摘要
选取豫西地区三种典型土进行自由膨胀率、塑性指数、胀缩总率和标准吸湿含水率试验,对三种土进行膨胀性判别。将不同的土质应用于不同的路基层位,同时采用土工格栅、冲击压实对膨胀土路基进行加固,并给出合理的施工方法、施工工艺及铺设质量控制措施。
The tests such as free swelling ratio, plasticity index, total rate of swelling-shrinkage and standard moisture absorption content of three typical types of soil in west Henan are carried on in order to distinguish their expansibility. Different soil is used in different layers of subgrade. At the same time, the geotechnical grille and impact compaction technology are method, construction technology and used to strengthen the expansive soil subgrade. Reasonable construction paving quality control measures are also proposed
出处
《交通标准化》
2012年第18期22-26,共5页
Communications Standardization
关键词
膨胀土
自由膨胀率
最大吸湿含水率
塑性指数
土工格栅
冲击压实
expansive soil
free swelling ratio
maximum moisture absorption content
plasticity index
geotechnical grille
impact compaction
