首页|基于广义可靠指标相对安全率的土石坝坝坡稳定分析

基于广义可靠指标相对安全率的土石坝坝坡稳定分析

扫码查看
针对土石坝坝坡稳定问题,基于可靠度与失效概率等理论,运用非线性材料抗剪强度理论和设计安全判据,构建了土石坝坝坡稳定分析框架,计算出坝体广义可靠指标相对安全率及失效概率.实例计算结果显示,罗田水库大坝在不同工况下的坝坡稳定设计基本满足可靠度要求,目标失效概率约为 0.13%,但特定工况下的安全性能需特别关注.研究成果可供百米级中小型土石坝的设计和相对安全率等可靠指标计算参考.
Stability Analysis of Embankment Dams based on Relative Safety Rate of Generalized Reliability Index
Based on the reliability and failure probability theories,a dam slope stability analysis framework of embank-ment dams is established using the nonlinear shear strength theory and the safety design criteria,in which the relative safety rate and the failure probability of the generalized reliability index of the dam body are calculated.Practical exam-ples show that the stability of the Luotian Reservoir dam basically meets the reliability requirements under various work-ing conditions,with a failure probability of about 0.13%.While,special attention should be paid to the safety perform-ance under specific working conditions.The analysis method can be useful reference for the design and calculation of re-liability indexes such as the relative safety rate of small and medium size embankment dams at the hundred-meter level.

Luotian Reservoirdam slope stabilityrelative safety rategeneralized reliability indexfailure probability

郭才迏

展开 >

深圳市深水兆业工程顾问有限公司,广东 深圳 518000

罗田水库 坝坡稳定 相对安全率 广义可靠指标 失效概率

2024

水电与新能源
湖北省水力发电工程学会 湖北能源集团股份有限公司

水电与新能源

影响因子:0.301
ISSN:1671-3354
年,卷(期):2024.38(10)