黄河三角洲粉质土前期固结压力的探讨  

Study on pre-consolidation pressure of silt in the Yellow River Delta

作　　者：杨秀娟[1] 贾永刚[1] 刘红军[1] 

机构地区：[1]中国海洋大学环境科学与工程学院,山东青岛266100

出　　处：《华东师范大学学报（自然科学版）》2009年第3期146-152,共7页Journal of East China Normal University(Natural Science)

基　　金：国家自然科学基金(40472137);2008年河口海岸科学全国博士生学术论坛资助

摘　　要：通过对黄河三角洲海港地区粉质土的室内实验,从物质组成、结构形态和沉积环境的角度阐述了黄河三角洲粉质土前期固结压力的特性,并探讨其含义.通过试验发现,作为一种性质较为特殊的区域性土,黄河三角洲地区广泛存在的粉质土的前期固结压力所表现出的规律与传统的土力学理论并不相符.经分析认为,黄河三角洲粉质土的前期固结压力主要受土的成因、结构和成分的制约,上覆压力的影响甚微.By indoor experiments about the silt in the Yellow River Delta, the characteristics of the silt＇s pre-consolidation pressure were studied from points of soil genesis, structure and com- ponent, and sedimentary environment. The studies show that, the silt in the Yellow River Del- ta, as a special regional soil, has a different trend of the pre-consolidation from the traditional theory. And the pre-consolidation of silt is most constrained by soil genesis, structure and component, and is affected by the overlying pressure in little degree.

关 键 词：黄河三角洲 粉质土 前期固结压力 压缩曲线 结构强度 

分 类 号：Q948[生物学—植物学]