三峡工程砂石料源优选

Optimizing Sand and Aggregate Sources of the Three Gorges Project

三峡工程规模巨大、技术复杂、务艰巨、工期紧迫，但设计论证得充分细致、严谨可靠。砂石料源优选及方案论证是施工专题的重要内容，各有关部门和有关专家作了大量研究，最终得出了比较经济合理的方案。

The designs and arguments must be careful and reliable for a large sized project,complicated technologies and a short construction period of the said works. Optimization of the sand and aggregate sources is the important of special construction subject. A more economic and reasonable scheme has been obtained after lots of researches by relative departrnents and specialists.