岷江龙溪口航电枢纽工程弃渣减量优化

大型水利水电开发建设项目施工期具有占地大、施工作业面积广、土石方开挖量大的特点，建设过程中不可避免对生态造成影响，如何减少施工期弃渣带来的生态环境的不利影响成为一种挑战。为此，以岷江龙溪口航道枢纽工程施工期采取的生态保护措施为例，研究表明：在施工期优化施工工艺、施工区布置、施工工序等可有效减少弃渣产生量。在此基础上，提出了弃渣减量和弃渣资源化利用途径，可为国内其他规划和航电枢纽在建项目的生态措施提供借鉴。

Waste slag reduction of Minjiang Longxikou Navigation-power Junction project

Large-scale water conservancy and hydropower development and construction projects have the characteristics of large land occupation,wide construction area,and large excavation volume of earth-rock,which will inevitably cause ecological impact during construction.How to reduce the adverse ecological impact caused by waste slag during construction is a challenge.With the ecological protection measures taken during the construction period of Mingjiang Longxikou Navigation Junction project as an example,the practical results indicate that measures including optimizing construction techniques,layout of construction areas,and construction processes during the construction period can effectively reduce the amount of waste slag.On this basis,this paper proposes ways for reducing and recycling waste slag,which can provide a reference for the ecological measures that should be taken during the construction period of other planned and under-construction navigation power junction projects in China.