Study of the Stability Control of the Rock Surrounding Double-Key Strata Recovery Roadways in Shallow Seams

<table class="table-group" id="tab3"><tr><td><table class="table"><tr><td class="thead-hr" colspan="4"><hr/></td></tr><tr class="thead"><td class="align_left">Type</td><td class="align_center">Height (m)</td><td class="align_center">Setting load (kN)</td><td class="align_center">Yield load (kN)</td></tr><tr><td class="thead-hr" colspan="4"><hr/></td></tr><tr><td class="align_left">DZ35-30/110Q</td><td class="align_center">2.7∼3.5 m</td><td class="align_center">144∼188</td><td class="align_center">300</td></tr><tr class="table-tr"><td colspan="4"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Technical parameters of individual hydraulic props.</div>

Advances in Civil Engineering

tab3

Table 3

Table 3: Study of the Stability Control of the Rock Surrounding Double-Key Strata Recovery Roadways in Shallow Seams 