无粘性土已被广泛应用在堤坝、地基垫层、反滤层和排水设施上,该类土的一个显著特点是,其工程性质是由相对密度的大小来确定的,故国内外现行规范,对各种等级的土工建筑物制定了不同密实度的标准,以此作为设计和施工质量控制的依据。对于压实无粘性土 Non-cohesive soil has been widely used in dams, foundation cushion, filter layer and drainage facilities, a notable feature of this type of soil is that its nature is determined by the relative density of the size, so the current norms at home and abroad, the right Various grades of geotechnical buildings have developed standards of different densities as a basis for quality control of design and construction. For compacted non-cohesive soil