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1、用标准贯入试验锤击数确定承载力1粘性土承载力f(Kpa)N 3 5 7 9 11 13 15 17 19 21 23 f(Kpa)105 145 190 220 295 325 370 430 515 600 680 2.砂土承载力f(Kpa)密实度土类N 1015 15 30 30 稍密中密密实中、粗砂200 250 250 340 340 500 粉、细砂140 180 180 250 250 340 3粘性土 N 与、C的关系N 15 17 19 21 25 29 31 C(KPa)78 82 87 92 98 103 110()24.3 24.8 25.3 26.4 27.0 27.3
2、 4.N手与 Es、C的关系N手3 5 7 9 11 13 15 17 19 21 25 29 31 压缩模量Es(Mpa)7 9 11 13 14.5 16 18 20 22 24 27.5 31 33 粘聚力 C(Kpa)17 36 49 59 66 72 78 83 87 91 98 103 107 内摩擦角(o)17.7 19.8 21.2 22.2 23.0 23.8 24.3 24.8 25.3 25.7 26.4 27.0 27.3 标准贯入锤击数N手是用手拉绳方法测得的,其值比机械化自动落锤方法所得锤击数N机略高,换算关系如下:N手=0.74+1.12N机适用范围:2N机23
3、按比贯入阻力s(Mpa)确定 E0和 Es(Mpa)Es=3.72+1.260.3s5E0=9.79s-2.630.3 s3E0=11.77s-4.69 3s6选自工业与民用建筑工程地质勘察规范(TJ21-77)粘性土、粉土静力触探承载力经验式f0kPa、PsMPa粘性土:f0=104Ps+26.90.3s6粉 土:f0=36Ps+76.6各种土的渗透系数参考值土类渗透系数土类渗透系数 k(m/d)(cm/s)(m/d)(cm/s)粘土0.005 4000 125 0600 sp05.0600 5000 45.20016.0sp5000 100 05000 sp02.05000 100 注:1
4、.类土为位于粉土或砂土以上(或无粉土、砂土层)的粘性土类土为位于粉土或砂土层下的粘性土;类土为粉土或砂土层2地表下6m 范围内的土层极限侧阻力,一律取15KPa 3当桩穿过粉土或砂土层而进入下卧软土层时,则其skiq应按 类土取值后,再根据该层土的平均sp和下卧软土的平均sLp二者的比值大小按下表所给系数s予以折减sp/sLp 5 7.5 10 s1.00 0.50 0.33 文档编码:CF8C7T5R8Y3 HY10E2U6K8C4 ZY7V3F3O9V5文档编码:CF8C7T5R8Y3 HY10E2U6K8C4 ZY7V3F3O9V5文档编码:CF8C7T5R8Y3 HY10E2U6K8C
5、4 ZY7V3F3O9V5文档编码:CF8C7T5R8Y3 HY10E2U6K8C4 ZY7V3F3O9V5文档编码:CF8C7T5R8Y3 HY10E2U6K8C4 ZY7V3F3O9V5文档编码:CF8C7T5R8Y3 HY10E2U6K8C4 ZY7V3F3O9V5文档编码:CF8C7T5R8Y3 HY10E2U6K8C4 ZY7V3F3O9V5文档编码:CF8C7T5R8Y3 HY10E2U6K8C4 ZY7V3F3O9V5文档编码:CF8C7T5R8Y3 HY10E2U6K8C4 ZY7V3F3O9V5文档编码:CF8C7T5R8Y3 HY10E2U6K8C4 ZY7V3F3O9V5
6、文档编码:CF8C7T5R8Y3 HY10E2U6K8C4 ZY7V3F3O9V5文档编码:CF8C7T5R8Y3 HY10E2U6K8C4 ZY7V3F3O9V5文档编码:CF8C7T5R8Y3 HY10E2U6K8C4 ZY7V3F3O9V5文档编码:CF8C7T5R8Y3 HY10E2U6K8C4 ZY7V3F3O9V5文档编码:CF8C7T5R8Y3 HY10E2U6K8C4 ZY7V3F3O9V5文档编码:CF8C7T5R8Y3 HY10E2U6K8C4 ZY7V3F3O9V5文档编码:CF8C7T5R8Y3 HY10E2U6K8C4 ZY7V3F3O9V5文档编码:CF8C7T5R
