关键词: 胶凝砂砾石坝, 应力分析, 应力水平, 安全分析

Abstract: The overall security and stability of cemented sand and gravel dam are better by using the symmetric trapezoidal profile, but the toe and the foundation of the dam are fragile. In order to analyze the safety of cemented sand and gravel dam, the stress of a cemented sand and gravel dam with 100 m in height and the comparison with gravity dam are analyzed under three water levels. And the anti-shear and anti-sliding stability analyses of these two dams are carried out by introducing the stress level and point safety factor method. The results show that the safety of cemented sand and gravel dam is better than the gravity dam with the same elevation, the stress is less affected by water load, the stress level distribution is more reasonable and the safety factor is higher under the same foundation conditions.

Key words: cemented sand and gravel dam, stress analysis, stress level, safety analysis