旁多水利枢纽坝体砂砾石过渡料现场控制

Field control of sandy gravel transition material for dam body of Pangduo hydro-junction

旁多水利枢纽工程大坝为碾压式沥青混凝土心墙砂砾石坝,心墙两侧设置砂砾石过渡料,通过砂砾石过渡料现场碾压工艺性试验,确定现场施工参数和施工方法,进而确定现场砂砾石过渡料的质量铺设控制指标,为整个大坝过渡料填筑碾压施工和质量控制提供依据。

The Pangduo hydro-junction dam is the roller compacted asphalt concrete core wall gravel dam, and the sandy gravel transition material is set out at the both sides of the core wall. Through the field roller technological tests of the sandy gravel transition material, the parameters of field construction and the construction methods are determined, then the control index of field laying quality for the sandy gravel transition material are also determined, which could provide the basis for the roller construction and quality control of the transition material filling for the whole dam.