堆石混凝土及堆石混凝土大坝

Study on rock-fill concrete dam

本文提出一种新的大体积混凝土施工方式,即以自密实混凝土在堆石体中流动充满堆石体形成完整的混凝土,简称堆石混凝土。文中简述了堆石混凝土的优点,介绍了堆石混凝土试验,试验结果证明自密实混凝土在堆石体中有良好的流动性能,利用自密实混凝土填充堆石体,可以得到具有良好密实性和高强度的堆石混凝土。本文还结合堆石混凝土的特点,建议了几种充分发挥堆石混凝土优点的新坝型:堆石混凝土拱坝/重力坝、堆石混凝土心墙堆石坝和堆石混凝土混和坝。

A new type of concrete namely rock-fill concrete （RFC） is proposed. The concrete is constructed by pouring the self-compacting concrete into the rock-fill body. Laboratory test results show that by using this technology a dense and high strength concrete structure can be easily constructed. The possible new types of dam based on this technology, namely RFC arch dam/gravity dam, RFC Core Rockfill dam and RFC Mixing dam, are investigated.