拟合支盘桩单桩静荷载曲线的生长曲线模型探讨  

Discussion on Growth Curve Model for Fitting Squeezed Branch Piles' Static Load Curves

作　　者：王成武[1] 龚成中[1] 

机构地区：[1]淮阴工学院建筑工程学院,江苏淮安223001

出　　处：《黑河学院学报》2015年第6期120-122,共3页Journal of Heihe University

基　　金：江苏省自然科学基金面上项目<大直径深嵌岩桩基承载特性及位移场研究>(BK2011406)

摘　　要：运用生物学领域生物生长的理念研究支盘桩的单桩静荷载曲线,引入四种生长曲线模型,对挤扩支盘桩的荷载—沉降曲线进行拟合以及预测桩的竖向极限承载力,结果显示,生长曲线模型可以对支盘桩的Q-S曲线进行拟合。结合工程试桩的实测资料分析认为,Weibull模型的拟合精度更高。The single squeezed branch pile＇ s static load - settlement curve is viewed from the biological growth law and four growth curve models such as Weibull, Richards, Gompertz and Logistic are used to fit the squeezed branch pile＇ s Q - s curve and then predict the ultimate bearing capacity of single pile. The results show that the growth curve models have a good effect on fitting the pile＇ s Q - s curve. These models are used to study six cases and the comparisons illustrate that the Weibull model keeps good applicability in fitting the single pile＇s static load- settlement curve.

关 键 词：挤扩支盘桩 生长曲线模型 静荷载曲线 极限承载力 

分 类 号：TU473[建筑科学—结构工程]