(管桩)单桩竖向承载力特征值计算表

计算公式：Ra=u∑qsiali+qpAP（《建筑地基基础设计规范》DBJ15-31-2003)钻孔号地层土层名称分层厚度(m)桩侧摩阻力特征值(kPa)端阻力特征值qP(KN)桩径(m)桩周长U(m)桩底面积AP(m2)土层总侧阻力值u∑qsiali(KN)持力层端阻力值qpAP(KN)单桩竖向承载力特征值Ra(KN)抗拔折减系数抗拔承载力按桩身强度计算的桩承载力单桩承载力特征值Ra(KN)ZK11杂填土①/019182淤泥质土②08003粉质粘土③4.5161130.55624粉细砂④8.9253490.652275粉质粘土④-12.130990.7696粉细砂④6.3252470.81987淤泥质土⑤01208粉质粘土⑥0.745499砂质泥岩（强风化）⑦1.5100420023682410泥质砂岩（中风化）⑧-111泥质泥岩⑧总桩长L24109482419186272000ZK51杂填土①/018162淤泥质土②08003粉质粘土③4.5161130.55624粉细砂④8.5253340.652175粉质粘土④-13.4301600.71126粉细砂④3.8251490.81197淤泥质土⑤01208粉质粘土⑥04509砂质泥岩（强风化）⑦1.5100420023682410泥质砂岩（中风化）⑧-111泥质泥岩⑧总桩长L21.799182418165742000钻孔号地层土层名称分层厚度(m)桩侧摩阻力特征值(kPa)端阻力特征值qP(KN)桩径(m)桩周长U(m)桩底面积AP(m2)土层总侧阻力值u∑qsiali(KN)持力层端阻力值qpAP(KN)单桩竖向承载力特征值Ra(KN)抗拔折减系数抗拔承载力按桩身强度计算的桩承载力单桩承载力特征值Ra(KN)ZK161杂填土①/018092淤泥质土②3.784603粉质粘土③3.316830.55464粉细砂④15.8256200.654035粉质粘土④-103000.706粉细砂④02500.807淤泥质土⑤01208粉质粘土⑥04509砂质泥岩（强风化）⑦1.5100420023682410泥质砂岩（中风化）⑧-111泥质泥岩⑧总桩长L24.39858241809722000ZK201杂填土①/019302淤泥质土②08003粉质粘土③1.216300.55174粉细砂④11.8254630.653015粉质粘土④-13.2301510.71066粉细砂④02500.807淤泥质土⑤01208粉质粘土⑥3.2452269砂质泥岩（强风化）⑦1.51004200236824预应力管桩单桩竖向承载力特征值计算表0.51.5700.19630.51.5700.19630.51.5700.19630.51.5700.196310泥质砂岩（中风化）⑧-111泥质泥岩⑧总桩长L20.9110682419306220000.51.5700.1963计算公式：Ra=u∑qsiali+qpAP钻孔号地层土层名称分层厚度(m)桩侧摩阻力特征值(kPa)端阻力特征值qP(KN)桩径(m)桩周长U(m)桩底面积AP(m2)土层总侧阻力值u∑qsiali(KN)持力层端阻力值qpAP(KN)单桩竖向承载力特征值Ra(KN)抗拔折减系数抗拔承载力按桩身强度计算的桩承载力单桩承载力特征值Ra(KN)ZK11杂填土①/013002淤泥质土②08003粉质粘土③4.516900.55504粉细砂④8.9252790.651825粉质粘土④-12.130790.7556粉细砂④6.3251980.81587淤泥质土⑤01208粉质粘土⑥0.745409砂质泥岩（强风化）⑦1.2100420015152810泥质砂岩（中风化）⑧-111泥质泥岩⑧总桩长L23.783752813654901300ZK51杂填土①/012832淤泥质土②08003粉质粘土③4.516900.55504粉细砂④8.5252670.651735粉质粘土④-13.4301280.7906粉细砂④3.8251190.8957淤泥质土⑤01208粉质粘土⑥04509砂质泥岩（强风化）⑦1.2100420015152810泥质砂岩（中风化）⑧-111泥质泥岩⑧总桩长L21.475552812834491300钻孔号地层土层名称分层厚度(m)桩侧摩阻力特征值(kPa)端阻力特征值qP(KN)桩径(m)桩周长U(m)桩底面积AP(m2)土层总侧阻力值u∑qsiali(KN)持力层端阻力值qpAP(KN)单桩竖向承载力特征值Ra(KN)抗拔折减系数抗拔承载力按桩身强度计算的桩承载力单桩承载力特征值Ra(KN)ZK161杂填土①/012782淤泥质土②3.783703粉质粘土③3.316660.55364粉细砂④15.8254960.653225粉质粘土④-103000.706粉细砂④02500.807淤泥质土⑤01208粉质粘土⑥04509砂质泥岩（强风化）⑦1.2100420015152810泥质砂岩（中风化）⑧-111泥质泥岩⑧总桩长L247505281278451300ZK201杂填土①/013002淤泥质土②08003粉质粘土③1.216240.55134粉细砂④11.8253710.652415粉质粘土④-13.2301210.7846粉细砂④02500.807淤泥质土⑤01208粉质粘土⑥3.2451819砂质泥岩（强风化）⑦1.2100420015152810泥质砂岩（中风化）⑧-111泥质泥岩⑧总桩长L20.684752813743913000.41.2560.1256预应力管桩单桩竖向承载力特征值计算表0.41.2560.12560.41.2560.12560.41.2560.1256