The plane casting technology of the high chromium/carbon steel composite plate(thckness 40 mm)was studied,and the strength of this composite was checked.

00 m was concrete of Grade C30 and F300,considering the tight construction schedule and high quality demand of the project,it was not allowed to place the second lift of concrete for the height in the designs,therefore,the construction technology for underwater pouring of frost resistance concrete was adoped and satisfactory resul.