PDA高应变讲义教学文案

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1、PDA高应变讲义 Still waters run deep.流静水深流静水深,人静心深人静心深 Where there is life,there is hope。有生命必有希望。有生命必有希望韩韩 亮亮欧美大地仪器设备有限公司 部门经理岩泰高新技术顾问有限公司 总经理 RR初打初打复打复打-1 天天(粘土粘土)加速度传感器 对于摩擦桩来讲，锤重最低为Qu的1%一般为Qu的1.52%锤垫厚度一般约50mm（胶合板为佳）根据实测应力情况控制落高，不能出现有破坏性的应力；重锤低击原则一般桩身材料参数一般桩身材料参数SPEMWSk/ft3k/in2ft/sSteel0.49230,00016,81

2、0Concrete0.1503,500 to 7,000 10,000 to 15,000Timber0.040 to 0.0801,000 to 4,000 10,000 to 15,000kN/m3Mpam/sSteel 77210,0005,123Concrete24 24,000 to 48,0003,000 to 4,500Timber6.5 to 137,000 to 28,0003,000 to 4,500T/m3T/cm2m/sSteel 7.852,1005,123Concrete2.45240 to 4803,000 to 4,500Timber0.7 to 1.470 t

3、o 2803,000 to 4,500英制英制公制公制米制米制起跳点起跳点峰峰值值工程地质情况，如土层性质、分层及其力学性质 选择记录-实际测量的是实际测量的是2L/c时间时间 若已知若已知L,可计算可计算c若已知若已知c,可计算可计算L若拉伸反射清晰，可估算若拉伸反射清晰，可估算 桩长（由假设的桩长（由假设的c）缺陷位置缺陷位置(由由 c)土阻力分布土阻力分布(以第一起跳点为参以第一起跳点为参考考)最好使用最好使用“起跳点起跳点-起跳点起跳点”法法(总是可靠总是可靠)如果上行波与下行如果上行波与下行波形状相似，可使波形状相似，可使用用“峰峰-峰峰”法确定法确定2L/cRR/2提供提供Rs分布

4、信息分布信息斜率越大表明单斜率越大表明单位侧摩阻力越大位侧摩阻力越大 选择高值，结果偏于保守 如果速度在2L/c前为负,则上部土阻力可能早期卸载，可使用卸载法长摩擦桩R桩侧桩侧R桩端桩端第一次拟合第一次拟合 (差差)最终拟合结果最终拟合结果(好好)参数调整参数调整.实际上是一迭代计算过程实际上是一迭代计算过程CAPWAP 拟合可由计算机拟合可由计算机以完全自动方式完成以完全自动方式完成 t t t t t t t Ri=Rdi+RsiSkRk卸载水平UNld（Ruk）最大卸载弹限CSkn（QSkn）最大加载弹限QSkn极限静阻力Ruk重加载水平LSkn（Ruk）Ksk弹限弹限桩侧土静阻力模型卸

5、载弹限卸载弹限动阻力模型RdVEX2;CLARK;SOFT-ROCK;Pile:EX-2Test:02-Jun-1993MKT DE 70B,HP 14 X 89;Blow:627 CAPWAP 2003-1GRL Engineers,Inc.Page 1Analysis:01-Jun-2003CAPWAP FINAL RESULTSTotal CAPWAP Capacity:764.6;along Shaft 79.5;at Toe 685.1 kipsftftkipskipskipskips/ftksfs/ftin 764.61 6.7 4.2 2.0 762.6 2.0 0.30 0.0

6、6 0.255 0.0602 13.5 11.0 1.0 761.6 3.0 0.15 0.03 0.255 0.0603 20.2 17.7 1.0 760.6 4.0 0.15 0.03 0.255 0.0604 26.9 24.4 1.0 759.6 5.0 0.15 0.03 0.255 0.0605 33.7 31.2 2.0 757.6 7.0 0.30 0.06 0.255 0.0606 40.4 37.9 3.0 754.6 10.0 0.45 0.10 0.255 0.0607 47.1 44.6 4.0 750.6 14.0 0.59 0.13 0.255 0.0608 5

7、3.8 51.3 18.6 732.0 32.6 2.76 0.59 0.255 0.0609 60.6 58.1 1.0 731.0 33.6 0.15 0.03 0.255 0.06010 67.3 64.8 1.0 730.0 34.6 0.15 0.03 0.255 0.06011 74.0 71.5 1.0 729.0 35.6 0.15 0.03 0.255 0.06012 80.8 78.3 4.9 724.1 40.5 0.73 0.16 0.255 0.06013 87.5 85.0 39.1 685.1 79.5 5.80 1.24 0.255 0.060Avg.Skin

