在码头施工中,打桩是工程的一个关键.长期来采用的是普通经纬仪在陆上指挥打桩船定位的方法.陆上摇旗呐喊,船员心中无数,完全处于被动局面.工人同志说:‘它好象竹杆儿引瞎子,牵着跑.”用这种方法定位,时间长,精度低,夜间不能施工. In the wharf construction, piling is a key part of the project.For a long time, the method of using ordinary theodolite to direct the piling boat on the land has been put forward.The cry of land waving, the innumerable heart of the crew, is completely in the passive position.Marine workers said: Bamboo blind lead blind, holding run. "Positioning with this method, a long time, low accuracy, construction at night can not.