考虑变量相关的重力坝建基面抗滑稳定可靠度分析  

Reliability Analysis of Gravity Dam Foundation Surface's Sliding Stability under Considering Variable Correlation

作　　者：欧阳彬生[1] 罗琳[1] 

机构地区：[1]江西现代职业技术学院,江西南昌330095

出　　处：《水利与建筑工程学报》2011年第1期98-100,共3页Journal of Water Resources and Architectural Engineering

摘　　要：在重力坝建基面抗滑稳定可靠度计算中,抗剪断摩擦系数和凝聚力存在相关关系。考虑变量相关更加符合工程实际情况,计算得到的可靠指标可信度更高。本文介绍了变量相关的概念和处理方法,编制了相应的计算程序,计算了考虑和不考虑变量相关两种工况的抗滑稳定可靠指标。计算结果表明,考虑变量相关后,可靠指标有较大程度的降低。In the reliability analysis for sliding stability of gravity dam foundation surface,there exists the correlation relationship between the anti-cut friction coefficient and cohesion.Considering the variables being more in line with the actual situation of the project,the reliable indication from calculation is higher.Here,the concept and treatment method of variable correlation are introduced,the corresponding program is written,and the reliability indexes of the sliding stability are calculated under two conditions with and without considering the variable correlation.The results show that under considering the variable correlation,the reliability index would be decreased relatively to a great extent.

关 键 词：重力坝 抗滑稳定 可靠度 变量相关 

分 类 号：TV642.3[水利工程—水利水电工程]