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整理分析各项渗流观测资料,及时掌握坝体和坝基的实际渗流情况.是水库管理单位每年都要进行的一项重要工作.在绘制出回归曲线以后,还可验证和推求当达到某一库水位时可能发生的各观测项目预报值,为工程维修、改建提供资料.因此,这项工作对于保证坝体稳定和水库安全运用具有十分重要的作用. 对于均质土坝而言,由于测压管水位、渗漏量等诸观测项目的变化均因渗漏过程而滞后于库水位的变化一段时间,故其与库水位相关时一般不呈线性关系.其变化模式为:当库水位上升时,各观测项目值相应上升;当库水位开始下降时,各观测项目值由于滞后效
Finishing and analyzing the seepage observation data and timely grasping the actual seepage situation of the dam body and the dam foundation is an important work to be carried out by the reservoir management unit every year.When the regression curve is drawn up, Therefore, this work is very important to ensure the stability of the dam and the safe operation of reservoirs.For a homogeneous earth dam, due to the pressure measurement The changes of water level, leakage and other observation items all lag behind the change of reservoir water level for a period of time due to seepage process, so it is generally not linear when it is related to reservoir water level.The changing pattern is as follows: , The value of each observation item rises correspondingly; when the water level of the reservoir begins to decline, the value of each observation item is delayed due to the lag effect