摘要
考虑影响抗滑桩间距的相关参数的变异性,建立了抗滑桩合理间距可靠性设计的数学模型,运用JC法进行可靠度分析。工程实例分析表明参数的变异性对桩间土拱的可靠度有较大影响,在抗滑桩间距确定时把计算参数视为随机变量,考虑参数的变异性更符合工程实际,且能得出抗滑桩所承担的风险水平;按常规设计条件得到的抗滑桩间距,不一定满足可靠性设计条件。
Mathematical model for reliability design of anti-slide pile spacing was established with considering the impact of the relevant parameters of the variability.The reliability of the pile spacing was analyzed by JC method.Because the calculated parameter was regarded as the random variable and the parameter variability was considered,the reliability design of anti-slide pile spacing was closer to the engineering practice.Example showed that parameter variation had a greater impact on reliability of the earth arch between anti-slide piles.It could also obtain the risk level of anti-slide piles;the pile spacing might not satisfy the condition of reliability design even though they could meet the conventional design.
出处
《南水北调与水利科技》
CAS
CSCD
2010年第5期141-143,共3页
South-to-North Water Transfers and Water Science & Technology
基金
安徽高等学校省级自然科学研究重点项目(KJ2009A158)
合肥学院引进人才科研启动基金资助项目(08RC14)
关键词
抗滑桩
桩间距
可靠度
JC法
anti-slide pile
pile spacing
reliability
JC method
