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我市的小型水闸多数是建在软土地基上,而这些地基土质的标准贯入击数只有一击或少于一击,内摩擦角φ值在6°～10°,内聚力C值在0.08～0.10公斤/厘米~2,在这种软土地基上修建水闸,一般要进行地基处理。由于小型水闸挡水水头低孔径小,建造数量多等特点,为了降低造价,设计时都设法在结构型式上作一些改革,而尽量避免地基处理以求降低造价和便利施工。本文根据我市已建小型水闸的情况,对闸底板选型方面作一些探讨,以供参考。
Most of the small sluices in our city are built on soft soil foundation, and the standard penetrations of soil in these foundations are only one-shot or less than one-shot, the internal friction angle φ is between 6 ° and 10 °, and the cohesion C is between 0.08 ~ 0.10 kg / cm ~ 2, in the construction of such soft soil sluice, the foundation should generally be treated. Due to the small aperture of the small sluice gate and the large number of structures to be constructed, in order to reduce the cost, some attempts have been made to make some changes in the design of the structure while trying to avoid the foundation treatment in order to reduce the cost and facilitate the construction. This article according to the city has built a small sluice situation, the gate plate selection for some discussion for reference.