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本文阐述了有限单元法求解具有浸润面的土坝三向稳定渗流场的原理和方法。并利用有限单元法的特点给出在均质土坝和非均质土坝上调整浸润面和渗出段的方法和计算任意形状过水断面的渗流量方法。文中还详述了在国产TQ-16型计算机上实现具有一定规模的土坝三向稳定渗流问题有关的技术。最后结合实际工程对均质和非均质渗流场进行了计算分析,经与原体观测资料对比,二者颇为接近,从而为广泛应用电子计算机计算土坝三向渗流问题提供了经验.
This paper expounds the principle and method of finite element method for solving three-dimensional steady seepage field of earth dam with infiltration surface. And using the characteristics of the finite element method, the method of adjusting the infiltration surface and the seepage section on the homogeneous earth dam and the heterogeneous earth dam and the method of calculating the seepage flow of the arbitrary shape of the over-water section are presented. The paper also detailed the technology related to the realization of a three-way steadily seepage problem of earth dams with a certain scale on a domestic TQ-16 type computer. Finally, the homogenous and inhomogeneous seepage fields were calculated and analyzed in combination with the actual project. Comparing with the observation data of the original body, the two are quite close to each other, thus providing experience for the wide application of computer to calculate the three-dimensional seepage problems of earth dams.