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1概述马湾拦河闸位于沙河上游漯河市舞阳县马湾村,拦蓄沙河水,控制流域面积1．19万km~2。设计标准为50年一遇,闸上水位69．02m,流量2850m~3/s;校核标准为200年一遇,闸上水位70．42m,流量3000m~2/s;设计正常蓄水位65．92m,相应蓄水量2000万m~3,设计灌溉面积1133万hm~2。同时在水闸右岸建有小型电站一座,装机1600kW,年发电量250万kW·h。沙河马湾拦河闸自建成投入运行以来,左岸下游翼墙扭曲面(浆砌石)及下游护坡下部局部在六七十年代就出现除原设
1 Overview The Ma Wan Barrier is located in Ma Wan Village, Wuyang County, Luohe City, which is located in the upper reaches of Shahe River. It has a total area of 11,900 km2. The design standard is 50 years. The water level at the gate is 69.02m and the flow rate is 2850m ~ 3 / s. The checking standard is once in 200 years. The gate water level is 70.42m and the flow rate is 3000m ~ 2 / s. 65.92m, the corresponding water storage 20 million m ~ 3, design irrigation area of 11.33 million hm ~ 2. At the same time in the right bank built a small power station, installed 1600kW, annual generating capacity of 2.5 million kW · h. Since the completion of the Shahe Ma Bay Barrier, the distortion of the wing wall (masonry) at the lower reaches of the left bank and the lower part of the downstream slope have appeared in the sixties and seventies except the original design