Mechanism and Control Technology of Rockburst Induced by Thick Hard Roof and Residual Coal Pillar: A Case Study

<div>Layout of working faces. (a) Location of Bultai coal mine. (b) Spatial relationship of working faces. (c) AB-A<svg height="7.86364pt" id="M1" style="vertical-align:-0.04981995pt" version="1.1" viewbox="-0.0498162 -7.81382 4.53621 7.86364" width="4.53621pt" 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="M295 534L291 558C277 573 202 603 180 597L75 72L120 51L295 534Z"></path></g></svg>B<svg height="7.86364pt" id="M2" style="vertical-align:-0.04981995pt" version="1.1" viewbox="-0.0498162 -7.81382 4.53621 7.86364" width="4.53621pt" 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="M295 534L291 558C277 573 202 603 180 597L75 72L120 51L295 534Z"></path></g></svg> cross-section drawn.</div>

Geofluids

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Figure 1

Figure 1: Mechanism and Control Technology of Rockburst Induced by Thick Hard Roof and Residual Coal Pillar: A Case Study 