玉林市龙云灌区蟠龙水库二期导流设计OA

The construction diversion cofferdam,through its comprehensive roles in retaining water,diverting flow,and providing flood protection,enables construction that would otherwise be underwater to be carried out in dry con-ditions or under controlled water levels.It is therefore an essential temporary facility for ensuring the safety,quality,and progress of the main works.Taking the Phase II cofferdam of the Panlong Reservoir as an example,this paper demonstrates that through comprehensive evaluation of hydrogeological conditions,project scale,construction schedule,and feasibility of future demolition,the design successfully achieved the objectives of providing temporary water retention while ensuring safety and reliability,supporting the main project,and minimizing the costs.