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本文将门叶和支腿看作２个独立的平面结构，对表孔三支腿弧形闸门进行了优化理论分析和实践设计，取得了合理的闸门结构型式．
In this paper, the door leaf and the outrigger are regarded as two independent planar structures. The theoretical analysis and practical design of the three outrigger arc gate of the hole are carried out, and a reasonable type of gate structure is obtained.