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根据水量守恒原理和任何闭合环路上的水头损失之和等于零的原则，建立了二维裂隙网络渗流模型，并引用连续介质有自由面渗流初流量法基本原理，求解有自由面裂隙网络渗流问题。其次，初步分析了裂隙方向和裂隙密度以及排水点的存在对裂隙网络渗流场的影响。
According to the principle of conservation of water volume and the loss of head on any closed loop, the two-dimensional fractured network seepage model is established and the basic principle of free-flow seepage primary flow method in continuous media is introduced to solve the seepage problem of fractured network with free surface. Secondly, the influence of crack direction and crack density and the existence of drainage points on the seepage field of fractured network are analyzed.