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为优化丹江口大坝加高工程设计,确保工程质量,按照国标及规程、规范的要求,对心墙防渗料和坝壳砂砾石料进了工程特性试验研究。结果表明:五峰岭、陈家港及艾家沟料场中土料的现有贮量及质量满足防渗料的使用要求,大部分土料可在天然含水量下直接使用;羊皮滩料场砂砾料P5含量约80%～90%,达密实状态后是较好的坝壳材料。在此研究基础上,提出了相应的填筑控制参数和设计指标的建议值。
In order to optimize the engineering design of Danjiangkou dam heightening project and ensure the project quality, according to the requirements of national standard and regulations and norms, the engineering characteristics of core wall impervious material and dam shell gravel material were studied. The results showed that the existing storage and quality of the soil materials in the Wufengling, Chenjiagang and Aijiagou fields satisfied the requirements of the seepage control material. Most of the soil material could be directly used under the natural water content. Sand gravel material P5 content of about 80% to 90%, up to a solid state dam shell material is better. On the basis of this study, the corresponding recommended values of control parameters and design indexes are proposed.