吹填泥浆沉积模拟试验研究  

Simulation on sedimentation of mud fluid of dredger fill

作　　者：杨爱武[1,2] 杜东菊[1,2] 赵瑞斌[1,2] 刘举[1,2] 卢力强[1,2] 

机构地区：[1]天津城市建设学院土木工程系,天津300381 [2]天津软土工程特性与工程环境重点实验室,天津300381

出　　处：《辽宁工程技术大学学报（自然科学版）》2010年第4期617-620,共4页Journal of Liaoning Technical University (Natural Science)

基　　金：天津市科技发展计划基金资助项目(04311381);天津市科技发展计划重点科技攻关基金资助项目(06YFSZSF04000);科技创新能力与环境建设平台项目(06SYSYJC14900)

摘　　要：为研究天津滨海新区吹填泥浆沉积特性,采用大型沉降柱进行模拟试验。结果表明:泥浆中土颗粒越细,泥水分界面下沉速度越慢;超静孔隙水压力随沉淀深度增大而增大;沉淀过程中阳离子由于交换减少,可加速泥浆沉淀;沉积后土颗粒沉积分选较明显。研究成果为进一步研究吹填软上工程性质及相关地基处理奠定了基础。A large scale settlement column was designed for studying the characteristics of deposition of blew mud fluid of dredger fill in Binhai, Tianjin. The results show that the finer the particles, the slower sink the soil-water interface; the excess pore water pressure increases with the depth of sedimentation; the cationic decreases due to their exchanges in the process of sedimentation, which can accelerate mud sedimentation. Obviously the sedimentary particles are sorted. The study results lay a solid basis for further study on engineering properties and related ground treatment in soft dredger fill.

关 键 词：吹填泥浆 超静孔隙水压力 模拟试验 沉积 

分 类 号：TU411[建筑科学—岩土工程]