基于坝体安全评价模型的复合地基坝体质量安全分析  

Quality and Safety Analysis of Composite Foundation Dam Based on Dam Safety Evaluation Model

作　　者：于淳蛟 YU Chun-jiao(Hubei Zhihong Water Conservancy and Hydropower Design Co.Ltd.,Wuhan 430070,China)

机构地区：[1]湖北志宏水利水电设计有限公司,武汉430070

出　　处：《水利科技与经济》2024年第2期161-166,共6页Water Conservancy Science and Technology and Economy

摘　　要：针对混凝土坝质量安全进行研究,提出一种渗流量概化评价方法。考虑到水位以及时间对地基坝渗透风险的影响,结合工程类比法与贝叶斯法,提出一种综合安全评价方法,实现对复合地基坝渗透破坏风险的评价。在复合地基坝不同位置渗流量预测中,综合法能准确监测坝体渗流量,准确率为94.65%;传统材料系数法准确率仅为64.56%。同时,在年均渗透破坏损失效率监测中,综合法与实际结果接近。研究结果可为对水利工程的质量监管提供重要参考价值。The quality and safety of concrete dams are studied,and a generalized evaluation method of seepage flow is proposed.Considering the influence of water level and time on the seepage risk of foundation dam,a comprehensive safety evaluation method is proposed combining the engineering analogy method and Bayesian method to realize the evaluation of the seepage damage risk of composite foundation dam.In the prediction of seepage flow at different locations of composite foundation dams,the comprehensive method can accurately monitor the seepage flow of the dam body with an accuracy of 94.65%,while the accuracy of the traditional material coefficient method is only 64.56%.At the same time,the comprehensive method is close to the actual results in the monitoring of the annual seepage damage loss efficiency.The research result has important reference value for the quality supervision of water conservancy projects.

关 键 词：复合地基坝 安全评价 渗透破坏 工程类比法 贝叶斯法 

分 类 号：TV33[水利工程—水工结构工程]