7、8Y3 HY10E2U6K8C4 ZY7V3F3O9V5文档编码:CF8C7T5R8Y3 HY10E2U6K8C4 ZY7V3F3O9V5文档编码:CF8C7T5R8Y3 HY10E2U6K8C4 ZY7V3F3O9V5文档编码:CF8C7T5R8Y3 HY10E2U6K8C4 ZY7V3F3O9V5文档编码:CF8C7T5R8Y3 HY10E2U6K8C4 ZY7V3F3O9V5文档编码:CF8C7T5R8Y3 HY10E2U6K8C4 ZY7V3F3O9V5文档编码:CF8C7T5R8Y3 HY10E2U6K8C4 ZY7V3F3O9V5文档编码:CF8C7T5R8Y3 HY10E2U6K
8、8C4 ZY7V3F3O9V5文档编码:CF8C7T5R8Y3 HY10E2U6K8C4 ZY7V3F3O9V5文档编码:CF8C7T5R8Y3 HY10E2U6K8C4 ZY7V3F3O9V5文档编码:CF8C7T5R8Y3 HY10E2U6K8C4 ZY7V3F3O9V5文档编码:CF8C7T5R8Y3 HY10E2U6K8C4 ZY7V3F3O9V5文档编码:CF8C7T5R8Y3 HY10E2U6K8C4 ZY7V3F3O9V5文档编码:CF8C7T5R8Y3 HY10E2U6K8C4 ZY7V3F3O9V5文档编码:CF8C7T5R8Y3 HY10E2U6K8C4 ZY7V3F3O9
9、V5文档编码:CF8C7T5R8Y3 HY10E2U6K8C4 ZY7V3F3O9V5文档编码:CF8C7T5R8Y3 HY10E2U6K8C4 ZY7V3F3O9V5文档编码:CF8C7T5R8Y3 HY10E2U6K8C4 ZY7V3F3O9V5文档编码:CF8C7T5R8Y3 HY10E2U6K8C4 ZY7V3F3O9V5文档编码:CF8C7T5R8Y3 HY10E2U6K8C4 ZY7V3F3O9V5文档编码:CF8C7T5R8Y3 HY10E2U6K8C4 ZY7V3F3O9V5文档编码:CF8C7T5R8Y3 HY10E2U6K8C4 ZY7V3F3O9V5文档编码:CF8C7T
10、5R8Y3 HY10E2U6K8C4 ZY7V3F3O9V5文档编码:CF8C7T5R8Y3 HY10E2U6K8C4 ZY7V3F3O9V5文档编码:CF8C7T5R8Y3 HY10E2U6K8C4 ZY7V3F3O9V5文档编码:CF8C7T5R8Y3 HY10E2U6K8C4 ZY7V3F3O9V5文档编码:CF8C7T5R8Y3 HY10E2U6K8C4 ZY7V3F3O9V5文档编码:CF8C7T5R8Y3 HY10E2U6K8C4 ZY7V3F3O9V5文档编码:CF8C7T5R8Y3 HY10E2U6K8C4 ZY7V3F3O9V5文档编码:CF8C7T5R8Y3 HY10E2U
11、6K8C4 ZY7V3F3O9V5文档编码:CF8C7T5R8Y3 HY10E2U6K8C4 ZY7V3F3O9V5一般土的最优含水率和最大干密度土类指标砂类土亚砂土亚粘土轻粘土Ip 40 系数 C 5/6 2/3 1/2 表2 式1 中的修正系数b桩入土深度(m)15 15 30 30 60 b0.75 0.75 0.90 0.90 表3 式2 中的系数可根据1sbp、2sbp的比值在下表中查用1sbp/2sbp15 1 5/6 2/3 1/2 文档编码:CF8C7T5R8Y3 HY10E2U6K8C4 ZY7V3F3O9V5文档编码:CF8C7T5R8Y3 HY10E2U6K8C4 ZY7
12、V3F3O9V5文档编码:CF8C7T5R8Y3 HY10E2U6K8C4 ZY7V3F3O9V5文档编码:CF8C7T5R8Y3 HY10E2U6K8C4 ZY7V3F3O9V5文档编码:CF8C7T5R8Y3 HY10E2U6K8C4 ZY7V3F3O9V5文档编码:CF8C7T5R8Y3 HY10E2U6K8C4 ZY7V3F3O9V5文档编码:CF8C7T5R8Y3 HY10E2U6K8C4 ZY7V3F3O9V5文档编码:CF8C7T5R8Y3 HY10E2U6K8C4 ZY7V3F3O9V5文档编码:CF8C7T5R8Y3 HY10E2U6K8C4 ZY7V3F3O9V5文档编码:
