桩长L(m)
桩身直
径u(m)
桩端直径
D(m)
桩端
面积
A(m2)
极限侧阻
力标准值
q sik(KPa)
极限端阻
力标准值
q pk(KPa)
大直径桩
侧阻力尺
寸效应系
数ψsi
大直径桩
端阻力尺
寸效应系
数ψp
单桩总极
限侧阻力
标准值
Q sk(KN) 2.60.8201130.624 6.60.8201331.584
2.10.8201105.504
3.10.825119
4.68 2.80.825117
5.84 2.70.8251169.56
00.8010
00.8010
1.2 1.1330000.904
2.60.8201130.624 6.60.8201331.584
2.10.8201105.504
3.10.825119
4.68 2.80.825117
5.84 2.90.8251182.12
00.8010
00.8010
1.6
2.0130000.841
2.6 1.0200.956156.0957 6.6 1.0200.956396.2429
2.1 1.0200.956126.0773
3.1 1.0250.956232.6426 2.8 1.0250.956210.1288 2.7 1.0250.956202.6242
0 1.000.9560
0 1.000.9560
1.8
2.5430000.816
2.6 1.2200.922180.653 6.6 1.2200.922458.5807
2.1 1.2200.922145.912
3.1 1.2250.922269.2424 2.8 1.2250.922243.1867 2.7 1.2250.92223
4.5015
0 1.200.9220
0 1.200.9220
2.4 4.5230000.760
适用于粘性土、粉土
确定桩长的标准：1、持力层标高最深（最重要的）；2、湿陷最深；3、下拉荷载
单桩总极
限端阻力标准值Q pk(KN)单桩竖向极
限承载力标
准值Q uk(KN)
基桩竖向极
限承载力特
征值R(KN)
下拉荷载
F（KN)
负摩阻
q n s（KPa）
上部荷
载NγoγoN
97.9681513500
331.58420
105.50420
194.6825
175.8425
169.5625
00
00
3067.24175.02087.51075.1
97.9681513500
331.58420
105.50420
194.6825
175.8425
182.1225
00
00 5072.86193.23096.61087.7
122.461513500
414.4820
131.8820
243.3525
219.825
211.9525
00
00 6229.47553.23776.61343.9
146.9521513500
497.37620
158.25620
292.0225
263.7625
254.3425
00
00 10314.511846.65923.31612.7
拉荷载最大。
RγoN≤R