摘要
在室内试验条件下,以青海格尔木市郊土样为样品,研究了盐渍土抗剪力学性质的变化。试验结果表明,加入不同盐类和含量的氯盐及硫酸盐,土体粘聚力c和内摩擦角φ均与含盐量同含水量的比值m存在良好的线性关系。当m<1.54时,加入的氯盐和硫酸盐所得c,φ值差异较大;当m>1.54时,差异较小。经分析可以认为,盐渍土强度参数c,φ值的变化,主要是由土体中易溶盐相态变化所致。
Based on laboratory experiment, soil samples come from suburb of Geermu, Qinghai province, the variation of shearing strength properties of soil-bearing soil is studied. The results show that adding different salt and content of chlorine and sulfate, soil cohesion c friction angle φ beth have linear regression relation with the ratio of salt content and water content. When m is not more than 1.54, there is a larger difference between chlorine and sulfate, but it is contrary when m is more than 1.54. So it is can be thought that variation of phase state of soluble salt contributes to changes of strength parameters c and φ.
出处
《四川建筑科学研究》
北大核心
2007年第5期98-99,109,共3页
Sichuan Building Science
关键词
盐渍土
强度参数
可溶盐
含水量
含盐量
salt-bearing soil
strength parameters
soluble salt
water content
salt content
