灌溉水的损失中渗漏损失远大于蒸发损失。本文在概括以往关于灌溉渠道渗漏损失的同时,研讨了渠道渗漏损失量的计算方法。渗漏损失随着渠道形状、渗透系数、地下水位等的不同而变化,为了防止渗漏损失对渠道进行衬砌是有效的。这里就边坡系数为1的梯形渠道的渗漏损失,比较研究了Bouwer图解法和几种理论解析法,探讨了衬砌防止渠道渗漏的效果。 Leakage losses in irrigation water are much greater than evaporation losses. This article summarizes the past on the leakage of irrigation canal leakage at the same time, discusses the calculation method of canal leakage loss. Leakage loss varies with channel shape, permeability coefficient, groundwater level, etc. It is effective to prevent the leakage from lining the channel. In this paper, the seepage loss of trapezoidal channel with slope coefficient of 1 is studied. Bouwer graph method and several theoretical analysis methods are comparatively studied, and the effect of lining to prevent channel leakage is also discussed.