8、6.1 0.94 0.19 0.255 0.060Toe 685.1 503.31 0.066 0.120Soil Model Parameters/ExtensionsSkinToeCase Damping Factor 0.437 0.971Unloading Quake(%of loading quake)99100Reloading Level(%of Ru)100100Unloading Level(%of Ru)78CAPWAP match quality:2.88(Wave Up Match)Observed:final set=0.050 in;blow count=240 b

9、/ftObserved:final set=0.009 in;blow count=1323 b/ftEX2;CLARK;SOFT-ROCK;Pile:EX-2Test:02-Jun-1993MKT DE 70B,HP 14 X 89;Blow:627 CAPWAP 2003-1GRL Engineers,Inc.Page 2Analysis:01-Jun-2003EXTREMA TABLEPileDist.max.min.max.max.max.max.max.SgmntBelowForceForceComp.Tens.Trnsfd.Veloc.Displ.No.GagesStressStr

10、essEnergyftkipskipsksiksikip-ftft/sin1 3.4 586.4 -24.4 22.549 -0.937 23.53 11.7 0.7382 6.7 588.7 -24.1 22.635 -0.927 23.40 11.6 0.7254 13.5 585.7 -22.1 22.520 -0.849 22.79 11.5 0.6996 20.2 587.3 -21.1 22.583 -0.810 22.30 11.4 0.6708 26.9 590.1 -19.6 22.691 -0.753 21.73 11.2 0.63710 33.7 594.8 -18.4

11、22.870 -0.706 21.02 11.0 0.60011 37.0 592.6 -17.0 22.787 -0.653 20.42 10.9 0.57912 40.4 598.9 -17.2 23.029 -0.661 20.09 10.8 0.55913 43.8 596.6 -15.3 22.940 -0.590 19.39 10.6 0.53914 47.1 607.0 -16.4 23.339 -0.629 19.05 10.4 0.51815 50.5 602.3 -15.2 23.161 -0.585 18.21 10.2 0.49616 53.8 608.4 -15.4

12、23.393 -0.592 17.79 10.0 0.47317 57.2 568.4 -7.2 21.857 -0.276 15.45 9.9 0.44918 60.6 576.1 -17.7 22.152 -0.682 14.91 9.8 0.42319 63.9 589.0 -27.0 22.650 -1.039 14.16 9.7 0.39420 67.3 624.9 -35.8 24.028 -1.376 13.38 9.6 0.36321 70.7 668.4 -42.0 25.701 -1.613 12.39 9.4 0.32922 74.0 718.3 -48.2 27.622

13、 -1.852 11.36 9.2 0.29323 77.4 756.7 -54.5 29.095 -2.095 10.14 8.8 0.25524 80.8 785.1 -61.7 30.188 -2.371 8.94 8.1 0.21625 84.1 793.0 -61.2 30.492 -2.355 7.59 6.8 0.17826 87.5 806.4 -63.8 31.007 -2.451 6.21 5.3 0.140Absolute 87.5 31.007(T=27.2 ms)87.5 -2.451(T=44.2 ms)CASE METHODJ=0.0 0.1 0.2 0.3 0.

14、4 0.5 0.6 0.7 0.8 0.9RS1 830.3 799.1 767.8 736.6 705.3 674.1 642.9 611.6 580.4 549.2RMX 862.6 839.8 821.8 808.3 795.0 782.0 769.8 757.8 745.7 733.7RSU 836.4 805.8 775.2 744.6 713.9 683.3 652.7 622.1 591.4 560.8RAU=595.0(kips);RA2=757.7(kips)Current CAPWAP Ru=764.6(kips);Corresponding J(Rs)=0.21;J(Rx

15、)=0.64ft/sft/skipskipskipsininkip-ftkips 11.95 0.00 554.8 587.9 587.9 0.747 0.054 23.7 709.9EX2;CLARK;SOFT-ROCK;Pile:EX-2Test:02-Jun-1993MKT DE 70B,HP 14 X 89;Blow:627 CAPWAP 2003-1GRL Engineers,Inc.Page 3Analysis:01-Jun-2003PILE PROFILE AND PILE MODELDepthAreaE-ModulusSpec.WeightCircumf.ftin2ksilb/

