从监测资料看冶勒大坝右岸排水孔灌浆及边坡反滤排水保护处理效果
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摘要
从排水孔排水量、含沙量、渗流量、地下水位以及边坡出水点等方面,结合渗流量BP网络模型分析预报结果,分析评价了冶勒大坝右岸排水廊道排水孔灌浆及8号沟左侧边坡反滤排水保护处理效果。结果表明:处理后初期,个别排水孔排水出现异常增减、浑浊,局部地下水位发生较大变化,之后逐渐稳定;总渗流量逐年减小并趋于平稳,但渗流有向河床部位移动趋势;边坡出水情况有所改善。排水孔灌浆和边坡反滤排水保护处理具有一定效果。同时,对今后的监测、计算和处理工作亦提出粗浅建议。
Based on data of drainage, sediment content, seepage, underground water level and leakage on slope, combined with the forecast results by seepage BP network model, the paper analyzed the effect of drainage hole grouting and slope filtration drainage protection of Yele dam. The analysis showed that: (1)soon after treatment, abnormally increase and decrease of drainage and turbid were found with some drainage holes. Local groundwater level changed greatly, which became stable later; (2) total seepage flow was decreasing and tended to be stable, but the seepage flow had the trend to transfer to river bed; (3) the leakage from side slope decreased. The analysis result proved the effectiveness of treatment by drainage hole grouting and slope filtration drainage protection. At the same time, some suggestions were advanced on monitoring, computation and treatment in the future.
Based on data of drainage, sediment content, seepage, underground water level and leakage on slope, combined with the forecast results by seepage BP network model, the paper analyzed the effect of drainage hole grouting and slope filtration drainage protection of Yele dam. The analysis showed that: (1)soon after treatment, abnormally increase and decrease of drainage and turbid were found with some drainage holes. Local groundwater level changed greatly, which became stable later; (2) total seepage flow was decreasing and tended to be stable, but the seepage flow had the trend to transfer to river bed; (3) the leakage from side slope decreased. The analysis result proved the effectiveness of treatment by drainage hole grouting and slope filtration drainage protection. At the same time, some suggestions were advanced on monitoring, computation and treatment in the future.
引文
[1]苟小丽,王翼.乌江渡水电站绕坝渗漏性态分析与评价[J].水电自动化与大坝监测,2009,33(2):55-57.
[2]余学明,何顺宾.冶勒水电站沥青混凝土心墙堆石坝基础防渗处理设计[C].第一届堆石坝国际研讨会论文集.
[3]郑培溪,崔会东,刘俊林,等.汶川地震对冶勒大坝右岸抗震稳定性的影响评价[J].水力发电,2011,37(4):46-50.
[4]方涛,张忠云,徐文彬.土石坝渗流监测模型分析[J].黑龙江水专学报,2007,34(4):28-30.
[5]魏德荣,方兆熊,徐文彬.用相关分析法和数学模型法查找坝头渗流水通道[J].水电自动化与大坝监测,2008,32(6):62-65.
[6]田伟,魏光辉,高强.基于主成分分析与BP神经网络模型的大坝渗流监测资料分析[J].大坝与安全,2009(5):29-31.
[7]杨杰,吴中如,顾冲时.大坝变形监测的BP网络模型与预报研究[J].西安理工大学学报,2001,25(5):25-29.
[8]訾进甲,陈建康,王剑涛,等.宝珠寺水电站大坝绕坝渗流分析[J].四川水力发电,2009,28(1):82-85.
[2]余学明,何顺宾.冶勒水电站沥青混凝土心墙堆石坝基础防渗处理设计[C].第一届堆石坝国际研讨会论文集.
[3]郑培溪,崔会东,刘俊林,等.汶川地震对冶勒大坝右岸抗震稳定性的影响评价[J].水力发电,2011,37(4):46-50.
[4]方涛,张忠云,徐文彬.土石坝渗流监测模型分析[J].黑龙江水专学报,2007,34(4):28-30.
[5]魏德荣,方兆熊,徐文彬.用相关分析法和数学模型法查找坝头渗流水通道[J].水电自动化与大坝监测,2008,32(6):62-65.
[6]田伟,魏光辉,高强.基于主成分分析与BP神经网络模型的大坝渗流监测资料分析[J].大坝与安全,2009(5):29-31.
[7]杨杰,吴中如,顾冲时.大坝变形监测的BP网络模型与预报研究[J].西安理工大学学报,2001,25(5):25-29.
[8]訾进甲,陈建康,王剑涛,等.宝珠寺水电站大坝绕坝渗流分析[J].四川水力发电,2009,28(1):82-85.
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