马鞍山电厂地质环境与地基砂土液化评价

Evaluation of geological environment and sand liquefaction of foundation of the Ma' anshan Power Plant

马鞍山电厂位于长江右岸的漫滩和低阶地上,场区内普遍分布着淤泥质土及粉细砂层等软弱土层,场地工程地质条件较差,存在崩岸、软土变形和砂土液化等工程地质问题。文章在论述工程地质条件的基础上,结合工程特点,综合评价了各建设场区地质灾害发生的危险性和危害程度,重点对地基砂土液化问题进行了计算评价;对工程建设场地的适宜性和工程建设中存在的主要工程地质问题提出了防治措施。

The Ma＇ anshan Power Plant is located on the floodplain and terrace on the right bank of the Yangtze River. Muck clay and silty sand layers exist widely in the plant site, so engineering geological conditions is relatively poor, and dilapidation, soft soil deformation, sand liquefaction and other engineering geological problems may come into being. In the paper, the engineering geological conditions are discussed, and in view of the project characteristics, the possibility of hazards and the hazardous degree of various geological disaster are evaluated comprehensively. The focus is on the calculation and evaluation of sand liquefaction. The ground suitability and some preventive measures against main engineering geological problems are presented.