超前地质预报技术在龙潭隧道中的应用研究

该文以龙潭隧道超前地质预报为工程实例,采用TSP、地质雷达、红外探水和超前地质钻孔四种方法,通过不同方法的取长补短成功预报一个特大充填富水型溶洞的位置。总结TSP、地质雷达和红外探水三种物探手段的适用性和局限性,并在实施过程中对其进行科学运用,同时注重超前水平钻孔的验证工作,在高风险岩溶段达到了准确预报不良地质的目的,避免了地质灾害发生。三种物探方法的适用性和局限性的结论,以及不同物探方法相结合并辅以地质钻孔验证的超前地质预报方法,对后续隧道工程的超前地质预报工作具有借鉴意义。

Study on Application of Geological Forecast Method in Longtan Tunnel

Based on the geological prediction of Long, tan tunnel, in which four methods are used, including TSP,GPR,infrared water detecting method and advanced hole drilling method to successfully forecast the location of a huge karst cavity filled with water and soil.By The limitation and applicability of TSP, GPR and infrared water detecting method are summarized. With scientific application of the three methods and careful check of horizontal hole drilling, the adverse geology of high risked karst section can be accurately forecast so that geological disaster can be avoided. The conclusion of the three prediction methods and the combination of different prediction methods with hole drilling check method can also offer some references for future tunnel engineering.