软土地基沉降曲线拟合的Logistic-Gompertz叠加曲线模型应用研究
摘要:为了提高软土地基沉降模型的拟合精度,通过对实测数据的分析,研究了软土地基沉降发展规律。在前人研究的基础上将Logistic预测模型和Gompertz预测模型进行叠加,建立了地基沉降历时曲线的Logistic-Gompertz叠加曲线模型,并给出模型的求解方式。通过工程实例讨论了新模型的拟合效果,对比计算结果表明所建立的新模型拟合精度不仅比Logistic模型和Gompertz模型要高,而且可靠性也优于各个单一的模型。新模型具有一定的科学性和适用性,是一种分析地基沉降观测资料的有效方法。
Abstract:To improve the fitting accuracy of Soft soil-Settlement model,by the analysis of measured data,studied the soft soil subgrade settlement development rule.The Logistic forecasting model and Gompertz forecasting model were superimposed on the basis of predecessor's research,and the L-G superposition curve model was set up in subgrade settlement,gave the approach of resolving the optimization model.By engineering project analyzed its fitting efficiency.By comparing the results of field observation data with calculation,not only the fitting accuracy of the new model is better than that of the Logistic model and Gompertz model,but the dependability of the combinational model is superior to each single model.The new model of L-G was scientific and applicative.It provides an effective analysis method for the inspected data of the settlement of foundation.
中文标题：
软土地基沉降曲线拟合的Logistic-Gompertz叠加曲线模型应用研究
Softsoil Subgrade Settlement Curve Fitting by L-G Superposition Curve Model
作者：
赵凤岐,张雄,王伟胜
Zhao Fengqi,Zhang Xiong,Wang Weisheng
作者简介:赵凤岐,1984年生,男,汉族,山东沂水人,在读硕士研究生,主要从事地基处理的研究。E-mail:446039418@qq.com
通讯地址：
河北工程大学土木工程学院, 河北邯郸 056038
CollegeofCivilEngineering,HebeiUniversityofEngineeringHandan056038,Hebei,China
中图分类号:TU433;TU447
doi:10.3969/j.issn.1007-2993.2011.06.006
出版物：岩土工程技术
收稿日期:2011-10-20
关键词:软土地基,LOGISTIC模型,Gompertz模型,曲线叠加,曲线拟合
Key words:soft soil subgrade,logistic model,gompertz model,curve superposition,curve fitting
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