摘要
首先简述了路堤沉降动态控制技术的内容和意义,工后沉降的合理预测是路堤沉降动态控制技术的关键。基于实测沉降数据,以沉降计算值和实测值的绝对误差建立目标函数,以地基中各土层的室内试验参数为基准,在一定合理的上下范围内给出各种土工参数和修正系数的上下限区域,进而搜索出最适合当前沉降发展的参数,同时考虑了次固结因素的影响,从而建立了一种基于实测数据的工后沉降预测模型。并在Microsoft Visual Studio 2008C#环境下开发了SP1.0(Settlement Predictor v1.0)工后沉降预测程序,经申嘉湖杭高速公路大量实测沉降资料的验证,该程序能较合理地对工后沉降进行预测。
At first the content and meaning of dynamic control technic of the embankment settlement are sketched,reasonably forecasting the settlement after work is the master key of the technic.On the basis of the measured data,the object function is established using the absolute error between the calculated results and the measured data,laboratory test parameters are the benchmark,the reasonable top and bottom limitation of the soil parameters and the correction factor are given,the best fitted parameters related to the current settlement are searched out.The secondary consolidation is considered also.Finally a settlement prediction model is set up based on the measured data.The computer program SP1（Settlement Predictor v1.0） is developed in the environment of Microsoft Visual Studio 2008 C#.It can reasonably predicte the settlement after work,which is testified by the large measured data of the Shan-Jia-Hu-Hang Expressway.
出处
《公路》
北大核心
2010年第9期45-48,共4页
Highway
基金
浙江省交通厅科技计划项目
项目编号2006H14
关键词
动态控制
路堤沉降预测
程序
次固结
dynamic control
settlement prediction
program
secondary consolidation
