摘要
以弧形钢闸门自重、静水压力、闸墩及护坡自重、闸墩基础与地基间的摩擦系数和基底粘着力等因素作为随机变量,探讨了弧形钢闸门抗滑稳定可靠性分析方法,建立了抗滑稳定极限状态方程。结合工程实例对弧形钢闸门抗滑稳定可靠性进行了定量分析,可靠性指标b为4.1688,失效概率Pf为6.717×10-5,并与传统的容许应力法作了比较。结果表明,该方法更科学、更合理、更具有实际意义。
With the static water pressure, weights of piers and protecting slope, friction coefficient of pierfoundation on ground and base cohesion etc. as random variables, the analysis method of anti-sliding reliabilityand its equation in stable limit for steel radial gates are given. The anti-sliding reliability of a given steel radialgate is quantitatively analyzed, with the reliability guideline b = 4.1668, and the probability of invalidation Pfis 6.717Х10-5. It proves that this method is more scientific and reasonable, and with more practical meaning.
出处
《排灌机械》
2005年第1期22-24,共3页
Drainage and Irrigation Machinery
关键词
弧形钢闸门
抗滑稳定
可靠性
Steel radial gate
Anti-sliding
Reliability
