均质土坝加高后渗流有限元计算

Seepage Finite Element Calculation After Raising the Homogeneous Earth Dam

土坝加高培厚是土坝加固的一项重要措施,但土坝加高培厚后的渗流稳定问题是关系到工程是否安全的关键,由于土坝加高后新老土体的渗透性和抗剪强度指标等力学性质不同,易造成坝体渗透的不均匀性,是否会引起集中渗流,以及是否可能产生渗透稳定问题,利用有限元方法,对均质土坝的稳定渗流问题进行了研究。

Raising and thickening the earth dam is an important reinforcement measure. But seepage stability influences the safety of the project after raising the earth dam since the new earth body and the old earth body has different permeability, shearing strength and other mechanical property, resulting in unequal seepage of dam body easy. By using finite element method the paper studies and analyzes the reasons causing central seepage, seepage stability and homogeneous earth dam seepage problem.