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本文以甘肃省永登-古浪高速公路为例,通过野外地质调查、物探和钻探工作,对高速公路沿线地形地貌、水文地质、地层岩性介质、构造地质、地震等几个方面进行了详细研究和分类,并在此基础上对公路沿线分段的工程地质与工程地震条件进行了评价,用以说明复杂长线工程场地工程地质与工程地震条件评价的工作内容和方法。研究结果表明永古高速公路沿线工程地质与工程地震条件复杂多变,各区段均有特殊的工程地质问题和工程地震条件,施工设计中应根据各段特点采取相应的措施。
Taking the Yongdeng-Gulang Expressway in Gansu Province as an example, this paper detailedly studied the topography, hydrogeology, stratigraphic lithology, tectonic geology and earthquake along the expressway through the field geological survey, geophysical exploration and drilling work Research and classification, and on this basis, the engineering geology and engineering seismic conditions of the section along the highway are evaluated to illustrate the contents and methods of engineering geological and engineering seismic conditions assessment for the complex long-term engineering site. The results show that the engineering geology and engineering seismic conditions along the Yonggu Expressway are complex and changeable. Each section has special engineering geological problems and engineering earthquake conditions. Corresponding measures should be taken according to the characteristics of each section in the construction design.