沐官岛水库蓄水初期盐分运移数值模拟  

Numerical simulation of salinity transport for initial impoundment of Muguandao reservoir

作　　者：赵全升[1] 鲁静[2] 邵争平 高增文[4] 冯娟[1] 

机构地区：[1]青岛大学环境科学系,青岛266071 [2]青岛海洋地质研究所,青岛266071 [3]新疆地质工程勘察院,乌鲁木齐830091 [4]中国海洋大学环境科学与工程学院,青岛266003

出　　处：《水文地质工程地质》2008年第4期6-10,共5页Hydrogeology & Engineering Geology

基　　金：国家自然科学基金(40772151);山东省自然科学基金(Y2006E03);青岛市科技发展计划项目

摘　　要：沐官岛水库是一个拟建的河口海湾水库,库底为富含咸水的潮滩沉积物。这一特殊的地质及水环境条件直接关系到水库未来的水质安全和正常的调度运行,所以必须准确地确定水库水体中盐分空间分布这一关键问题。本文依据现场调查、钻探及室内实验资料,通过垂直方向线性插值技术,建立了沐官岛水库蓄水初期盐分运移准三维模型,模拟了水库蓄水初期在内源盐分释放影响下,库水盐分的演化过程。结果表明：若遇平水年开始蓄水,当蓄水至1.5m时,该层含盐量在平面上的变化范围主要在0.30～1.30g/L之间;当蓄水至4.5m时,该层含盐量在平面上的变化范围主要在0.30～1.55g/L。Muguandao reservoir is a proposed estuarine project and at the bottom are tidal deposits laden with salt water. In such a special geological and water environment, salt water in the deposits will intrude into the overlying fresh water, which will affect the water quality and normal operation of the reservoir. It is therefore important to identify the spatial extent of salt. Based on site survey, drilling and laboratory data, a quasi-3D model is established by linear interpolation in vertical direction, simulating the migration of salt in the initial impoundment of the reservoir. As a result, if the impoundment happens in the normal water year, at the level of 1.50m, salinity ranges at 0.30g/L to 1.30g/L; and at the level of 4.5m, salinity varies from 0.30g/L to 1.55g/L.

关 键 词：海湾水库 蓄水初期 盐分运移 数值模拟 

分 类 号：P342.1[天文地球—水文科学]