Experimental Study on the Softening Characteristics of Sandstone and Mudstone in Relation to Moisture Content

<table class="table-group" id="tab5"><tr><td><table class="table"><tr><td class="thead-hr" colspan="7"><hr/></td></tr><tr class="thead"><td class="align_left">Type</td><td class="align_center">Tensile strength/MPa</td><td class="align_center">Compression strength/MPa</td><td class="align_center">Cohesion/MPa</td><td class="align_center">Frictional angle/°</td><td class="align_center">Density/ (kg/m<sup>∧3</sup>)</td><td class="align_center">Young’s modulus/GPa</td></tr><tr><td class="thead-hr" colspan="7"><hr/></td></tr><tr><td class="align_left">Surrounding rock</td><td class="align_center">47.90</td><td class="align_center">47.90</td><td class="align_center">10.15</td><td class="align_center">33.28</td><td class="align_center">2600</td><td class="align_center">10.17</td></tr><tr class="table-tr"><td colspan="7"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

Physical-mechanical parameters of surrounding rock (water content: 1.29%).

Shock and Vibration

tab5

Table 5

Table 5: Experimental Study on the Softening Characteristics of Sandstone and Mudstone in Relation to Moisture Content 