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

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<strong>The</strong> Shear Angle β Non-Cavitating.<br />

Appendix D: <strong>The</strong> Shear Angle β Non-Cavitating.<br />

Table D-1: β for hb/hi=1, non-cavitating.<br />

hb/hi=1 32 º 37 º 42 º 47 º 52 º<br />

<br />

<br />

15 º 40.892 40.152 39.169 38.012 36.727<br />

18 º 39.024 38.380 37.483 36.402 35.184<br />

15<br />

21 º 37.355 36.781 35.947 34.924 33.756<br />

24 º 35.847 35.321 34.534 33.552 32.423<br />

27 º 34.468 33.975 33.220 32.269 31.166<br />

30 º 33.196 32.723 31.989 31.058 29.973<br />

15 º 37.967 36.937 35.707 34.334 32.854<br />

18 º 36.187 35.250 34.100 32.795 31.372<br />

30<br />

21 º 34.564 33.696 32.606 31.353 29.974<br />

24 º 33.072 32.255 31.209 29.994 28.648<br />

27 º 31.690 30.907 29.893 28.705 27.382<br />

30 º 30.401 29.640 28.646 27.476 26.166<br />

15 º 33.389 32.254 30.936 29.481 27.919<br />

18 º 31.792 30.726 29.467 28.061 26.539<br />

45<br />

21 º 30.326 29.310 28.092 26.720 25.224<br />

24 º 28.969 27.984 26.793 25.442 23.963<br />

27 º 27.700 26.733 25.557 24.218 22.745<br />

30 º 26.503 25.543 24.373 23.036 21.562<br />

15 º 28.220 26.928 25.482 23.917 22.253<br />

18 º 26.813 25.569 24.160 22.623 20.978<br />

60<br />

21 º 25.500 24.287 22.901 21.379 19.742<br />

24 º 24.264 23.067 21.692 20.174 18.535<br />

27 º 23.091 21.897 20.522 18.999 17.350<br />

30 º 21.967 20.767 19.382 17.845 16.177<br />

<strong>The</strong> shear angle as a function of the blade angle , the angle of internal friction , the soil/interface friction angle<br />

, for the non-cavitating cutting process, for hb/hi=1.<br />

Copyright © Dr.ir. S.A. Miedema TOC Page D-21 of 228

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