摘要
疏浚淤泥泡沫塑料颗粒轻质混合土是一种新型的轻质土工材料,在轴向加载条件下,轻质混合土试样内部微裂纹的发生是从EPS颗粒与固化土的结合面处开始的。随着水泥及EPS颗粒添加量的不同,它的莫尔破坏包络线有折线型和直线型2种表现形式。与一般的土体不同的是,其抗剪强度机理应考虑轻质混合土试样胶结结构的逐渐破损效应。
Lightweight bead-treated soil made from dredged silt is a new type of lightweight geo-materials（LGM）. The meso-cracks in lightweight bead-treated specimen are found to generate from the interface between expanded poly-styrene （EPS） beads and solidified soil particles .With the additive amounts of cement and beads of EPS, the Mohr-coulomb envelope curve of the lightweight bead-treated specimen has two types： folding line and straight line. Different from natural soils, the damage of cementation should be considered in the strength mechanics of lightweight bead-treated soil.
出处
《岩石力学与工程学报》
EI
CAS
CSCD
北大核心
2005年第A02期5721-5726,共6页
Chinese Journal of Rock Mechanics and Engineering
基金
河海大学学生科技基金项目(2004–01)
