原有地面形态被平盘与边坡相间的梯状地形所代替，5～10年间非均匀沉降剧烈，边坡不稳；
The original topographic appearance was substituted by terraced slopes, resulting in severe uneven subsidence during 5~10 years and instability of steep slopes.
在仍利用原有土建基础的前提下，按照高效沉降槽技术改进传统沉降槽结构，选用高效絮凝剂，增加絮凝剂加入点。
On the premise of original foundation, it modifies the structure of the settler according to efficient settler technology, chooses efficient flocculant, increases addition points.
采用压浆钢管桩技术加固原有基础，使结构不再继续发生不均匀沉降。
The technique of the steel tube stake grouted with cement paste is used to consolidate the ground.
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