混凝土衬砌与土工膜铺设对渠道建设及运行的影响

Influence of Concrete Lining and Geomembrane Laying on Canal Construction and Operation

随着中国人口城镇化水平提高、工农业发展速度加快、黄河年径流量减小且引黄灌区新改扩及续建配套工程不断上马,引黄灌区引水用途多样化、灌区供需矛盾尖锐化等特性凸显。如何缓解水资源短缺,实现长距离输水调水及提高渠道输水能力对保障灌区下游用水至关重要。文章结合赵口引黄灌区二期工程建设,通过对渠道实行混凝土衬砌,同时铺设土工膜对渠道输水能力进行分析,为提升引黄灌区下游用水保障提供方案参考。

With the improvement of China’s population urbanization level,the acceleration of industrial and agricultural development,the reduction of the annual runoff of the Yellow River,starting of new reconstruction,expansion and continued construction of auxiliary projects in the Yellow River irrigation area,the diversion uses of the Yellow River irrigation area are diversified and the contradiction between supply and demand in the irrigation area is sharpened. How to alleviate the shortage of water resources,to realize long-distance water transfer and improve the capacity of water transfer capacity is very important to ensure the downstream water use in the irrigated areas. Combined with the construction of the second phase of the Zhaokou Yellow River Irrigation Zone,this paper analyzes the water transporting capacity of the channel through the concrete lining and the laying of geomembrane at the same time,so as to provide a scheme reference for improving the water supply in the downstream of the Yellow River Irrigation Zone.