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The Delft Sand, Clay & Rock Cutting Model, 2019a

The Delft Sand, Clay & Rock Cutting Model, 2019a

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<strong>The</strong> <strong>Delft</strong> <strong>Sand</strong>, <strong>Clay</strong> & <strong>Rock</strong> <strong>Cutting</strong> <strong>Model</strong>.<br />

Table G-2: a1 for hb/hi=2.<br />

hb/hi=2 32 º 37 º 42 º 47 º 52 º<br />

<br />

<br />

15 º 0.522 0.518 0.513 0.507 0.501<br />

18 º 0.518 0.514 0.509 0.503 0.497<br />

15 º<br />

21 º 0.514 0.510 0.505 0.499 0.493<br />

24 º 0.510 0.506 0.501 0.495 0.489<br />

27 º 0.506 0.502 0.497 0.491 0.485<br />

30 º 0.502 0.498 0.493 0.487 0.481<br />

15 º 0.531 0.526 0.521 0.516 0.511<br />

18 º 0.527 0.523 0.518 0.513 0.508<br />

30 º<br />

21 º 0.524 0.520 0.515 0.510 0.505<br />

24 º 0.521 0.517 0.512 0.507 0.501<br />

27 º 0.518 0.514 0.509 0.504 0.498<br />

30 º 0.514 0.510 0.506 0.500 0.495<br />

15 º 0.554 0.550 0.546 0.541 0.536<br />

18 º 0.552 0.548 0.544 0.539 0.534<br />

45 º<br />

21 º 0.550 0.546 0.542 0.537 0.532<br />

24 º 0.548 0.544 0.539 0.535 0.529<br />

27 º 0.546 0.542 0.537 0.532 0.527<br />

30 º 0.544 0.540 0.535 0.530 0.524<br />

15 º 0.575 0.569 0.563 0.556 0.549<br />

18 º 0.571 0.566 0.559 0.552 0.545<br />

60 º<br />

21 º 0.568 0.562 0.556 0.549 0.541<br />

24 º 0.565 0.559 0.552 0.545 0.536<br />

27 º 0.561 0.555 0.548 0.541 0.532<br />

30 º 0.558 0.552 0.544 0.536 0.527<br />

<strong>The</strong> weigh factor a1, for the determination of the weighted average permeability km, as a function of the blade<br />

angle α, the angle of internal friction φ, the soil/interface friction angle δ, for hb/hi=2<br />

Page G-34 of 228 TOC Copyright @Dr.ir. S.A. Miedema

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