太浦闸拆除重建工程规模分析

Analysis of reconstruction scale in Taipu sluice project

太浦闸是环太湖大堤重要口门控制建筑物,其工程任务为防洪、泄洪和向下游地区、上海市供水。运行四十多年,鉴定太浦闸为三类闸,必须进行除险加固,进一步增加泄洪能力,改善太湖流域水环境。经太浦闸规模计算方案,针对闸下河道和闸上引河浚深对太浦闸过水影响分析论证,规划河道规模下,随着闸规模的扩大,闸孔面积逐渐增加,闸的过流能力也随之增加,从与规划河道匹配和满足规划泄流以及经济性方面,太浦闸规模为闸孔净宽120 m、闸槛高程-1.5 m是最合适的。

Taipu sluice is an important gate control building of dyke around the Taihu Lake, the tasks include flood control, flood release, water supply to Shanghai and other downstream area. After operating for more than 40 years, Taipu sluice is appraised as a third kind dangerous sluice. Reinforcement is required for increasing the capacity of flood discharge and improving the water environment in Taihu Lake Basin. The scale calculation scheme of Taipu sluice shows that ： in planning river scale condition, with the expansion of the scale of the sluice, sluice hole area is gradually increasing, capacity of gate flow is increasing. Considering the situation of matching the river planning, satisfying the planning discharge and economic condition, sluice hole width of 120 m, sluice sill height of -1.5 m is the best scale.