西霞院工程上第三系地层水文地质特征  

Hydrogeological Characteristics of Upper Tertiary System Strata in Xixiayuan Project

作　　者：张一[1] 常福庆[1] 闫长斌[1] 

机构地区：[1]黄河勘测规划设计有限公司,河南郑州450003

出　　处：《资源环境与工程》2009年第5期554-557,共4页Resources Environment & Engineering

摘　　要：西霞院工程上第三系地层成岩时间短,岩、土性质并存,是介于岩石与土之间的过渡性地层。该地层工程地质、水文地质性质特殊,其透水性跨越中等透水、弱透水、微透水、极微透水等多个透水等级,且透水性渐变特征明显。加之各类地层的分布规律性差和构造复杂,工程区形成了较为复杂的水文地质条件,在进行防渗设计时应予以重视。Diagenetic time of upper Tertiary strata in Xixiayuan engineering is short, and the rock and soil exist at the same time,which is transitional strata between rock and soil. Its engineering geological and hydrogeologieal properties are very special and its permeability spans more than one grade including middle, weak, tiny and ultra fine permeability ,with obvious gradual change. Together with bad layout and complex structure of all kinds of strata, relative complicated hydrogeological condition developed in the engineering area, which should be attached importance to at the seepage control design stage.

关 键 词：上第三系地层 地下水 渗透系数 承压水 

分 类 号：P641[天文地球—地质矿产勘探] P534.61[天文地球—地质学]