16、ft3ft 0.00 26.00 29999.9 492.000 4.667 87.50 26.00 29999.9 492.000 4.667Toe Area 1.361ft2Top Segment Length 3.37 ft,Top Impedance 46.41 kips/ft/sPile Damping 1.0%,Time Incr 0.200 ms,Wave Speed 16810.0 ft/s CAPWAP Demo;Pile:36x5 inchTest:12-Sep-2000 MENCK 2500;Blow:398 CAPWAP Ver.2003-1GRL Engineers,

17、Inc.OP:FRPage 1Analysis:09-Feb-2003CAPWAP FINAL RESULTSTotal CAPWAP Capacity:804.4;along Shaft 96.4;at Toe 708.0 kipsSoilDist.DepthRuForceSumUnitUnitSmithQuakeSgmntBelowBelowin PileofResist.Resist.DampingNo.GagesGradeRu(Depth)(Area)Factorftftkipskipskipskips/ftksfs/ftin 804.41 79.4 5.8 16.9 787.5 16

18、.9 2.55 0.27 0.243 0.1002 86.0 12.4 9.5 778.0 26.4 1.44 0.15 0.243 0.1003 92.6 19.0 1.9 776.1 28.3 0.29 0.03 0.243 0.1004 99.2 25.7 0.0 776.1 28.3 0.00 0.00 0.000 0.1005 105.8 32.3 0.0 776.1 28.3 0.00 0.00 0.000 0.1006 112.5 38.9 0.0 776.1 28.3 0.00 0.00 0.000 0.1007 119.1 45.5 6.5 769.6 34.8 0.98 0

19、.10 0.243 0.1008 125.7 52.1 11.3 758.3 46.1 1.71 0.18 0.243 0.1009 132.3 58.7 11.3 747.0 57.4 1.71 0.18 0.243 0.10010 138.9 65.3 6.5 740.5 63.9 0.98 0.10 0.243 0.10011 145.5 72.0 6.5 734.0 70.4 0.98 0.10 0.243 0.10012 152.2 78.6 6.5 727.5 76.9 0.98 0.10 0.243 0.10013 158.8 85.2 6.5 721.0 83.4 0.98 0

20、.10 0.243 0.10014 165.4 91.8 6.5 714.5 89.9 0.98 0.10 0.243 0.10015 172.0 98.4 6.5 708.0 96.4 0.98 0.10 0.243 0.100Avg.Skin 6.4 0.98 0.10 0.243 0.100Toe 708.0 100.16 0.092 0.830Soil Model Parameters/ExtensionsSkinToeCase Damping Factor 0.111 0.309Smith TypeReloading Level(%of Ru)100100Unloading Leve

21、l(%of Ru)75Resistance Gap(included in Toe Quake)(in)0.030CAPWAP match quality:3.96(Wave Up Match)Observed:final set=0.197 in;blow count=61 b/ftComputed:final set=0.121 in;blow count=100 b/ft CAPWAP Demo;Pile:36x5 inchTest:12-Sep-2000 MENCK 2500;Blow:398 CAPWAP Ver.2003-1GRL Engineers,Inc.OP:FRPage 2

22、Analysis:09-Feb-2003EXTREMA TABLEPileDist.max.min.max.max.max.max.max.SgmntBelowForceForceComp.Tens.Trnsfd.Veloc.Displ.No.GagesStressStressEnergyftkipskipsksiksikip-ftft/sin1 3.3 1419.4 -559.9 2.914 -1.150 69.27 6.7 1.3012 6.6 1419.4 -566.2 2.914 -1.163 69.21 6.7 1.2965 16.5 1420.0 -551.5 2.915 -1.1

23、32 69.00 6.7 1.2778 26.5 1419.5 -518.3 2.914 -1.064 68.68 6.7 1.25311 36.4 1418.3 -476.7 2.912 -0.979 68.25 6.7 1.22514 46.3 1419.8 -434.1 2.915 -0.891 67.67 6.7 1.19517 56.2 1431.7 -394.7 2.939 -0.810 66.93 6.7 1.16120 66.2 1440.1 -353.3 2.957 -0.725 65.98 6.6 1.12623 76.1 1442.1 -297.7 2.961 -0.61

