摘要
设计水工建筑物的地下轮廓之前,必须先计算渗流扬压力:由于闸坝地下轮廓线形状复杂且带有板桩、防渗墙、齿槽垂直防渗体等,致使渗流扬压力的计算相当繁复。采用保角变换法将带有板桩等垂直防渗之运动平面,映射到不带板桩的带形域,从而“消去”了板桩等的影响,使计算工作大为简化,文中所导得的计算方法,可适用于深度T为任意值的情况。经算例表明,本文的方法具有较高的精确度。
It is necessary to calculate the seepage uplift before the design of bottom contour of sluice weir or dam. But this calculation method is very complex, because the bottom contour of the hydrostructure includes some verticle sheet piles. This paper transforms the seepage flow plane with sheet piles by the method of conformal mapping into a plane without sheet piles, thus the sheet piles being eliminated. The simplified calculation is suitable for the case of any foundation depth T, and is convenient to design. The calculating examples show that the method has higher accuracy.
