complex karst tunnel的意思|示意

On the basic of large engineering practice, according to the complex karst geology problem of karst tunnel construction, the author grasped the major and difficult problem to research.

在大量的工程实践基础上，作者根据岩溶隧道施工所存在的问题-复杂的岩溶地质问题，抓住问题的重点和难点进行方法研究。

Abstract: : the karst is strongly developed in Dazhiping tunnel, where the hydrogeological condition and geological structure is complex, so the construction is difficult.

摘要：大支坪隧道岩溶发育强烈，水文地质条件和地质构造复杂，施工难度大。