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软土路基沉降预测模型比较研究
引用本文:李建初,赵其华,韩刚,陈继彬.软土路基沉降预测模型比较研究[J].地质灾害与环境保护,2012,23(1):25-29.
作者姓名:李建初  赵其华  韩刚  陈继彬
作者单位:成都理工大学地质灾害防治与地质环境保护国家重点实验室,成都,610059
摘    要:针对高速公路软土路基的沉降预测,介绍灰色Usher模型的原理和应用.在置换法、碎石桩和塑料排水板三种不同软基处理方式下,分别应用该模型及双曲线模型、泊松曲线模型和Gompertz模型对某工程路基工后沉降进行预测.比较四种模型计算结果显示,基于实测数据的Usher模型很好地反映出沉降变化及其趋势.其精度高于其它三种预测模...

关 键 词:软土路基  沉降预测  Usher模型

A COMPARATIVE STUDY ON PREDICTION MODELS OF SOIL SUBGRADE SETTLEMENT
Li Jian-chu , Zhao Qi-hua , Han Gang , Chen Ji-bing.A COMPARATIVE STUDY ON PREDICTION MODELS OF SOIL SUBGRADE SETTLEMENT[J].Journal of Geological Hazards and Environment Preservation,2012,23(1):25-29.
Authors:Li Jian-chu  Zhao Qi-hua  Han Gang  Chen Ji-bing
Institution:g(State Key Laboratory of Geo-hazards Prevention & Geo-environment Protection,Chengdu 610059,China)
Abstract:The principle and application of Gray Usher model is introduced for forecasting the settlement of expressway soft subgrade.Post-construction settlements were calculated for an expressway engineering object in three soft subgrade treatment modes of replacement method,gravel pile and plastic drainage board,respectively with this model,hyperbolic model,poisson curve model and Gompertz model.A comparison of the four results shows that the calculation with Usher model reflects the settlement change and its trend the best,with the highest accuracy.Thus it’s advisable in engineering.
Keywords:soft subgrade  settlement prediction  Usher model
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