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根据面板堆石坝堆石体结构的特点和一般要求,选取其抗剪强度高,低压缩性和渗透稳定性好的硬质岩石和中硬岩石为面板堆石坝的堆石料。其料源的选取,首先要优先考虑充分利用枢纽建筑物开挖的石碴料作为主选料场,这样可大幅度降低工程造价,提高工程进度。在充分利用开挖料的前提下,不足部分由石料场补足。提出了对开挖料和石料场选取利用应注意的几个问题。
According to the characteristics and general requirements of the rockfill structure of CFRD, hard rock and medium-hard rock with high shear strength, low compressibility and infiltration stability are chosen as the rockfill materials of the rockfill dam. The selection of material sources, we must give priority to taking full advantage of the excavation of the hub building ballast materials as the main material yard, which can significantly reduce project costs and improve the progress of the project. In full use of excavation material under the premise of the inadequacies by the stone field make up. Several problems that should be paid attention to in selecting and using excavated material and stone material field are put forward.