桂阳高速公路路基岩溶土洞发育成因与处治技术

岩溶土洞塌陷严重影响高速公路建设和安全运营,是覆盖型岩溶区高速公路路基面临的岩溶主要病害问题之一。该文分析了广西桂阳高速公路建设过程中出现的岩溶土洞病害成因,在对土洞发育特征和分布状况全面调查的基础上,针对不同类型土洞病害特点提出了处治原则,并采取了相应的处理措施,解决了工程问题。

Causes and Treatments of Soil Caves Exist in the Subgrade Foundation of Guiyang Expressway

Soil cave collapse is a serious threat to highway construction and safe operation.Also it's a main kind of subgrade diseases of the expressway constructed in covered type karst area.This paper analyzes the causes of soil caves found in process of Guiyang highway construction in Guangxi.On the basis of comprehensive survey on soil caves characteristics and distribution,the principles of treatment are proposed for different sizes soil caves.According to these principles corresponding measures are taken to sol...