碾盘山水利水电枢纽工程河道采砂论证浅析

Instream Sand Mining in Nianpanshan Water Conservancy and Hydropower Project

碾盘山水利水电枢纽工程是国务院确定的172项节水供水重大水利工程之一。为减少工程投资,确保工程建设质量和进度,筑坝砂石料通过汉江河道采砂解决。采砂量在湖北省工程性采砂中最大。为减少不合理采砂给河势、防洪、通航、水生态环境等带来的不利影响,科学、合理、有序和可持续开采江砂资源,通过分散采区、优化可采区控制性指标、合理安排作业方式、加强采砂监管、采取航道维护和水上交通安全等补救措施,确保了河道砂石资源的可合理利用,取得了良好的社会、经济、环境、生态效益。

Nianpanshan Water Conservancy and Hydropower Project is one of the 172 major water conservancy and water supply projects determined by the State Council.In order to reduce the project investment and ensure the construction quality and progress,the sand and stone materials of the dam are planned to be mined from the Hanjiang River,and the sand mining amount of this project is the largest among the engineering sand mining works in Hubei Province.In order to reduce the adverse effects of improper sand mining on river regime,flood control,navigation and water eco-environment,scientific,proper,orderly and sustainable instream sand mining should be ensured.Remedial measures such as scattering of the mining areas,control index optimization of the mining areas,reasonable arrangement of operation modes,strengthening of the supervision work,navigation channel maintenance and water traffic safety management are proposed and implemented,which ensure a reasonable and sustainable utilization of the instream sand resources and achieve satisfactory social,economic,environmental and ecological benefits.