陡边坡面板混凝土滑模施工技术研究

Technologic research for slip-form construction of facing concrete on steep slope

对于混凝土面板堆石坝而言,堆石坝上下游坡比一般在1∶1.3~1∶1.7之间,其面板混凝土采用无轨滑模施工已是相当成熟的一项技术措施了。但西龙池抽水蓄能电站下水库库岸边坡坡比为1：0.75,在这样高、陡边坡情况下,如库岸面板混凝土采用无轨滑模进行施工,将可能带来一系列的特殊技术问题。经分析研究并通过现场试验,证明在1∶0.75的高、陡边坡情况下,采用一定的特殊措施,其面板混凝土仍可成功实施无轨滑模施工技术。

For concrete faced rockfill dam,the slope of upstream and downstream is generally 1:1.3—1:1.7.The no-rail slip-form construction technology for facing concrete has been a ripe technological measure.But for Xilongchi pumpedstorage power station,the slope of lower reservoir bank is 1:0.75,for such high and steep condition,adopting no-rail slip-form construction technology for facing concrete on reservoir bank may bring about some special technologic problems.Through analysis and in-situ test,it is demonstrated that if some special measures are adopted for such high and steep slope of 1:0.75,no-rail slip-form construction technology can be successfully used for facing concrete.