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莲花水电站工程共需成品混凝土骨料７１．０１万ｍ３，浇筑５１．５３万ｍ３混凝土。采用的天然砂石料由设在大坝下游左岸的１座生产能力为４２０ｍ３／ｈ的砂石骨料筛分系统生产。考虑到工程所需混凝土部位，确定为大坝下游左、右岸各设一处混凝土拌和系统，其所需骨料均由左岸筛分场供应。混凝土骨料和混凝土生产，通过招议标方式确定分别由中国水利水电第一工程局和第六工程局承担。经过两年多的实践证明，只要总体生产程序、制度、方法、合同条款明确由两个单位分别承担骨料和混凝土生产，就可以发挥互相促进、互相监督、互相制约的作用，使得生产的产品质量、数量均能保证工程建设的需要。
Total project of Lianhua Hydropower Station requires 710,100 m3 of concrete aggregate and 515,300 m3 of concrete. The natural gravel used was produced by a gravel aggregate screening system with a production capacity of 420m3 / h on the left bank downstream of the dam. Taking into account the concrete site required for the project, it is determined that there is a concrete mixing system at each of the left and right banks downstream of the dam. All the aggregates required are supplied by the screening area on the left bank. Concrete aggregate and concrete production, through the bidding method to determine the first by the China Water Conservancy and Hydropower Engineering Bureau and the Sixth Engineering Bureau. After more than two years of practice, it has been proved that as long as the overall production procedures, systems, methods, and contractual provisions explicitly assume that both units take the aggregate and concrete production respectively, they can play the role of mutual promotion, mutual supervision and mutual restraint so that the products produced Quality, quantity can ensure the construction needs.