考虑负薄壁层效应的冲击试验模型研究

Based on the data of slug test on the foundation of one dam in the south of China in low permeable aquifer, the paper established a mathematical model considering negative skin effects with a finite-thickness skin to evaluate the hydraulic conductivity of aquifer. The expression of normalized head displacement in well was given, and the hydraulic conductivity estimate was obtained from the situ data plot overlained by type curve plot. The results calculated using the model compared with matching line method is reasonable, incating that the model is of good accuracy and applicability and is of important reference value in practical engineering applications.