钻孔桩单桩承载力特征值

28号孔钻孔桩d=1000桩身长度Li(m)桩侧极限侧阻力特征值qsia（kPa）桩端极限端阻力特征值qpa（kPa）桩径d(m)桩径D(m)桩侧阻抗力系数ψsi桩端阻抗力系数ψp桩身周长u(m)桩端面积Ap(m^2)单桩侧阻力特征值(kN) Qsia = u * qsia * lsi单桩抗拔力特征值(kN) Qsia' = u * qsia * lsi桩侧土总摩侧阻力特征值(kN) ∑Qsia = u * ∑qsia * lsi持力岩层总端阻力特征值(kN) Qpa = C1*frp * Ap单桩竖向极限承载力特征值(kN) Ra = ∑Qsia + Qpa单桩竖向抗拔力特征值(kN)Ra = ∑Qsia' +0.9G0钻孔桩桩身强度设计值持力层单桩竖向极限承载力特征值(kN)Ra=min[Ra,桩身强度]28号孔钻孔桩d=2200桩身长度Li(m)桩侧极限侧阻力特征值qsia（kPa）桩端极限端阻力特征值qpa（kPa）桩径d(m)桩径D(m)桩侧阻抗力系数ψsi桩端阻抗力系数ψp桩身周长u(m)桩端面积Ap(m^2)单桩侧阻力特征值(kN) Qsia = u * qsia * lsi单桩抗拔力特征值(kN) Qsia' = u * qsia * lsi桩侧土总摩侧阻力特征值(kN) ∑Qsia = u * ∑qsia * lsi持力岩层总端阻力特征值(kN) Qpa = C1*frp * Ap单桩竖向极限承载力特征值(kN) Ra = ∑Qsia + Qpa单桩竖向抗拔力特征值(kN)Ra = ∑Qsia' +0.9G0钻孔桩桩身强度设计值持力层单桩竖向极限承载力特征值(kN)Ra=min[Ra,桩身强度]0.000.000.001.001.000.960.953.140.790.000.003995.641002.764998.403009.065823.58中风化泥质粉砂岩4998.40 素填土4.900.000.002.204.000.820.676.9112.570.000.006427.4616807.2823234.7311151.1528186.14中风化泥质粉砂岩23234.73淤泥3.800.000.00粘土③0.0035.000.001.602.20粉质粘土④0.0025.000.001.602.60粉土④-10.0022.000.00粉质粘土⑤-10.0015.000.00粉土⑤1.7020.000.00圆砺⑥5.3050.001100.00粉质粘土⑥-10.0015.00250.00强风化⑦5.7045.00900.00中风化⑧15.0055.002000.000.000.000.000.000.000.001.001.00粘土0.000.000.001.001.00粉质粘土7.3021.000.00粉土3.4024.000.00粉质粘土3.9035.000.00粉土5.2025.000.00粉质粘土7.7035.000.00粉砂5.5038.000.00粗砂9.0050.001350.000.960.000.000.000.000.000.00481.61337.12256.35174.32428.83321.62408.41281.80846.66609.59656.59393.961099.56890.640.720.000.000.000.000.000.000.000.000.000.00234.99152.741831.552164.560.000.001772.802095.134029.416738.7224907.325701.99 第 1 页

