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1 概述陆浑东一干渠自汝阳县内埠分水枢纽引水,经汝阳、伊川、偃师、巩义4县(市)至坞罗水库,全长105.6km,设计渠首引水50m~3/s。东一干渠上段自内埠分水枢纽至山张隧洞进洞口,总长49.448km,共有渡槽4座(1691.85m),隧洞8条(4786.1m),涵洞65座,节制闸6座,退水闸6座,各类桥梁98座,已护砌渠段10.38km,设计灌溉面积3167hm~2,实灌面积1313hm~2。上段渠道在负责自身灌溉需求的同时,还肩负着向下游偃师、巩义输水和伊川二电、三电厂调节水库供水的任务,且每年农业灌溉通水3～5次,向两个调节水库补水6～8次,通水任务异常艰巨。东一干渠位于豫西丘陵地区,多年平均降水在630mm 左右,气温在-10～40℃之间,干渠冬季通水时,渠内经常结冰,且厚度可达15cm,冰块常在桥梁、渡槽、隧洞、倒
1 Overview Luhun East a main canal from Ruyang Neibu Diversion Project diversion, through Ruyang, Icheon, Yanshi, Gongyi 4 counties (cities) to the dock Luo Reservoir, a total length of 105.6km, the design of the diversion channel 50m ~ 3 / s. There are 4 aqueducts (1691.85m), 8 tunnels (4786.1m), 65 culverts, 6 control gates and 4 retreat gates. The total length of the tunnel is 49.448km. Block, all kinds of bridges 98, has been dredging canal section 10.38km, design irrigation area of 3167hm ~ 2, real irrigation area of 1313hm ~ 2. The upper channel is responsible for irrigation needs at the same time, it also shoulders the downstream Yanshi, Gongyi water and Ichikawa two, three power plants to adjust the reservoir water supply tasks, and agricultural irrigation each year 3 to 5 times the water to the two regulating reservoir Replenishment 6 to 8 times, unusually difficult task of water. The East Main Canal is located in the hilly area in the west of Henan Province. The mean annual precipitation is about 630mm and the temperature is between -10 and 40 ℃. When the dry-channel passes through the water in winter, the canal often ices and the thickness is up to 15cm. Aqueduct, tunnel, inverted