高速铁路桥梁桩基工后沉降组合预测研究OA北大核心CSCDCSTPCD
Study of post-construction settlement combination forecast method of high-speed railway bridge pile foundation
通过现场沉降监测,获取了高速铁路桥梁桩基沉降的大量实测数据.据此分析了成桥过程中桩基沉降发展的规律及其沉降曲线特点.对桩基最终沉降,采用单项预测模型进行了拟合预测,通过预测效果的评价指标分析,指出了客运专线铁路无碴轨道铺设条件评估技术指南中评价预测模型合理性仅局限于相关系数指标的不足,建议引入均方误差MSE、平均绝对百分比误差MAPE和平均绝对误差MAE指标进行综合检验、评价,并提出了这些评价指标相应的参考值.引入组合预测模型进行高速铁路桥梁工后…查看全部>>
A large number of accurate and reliable settlement data were obtained via on-site long-term monitoring test. The basic settlement law of pile foundation and characteristics of settlement curve were studied. Single forecast model was used to fit the monitoring data. The inadequacy that the evaluation of reasonable prediction model was limited to the correlation coefficient index in current guidebook was pointed out. It was proposed that mean-square error, mea…查看全部>>
冷伍明;杨奇;聂如松;岳健
中南大学 土木工程学院,长沙 410075中南大学 土木工程学院,长沙 410075中南大学 土木工程学院,长沙 410075中南大学 土木工程学院,长沙 410075
建筑与水利
高速铁路桥梁桩基现场监测工后沉降组合预测模型
high-speed railwaybridge pile foundationon-site monitoringpost-construction settlementcombination forecast model
《岩土力学》 2011 (11)
3341-3348,8
国家自然科学基金资助项目(No.50678175)铁道部科技研究开发计划项目(No.2005K002-A-1).
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