Grouting Fractured Coal Permeability Evolution Based on Industrial CT Scanning

<table class="table-group" id="tab3"><tr><td><table class="table"><tr><td class="thead-hr" colspan="7"><hr/></td></tr><tr class="thead"><td class="align_left">Grout density<br/>kg m<sup>-3</sup></td><td class="align_center">Grouting pressure<br/>MPa</td><td class="align_center">Water-solid ratio</td><td class="align_center">Viscosity<br/>Pa s</td><td class="align_center">Sedimentation coefficient<br/>h<sup>-1</sup></td><td class="align_center"><svg height="6.1673pt" id="M31" style="vertical-align:-0.2063904pt" version="1.1" viewbox="-0.0498162 -5.96091 6.7023 6.1673" width="6.7023pt" 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="M483 97L471 123C436 91 401 65 392 65C388 65 384 74 390 106C414 239 444 378 457 429L455 433C444 433 429 436 416 439C392 444 368 448 344 448C281 448 204 415 152 376C71 315 23 205 23 103C23 21 57 -12 85 -12C114 -12 149 6 185 34C231 70 285 119 329 183H331L309 81C292 0 308 -12 326 -12C350 -12 421 24 483 97ZM374 387C370 363 356 291 345 261C315 193 181 50 139 50C124 50 110 71 110 118C110 224 153 331 218 379C238 394 271 402 301 402C329 402 359 394 374 387Z"></path></g></svg><br/>m</td><td class="align_center">Yield stress<br/>MPa</td></tr><tr><td class="thead-hr" colspan="7"><hr/></td></tr><tr><td class="align_left">1340</td><td class="align_center">0.2</td><td class="align_center">1.5</td><td class="align_center"><span style="width: 88.9971ptpx;"><svg height="15.0208pt" id="M32" style="vertical-align:-3.429399pt" version="1.1" viewbox="-0.0498162 -11.5914 88.9971 15.0208" width="88.9971pt" 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="M471 401C471 442 455 448 440 448C421 448 389 439 366 424C314 390 233 331 165 242H163L187 345C193 372 197 393 197 409C197 435 189 448 174 448C146 448 80 408 23 349L40 327C64 351 97 373 107 373C115 373 118 366 111 337L29 -4L36 -12C56 -4 83 3 110 9C123 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<div>Main parameters for simulation.</div>

Geofluids

tab3

Table 3

Table 3: Grouting Fractured Coal Permeability Evolution Based on Industrial CT Scanning 