4.2 Earth-rockfill cofferdam

4.2.1 Local materials and excavated rock materials shall be used inpriority for earth-rock fill cofferdam, because of their goodadaptability with the foundation, convenience for construction,dismantle and flood control.4.2.2 The type of cofferdam and impe ......（本文共 2916 字 ）     [阅读本文] >>