综合地质预报技术在都良隧道动态设计中的应用

Application of Comprehensive Geological Prediction Technology to Observational Design for the Duliang Tunnel

都良隧道地质条件复杂,施工风险高。为避免不良地质灾害的发生,确保施工安全,在施工期间选择了"以地质法为基础,中长距离与短距离物探技术相结合,辅以超前水平钻"的综合地质预报技术。通过对高风险段的综合预报,准确预报了不良地质体的性质和分布情况,为隧道施工方案制定和设计参数动态调整提供了可靠的依据,保障了施工安全,对同类隧道施工具有借鉴意义。

Because of the complex geological conditions and high construction risk present in the Duliang tunnelproject, comprehensive geological prediction technology（i.e., basic geological method＋medium-and-long distanceand short distance detection techniques combined with the geophysical prospecting method＋the advanced horizontaldrill probing method） has been adopted to prevent the occurrence of geological disasters and ensure safety duringthe construction period. This comprehensive prediction for high risk sections accurately determines the nature anddistribution status of unfavorable geologic bodies, provides a reliable basis for deciding upon a tunnel constructionscheme and adjusting design parameters, and guarantees construction safety.