超前地质预报。同时,针对地质雷达探测中因物理探测本身具有的多解性等弱点,在施工实践中逐步提出并形成了以"中、长物探和水平地质钻探验证"为主的综合式超前地质预测预报技术。采用该技术,成功预报并穿越了金子山隧道F2岩溶富水带。金子山隧道安全、顺利贯通证明了该技术的实用性和有效性。
In a tunnel construction, the advanced forecasting technology for geological situations in front of the headingface is the key to gtmrantee the tunnel construction security. In the construction of the karst region rich in water in Jinzishan Tunnel of Yichang-Wanzhou Railroad, the instruments as the geology radar and so on are introduced for the advanced forecasting of geology. At the same time, in view of the weaknesses as the multi-explanation and so on in the physical survey, the comprehensive advanced forecasting technology of geology mainly with ＂the middle-long physical survey and the horizontal drilling confirmation of geology＂ is formed progressively in the construction. This technology is used to forecast and pass through F2 karst region rich in water in Jinzishan Tunnel successfully to prove the utility and effectiveness of the technology.
出处
《水利与建筑工程学报》
2008年第2期91-92,96,共3页
Journal of Water Resources and Architectural Engineering
关键词
隧道工程:超前地质预报
地质雷达
岩溶
tunnel engineering
advanced forecasting of geology
geology radar
karst
