Analysis Of Dynamic Effects Of Mining Of Lateral Floor Roadway

Based on the Panyi East No.2 transport roadway when coal 2131(1) mining area is working this text adopt multi-research methods such as the theoretical analysis, computer numerical simulation, and field surveying to research into roof roadway displacement, plastic zone and stress. Finally, this article got roof roadway stress variation under mining. With the face of continuous to warding, roadway affected by the stress of mining experience and stability, increase and decrease process.By numerical simulation and the actual conditions of the site, this text determined the reasonable coal pillar width and used it to field practice. This study can avoid floor roadway to destroying under mining and reduce roadway maintenance costs improve mine conditions. It also could offer reference for similar conditions. Figure:[51] Table:[2] Reference:[57]...