高地震烈度区塑性混凝土防渗墙配合比设计与应用
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摘要
文中叙述了利用河床大量发育粉细砂作为土坝基础,在高地震烈度区修建大型水利枢纽工程,对基础防渗工程中的抗震设计采用塑性混凝土防渗墙。防渗墙混凝土配合比决定着防渗墙的性能能否满足防渗、抗震要求。为满足哈达山水利枢纽工程中混凝土防渗墙的各项指标,进行了一系列试验和试配,确定了合理的施工配合比,本文全面分析和总结了试验成果和试验方法。
The large hydro-junction project is built in high earthquake-intensity area with the fine sand developed largely in river bed as the earth dam foundation,and then the plastic concrete cutoff wall is adopted in the seismic design for the foundation anti-seepage project.The concrete mix proportion of cutoff wall determines the anti-seepage and seismic performance.Series of tests are made to meet the indexes of concrete cutoff wall in Hadashan hydro-junction and the reasonable construction mix proportion is determined.The paper analyzes and summaries comprehensively the test methods and results.
The large hydro-junction project is built in high earthquake-intensity area with the fine sand developed largely in river bed as the earth dam foundation,and then the plastic concrete cutoff wall is adopted in the seismic design for the foundation anti-seepage project.The concrete mix proportion of cutoff wall determines the anti-seepage and seismic performance.Series of tests are made to meet the indexes of concrete cutoff wall in Hadashan hydro-junction and the reasonable construction mix proportion is determined.The paper analyzes and summaries comprehensively the test methods and results.
引文
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