The retaining and protection structure for this deep excavation was concretediaphragmwall supported by plane concrete frame inside.
深基坑支护结构为外部钢筋混凝土地下连续墙，内部设多道钢筋混凝土水平框架内支撑。
3
Grabbed thin plastic concretediaphragmwall (abbreviated as GTDW hereinafter) is a new technology of vertical anti-seepage developed for levee strengthening of the Changjiang river.