单桩竖向承载力设计值计算

28号孔钻孔桩d=1600桩身长度Li(m)桩侧极限侧阻力特征值qsia（kPa）桩端极限端阻力特征值qpa（kPa）桩径d(m)桩径D(m)桩侧阻抗力系数ψsi桩端阻抗力系数ψp桩身周长u(m)桩端面积Ap(m^2)单桩侧阻力特征值(kN) Qsia = u * qsia * lsi单桩抗拔力特征值(kN) Qsia' = u * qsia * lsi桩侧土总摩侧阻力特征值(kN) ∑Qsia = u * ∑qsia * lsi持力岩层总端阻力特征值(kN) Qpa = C1*frp * Ap单桩竖向极限承载力特征值(kN) Ra = ∑Qsia + Qpa单桩竖向抗拔力特征值(kN)Ra = ∑Qsia' +0.9G0钻孔桩桩身强度设计值持力层单桩竖向极限承载力特征值(kN)Ra=min[Ra,桩身强度]28号孔钻孔桩d=1600桩身长度Li(m)桩侧极限侧阻力特征值qsia（kPa）桩端极限端阻力特征值qpa（kPa）桩径d(m)桩径D(m)桩侧阻抗力系数ψsi桩端阻抗力系数ψp桩身周长u(m)桩端面积Ap(m^2)单桩侧阻力特征值(kN) Qsia = u * qsia * lsi单桩抗拔力特征值(kN) Qsia' = u * qsia * lsi桩侧土总摩侧阻力特征值(kN) ∑Qsia = u * ∑qsia * lsi持力岩层总端阻力特征值(kN) Qpa = C1*frp * Ap单桩竖向极限承载力特征值(kN) Ra = ∑Qsia + Qpa单桩竖向抗拔力特征值(kN)Ra = ∑Qsia' +0.9G0钻孔桩桩身强度设计值持力层 素填土4.900.000.001.602.200.870.785.033.800.000.005121.955903.8111025.765038.32淤泥3.800.000.00粘土③0.0035.000.00粉质粘土④0.0025.000.00粉土④-10.0022.000.00粉质粘土⑤-10.0015.000.00粉土⑤1.700.000.00圆砺⑥5.3050.001100.00粉质粘土⑥-10.0015.00250.00强风化⑦5.7045.00900.00中风化⑧15.0055.002000.000.820.000.000.000.000.000.000.000.000.000.000.000.001332.041190.510.000.001289.311152.323262.232695.4914908.37中风化泥质粉砂岩11025.76 素填土4.900.000.001.602.600.870.745.035.310.000.005270.737908.5313179.267260.0514908.37中风化泥质粉砂岩淤泥3.800.000.00粘土③0.0035.000.00粉质粘土④0.0025.000.00粉土④-10.0022.000.00粉质粘土⑤-10.0015.000.00粉土⑤1.7020.000.00圆砺⑥5.3050.001100.00粉质粘土⑥-10.0015.00250.00强风化⑦5.7045.00900.00中风化⑧15.0055.002000.000.000.000.000.000.000.000.000.000.000.00170.90111.091332.041406.960.000.001289.311361.833262.234380.17 第 2 页

单桩竖向承载力设计值计算

单桩竖向极限承载力特征值(kN)Ra=min[Ra,桩身强度]13179.26(2153.50)28号孔钻孔桩d=1200桩身长度Li(m)桩侧极限侧阻力特征值qsia（kPa）桩端极限端阻力特征值qpa（kPa）桩径d(m)桩径D(m)桩侧阻抗力系数ψsi桩端阻抗力系数ψp桩身周长u(m)桩端面积Ap(m^2)单桩侧阻力特征值(kN) Qsia = u * qsia * lsi单桩抗拔力特征值(kN) Qsia' = u * qsia * lsi桩侧土总摩侧阻力特征值(kN) ∑Qsia = u * ∑qsia * lsi持力岩层总端阻力特征值(kN) Qpa = C1*frp * Ap单桩竖向极限承载力特征值(kN) Ra = ∑Qsia + Qpa单桩竖向抗拔力特征值(kN)Ra = ∑Qsia' +0.9G0钻孔桩桩身强度设计值持力层单桩竖向极限承载力特征值(kN)Ra=min[Ra,桩身强度] 素填土4.900.000.001.202.000.920.803.773.140.000.002994.184497.157491.333336.28淤泥3.800.000.00粘土③0.0035.000.00粉质粘土④0.0025.000.00粉土④-10.0022.000.00粉质粘土⑤-10.0015.000.00粉土⑤1.7020.000.00圆砺⑥5.3050.001100.00粉质粘土⑥-10.0015.00250.00强风化⑦5.7045.00900.00中风化⑧20.0055.001800.000.830.000.000.000.000.000.000.000.000.000.00128.1883.32999.031082.280.000.00559.831047.561727.881123.129793.39中风化泥质粉砂岩7491.33 第 3 页

单桩竖向承载力设计值计算

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