摘要
Abstract
Sand gravel cobble soil as special subgrade filler has different engineering properties,construction processes,and quality control methods from conventional soil subgrade,even from rock mixture foundation.The different field tests such as sand cone method,differential settlement method and DCP method are used to measure the compactness when the virtual height of a highway sand gravel and cobble is 30 cm and 40 cm respectively.The result shows that for sand gravel cobble soil embankment,the compactness values calculated by these three methods meet the design requirement when rolling 4 times.关键词
砂砾卵石土/压实度/灌砂法/沉降差法/DCP法Key words
sand gravel cobble/soil compactness/sand cone method/differential settlement method/DCP method分类
交通工程
