摘要
以宁夏具有代表性的同心湿陷性黄土为研究对象,制备结构性重塑土样,选取易溶盐含量s、土样干密度ρd、含水量w为因素,湿陷系数δs为考察参数,设计L9(33)正交试验方案和单因素试验方案,试验研究了易溶盐CaCl2对黄土湿陷性的作用效应,揭示了作用规律和作用机理,建立了关系模型.试验结果表明,易溶盐CaCl2是影响黄土湿陷性的重要因素之一,湿陷系数随盐含量的增大而增大.
Taking the typical collapsible loess sample of Tongxin district in Ningxia as research object, structural remodeling soil samples were prepared. Through research soluble salt dosage s, remodeling soil dry density Pd, moisture content w and the collapsible coefficient as the inspection parameters, and L_9 （3^3） orthogonal experiment and single factor experiment is designed. Experiment study the effect of soluble salt CaCl2 to reveal the affection law, principle and relation model. Experimental research shows that soluble salt is one of the main factors that influence of the loess collapsibility. With the increase of the salt, the sample collapsible coefficient appears the increasing phenomenon.
出处
《宁夏工程技术》
CAS
2013年第1期41-43,共3页
Ningxia Engineering Technology
关键词
结构性重塑土样
易溶盐
湿陷系数
the structural remodeling of loess samples
soluble salt
collapsible coefficient
