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Bearing Capacity Chart - Delmag Diesel Pile Hammers

Delmag D62-22 Single Acting Diesel Pile Hammer
Bearing Capacity (kips) for a Pile Set (blows/in) of:
Blows Per Min. Piston Stroke (ft) Hammer Energy (ft-lbs) 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 8.0 8.5 9.0 9.5 10.0
53 5.20 70928 506 552 588 620 647 671 692 711 729 745 760 774 787 799 811 822 832
52 5.40 73656 518 564 602 633 661 685 707 727 745 761 776 791 804 816 828 839 850
51 5.60 76384 529 576 614 647 675 700 722 742 760 777 792 807 820 833 845 857 867
50 5.80 79112 540 588 627 660 689 714 736 757 775 792 808 823 837 850 862 873 884
49 6.00 81840 551 600 639 673 702 728 751 771 790 808 824 839 853 866 878 890 901
48 6.30 85932 567 617 658 692 722 748 772 793 812 830 847 862 876 890 903 915 926
47 6.60 90024 583 634 676 711 741 768 792 814 834 853 869 885 899 913 926 938 950
46 6.80 92752 593 645 687 723 754 781 805 828 848 866 883 899 914 928 942 954 966
45 7.20 98208 614 667 710 747 779 807 832 854 875 894 912 928 944 958 972 985 997
44 7.50 102300 628 682 727 764 797 825 851 874 895 915 933 950 965 980 994 1007 1019
43 7.80 106392 643 698 743 781 814 844 870 893 915 935 953 970 986 1001 1016 1029 1042
42 8.20 111848 661 718 765 804 838 868 894 919 941 961 980 997 1014 1029 1044 1057 1071
41 8.60 117304 680 738 785 825 860 891 918 943 966 987 1006 1024 1041 1056 1071 1085 1099
40 9.10 124124 702 762 811 852 888 919 947 973 996 1018 1038 1056 1073 1090 1105 1119 1133
39 9.50 129580 720 781 831 873 909 941 970 996 1020 1042 1062 1081 1099 1115 1131 1146 1160
38 10.00 136400 741 804 855 898 935 968 998 1025 1049 1072 1093 1112 1130 1147 1163 1178 1193
37 10.60 144584 766 830 883 927 966 1000 1031 1058 1083 1106 1128 1148 1166 1184 1200 1216 1231
36 11.20 152768 790 856 910 956 996 1031 1062 1090 1116 1140 1162 1183 1202 1220 1237 1253 1268
35 11.80 160952 813 881 937 984 1025 1061 1093 1122 1148 1173 1195 1216 1236 1255 1272 1289 1304
34 12.50 170500 840 910 967 1016 1058 1095 1128 1158 1185 1210 1233 1255 1275 1294 1312 1329 1345

Calculates bearing capacities based upon FHWA modified Gates formula:
Ru = [ 1.75 √E ( log 10N ) - 100 ]
where
Ru = Driven bearing capacity of the pile in kips
N = Number of hammer blows per inch
E = Energy developed by the hammer per blow in ft-lbs

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