兰州大厚度黄土湿陷性初判方法探索  

Preliminary Gauge for Collapsibility of Lanzhou Loess with Large Thickness

作　　者：胡燕妮[1] 米海珍[1] 

机构地区：[1]兰州理工大学土木工程学院,兰州730050

出　　处：《建筑科学》2009年第1期5-8,共4页Building Science

基　　金：甘肃省自然基金项目(编号:3ZS042-B25-031);甘肃省333科技人才工程基金

摘　　要：探索兰州地区大厚度黄土湿陷性与物理指标的关系。通过收集兰州地区100组黄土湿陷性的土工试验资料,分析土粒比重、天然重度γ和孔隙比e0对湿陷性的影响,得到了依据天然重度和孔隙比指标进行黄土湿陷性等级初判的方法。并建议了湿陷系数估算公式。It is to seek for the relationship between collapsibility and physical indexes of Lanzhou loess with large thickness. On the basis of 100 data of laboratory tests, the effect of specific gravity of solids, unit weight and in-place void ratio on the collapsibility is analyzed. A preliminary gauge is derived from the unit weight and the in-place void ratio. The formula of an exponent equation： is suggested to estimate the collapsibility coefficient.

关 键 词：黄土 湿陷性 天然重度 孔隙比 

分 类 号：P642.13[天文地球—工程地质学] TU444[天文地球—地质矿产勘探]