Indoor floating dock

The invention discloses an indoor floating dock. The both sides over a dock bottom are each provided with a dock wall. The dock bottom and the dock walls are all box-shaped structures. A closed workshop is installed over the dock walls on both sides. Three indoor bridge cranes are provided. An 800-1200 ton portal crane is installed on the dock walls and in the workshop. Assembly, welding, painting, and lifting operations in the floating dock are not affected by outdoor weather such as wind, rain, snow and the like, which greatly improves production efficiency, solve the insufficient draught oflarge ships in a dry dock, and effectively prevent the dust from drifting and polluting the environment after hull sand blasting. In typhoon weather, the indoor floating dock is dragged into the drydock to be fixed, which can realize the anti-typhoon operation of a project under construction. 本发明公开了一种室内浮船坞，坞底上方两侧各设置一个坞墙，坞底和坞墙均为箱型结构；两侧的坞墙上方装设封闭式车间厂房，配设三台室内行车；坞墙上、车间厂房内配设一台800-1200吨龙门吊机。本发明浮船坞内装配、焊接、涂装、吊装等作业过程不受大风、雨、雪等室外天气的