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(河南大學(xué)土木建筑學(xué)院，開封 475001)

［摘要］通過剛性樁復(fù)合地基群樁(樁數(shù)3×3)模型試驗(yàn)，對不同墊層厚度剛性樁復(fù)合地基的變形特性、不同樁位樁體和樁間土的受力特性進(jìn)行測試，并對樁土應(yīng)力比和荷載分擔(dān)比等反映樁土共同工作性能的指標(biāo)進(jìn)行分析，得出了剛性樁復(fù)合地基的承載特性和變形規(guī)律。結(jié)論可為剛性樁復(fù)合地基的優(yōu)化設(shè)計(jì)提供依據(jù)。

［關(guān)鍵詞］復(fù)合地基；剛性樁；模型試驗(yàn)；墊層

Model experimental study on composite foundation with rigid piles

Li Li, Bao Peng, Zhao Jie(School of Civil Engineering and Architecture, Henan University, Kaifeng 475001, China)

Abstract:Through the experimental research on rigid pile composite foundation group piles (pile number of 3×3) model, the deformation characteristics, force characteristics of piles and soil of rigid pile composite foundation with different cushion thickness are tested. The pile-soil stress ratio and load-sharing ratio which reflect the pile-soil interaction characteristic are analyzed, and bearing characteristics and deformation laws of rigid pile composite foundation are obtained. The conclusions can provide a basis for optimal design of the rigid pile composite foundation.

Keywords:composite foundation; rigid piles; model experiment; cushion

*河南省科技攻關(guān)計(jì)劃項(xiàng)目(496260015)。

作者簡介：李麗，碩士，副教授，Email：lylylee@163.com。

參考文獻(xiàn)

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