土工织物化学淤堵研究进展  

Research Progress on Chemical Clogging of Geotextiles

作　　者：吴炎 胡坤[2] 常森 WU Yan;HU Kun;CHANG Sen(Changzhou University Huaide College,Jingjiang 214500,China;School of Urban Construction,Changzhou University,Changzhou 213164,China)

机构地区：[1]常州大学怀德学院,江苏靖江214500 [2]常州大学城市建设学院,江苏常州213164

出　　处：《金属矿山》2023年第4期222-228,共7页Metal Mine

基　　金：中国博士后科学基金面上项目(编号:2021M703507);江苏省产学研合作项目(编号:BY2021208);泰州市科技支撑计划(社会发展)项目(编号:SSF20210062)。

摘　　要：作为良好的排水材料,土工织物在工程领域中大量应用,而随时间的增加,土工织物的化学淤堵越来越明显。探究土工织物化学淤堵的机理,揭示土工织物化学淤堵过程,这对于提高土工织物的工程效率有着积极作用。通过分析土工织物化学淤堵的影响因素,着重探究土壤和水体的离子组成、pH值、土壤中微生物等因素的作用,结合国内外常用的实验装置及化学物质检测装置,阐述并分析了碳酸盐和硫酸盐的沉淀物淤堵和铁离子化合物沉淀及絮凝淤堵这2种化学淤堵机制。在此基础上,对一些工程的淤堵进行了预测,给出了化学淤堵的防治措施,提出了未来研究的方向。As a good drainage material,geotextile is widely used in engineering field.With the increase of time,the chemical clogging of geotextile becomes more and more obvious.To explore the mechanism of chemical silting of geotextiles and reveal the process of chemical silting of geotextiles will play a positive role in improving the engineering efficiency of geotextiles.By analyzing the influencing factors of chemical silting of geotextiles,the role of ion composition,pH value,soil microorganisms and other factors in soil and water was emphatically explored.Combined with the commonly used experimental devices and chemical detection devices at home and abroad,the two chemical blockage mechanisms of carbonate and sulfate sediment blockage and iron ion compound precipitation and flocculation blockage were described and analyzed.On this basis,the siltation of some projects was predicted,the prevention measures of chemical siltation were given,and the future research direction is proposed.

关 键 词：无纺土工织物 化学淤堵 影响因素 形成机制 防治 

分 类 号：TU531.7[建筑科学—建筑技术科学]