聚苯乙烯轻质混合土的压缩变形特性试验研究  

Test study on compression and deformation behavior of light heterogeneous soil mixed with expanded polystyrene

作　　者：董金梅[1] 刘汉龙[1] 洪振舜[2] 王沛[3] 高玉峰[1] 

机构地区：[1]河海大学岩土工程研究所 [2]东南大学岩土工程研究所,南京210096 [3]天津城市建设学院土木工程系,天津300384

出　　处：《岩土力学》2006年第2期286-289,298,共5页Rock and Soil Mechanics

摘　　要：聚苯乙烯轻质混合土是一种新型的填土材料,国内对其压缩变形特性的试验研究较少。在无侧限抗压强度试验基础上,分析了聚苯乙烯轻质混合土的破坏应变、变形系数与抗压强度的关系;依据单向固结压缩试验,分析了不同配比条件混合土的压缩变形特性,得到压缩屈服应力和压缩模量,可为工程应用提供参考依据。Light heterogeneous soil mixed expanded polystyrene is a new kind of fill materials. The test studies are very scarce in China, In present study, based on unconfined compressive tests, the relationships between failure strain and compression strength, and between deformation coefficient and compression strength are analyzed. And according to one-dimensional consolidation compression tests, yield stresses and compressive modulus under different conditions of mixture ratios are obtained so as to provide reference for the application in engineering.

关 键 词：聚苯乙烯轻质混合土 破坏应变 变形系数 屈服应力 压缩模量 

分 类 号：TU432[建筑科学—岩土工程]