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structural geology, propagation mechanics and - Stanford School of ...

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0.2<br />

0.15<br />

0.1<br />

0.05<br />

0<br />

−0.05<br />

−0.1<br />

−0.15<br />

−0.2<br />

2<br />

1.5<br />

1<br />

0.5<br />

0<br />

−0.5<br />

−1<br />

−1.5<br />

6<br />

4<br />

2<br />

0<br />

−2<br />

−4<br />

−0.2 −0.1 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8<br />

−3 −2 −1 0 1 2 3 4 5 6<br />

−10 −5 0 5 10<br />

Figure 4.21c. Propagation simulations for two 25-m-long anticrack b<strong>and</strong>s approaching<br />

each other along parallel paths (orthogonal to the maximum remote compressive stress) at<br />

a normalized differential stress <strong>of</strong> 0.5 <strong>and</strong> initial spacing intervals <strong>of</strong> 2.5 cm (top), 25 cm<br />

(middle) <strong>and</strong> 2.5 m (bottom). Black lines indicate starting configurations, colored lines<br />

indicate simulated paths, all dimensions in meters.<br />

118<br />

15

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