摘要
王家河水电站拦水坝为混凝土面板堆石坝,采用侧槽式溢洪道自由泄洪,工程区河床砂砾石料丰富,枢纽建筑物开挖料较少,大坝填筑料主要为上下游河床砂砾料。初步设计时趾板建在砂砾层上,在技施设计阶段,通过回填混凝土的方式将基础置于基岩上,确保了趾板的稳定性。采用河床砂砾料经筛分做垫层料,减少了施工工序。在面板堆石坝坝体填筑中,有效利用枢纽建筑物和料场开挖的风化料、软岩料。该工程的设计对于其他采用风化料建坝的类似工程具有参考价值。
Wangjiahe Hydropower Station Retaining Dam belongs to concrete panel rock fill dam.Side channel spillway is adopted for free flood discharge.The project area riverbed has rich gravel stone.Water control building has less excavation.Upstream and downstream riverbed gravel materials are mainly used for filling the dam.The toe board is constructed on gravel layer during preliminary design.Foundation is placed on bedrock through the mode of backfilling concrete,thereby ensuring stability of toe board in the technical construction design stage.Riverbed gravels are screened and used as cushion material so as to simplify the construction process.Water control building as well as weathered material and soft rock material excavated from material fields are effectively utilized in panel rock fill dam filling.The design of the project has reference value on other similar projects adopting weathered material for constructing dams.
出处
《中国水能及电气化》
2014年第8期47-49,57,共4页
China Water Power & Electrification
关键词
面板堆石坝
堆石料
溢洪道调整
panel rock-fill dam
rock-fill material
spillway adjustment
