路基工程Issue(5)：140-144,5.DOI:10.13379/j.issn.1003-8825.2017.05.31
灰色模型在铁路软基沉降预测中的应用
Engineering Application of Gray Model in Settlement Prediction of Railway Soft Foundation
摘要
Abstract
After the completion of the construction,soft subgrade will have a greater settlement.The settlement value determines the construction quality,safety and stability during operation period.Consequently it is clear that the soft subgrade settlement prediction is particularly important.Based on the gray theory,the GM (1,1) gray model was established,relying on the construction of DK84 + 420 and DK85 + 900 working points from Shanghai to Nantong railway,and which predicted the subsidence trend of the two points and the final subsidence by using two observation methods of isochronous moments method and unequal moments method respectively.Research indicates that:compared the predicted data with the measured data in the three months of the subsidence period,the relative error is about 4 ％,which proves that the gray model GM (1,1)is feasible in the soft subgrade subsidence prediction;According to the measured data,the gray model time series equation can be constructed to predict the total subsidence value of the section,and to verify that whether the subsidence value and the subsidence velocity are in accordance with the standard;At the same time,the equation of subsidence prediction can be constructed and the subsidence trend is numerically simulated.关键词
灰色理论/工后沉降/沉降预测/数值模拟Key words
gray theory/post-construction subsidence/subsidence prediction/numerical simulation分类
建筑与水利引用本文复制引用
尹紫红,高雪,赵丰年..灰色模型在铁路软基沉降预测中的应用[J].路基工程,2017,(5):140-144,5.基金项目
上海铁路局科研课题:沪通铁路软土路基沉降变形控制技术方法研究项目(10101k10096113) （10101k10096113）
