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Bearing Capacity Chart - Delmag Diesel Pile Hammers

Delmag D36-32 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 41288 363 397 425 449 470 488 504 519 532 545 556 567 577 586 595 603 611
52 5.40 42876 371 407 435 460 481 499 516 531 544 557 569 579 590 599 608 617 625
51 5.60 44464 380 416 445 470 491 510 527 542 556 569 581 592 602 612 621 630 638
50 5.80 46052 389 425 455 480 502 521 538 554 568 581 593 604 615 625 634 643 651
49 6.00 47640 397 434 464 490 512 531 549 565 579 592 605 616 627 637 646 655 664
48 6.30 50022 409 447 478 504 527 547 565 581 596 610 622 634 645 655 665 674 683
47 6.60 52404 421 460 492 519 542 562 581 597 612 626 639 651 662 673 683 692 701
46 6.80 53992 429 468 501 528 551 572 591 608 623 637 650 662 674 685 695 704 713
45 7.20 57168 444 485 518 546 570 592 611 628 644 659 672 685 696 707 718 728 737
44 7.50 59550 456 497 531 559 584 606 626 643 659 674 688 701 713 724 735 745 754
43 7.80 61932 467 509 543 572 598 620 640 658 674 690 704 717 729 740 751 761 771
42 8.20 65108 481 524 560 589 615 638 659 677 694 710 724 737 750 762 773 783 793
41 8.60 68284 495 539 575 606 633 656 677 696 713 729 744 757 770 782 794 804 815
40 9.10 72254 512 558 595 626 654 678 699 719 736 753 768 782 795 808 819 830 841
39 9.50 75430 525 572 610 642 670 695 717 736 755 771 787 801 815 827 839 851 861
38 10.00 79400 542 589 628 661 690 715 738 758 777 794 810 825 838 851 864 875 886
37 10.60 84164 561 610 650 684 713 739 763 784 803 820 837 852 866 880 892 904 915
36 11.20 88928 579 630 671 706 736 763 787 808 828 846 863 879 893 907 920 932 944
35 11.80 93692 597 649 691 727 758 786 810 832 852 871 888 904 919 934 947 959 971
34 12.50 99250 617 671 714 751 783 811 837 859 880 899 917 934 949 964 977 990 1003

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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