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.
出处
《公路》
北大核心
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
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
bridge
pier and abutment
passenger dedicated line
settlement observation
curve fitting
gray system theory
prediction model
