哈大客运专线桥梁墩台沉降观测与沉降预测  

Settlement Observation and Prediction of Bridge Pier and Abutment of Haerbing-Dalian Passenger Dedicated Line

作　　者：杨吉新[1] 朱伟伟[1] 丁兰[1] 

机构地区：[1]武汉理工大学交通学院,武汉市430063

出　　处：《公路》2011年第3期20-25,共6页Highway

基　　金：国家高技术研究发展计划(863)项目;项目编号2007AA117107;国家自然科学基金项目;项目编号10372075

摘　　要：以哈大客运专线运粮河特大桥墩台沉降观测为背景,介绍了运粮河特大桥沉降观测的技术要求与观测方法。采用曲线拟合法综合分析了桥梁墩台的沉降变形趋势。运用灰色系统的新陈代谢GM(1,1)模型建立累积沉降的预测模型,预测结果表明该模型精度较高,可以用于累积沉降的预测,对今后的同类工程有一定的借鉴意义。Taking the settlement observation of Yulianghe in Haerbing-Dalian passenger dedicated as background,the observation method and requirements for settlement observation of bridge of Yulianghe are introduced.The tendency of settlement of pier and abutment with curve fitting method are generally analyzed.Then,the metabolic GM（1,1）model of gray system theory is used to establish the prediction model of the accumulated settlement,the forecasting result indicates that the precision of this prediction model is high,and can be used to forecast the accumulated settlement,which would have some referential significance for the similar work in the future.

关 键 词：桥梁 墩台 客运专线 沉降观测 曲线拟合 灰色系统理论 预测模型 

分 类 号：U446.2[建筑科学—桥梁与隧道工程]