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本文介绍了采用土梁弯曲及轴向拉伸的方法，对三种筑坝粘土及一种筑坝壤土进行 抗拉性能试验的结果，并对某工程坝体用有限单元法进行了初步的应力分析。计算结 果表明，土石坝心墙在某些条件下，例如坝壳填筑质量低劣或坝肩基础处理不妥，便可 在坝顶或坝肩产生拉应力和拉应变：当这些数值超过心墙土料的抗拉极限时，就会产生 纵向或横向裂缝。上述研究工作，初步定量说明了土石坝产生张拉裂缝的原因，
In this paper, the results of tensile test of three kinds of dammed clay and one dam loam are introduced by using the method of bending and axial stretching of soil beam. The initial stress of a project dam by the finite element method analysis. The calculation results show that the core wall of earth-rockfill dam can generate tensile stress and tensile strain at the crest or abutment under certain conditions, such as the poor quality of the dam shell filling or improper foundation treatment on the abutment. When these values exceed the core wall When the tensile resistance of soil material, it will have vertical or horizontal cracks. The above research work initially quantified the reasons for the tension and fracture of earth-rock dams,