黄土湿陷性的水石膏耦合效应

为了探索水和石膏耦合对黄土湿陷性的作用规律, 以黄土的含水量和石膏含量为因素, 设计混合均匀试验方 案, 进行了黄土湿陷性的水石膏耦合效应研究, 应用最小二乘拟合, 建立了湿陷系数与石膏含量、含水量的非线性回 归数学模型。结果表明, 石膏含量对黄土的湿陷性有显著影响, 黄土湿陷系数与石膏含量、含水量均呈递减的指数 关系, 水和石膏耦合有利于降低黄土的湿陷性。 or der t o ex plor e t he coupling effect of w ater and g ypsum on loess co llapsibility a uniformly m ix ing test scheme w as car ried out to st udy the coupling effect based o n the factors of mo isture co nt ent and g ypsum content o f loess. T he nonlinear re2 g ression mathematical model bet ween the co lla psibility coefficient and g ypsum content and moisture co ntent w as develo ped by the least squar es fit ting method. The results showed that gy psum co ntent has sig nificant effects on loess collapsibility, the loess co llapsibilit y co efficient has a decr easing ex ponent ial relatio nship w ith gy psum co ntent and mo isture co ntent, and the coupling of water and gy psum can decrease the co llapsibility of loess. 教育部/ 长江学者和创新团队发展计划0 创新团队项目( IRT1067)