13、CF8C7T5R8Y3 HY10E2U6K8C4 ZY7V3F3O9V5文档编码:CF8C7T5R8Y3 HY10E2U6K8C4 ZY7V3F3O9V5文档编码:CF8C7T5R8Y3 HY10E2U6K8C4 ZY7V3F3O9V5文档编码:CF8C7T5R8Y3 HY10E2U6K8C4 ZY7V3F3O9V5文档编码:CF8C7T5R8Y3 HY10E2U6K8C4 ZY7V3F3O9V5文档编码:CF8C7T5R8Y3 HY10E2U6K8C4 ZY7V3F3O9V5文档编码:CF8C7T5R8Y3 HY10E2U6K8C4 ZY7V3F3O9V5文档编码:CF8C7T5R8Y3 H
14、Y10E2U6K8C4 ZY7V3F3O9V5文档编码:CF8C7T5R8Y3 HY10E2U6K8C4 ZY7V3F3O9V5文档编码:CF8C7T5R8Y3 HY10E2U6K8C4 ZY7V3F3O9V5文档编码:CF8C7T5R8Y3 HY10E2U6K8C4 ZY7V3F3O9V5文档编码:CF8C7T5R8Y3 HY10E2U6K8C4 ZY7V3F3O9V5文档编码:CF8C7T5R8Y3 HY10E2U6K8C4 ZY7V3F3O9V5文档编码:CF8C7T5R8Y3 HY10E2U6K8C4 ZY7V3F3O9V5文档编码:CF8C7T5R8Y3 HY10E2U6K8C4 Z
15、Y7V3F3O9V5文档编码:CF8C7T5R8Y3 HY10E2U6K8C4 ZY7V3F3O9V5文档编码:CF8C7T5R8Y3 HY10E2U6K8C4 ZY7V3F3O9V5文档编码:CF8C7T5R8Y3 HY10E2U6K8C4 ZY7V3F3O9V5文档编码:CF8C7T5R8Y3 HY10E2U6K8C4 ZY7V3F3O9V5文档编码:CF8C7T5R8Y3 HY10E2U6K8C4 ZY7V3F3O9V5文档编码:CF8C7T5R8Y3 HY10E2U6K8C4 ZY7V3F3O9V5文档编码:CF8C7T5R8Y3 HY10E2U6K8C4 ZY7V3F3O9V5文档编
16、码:CF8C7T5R8Y3 HY10E2U6K8C4 ZY7V3F3O9V5文档编码:CF8C7T5R8Y3 HY10E2U6K8C4 ZY7V3F3O9V5文档编码:CF8C7T5R8Y3 HY10E2U6K8C4 ZY7V3F3O9V5文档编码:CF8C7T5R8Y3 HY10E2U6K8C4 ZY7V3F3O9V5文档编码:CF8C7T5R8Y3 HY10E2U6K8C4 ZY7V3F3O9V5文档编码:CF8C7T5R8Y3 HY10E2U6K8C4 ZY7V3F3O9V5文档编码:CF8C7T5R8Y3 HY10E2U6K8C4 ZY7V3F3O9V5文档编码:CF8C7T5R8Y3
17、 HY10E2U6K8C4 ZY7V3F3O9V5文档编码:CF8C7T5R8Y3 HY10E2U6K8C4 ZY7V3F3O9V5文档编码:CF8C7T5R8Y3 HY10E2U6K8C4 ZY7V3F3O9V5文档编码:CF8C7T5R8Y3 HY10E2U6K8C4 ZY7V3F3O9V5文档编码:CF8C7T5R8Y3 HY10E2U6K8C4 ZY7V3F3O9V5文档编码:CF8C7T5R8Y3 HY10E2U6K8C4 ZY7V3F3O9V5文档编码:CF8C7T5R8Y3 HY10E2U6K8C4 ZY7V3F3O9V5文档编码:CF8C7T5R8Y3 HY10E2U6K8C4 ZY7V3F3O9V5文档编码:CF8C7T5R8Y3 HY10E2U6K8C4 ZY7V3F3O9V5文档编码:CF8C7T5R8Y3 HY10E2U6K8C4 ZY7V3F3O9V5
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