单桩竖向承载力的可靠度设计与估计研究  

Research on the Reliability Design and Estimate of Single-pile's Vertical Bearing Capacity

作　　者：刘兴景[1] 周骞[2] 

机构地区：[1]同济大学,上海200092 [2]长沙交通学院,湖南长沙410076

出　　处：《长沙交通学院学报》2001年第1期66-71,共6页Journal of Changsha Communications University

摘　　要：以随机场作为桩基土层土性参数的数学模型 ,探讨了桩的承载力统计规律。把桩基从容许承载力设计提高到概率极限状态设计水平。以交通部规划设计院提供的两座桥梁完整的地基勘探资料为算例 ,验证所提供的模型与方法的适用性。Based on the model of random fields of soils around the pile, the authors carry out some study on the statistical theory on the vertical bearing capacity of single pile and it enhances the design level of pile's capacity from the traditional method of permissible stress to that of probability limit state based on theory of reliability. The example is based on the data supplied by two bridge.

关 键 词：桩基 承载力 齐次随机场 相关距离 可靠指标 桥梁 

分 类 号：U443.15[建筑科学—桥梁与隧道工程]