清基,划分地段和塊地倒黄土入水筑坝和一般辗压土坝一样,必须清除坝基的植物复盖层、风化层、并须铲坡。遇到湿陷性黄土和压缩性较高的土的坝基,若是作其他类型坝,总感到有些难于处理,往往在这方面花去很多时间和资金,而用倒黄土入水的方法筑的坝,则有其独特的优点。对于湿陷性黄土坝基,因为在一开始填筑时,就 Qingji, divided into plots and plots into the loess into the water dam and the general rolling earth dam, we must clear the dam foundation plant cover, weathered layer, and the slope must be shovel. Encounter collapsible loess and compressibility of the soil of the dam foundation, if it is for other types of dam, always felt a bit difficult to handle, often spend a lot of time and money in this regard, and use the method of pouring loess into the dam, It has its unique advantages. For collapsible loess dam foundation, because at the beginning of filling, it