Comprehensive Survey of Engineering Geology of Karst in Gaoping-Jixin Highway

Taking the karst geology investigation in the section from Gaoping to Jixin of Hurong national highway as an example, this paper discusses the basic method of engineering geology investigation of the highway project in the karst region. In the karst region, some investigation methods, such as remote sensing and GIS technology, geological mapping, comprehensive geophysical prospecting and geology drilling, are applied to research the special topic and analyze the exploring results, which can correctly ascertain the karst regulation, the type of the karst, controlling affections and the distribution and the movement regulation of the karst water. The comprehensive survey method can gain the scientific analysis and evaluation; It also can put forward the proper treatment countermeasure. Based on the results of the investigation, the design,construction and operation is economic and reasonable.