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针对大板水库大坝防渗效果较差问题,提出了坝体混凝土防渗墙+坝基帷幕灌浆的防渗加固方案及高压旋喷墙+压力充填灌浆的质量缺陷补强措施,并对大坝防渗加固前、后进行了有限元渗流分析。实际运行结果表明,加固及其补强措施总体效果显著。
In view of the poor anti-seepage effect of dam of Daban Reservoir, the anti-seepage and reinforcement plan of dam concrete anti-seepage wall and dam foundation curtain grouting and the quality defect reinforcement measures of high pressure rotary spray + pressure filling grouting are put forward. Finite element seepage analysis was performed before and after seepage control. The actual operation results show that the overall effect of reinforcement and reinforcement measures is significant.