某电站工程区湿陷性黄土地质特征

某电站工程区黄土分布范围广、厚度大，主要为上更新统风积黄土。黄土具有干密度小、湿陷性强、力学强度低、均一性差等特征。地基黄土湿陷性问题为该工程主要地质问题之一。通过对黄土湿陷性与密度、高程、埋深关系分析．总结工程区黄土湿陷性一些共性特征及存在的主要工程地质问题，为工程区地基处理、设计及施工方案提供依据。

Geologic Characteristics of Collapsible Loess in a Power Station Area

There is a large area of deep loess in a project area.It is mostly upper Pliocene series eolian soil.The loess is characterized by little dry density, strong coUapsibility,low mechanical strength,and poor uniformity.CoUapsibility of foundation loess is one of the main geological problems of the project.The text summarizes the common features of loess coUapsibility and the main engineering geological problems in the project area through analyzing the relationship between loess coUapsibility and density,elevation and embedded depth,and provides a basis for foundation treatment, design and construction scheme of the p^roject area.