(管桩)单桩竖向承载力特征值计算表

1、预应力管桩单桩竖向承载力特征值计算表计算公式：ra=uqsiali+ 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uqsiali(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/0.51.5700.1963019182淤泥质土08003粉质粘土4.5161130.55624粉细砂8.9253490.652275粉质粘土-12.130

2、990.7696粉细砂6.3252470.81987淤泥质土01208粉质粘土0.745499砂质泥岩（强风化）1.5100420023682410泥质砂岩（中风化）-111泥质泥岩总桩长l24109482419186272000zk51杂填土/0.51.5700.1963018162淤泥质土08003粉质粘土4.5161130.55624粉细砂8.5253340.652175粉质粘土-13.4301600.71126粉细砂3.8251490.81197淤泥质土01208粉质粘土04509砂质泥岩（强风化）1.5100420023682410泥质砂岩（中风化）-111泥质泥岩总桩长l21.79

3、9182418165742000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uqsiali(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/0.51.5700.1963018092淤泥质土3.784603粉质粘土3.316830.55464粉细砂15.8256200.654035粉质粘土-103000.706粉细砂02500.807淤泥质土01208粉质粘土04509砂质泥岩（强风化）1.

4、5100420023682410泥质砂岩（中风化）-111泥质泥岩总桩长l24.39858241809722000zk201杂填土/0.51.5700.1963019302淤泥质土08003粉质粘土1.216300.55174粉细砂11.8254630.653015粉质粘土-13.2301510.71066粉细砂02500.807淤泥质土01208粉质粘土3.2452269砂质泥岩（强风化）1.5100420023682410泥质砂岩（中风化）-111泥质泥岩总桩长l20.9110682419306220000.51.5700.1963预应力管桩单桩竖向承载力特征值计算表计算公式：ra=uqs

5、iali+ 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uqsiali(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/0.41.2560.1256013002淤泥质土08003粉质粘土4.516900.55504粉细砂8.9252790.651825粉质粘土-12.130790.7556粉细砂6.3251980.81587淤泥质土01208粉质粘土0.745409砂质泥岩（强风化

6、）1.2100420015152810泥质砂岩（中风化）-111泥质泥岩总桩长l23.783752813654901300zk51杂填土/0.41.2560.1256012832淤泥质土08003粉质粘土4.516900.55504粉细砂8.5252670.651735粉质粘土-13.4301280.7906粉细砂3.8251190.8957淤泥质土01208粉质粘土04509砂质泥岩（强风化）1.2100420015152810泥质砂岩（中风化）-111泥质泥岩总桩长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)

7、桩径(m)桩周长u(m)桩底面积ap(m2)土层总侧阻力值uqsiali(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/0.41.2560.1256012782淤泥质土3.783703粉质粘土3.316660.55364粉细砂15.8254960.653225粉质粘土-103000.706粉细砂02500.807淤泥质土01208粉质粘土04509砂质泥岩（强风化）1.2100420015152810泥质砂岩（中风化）-111泥质泥岩总桩长l247505281278451300zk201杂填土/0.41.2560.1256013002淤泥质土08003粉质粘土1.216240.55134粉细砂11.8253710.652415粉质粘土-13.