人民长江2018，Vol.49Issue(12)：87-92,6.DOI:10.16232/j.cnki.1001－4179.2018.12.016
素水泥土及纤维水泥土动力特性试验研究
Experimental study on dynamic properties of pure cement soil and fiber reinforced cement soil
摘要
Abstract
Cement soil in Wenzhou area was tested by dynamic triaxial apparatus.The research results show that the dynamic stress－strain curves and the dynamic elastic modulus－strain curves of soil cement samples are hyperbolic.The cement content has the most significant influence on the dynamic stress of cement soil.The influences of cement content,fiber content and dy-namic load frequency on the dynamic elastic modulus of cement soil are very obvious.With the increase of cement content and dynamic load frequency,the dynamic strain of cement soil samples at failure are obviously reduced.With the increase of fiber content,the dynamic strain of cement soil samples at failure are obviously increased,indicating that appropriate amount of mixed fiber can improve the plasticity of cement soil.When the stress level exceeds the critical dynamic stress of cement soil,the plas-tic deformation of cement soil increases sharply until the soil failure,so in engineering design,the total stress of the upper struc-ture should be controlled within the critical stress of the reinforced soil,and the frequency of the load should not be similar to that of the cement soil.关键词
动三轴试验/动力特性/素水泥土/纤维水泥土Key words
dynamic triaxial test/dynamic characteristic/pure cement soil/fiber reinforced cement soil分类
天文与地球科学引用本文复制引用
汪明元,鹿群,郭少龙,王闵闵,高萌..素水泥土及纤维水泥土动力特性试验研究[J].人民长江,2018,49(12):87-92,6.基金项目
中国电建集团科技项目(SD2013－10) （SD2013－10）
