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运用动电技术在衬垫两侧施加电场,通过重金属电渗透和电迁移作用能够有效地降低污染物向下迁移,达到减小黏土衬垫厚度、增加库容以及延长黏土衬垫的使用寿命。为了有效模拟动电技术于垃圾填埋场衬垫层的运用机理,开发出具有水力系统、加电系统和监测系统的室内黏土动电修复模拟试验装置。该装置结构简单,操作方便,能很好地模拟动电施加过程,可观测渗流场、浓度场与动电场共同作用下衬垫系统内重金属离子的迁移性状,可用来研究参数变化对动电修复效果的影响。利用该装置的获得试验结果与计算结果非常吻合,验证了该试验装置的有效性。 相似文献
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Axisymmetric fundamental solutions that are applied in the consolidation calculations of a finitecaly clay layer with impeded
boundaries were derived. Laplace and Hankel integral transforms were utilized with respect to time and radial coordinates,
respectively in the analysis. The derivation of fundamental solutions considers two boundary-value problems involving unit
point loading and ring loading in the vertical. The solutions are extended to circular distributed and strip distributed normal
load. The computation and analysis of settlements, vertical total stress and excess pore pressure in the consolidation layer
subject to circular loading are presented.
Project (No. 500117) supported by the National Natural Science Foundation of Zhejiang Province 相似文献
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INTRODUCTIONBiot’sconsolidationtheorywasproposedin1 941fromcontinuousmediumfundamentalequations.Thetheorytakingintoaccountthecouplingbetweenthesolidstrainsandporepres suredissipationiscalled“coupledconsolidationtheory” .Thesolutionofgoverningequationso… 相似文献
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