摘要
通过对旧河道的生态综合治理,在保证河道防洪的前提下,减少河道水土流失,还可以使原河道形成层次分明、错落有致景观。以某小型河道生态综合治理为例,河道设计断面形式为梯形,底宽16 m,边坡高3 m,设计水深2 m,采用1∶3土质边坡。河道两岸防洪水位以下采用宾格石笼边坡护砌,河道冲刷深度总深度0.63 m;拦河坝坝宽10 m,坝高1.5 m,坝体抗滑稳定安全系数均满足要求。
Through the ecological comprehensive treatment of the old river course,on the premise of ensuring the flood control of the river course,the water and soil loss of the river course is reduced,and the original river course can also be formed into a layered and scattered landscape.Taking a small river for ecological comprehensive treatment as an example,the design cross section of the river is of trapezoid bottom width of 16 m,slope height of 3 m,design water depth of 2 m,and 1∶3 soil slope.Binge gabion slope is used to protect the water level below the flood control water level on both sides of the river.The total depth of river scour is 0.63 m.The dam is 1.5 m high and 10 m wide.The safety factor of anti sliding stability of the dam body meets the requirements.
作者
刘志宏
LIU Zhi-hong(Suizhong Water Affairs Service Center,Huludao 125200,Liaoning,China)
出处
《水利科技与经济》
2020年第9期80-82,95,共4页
Water Conservancy Science and Technology and Economy
关键词
河道治理
河堤设计
宾格石笼
抗滑
river regulation
dike design
binge gabion
anti sliding
