Dynamic Brittle Instability Characteristics of 2000 m Deep Sandstone Influenced by Mineral Composition

<table class="table-group" id="tab4"><tr><td><table class="table"><tr><td class="thead-hr" colspan="5"><hr/></td></tr><tr class="thead"><td class="align_left">Number</td><td class="align_center"><span style="width: 35.7598ptpx;"><svg height="18.4357pt" id="M6" style="vertical-align:-5.726pt" version="1.1" viewbox="-0.0498162 -12.7097 35.7598 18.4357" width="35.7598pt" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"><g transform="matrix(.013,0,0,-0.013,0,.007)"><path d="M480 853C480 879 456 900 424 900C303 900 237 760 239 491L245 -163C246 -299 234 -327 208 -327C187 -327 171 -289 137 -289C112 -289 90 -309 90 -335C90 -363 116 -389 155 -389C277 -389 342 -245 338 99L332 673C330 820 346 844 370 844C396 844 396 808 432 808C460 808 480 826 480 853Z"></path></g><g transform="matrix(.0091,0,0,-0.0091,7.438,-8.495)"><path d="M396 374C396 399 365 451 262 451C173 451 84 405 84 327C84 295 107 257 157 243V241C91 226 24 184 24 119C24 41 92 -12 189 -12C272 -12 344 31 386 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class="align_left">S1-4</td><td class="align_center">39.836</td><td class="align_center">15.853</td><td class="align_center">4.248</td><td class="align_center">0.0979</td></tr><tr><td class="align_left">S1-5</td><td class="align_center">38.743</td><td class="align_center">17.809</td><td class="align_center">1.863</td><td class="align_center">0.088</td></tr><tr><td class="align_left">S1-6</td><td class="align_center">36.863</td><td class="align_center">19.560</td><td class="align_center">1.254</td><td class="align_center">0.0793</td></tr><tr><td class="align_left">S1-7</td><td class="align_center">47.819</td><td class="align_center">21.307</td><td class="align_center">1.142</td><td class="align_center">0.0783</td></tr><tr><td class="align_left">S1-8</td><td class="align_center">39.869</td><td class="align_center">13.704</td><td class="align_center">4.832</td><td class="align_center">0.1127</td></tr><tr class="table-tr"><td colspan="5"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Brittleness calculation table of deep sandstone.</div>

Shock and Vibration

tab4

Table 4

Table 4: Dynamic Brittle Instability Characteristics of 2000 m Deep Sandstone Influenced by Mineral Composition 