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1 概述白龟山水库主坝址下游9km处的沙河河道,有一半径约为500m的凹形大弯庭——梁李弯庭。险工段位于河道北岸弯道顶部,总长700m。河岸土质属轻粉质壤土,一遇洪水,坍塌严重,已逼近北岸河堤,最近约8m。水库开闸泄洪,很可能在此形成决口,直接危及平顶山市区及下游群众的生命财产安全。1991年来,经多次采用土工布结合生物措施治理,该段险情已基本得到控制。10多年来,该工程经住了多次洪水的考验,取
1 Overview The Shahe River at 9 km downstream of the main dam site of the Baiguishan Reservoir has a large concave bend - Liangliuetun with a radius of about 500m. Dangerous section is located at the top of the curve of the north bank of the river, with a total length of 700m. The riparian soil is a light silty loam, a flood, collapse serious, has approached the North Bank embankment, the recent about 8m. Reservoir flood discharge gate opening is likely to form a burst here, directly endangering the lives and property of Pingdingshan city and the downstream masses. Since 1991, after many times the use of geotextiles and biological measures to control, the danger has been basically under control. For more than 10 years, the project has survived many flood tests