(1 河南大学土木建筑学院  开封 475001; 2 同济大学地下建筑与工程系  上海 200092)
【提要】  通过理论分析建立了加芯水泥土搅拌桩内力和变形的计算式，并用于几种典型单桩的计算和分析，结果表明，在水泥土搅拌桩内加入加强芯材后，可以有效地减小桩顶沉降，增加桩身的临界深度，使桩身荷载传递趋于合理，在一定条件下，加芯水泥土搅拌桩可以代替钢筋混凝土桩使用。
【关键词】  加芯水泥土搅拌桩  沉降  内力  摩阻力  临界深度
Analysis of Internal Force and Deformation of Strong Core Cement Soil Mixing Pile/Kong Dezhi1,2，Zhang Qinghe2(1 School of Civil Engineering and Architecture,Henan University,Kaifeng 475001,China;2 Department of Geotechnical Engineering,Tongji University,Shanghai 200092,China)
Abstract:The formulas for calculating the internal force and deformation of reinforced cement soil mixing pile are derived by theoretic analysis.Some typical piles are calculated and analyzed with the formulas.It is indicated that the settlement of the cement soil mixing pile will reduce,the critical depth will increase,and the load transmission will be more rational if the reinforced component is put in the pile.On some conditions,the reinforced cement soil mixing pile can even replace the reinforced concrete pile.
Keywords:reinforced cement soil mixing pile;settlement;internal force;rubbing resistance;critical depth