西南某机场岩溶地质特征分析与工程地质分区研究

摘要

In this paper,an airport in Southwest China karst area has been taken as the research object,and in-depth analysis of topography,lithology,geological structure in the area of geological characteristics and evolution of karst hydrological process,development and distribution have been studied,and the distribu-tion of karst development and karst study area investigated.According to the principle of division of engi-neering,geology of the study area is divided into erosion corrosion in deep hill area,erosion corrosion and erosion corrosion residual deep hilly area-shallow hilly areas of three regions,and expounds the features and main factors in each zone of karst development.By analyzing the construction of karst site stability of the airport,results show that the karst airport site is basically stable with little possibility of the occur-rence of karst collapse.The airport is prior to the construction of foundation excavation and filling,grou-ting,leap,drainage,and other engineering geological management has certain guiding significance,laying the foundation for the airport of detailed geological work.%以西南岩溶地区某机场为研究对象，深入分析研究区内地形地貌、地层岩性、地质构造演化过程、水文地质特征和岩溶发育分布，查明研究区岩溶发育和岩溶的分布情况。根据工程地质的分区原则将研究区划分为剥蚀溶蚀中-深丘区、剥蚀溶蚀深丘区和剥蚀溶蚀残-浅丘区3个区域，并阐述了各分区内的岩溶发育特征和主导因素。通过对研究区建设场地岩溶稳定性分析，发现研究区场地内的岩溶基本稳定，发生岩溶塌陷的可能性小，这对机场建设前期地基的挖填、压浆、跨越、排导等工程地质治理具有一定的指导意义，为机场的详勘工作打下基础。