某水库高水位运行期间大坝渗流性态分析

Seepage Characteristics Analysis of a Reservoir Dum During Operation at High Water Level

某水库蓄水运行已有7年。为进一步分析大坝渗流特性,了解大坝渗流状况,采用数据分析法从量值和规律性对各测点测值进行细致分析,并采用测值分布曲线、特征值统计法、过程线图对渗流情况进行了分析,从而评价大坝安全稳定性。通过对坝体与坝基渗流工作形态分析,掌握坝体与坝基运行渗流状况;通过对坝基扬压力、渗压计、绕坝渗流和量水堰监测资料及变化规律的分析,对大坝的渗流性态作出分析评价,旨在通过分析及时发现异常或工程隐患,并采取补救措施,保证大坝安全稳定运行,提高大坝的运行安全水平。

A reservoir has been in operation for seven years.To further analyze the seepage characteristics of the dam,to understand the seepage status of the dam,using data analysis to analyze the values and regularity of the measured points to be analyzed,the seepage situation was analyzed by measured distribution curve,eigenvalue statistics,process chart,to evaluate the safety of the dam.Through the dam body and dam foundation seepage work form analysis;Based on the analysis of the monitoring data of uplift pressure of dam foundation,seepage pressure meter,seepage around dam and water measuring weir and its change rule,the seepage behavior of the dam is analyzed and evaluated.The aim is to find out the abnormal or hidden danger in time through analysis,and take remedial measures to ensure the safe and stable operation of the dam and improve the safety level of the dam operation.