长江江堤及九江溃口段复堤渗流控制与地基处理设计

Design on Seepage Control of Reinstatement and Foundation Treatment on Levee Break Area of Jiujiang in Changjiang

总结了九江江堤溃口段复堤设计经验。阐述堤防地基渗流控制应确保有一定渗径长度，防止产生渗透破坏，减少作用在防洪墙底板上的扬压力。采用迎水侧具有隔渗作用的格栅状深层搅拌桩结构，可提高地基承载力，消除不均匀沉降，确保地基抗滑及抗渗稳定。

Summing up the experience of design and bank reinstatement in levee break area in Jiujiang, thepaper points out that certain seepage distance should be kept in seepage control of levee foundation to avoidseepage destructiveness and reduce the hydraulic uplift pressure on the flood prevention wall support. Byadopting grated deep agitation pile structure which insulates scepage in upstream face, bearing of foundation can be improved, uneven settlement can be eliminated and sliding &. seepage resistance of foundationcan be assured.