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1 概况石山口水库位于淮河流域竹竿河支流小潢河的上游,坝址在河南省信阳市罗山县子路镇石山口村附近。控制流域面积306km~2,最大坝高25.62m,总库容3.72亿 m~3,属大(Ⅱ)型水库;泄洪闸位于主坝右侧800m 的方冲凹地,泄洪闸为带胸墙孔口式宽顶堰,堰顶高程70.00m,设3孔宽10m×高7m 弧形钢闸门,最大泄量1694m~3/s。场区属堆积剥蚀丘陵区,两岸岩石裸露,丘陵标高多在85～100m,山脊比较单薄,山坡坡度约10°～25°,冲沟较多,沟
1 Overview Shishankou Reservoir is located in the Huaihe River bamboo tributary of the small Huanghe upstream, dam site in Xinyang City, Henan Province, Luo Shanxian Shizhakou Village near the village. The control basin covers an area of 306km ~ 2, with a maximum dam height of 25.62m and a total reservoir capacity of 372 million m ~ 3, belonging to a large (Ⅱ) type reservoir. Wide crest weir, crest elevation 70.00m, set 3 hole width 10m × 7m high arc steel gate, the maximum discharge of 1694m ~ 3 / s. The plot area is a pile of denudated hilly areas, both sides of the rock bare, hilly elevation mostly in 85 ~ 100m, the ridge is relatively thin, slopes of about 10 ° ~ 25 °, more gully, ditch