Distribution of Side Abutment Stress in Roadway Subjected to Dynamic Pressure and Its Engineering Application

<table class="table-group" id="tab1"><tr><td><table class="table"><tr><td class="thead-hr" colspan="6"><hr/></td></tr><tr class="thead"><td align="left">Coal mine</td><td align="center">Coal seam</td><td align="center">Geologic age</td><td align="center">Average depth/m</td><td align="center">Average thickness/m</td><td align="center">Roof and floor strata</td></tr><tr><td class="thead-hr" colspan="6"><hr/></td></tr><tr><td align="left">Qianyingzi</td><td align="center"><svg height="11.3868pt" id="M7" style="vertical-align:-3.05102pt" version="1.1" viewbox="-0.0498162 -8.33578 11.3356 11.3868" width="11.3356pt" 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="M290 377C321 398 342 415 358 430C378 450 389 473 389 502C389 578 329 635 238 635H237C184 635 137 610 109 578L64 515L88 493C112 529 154 573 208 573S303 542 303 482C303 409 233 370 141 341L149 308C165 313 190 319 215 319C272 319 341 283 341 193C342 98 292 43 222 43C163 43 122 72 96 94C88 101 79 100 70 94C61 87 47 73 46 60C44 47 48 37 62 23C76 10 118 -12 165 -12C238 -12 430 62 430 223C430 297 379 359 290 375V377Z" id="g50-52"></path><glyph.data ascent="3443" descent="-2856" horiz-adv-x="487" vert-adv-y="487"></glyph.data></g><g transform="matrix(.0091,0,0,-0.0091,6.266,3.001)"><path d="M414 144C384 79 371 75 317 75H135L276 221C367 316 408 376 408 465C408 570 327 635 237 635C179 635 131 609 100 575L42 494L67 471C94 510 138 565 205 565C277 565 321 517 321 435C321 348 258 270 195 195C146 137 88 81 33 26V0H411C423 44 433 88 446 135L414 144Z" id="g50-51"></path><glyph.data ascent="3443" descent="-2856" horiz-adv-x="487" vert-adv-y="487"></glyph.data></g></svg> seam</td><td align="center">Permo-carboniferous period <br/>Lower Shihezi formation</td><td align="center">600</td><td align="center">3.3</td><td align="center">Immediate roof: 4.3-meter-thick mudstone; Main roof: 11.5-meter-thick fine sandstone; <br/>Immediate floor: 2.9-meter-thick mudstone; <br/>Main floor: 9.5-meter-thick fine sandstone</td></tr><tr class="table-tr"><td colspan="6"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

Characteristics of the <svg height="11.3868pt" id="M6" style="vertical-align:-3.05102pt" version="1.1" viewbox="-0.0498162 -8.33578 11.3356 11.3868" width="11.3356pt" 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="M290 377C321 398 342 415 358 430C378 450 389 473 389 502C389 578 329 635 238 635H237C184 635 137 610 109 578L64 515L88 493C112 529 154 573 208 573S303 542 303 482C303 409 233 370 141 341L149 308C165 313 190 319 215 319C272 319 341 283 341 193C342 98 292 43 222 43C163 43 122 72 96 94C88 101 79 100 70 94C61 87 47 73 46 60C44 47 48 37 62 23C76 10 118 -12 165 -12C238 -12 430 62 430 223C430 297 379 359 290 375V377Z" id="g50-52"></path><glyph.data ascent="3443" descent="-2856" horiz-adv-x="487" vert-adv-y="487"></glyph.data></g><g transform="matrix(.0091,0,0,-0.0091,6.266,3.001)"><path d="M414 144C384 79 371 75 317 75H135L276 221C367 316 408 376 408 465C408 570 327 635 237 635C179 635 131 609 100 575L42 494L67 471C94 510 138 565 205 565C277 565 321 517 321 435C321 348 258 270 195 195C146 137 88 81 33 26V0H411C423 44 433 88 446 135L414 144Z" id="g50-51"></path><glyph.data ascent="3443" descent="-2856" horiz-adv-x="487" vert-adv-y="487"></glyph.data></g></svg> coal seam.

Shock and Vibration

tab1

Table 1

Table 1: Distribution of Side Abutment Stress in Roadway Subjected to Dynamic Pressure and Its Engineering Application 