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抽沙充填长管袋褥垫沉排坝是黄河下游河道整治中探索不抢险或少抢险坝的一种新的坝型结构。利用长管袋沉排体护底、护根,是于坝前设计河床范围内覆盖一保护层,以阻止水流在坝前形成较大冲刷坑,或迫使冲刷坑外移,避免河床冲刷坑危害坝基。论述了泥浆泵自滩地或河床抽吸泥沙进行冲填长管袋褥垫施工的工艺流程,分析了其优缺点,对新坝型的推广有一定作用。
Sand pumping filling long tube bag cushion sediment drainage dam is the Yellow River lower reaches of the river to explore no rescue or less rescue dam a new type of dam structure. The use of long tube bags Shen body protection bottom, root protection, is in the design of the river bed cover a protective layer to prevent water flow in front of the dam to form a larger scour pit, or to force the scouring pit relocation, to avoid the scouring of the riverbed damage Dam foundation. Discusses the mud pump from the beach or riverbed suction sediment for filling long tube bag mat construction process, analysis of its advantages and disadvantages, the promotion of new dam type has a certain role.