【摘要】 针对公路塑料套管桩(TC桩)加固软土地基作用特点,将TC桩视为不透水桩体。在前人研究成果的基础上,根据孔隙水压力连续条件,运用一维固结理论推导加固区及下卧层的平均固结度。最后,结合岳阳至常德高速公路试验段工程对本文研究成果进行验证,结果表明采用方法计算的固结度及沉降值与实测成果接近。从而,说明该计算方法的实用性、合理性,并可为类似工程实践提供理论参考。更多还原

【Abstract】 According to the characteristics of soft foundation reinforced by Plastic Tube Cast-in-place Concrete Pile,it is modeled as an impermeable pile.And average degree of consolidation on the improved area and the subjacent bed are solved with continuous pore-water pressure,the uni-dimensional consolidation theory on the basis of previous studies.At last,the research findings is validate by comparing analytical solutions with the test results of the Yueyang-Changde Highway.And it shows that the analytical solutions are close to the measure datas.Consequently,the calculation method is rational,and can be applied in similar engineering practices.更多还原