摘要
超前地质预报是隧道施工过程中的重要环节,尤其在岩溶富水地区,探测溶洞的存在和水量的大小不仅关系到工程建设的经济、工期等,更是直接关系到人身安全。以超前地质预报技术在重庆南山隧道岩溶富水区的应用为例,分析了TGP206预报系统、探地雷达及超前地质钻孔技术在隧道超前地质预报的基本原理和方法,并进行了预报工作,总结了各个预报手段的特点。最后,将预报结果和实际开挖揭露的结果进行了对比,进一步验证了综合探测技术在隧道地质预报的准确性。
The advanced geology forecast is an important step in tunnel construction process. Especially in karst Fushui area, detecting the existence of karst caves and the yield of water concerns not only the economy and time limit of the engineering construction, but also the personal safety. The advanced geology forecast technology on Chongqing Nanshan Karst Fushui Tunnel is set as an example, and the fundamental principles and methods of TGP206 forecasting system, ground penetrating radar and advanced geology drilling technology used in tunnel advance geology forecast are analyzed. Also, the forecast is done and the feature of each forecasting method is summarized. Finally, the forecasting results and those in practical operation are compared to further testify the accuracy of comprehensive probing technique in tunnel geological prediction.
出处
《北方交通》
2013年第9期75-78,共4页
Northern Communications
