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圩口闸是里下河低洼易涝地区用于圩口挡洪的小型水工建筑物.圩口闸在技术上过去主要是围绕闸门与启闭方式等方面进行改造,边墙与翼墙依然均为块石砌筑的重力式挡土墙结构。由于这种型式的墙体施工质量难控制,不少圩口闸未能经受住1991年大水的考验。重力式墙体结构的砌筑量大,工程材料投入多,劳动强度大,投劳用工多,加以施工周期长,是加快圩口闸建设的一大难题。从1991年大水的实践检验得知,以往圩口闸的设计标准偏低,所挡的外河设计水位应从+3.0m(废黄河口基面)提高至+4.0m,因而重力式墙体结构对地基的要求更高,造价也更大。于是我们从1992年开始在圩口闸的建设
Wei mouth gate is the Lixiahe low-lying waterlogging area for the Wei flood gates of small hydraulic structures. Wei mouth gate in the past, the technology is mainly around the gate and opening and closing methods and other aspects of the transformation, the wall and the wing wall remains All of them are masonry gravity retaining wall structures. Due to the difficulty in controlling the quality of construction of this type of wall, many Weikou gates failed to withstand the test of flood in 1991. Gravity wall structure of large amount of masonry, engineering materials into more labor intensity, labor more labor, to be a long construction period, is to speed up the construction of a large mouth Wei dam problems. According to the practice test of flood in 1991, in the past, the design standard of the flood gate was low and the design water level of the outlying river blocked should be increased from + 3.0m (base of waste Yellow River Estuary) to + 4.0m. Therefore, the gravity wall The structure of the foundation of the higher requirements, the cost is also greater. So we started in 1992 weixue gate construction