大连理工大学学报2012，Vol.52Issue(5)：683-688,6.
聚丙烯纤维红黏土渗透性与剪切特性试验研究
Experimental study of permeability and shear behaviors of polypropylene fiber reinforced red clay
摘要
Abstract
Using triaxial compression test, the mechanical behavior and permeability of polypropylene fiber reinforced red clay are studied. The compaction test and the permeability test results show that the fibers content has great effect on the optimum moisture content while has less effect on the max dry density. The permeability of fiber reinforced red clay keeps low level when the fibers content is 0. 25%-0. 80~. The results of triaxial consolidation undrained test show that the shear strength of fiber reinforced red clay increases with the axial strain and the work hardening character is expressed. The shear strength of fiber reinforced red clay also increases with the fibers content and fibers length. The confining pressure has remarkable impact on shear behaviors of fiber reinforced red clay. The fiber reinforced red clay has a bulging damage under low fibers content and it doesn＇t induce fracture under high fibers content when the largest axial strain of samples appears.关键词
纤维红黏土/聚丙烯纤维/传统三轴试验/抗剪强度/纤维含量与长度Key words
fiber reinforced red clay/polypropylene fiber/conventional triaxial test/shear strength/fibers content and fibers length分类
建筑与水利引用本文复制引用
张金利,蒋正国,闫春程,杨庆,杨钢,张林林..聚丙烯纤维红黏土渗透性与剪切特性试验研究[J].大连理工大学学报,2012,52(5):683-688,6.基金项目
国家自然科学基金资助项目（61179023）. （）
