摘要
以张桑高速公路3个典型路基断面实测数据为研究对象,采用灰色GM(1,1)、Verhulst和非等时距UGM(1,1)三种模型对各断面的沉降数据进行了拟合及预测,根据计算结果确定了各阶段最适宜的预测模型并利用该模型对各断面的工后沉降进行了预测。结果表明,Verhulst灰色模型模拟和预测精度更高,适用于路基断面的中长期沉降预测,预测结果可为路基施工提供参考。
Based on the measured data of 3 typical roadbed sections of Zhangsang expressway,grey GM(1,1),Verhulst and non equal time interval UGM(1,1)were used to fit and predict the settlement data of each section.According to the calculation results,the most suitable prediction model of each stage is determined and the post construction settlement of each section is predicted by the model.The results show that the Verhulst grey model has higher accuracy in simulation and prediction,and is suitable for the prediction of mid and long term settlement of subgrade section.The prediction results can provide reference for subgrade construction.
作者
胡习阳
曾志雄
符梁
杨成
殷园
ZENG Zhixiong;FU Liang;YANG Cheng;YIN Yuan(Hunan Zhangsang Expressway Construction Development Company Ltd,Zhangjiajie,Hunan 427000,China)
出处
《公路工程》
北大核心
2018年第4期278-282,共5页
Highway Engineering
关键词
路基沉降
预测模型
灰色理论
subgrade settlement
prediction model
grey theory
作者简介
胡习阳(1973-),男,湖南桃江人,高级工程师,从事高速公路建设管理工作。
