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(1 河南大學(xué)土木建筑學(xué)院  開封 475001; 2 同濟(jì)大學(xué)地下建筑與工程系  上海 200092)
【提要】  通過理論分析建立了加芯水泥土攪拌樁內(nèi)力和變形的計(jì)算式，并用于幾種典型單樁的計(jì)算和分析，結(jié)果表明，在水泥土攪拌樁內(nèi)加入加強(qiáng)芯材后，可以有效地減小樁頂沉降，增加樁身的臨界深度，使樁身荷載傳遞趨于合理，在一定條件下，加芯水泥土攪拌樁可以代替鋼筋混凝土樁使用。
【關(guān)鍵詞】  加芯水泥土攪拌樁  沉降  內(nèi)力  摩阻力  臨界深度
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