摘要
为了定量分析潮白河生态补水过程中的水量损耗规律,确定河道砂石坑的蓄水量和水头演进过程的影响,通过构建MIKE 11水动力学模型,模拟2021年潮白河的生态补水过程。模拟结果表明,河道分段渗漏量在0.4%/km~9.9%/km的范围内变化,牛栏山橡胶坝上游干流的砂石坑总蓄水量达5800万m^(3),牛栏山橡胶坝蓄水量为1900万m^(3),向阳闸蓄水量为1000万m^(3),砂石坑蓄水量占总渗漏损失的48%,河道渗漏量占总损耗52%,河道渗漏量从上游至下游逐渐减少,补水1个月之后河道基坑、牛栏山橡胶坝与向阳闸均有蓄水。本研究生态补水过程模拟分析可为今后潮白河综合治理与生态修复探索提供技术支撑。
In order to quantitatively analyze the water loss law in the ecological water supplement pro⁃cess of Chaobai River and determine the influence of the water storage of river sand and gravel pit and the evolution process of water head,Mike 11 hydrodynamic model was constructed to simulate the ecological water supplement process of Chaobai River in 2021.The simulation results showed that the sectional leak⁃age of the river varies in the range of 0.4%-9.9%/km.The total water storage of the sand and gravel pit in the upstream main stream of Niulanshan rubber dam is 58 million m^(3),the water storage of Niulanshan rubber dam was 19 million m^(3),and the water storage of Xiangyang gate was 10 million m^(3).The water storage of the sand and gravel pit accounts for 48%of the total leakage loss.The river leakage accounts for 52%of the total loss,and the river leakage gradually decreased from upstream to downstream.After one month of water supplement,the river foundation pit,Niulanshan rubber dam and Xiangyang sluice all have water storage.The simulation analysis of ecological water supplement process in this study can pro⁃vide technical support for the exploration of comprehensive treatment and ecological restoration of Chao⁃bai River.
作者
陈鹏
黎光和
贾强
王欣
申健
杨默远
CHEN Peng;LI Guanghe;JIA Qiang;WANG Xin;SHEN Jian;YANG Moyuan(Beijing Water Resources Management Center,Beijing 100195,China;Xi'an University of Technology,Xi'an 710048,China;Beijing Waterworks Group co.,LTD 100031,China;Beijing Water Science and Technology Institute,Beijing 100048,China)
出处
《北京水务》
2021年第6期31-36,共6页
Beijing Water
基金
科技基础资源调查专项(2017FY100404):“京津地区地下水饮用水源地基础环境调查与监测”。
关键词
生态补水
水动力模型
河道蓄水
ecological water supplement
hydrodynamic model
river water storage
