A.4,1‰~3‰ B.4,1‰~2‰ C.5,1‰~3‰ D.5,1‰~2‰
A.現(xiàn)澆混凝土護(hù)壁 B.沉井護(hù)壁 C.鋼套管護(hù)壁 D.磚護(hù)壁 E.泥漿護(hù)壁