黄土EPS颗粒混合轻质土的抗剪强度特性试验研究  

Experimental Study on Shear Strength Characteristics of Loess EPS Particle-mixed Lightweight Soil

作　　者：陶亮 TAO Liang(Guangxi Xianglu Construction Co.,Ltd.,Nanning,Guangxi,530029)

机构地区：[1]广西翔路建设有限责任公司,广西南宁530029

出　　处：《西部交通科技》2018年第9期32-35,共4页Western China Communications Science & Technology

摘　　要：对不同水泥和EPS颗粒掺入比制备的黄土EPS颗粒混合轻质土,文章采用不固结不排水剪三轴压缩试验,研究水泥和EPS颗粒对黄土EPS颗粒混合轻质土的粘聚力、摩擦角力学特性的影响。试验结果表明:黄土EPS颗粒混合轻质土的内摩擦角介于14.781°～22.097°之间,受水泥、EPS颗粒掺入量的影响很小;黄土EPS颗粒混合轻质土的粘聚力随水泥掺入量的增加而增大,当水泥掺入量到达20%后,粘聚力几乎不受水泥掺入量变化的影响,而随EPS颗粒掺入比的增大,粘聚力先增大后减小。For the loess EPS particle-mixed lightweight soil prepared by different content of cement and EPS particles,this article used the unconsolidated undrained shear triaxial compression test to study the effect of cement and EPS particles on the cohesion and mechanical properties of friction angle of loess EPS particle-mixed lightweight soil.The test results showed that the internal friction angle of loess EPS particle-mixed lightweight soil is between 14.771°-22.097°,which is little affected by the amount of cement and EPS particles;the cohesion of loess EPS particle-mixed lightweight soil is increasing with the increase of cement amount,the cohesion is almost unaffected by the change of cement content when the cement content reaches 20%,while the cohesion increases first and then reduces with the increase of the content ratio of EPS particles.

关 键 词：黄土 EPS颗粒 轻质土 抗剪强度 粘聚力 摩擦角 

分 类 号：U416.03[交通运输工程—道路与铁道工程]