真空预压法制备重塑饱和软粘土试验研究  

EXPERIMENTAL STUDIES ON REMOLDING OF SOFT CALY BY VACUUM PRELOADING

作　　者：李驰[1] 林敏[1] 

机构地区：[1]内蒙古工业大学建工学院,呼和浩特010051

出　　处：《内蒙古工业大学学报（自然科学版）》2007年第2期125-128,共4页Journal of Inner Mongolia University of Technology：Natural Science Edition

基　　金：国家自然科学基金资助项目(项目编号:50379035)

摘　　要：运用真空预压原理,采用自行研制的真空预压设备制备重塑饱和软粘土试样.通过控制土样的含水量和土性指标,获得与原状土性质相仿的重塑土样.建立重塑土样含水量、排出水量和土样高度之间的量化关系.其中,含水量实测值与计算值误差小于4%;实测土样高度与计算值之间的误差小于2%.文中结论为真空预压制备重塑饱和软粘土提供理论依据.对真空预压制备重塑土样的工程实践具有指导作用.Saturated soft clay has been remolded by use of a vacuum preloading device made by researchers themselves. Reborn samples are obtained similar to intact samples by way of controlling the moisture content and the characteristic data of soil. Relationships between moisture content, displacement and height of reborn samples are established based on test results. The deviation of measured results from calculated results of moisture content is less than 4% ,while that of sample height is less than 2%. The studies provide a theoretical basis for the remolding of saturated soft clay by vacuum preloading,which gives a valuable guidance in practical geotechnical engineering.

关 键 词：真空预压法 重塑土样 饱和软粘土 

分 类 号：TU431[建筑科学—岩土工程]