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Bearing Capacity Chart - Delmag Diesel Pile Hammers

Delmag D100-13 Single Acting Diesel Pile Hammer
Bearing Capacity (tons) 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
54
4.65
102514
314
342
364
383
399
413
426
438
448
458
467
475
483
491
497
504
510
53
4.84
106703
322
350
372
391
408
423
436
447
458
468
477
486
494
501
509
515
522
52
5.04
111112
329
358
381
400
417
432
446
458
469
479
488
497
505
513
520
527
533
51
5.25
115742
337
366
390
410
427
442
456
468
479
490
499
508
517
524
532
539
545
50
5.47
120592
345
375
399
419
437
452
466
479
490
501
511
520
528
536
544
551
558
49
5.71
125883
354
384
409
429
447
463
477
490
502
513
523
532
541
549
557
564
571
48
5.97
131615
363
394
419
440
459
475
489
502
514
525
536
545
554
562
570
578
585
47
6.24
137567
372
404
429
451
470
487
501
515
527
538
549
559
568
576
584
592
599
46
6.52
143740
382
414
440
462
481
498
514
527
540
551
562
572
581
590
598
606
613
45
6.83
150574
392
425
452
474
494
511
527
541
554
566
576
587
596
605
614
622
629
44
7.16
157849
402
436
464
487
507
525
541
555
568
580
591
602
612
621
629
638
645
43
7.51
165565
413
448
476
500
520
539
555
570
583
595
607
618
628
637
646
654
662
42
7.88
173722
424
460
489
513
534
553
570
585
598
611
623
634
644
654
663
671
679
41
8.29
182761
437
473
503
528
549
568
586
601
615
628
640
651
662
672
681
690
698
40
8.72
192241
449
486
517
542
565
584
602
618
632
646
658
669
680
690
700
709
717
39
9.19
202603
462
501
532
558
581
601
619
635
650
664
677
688
700
710
720
729
738
38
9.70
213846
476
516
548
575
598
619
637
654
669
684
697
709
720
731
741
750
759
37
10.25
225972
491
531
564
592
616
638
657
674
690
704
717
730
742
753
763
773
782
36
10.84
238979
507
548
582
610
635
657
677
694
711
725
739
752
764
775
786
796
805
35
11.48
253088
523
565
600
630
655
678
698
716
733
748
762
775
788
799
810
821
830

Calculates bearing capacities based upon FHWA modified Gates formula:
Ru = 0.5 [ 1.75 √E ( log 10N ) - 100 ]
where
Ru = Driven bearing capacity of the pile in tons
N = Number of hammer blows per inch
E = Energy developed by the hammer per blow in ft-lbs

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