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Bearing Capacity Chart - Delmag Diesel Pile Hammers

Delmag D19-42 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 20852 229 253 273 290 305 318 329 340 349 358 366 374 381 388 394 400 405
52
5.40 21654 235 260 280 298 313 326 338 348 358 367 375 383 390 397 403 409 415
51
5.60 22456 241 267 287 305 320 334 346 356 366 375 384 392 399 406 412 419 424
50
5.80 23258 247 273 294 312 328 341 353 364 375 384 392 400 408 415 422 428 434
49
6.00 24060 253 279 301 319 335 349 361 372 383 392 401 409 417 424 430 437 443
48
6.30 25263 262 289 311 329 346 360 373 384 395 404 413 422 429 437 444 450 456
47
6.60 26466 270 298 321 340 356 371 384 395 406 416 425 434 442 449 456 463 469
46
6.80 27268 276 304 327 346 363 378 391 403 414 424 433 442 450 458 465 472 478
45
7.20 28872 287 316 339 359 376 392 405 418 429 439 449 458 466 474 481 488 495
44
7.50 30075 295 324 348 369 386 402 416 428 440 450 460 469 478 486 493 500 507
43
7.80 31278 303 333 357 378 396 412 426 439 450 461 471 480 489 497 505 512 519
42
8.20 32882 313 344 369 390 408 425 439 452 464 475 486 495 504 514 520 528 535
41
8.60 34486 323 354 380 402 421 437 452 466 478 489 500 509 518 527 535 543 550
40
9.10 36491 335 367 394 416 436 453 468 482 494 506 517 527 536 545 553 561 569
39
9.50 38095 344 377 405 427 447 465 480 494 507 519 530 540 550 559 567 576 583
38
10.00 40100 356 390 418 441 461 479 495 510 523 535 547 557 567 576 585 593 601
37
10.60 42506 369 404 433 457 478 496 513 528 542 554 566 577 587 596 605 614 622
36
11.20 44912 383 418 448 473 494 513 530 545 559 572 584 595 606 616 625 633 642
35
11.80 47318 395 432 462 488 510 529 547 563 577 590 602 614 624 634 644 653 661
34
12.50 50125 410 448 479 505 528 548 566 582 597 610 623 635 646 656 666 675 684

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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