涝渍土壤发生在地势平坦或排水不畅的地区。

Waterlogged soils occur in areas that are flat or have poor drainage.

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当沉积土达容量的50％时，清理沉积泥土；当沉淀池排水不畅时，清理或替换砂砾；

Sedimentary soil shall be cleared when reaching 50% of the capacity. Sedimentation tank shall be cleaned or sand therein shall be replaced in case of drainage difficulty.

youdao

大堤开裂的主要原因为背河侧放淤、淤背施工过快、湿化变形、排水不畅、堤顶堆载、车辆作用等。

The main factors are reinforcing dike with silt, construction in high speed, soak deformation, poor drainage, stacking load at the tip of dike, impact of vehicle and so on.

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