长大复杂岩溶隧道防避地质灾害的调查模式

The Survey Mode of Long Tunnel in Complex-karst Areas to Avoid the Geological Hazards

研究目的:长大复杂岩溶隧道存在高潜势地质灾害,危害极大。为避免安全事故,造成更大损失,拟尽可能充分利用有利时空、有利条件,多途径、系统收集地质信息,以更确切地进行地质评价,提出更切实际的防范措施,避免地质灾害的发生;研究结论:宜万铁路建设实践表明,长大复杂岩溶隧道防避地质灾害的调查模式在满足铁路正常勘察程序要求的同时,应尽力扩大勘察途径、增设勘察阶段,并将勘察系列与地质预报系列连接,创造更多机会获取更多的地质信息,以综合分析研究,有效地进行地质灾害(风险)预测和施工地质超前预报、采取防避灾害的措施,达到规避地质风险目的。

Research purposes： Long geological hazards. In order to avoid favorable time, favorable conditions, tunnel in comple - karst areas was unlimited dangerous because of high potential the occurrence of geological disaster and bigger loss, try to make full use of and collect geological information in many ways, then, exact geological evaluation could be made, and more practical preventive measures could be given. Research conclusions：The practice of Yichang - Wanzhou railway indicated that ＂ The survey mode of long tunnel in complex- karst areas avoidance of geological hazards （ risk ）＂ could meet the normal railway survey program requirements, at the same time, try to expand the investigation way, add the phase of exploration, combine the exploration with geological forecast, create more opportunities to get more geological information, so the geological disasters could be analyzed comprehensively, and effectively prediction and advanced geological forecast in construction could be made, then, effective measures could be used to avoid geological risks.