24、1 64.73 6.6 1.10626 86.0 1401.1 -267.7 2.877 -0.550 60.86 6.6 1.09129 95.9 1378.0 -196.0 2.829 -0.402 57.21 6.5 1.07432 105.8 1393.5 -118.1 2.861 -0.242 55.58 6.7 1.05435 115.8 1404.9 -117.0 2.884 -0.240 55.11 7.2 1.03338 125.7 1397.5 -107.4 2.869 -0.221 53.35 8.0 1.01041 135.6 1253.0 -82.1 2.572 -0

25、.169 48.50 8.5 0.98544 145.5 1079.6 -74.0 2.217 -0.152 46.60 9.6 0.96047 155.5 954.6 -57.3 1.960 -0.118 43.37 9.8 0.93248 158.8 873.8 -57.2 1.794 -0.117 43.10 9.2 0.92349 162.1 843.2 -51.8 1.731 -0.106 41.59 8.8 0.91350 165.4 790.2 -53.2 1.622 -0.109 41.30 9.0 0.90351 168.7 813.5 -49.6 1.670 -0.102

26、39.80 9.1 0.89352 172.0 865.3 -54.5 1.777 -0.112 39.52 9.0 0.883Absolute 79.4 2.963(T=30.8 ms)6.6 -1.163(T=47.4 ms)CASE METHODJ=0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9RS1 666.8 493.6 320.5 147.3 0.0 0.0 0.0 0.0 0.0 0.0RMX 1060.4 974.9 948.5 922.0 897.9 880.5 874.2 873.5 872.7 871.9RSU 666.8 493.6 32

27、0.5 147.3 0.0 0.0 0.0 0.0 0.0 0.0RAU=864.6(kips);RA2=891.2(kips)Current CAPWAP Ru=804.4(kips);Corresponding J(Rs)=0.00;J(Rx)=1.00VMXVFNVT1*ZFT1FMXDMXDFNEMXRLTft/sft/skipskipskipsininkip-ftkips 6.86 0.00 1221.9 1176.6 1420.4 1.313 0.197 69.5 1104.1 CAPWAP Demo;Pile:36x5 inchTest:12-Sep-2000 MENCK 250

28、0;Blow:398 CAPWAP Ver.2003-1GRL Engineers,Inc.OP:FRPage 3Analysis:09-Feb-2003PILE PROFILE AND PILE MODELDepthAreaE-ModulusSpec.WeightCircumf.ftin2ksilb/ft3ft 0.00 486.95 5751.4 150.000 9.425 172.00 486.95 5751.4 150.000 9.425Toe Area 7.069ft2Top Segment Length 3.31 ft,Top Impedance 210.15 kips/ft/sP

29、ile Damping 2.0%,Time Incr 0.248 ms,Wave Speed 13330.0 ft/sEX2;CLARK;SOFT-ROCK;Pile:EX-2Test:02-Jun-1993MKT DE 70B,HP 14 X 89;Blow:627 CAPWAP 2003-1GRL Engineers,Inc.Page 1Analysis:01-Jun-2003CAPWAP FINAL RESULTSTotal CAPWAP Capacity:764.6;along Shaft 79.5;at Toe 685.1 kipsftftkipskipskipskips/ftksf

30、s/ftin 764.61 6.7 4.2 2.0 762.6 2.0 0.30 0.06 0.255 0.0602 13.5 11.0 1.0 761.6 3.0 0.15 0.03 0.255 0.0603 20.2 17.7 1.0 760.6 4.0 0.15 0.03 0.255 0.0604 26.9 24.4 1.0 759.6 5.0 0.15 0.03 0.255 0.0605 33.7 31.2 2.0 757.6 7.0 0.30 0.06 0.255 0.0606 40.4 37.9 3.0 754.6 10.0 0.45 0.10 0.255 0.0607 47.1

31、44.6 4.0 750.6 14.0 0.59 0.13 0.255 0.0608 53.8 51.3 18.6 732.0 32.6 2.76 0.59 0.255 0.0609 60.6 58.1 1.0 731.0 33.6 0.15 0.03 0.255 0.06010 67.3 64.8 1.0 730.0 34.6 0.15 0.03 0.255 0.06011 74.0 71.5 1.0 729.0 35.6 0.15 0.03 0.255 0.06012 80.8 78.3 4.9 724.1 40.5 0.73 0.16 0.255 0.06013 87.5 85.0 39

