浙江滨海流泥的探测及其沉积特性分析  

Detection of the Fluid Mud in Zhejiang Coastal Area and Analysis on the Characteristics of its Deposition

作　　者：江晓益[1] 陈式华[1] 陈星[1] 李红文[1] 

机构地区：[1]浙江省水利河口研究院,浙江杭州310020

出　　处：《浙江水利科技》2012年第6期8-10,16,共4页Zhejiang Hydrotechnics

基　　金：浙江省水利厅科技计划项目(RC1130)

摘　　要：流泥是滨海潮滩表部沉积的超软淤泥性土，其孔隙比大于2．4，含水率大于85％。流泥的目力鉴别可从颜色、形态、手感、刀切反映及形变等方面进行判断。流泥强度极低，采用柱状透明采泥器可获取流泥样品及其沉积厚度。通过对流泥的沉积特性分析，流泥含水率随深度增加具有明显减小的特点，含水率和重度之间存在着良好的半对数关系，浙江滨海流泥的粒径均小于0．1mm，中值粒径一般为0．005～0．009mm。The fluid mud is the super-soft silt soil which deposited on the surface of coastal tidal flat. The porosity ratio of the fluid mud is larger than 2.4, and the moisture content is higher than 85 %. The visional identification of the fluid mud could be judged in terms of color, shape, feeling, knife-cut reflect and deformation. The intensity of the fluid mud is extremely low; the sample of the fluid mud and its sedimentary thickness could be obtained by using transparent columnar sediment sampler. Through the analysis of fluid mud＇s deposition characteristics, we find that water content of the fluid mud reduced significantly with increased depth. There is a half logarithm relationship between the water content and bulk density. The particle diameter of the fluid mud is less than 0. lmm, and the average particle diameter is 0.005 ~0.009 mm in Zhejiang province.

关 键 词：流泥 探测 沉积特性 滨海 

分 类 号：TU41[建筑科学—岩土工程]