The Influence Mechanism of the Master Weak Interlayer on Bench Blasting Effect and Its Evaluation Method

<table class="table-group" id="tab4"><tr><td><table class="table"><tr><td class="thead-hr" colspan="9"><hr/></td></tr><tr class="thead"><td class="align_left">Density, <i>ρ</i> (kg/m<sup>3</sup>)</td><td class="align_center">Detonation velocity, <i>D</i> (m/s)</td><td class="align_center">Denotation pressure, <svg height="13.1967pt" id="M10" style="vertical-align:-4.560801pt" version="1.1" viewbox="-0.0498162 -8.6359 17.3719 13.1967" width="17.3719pt" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"><g transform="matrix(.013,0,0,-0.013,0,0)"><path d="M600 480C600 590 528 650 384 650H143L137 622C222 614 225 607 210 531L130 127C113 41 106 36 23 28L17 0H294L300 28C204 36 195 42 212 127L243 284L314 263C327 263 339 263 352 264C465 271 600 337 600 480ZM508 481C508 351 402 304 329 304C289 304 265 311 250 317L295 559C302 594 310 606 323 611C335 616 350 619 367 619C455 619 508 573 508 481Z"></path></g><g transform="matrix(.0091,0,0,-0.0091,6.656,3.132)"><path d="M690 629C653 643 577 667 483 667C225 667 24 528 24 292C24 92 174 -17 367 -17C448 -17 534 1 570 10C592 34 642 131 658 174C648 180 639 186 629 192C562 89 499 21 382 21C223 21 130 138 130 298C130 467 255 627 462 627C582 627 643 589 650 462L686 466C689 517 688 580 690 629Z"></path></g><g transform="matrix(.0091,0,0,-0.0091,12.57,3.132)"><path d="M434 650H168L162 618C248 609 258 608 243 528L174 155C163 93 153 39 138 1C110 -68 67 -98 24 -111L37 -147C55 -144 75 -136 94 -128C185 -87 232 -12 259 139L328 528C342 605 349 609 427 618L434 650Z"></path></g></svg> (GPa)</td><td class="align_center"><i>A</i> (GPa)</td><td class="align_center"><i>B</i> (GPa)</td><td class="align_center"><i>R</i><sub><i>1</i></sub></td><td class="align_center"><i>R</i><sub><i>2</i></sub></td><td class="align_center"><i>ω</i></td><td class="align_center"><i>E</i><sub>0</sub> (GPa)</td></tr><tr><td class="thead-hr" colspan="9"><hr/></td></tr><tr><td class="align_left">1150</td><td class="align_center">5000</td><td class="align_center">7.4</td><td class="align_center">214.4</td><td class="align_center">0.182</td><td class="align_center">40.2</td><td class="align_center">00.9</td><td class="align_center">0.15</td><td class="align_center">4.192</td></tr><tr class="table-tr"><td colspan="9"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Material parameters of the emulsion explosive material and state parameters of the JWL equation.</div>

Shock and Vibration

tab4

Table 4

Table 4: The Influence Mechanism of the Master Weak Interlayer on Bench Blasting Effect and Its Evaluation Method 