水文地质工程地质2017，Vol.44Issue(3)：61-71,11.DOI:10.16030/j.cnki.issn.1000-3665.2017.03.10
真空预压法淤堵泥层形成机理及预测模型研究
A study of siltation mud formation mechanism and prediction model of vacuum preloading method
摘要
Abstract
For the easily formed clogging phenomenon in the reinforcement process of vacuum preloading,the indoor tests under the conditions of different particle composition and different vacuum pressure value combined with the indoor vacuum preloading model test had been conducted.The formation features and mechanism of the siltation mud had been revealed,and the forecast model of drainage amount and the average moisture content had been built up preliminarily.The results show that the thickness of siltation mud is large with low moisture content and compactness due to the seepage paths are wide and long under lower vacuum degree,and the diameter distribution of pores is wide and uniform.However,the seepage paths are narrow and short under higher vacuum degree,the thickness of siltation mud is small with high moisture content and compactness,and the diameter of pores is small and the distribution is uniform.The higher clay content,the smaller the pore diameter,the higher degree of the concentration,and the more stable of the filter layer structure.关键词
真空预压法/吹填淤泥/淤堵泥层/预测模型/渗透路径Key words
vacuum preloading method/hydraulic fill mud/siltation mud/prediction model/seepage path分类
建筑与水利引用本文复制引用
刘景锦,雷华阳,卢海滨,李宾,郑刚..真空预压法淤堵泥层形成机理及预测模型研究[J].水文地质工程地质,2017,44(3):61-71,11.基金项目
国家自然科学基金项目资助(51378344) （51378344）
天津市应用基础与前沿技术研究计划项目资助(14JCYBJC21700) （14JCYBJC21700）
天津市科技兴海项目资助(KJXH2013-15) （KJXH2013-15）
