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1998年长江发生全流域性大洪水,长江中下游堤防累计出险7万多处,对堤防安全构成极大威胁,有的甚至导致堤防溃决。为了确保堤防工程的安全,汛后开展了大规模的堤身与堤基截渗处理,处理的主要施工方法有防渗墙、高喷灌浆、垂直铺塑、钢板桩等类。本文对堤身与堤基截渗处理方法进行综述。
In 1998, a flood in the whole basin occurred in the Yangtze River. The accumulation of more than 70,000 dikes in the middle and lower reaches of the Yangtze River poses a great threat to the safety of embankments, and some even lead to the collapse of dikes. In order to ensure the safety of the embankment project, a large-scale embankment and embankment infiltration treatment has been carried out after the flood season. The main construction methods of the embankment are anti-seepage wall, high-pressure grouting grout, vertical spreading and steel sheet pile. This article reviews the embankment and embankment cutoff treatment methods.