It is a non - propelled crane ship after conversion , operating in ports and calm waters , deploying towing in chinas coastal class ii navigational area and suitable for salvage of sunken ships , harbour construction , lifting of bridge beams sections for erection , loading unloading heavy cargoes as well as offshore oil drilling production platform and other offshore hook - up 本船改建后为非自航固定式起重船，以港口及平水区域作业为主，可在我国沿海ii类航区中调遗拖航，适用于打捞船舶港口建设桥梁吊装装卸重大物件，以及海上石油钻井采油平台和其他海上吊装工程。
Abstract : based on the research , development and experiment of a prototype of mobile offshore platform with negative pressure bucket foundation , the operating principles of towing positioning , grounding , floating and shifting of such type of platform in shallow beach sea are described and discussed . it has been shown that this type of platform has the advantage of having remarkable stability in floating and towing when an internal sack is fitted inside of the bucket foundation 文摘:结合可移动钢制桶型负压基础先导试验平台的研制与试验，论述了该型平台在滩海浅水域的拖航、就位、坐底及起浮移位的工作原理，说明了钢制桶型负压基础在加入内囊后具有的可移动优势以及该型平台在我国滩海油田开发中广阔的应用前景。
