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库坡浸润线计算的准确性直接影响到坡体的稳定分析和工程治理。将库坡浸润线的求解简化为一维非稳定渗流问题,可以得到库水位等速下降时的浸润线解析解。通过对解析解曲线的拟合,得到了便于工程应用的简化计算公式。借助有限元模拟方法,对简化计算公式进行修正,并通过室内模型试验对修正公式进行了验证。结果表明,试验值与公式计算值较为吻合,修正后的浸润线计算公式准确可行。
The calculation accuracy of reservoir slope infiltration line directly affects the stability analysis and engineering treatment of slope. By solving the solution of soaking line of reservoir bank to a one-dimensional unsteady seepage problem, the analytical solution of the soaking line can be obtained when the velocity of reservoir water level decreases. By fitting the analytical solution curve, a simplified calculation formula for engineering application is obtained. By means of finite element simulation, the simplified calculation formula is corrected, and the correction formula is verified through indoor model test. The results show that the experimental value is in good agreement with the calculated value of the formula, and the corrected calculation formula of the wetting line is accurate and feasible.