32、.1 685.1 79.5 5.80 1.24 0.255 0.060Avg.Skin 6.1 0.94 0.19 0.255 0.060Toe 685.1 503.31 0.066 0.120Soil Model Parameters/ExtensionsSkinToeCase Damping Factor 0.437 0.971Unloading Quake(%of loading quake)99100Reloading Level(%of Ru)100100Unloading Level(%of Ru)78CAPWAP match quality:2.88(Wave Up Match)

33、Observed:final set=0.050 in;blow count=240 b/ftObserved:final set=0.009 in;blow count=1323 b/ftEX2;CLARK;SOFT-ROCK;Pile:EX-2Test:02-Jun-1993MKT DE 70B,HP 14 X 89;Blow:627 CAPWAP 2003-1GRL Engineers,Inc.Page 2Analysis:01-Jun-2003EXTREMA TABLEPileDist.max.min.max.max.max.max.max.SgmntBelowForceForceCo

34、mp.Tens.Trnsfd.Veloc.Displ.No.GagesStressStressEnergyftkipskipsksiksikip-ftft/sin1 3.4 586.4 -24.4 22.549 -0.937 23.53 11.7 0.7382 6.7 588.7 -24.1 22.635 -0.927 23.40 11.6 0.7254 13.5 585.7 -22.1 22.520 -0.849 22.79 11.5 0.6996 20.2 587.3 -21.1 22.583 -0.810 22.30 11.4 0.6708 26.9 590.1 -19.6 22.691

35、 -0.753 21.73 11.2 0.63710 33.7 594.8 -18.4 22.870 -0.706 21.02 11.0 0.60011 37.0 592.6 -17.0 22.787 -0.653 20.42 10.9 0.57912 40.4 598.9 -17.2 23.029 -0.661 20.09 10.8 0.55913 43.8 596.6 -15.3 22.940 -0.590 19.39 10.6 0.53914 47.1 607.0 -16.4 23.339 -0.629 19.05 10.4 0.51815 50.5 602.3 -15.2 23.161

36、 -0.585 18.21 10.2 0.49616 53.8 608.4 -15.4 23.393 -0.592 17.79 10.0 0.47317 57.2 568.4 -7.2 21.857 -0.276 15.45 9.9 0.44918 60.6 576.1 -17.7 22.152 -0.682 14.91 9.8 0.42319 63.9 589.0 -27.0 22.650 -1.039 14.16 9.7 0.39420 67.3 624.9 -35.8 24.028 -1.376 13.38 9.6 0.36321 70.7 668.4 -42.0 25.701 -1.6

37、13 12.39 9.4 0.32922 74.0 718.3 -48.2 27.622 -1.852 11.36 9.2 0.29323 77.4 756.7 -54.5 29.095 -2.095 10.14 8.8 0.25524 80.8 785.1 -61.7 30.188 -2.371 8.94 8.1 0.21625 84.1 793.0 -61.2 30.492 -2.355 7.59 6.8 0.17826 87.5 806.4 -63.8 31.007 -2.451 6.21 5.3 0.140Absolute 87.5 31.007(T=27.2 ms)87.5 -2.4

38、51(T=44.2 ms)CASE METHODJ=0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9RS1 830.3 799.1 767.8 736.6 705.3 674.1 642.9 611.6 580.4 549.2RMX 862.6 839.8 821.8 808.3 795.0 782.0 769.8 757.8 745.7 733.7RSU 836.4 805.8 775.2 744.6 713.9 683.3 652.7 622.1 591.4 560.8RAU=595.0(kips);RA2=757.7(kips)Current CAPWAP

39、Ru=764.6(kips);Corresponding J(Rs)=0.21;J(Rx)=0.64ft/sft/skipskipskipsininkip-ftkips 11.95 0.00 554.8 587.9 587.9 0.747 0.054 23.7 709.9EX2;CLARK;SOFT-ROCK;Pile:EX-2Test:02-Jun-1993MKT DE 70B,HP 14 X 89;Blow:627 CAPWAP 2003-1GRL Engineers,Inc.Page 3Analysis:01-Jun-2003PILE PROFILE AND PILE MODELDepthAreaE-ModulusSpec.WeightCircumf.ftin2ksilb/ft3ft 0.00 26.00 29999.9 492.000 4.667 87.50 26.00 29999.9 492.000 4.667Toe Area 1.361ft2Top Segment Length 3.37 ft,Top Impedance 46.41 kips/ft/sPile Damping 1.0%,Time Incr 0.200 ms,Wave Speed 16810.0 ft/s抗作适当调整，同时应注意土阻力分布的合理性。