Analysis Of Dynamic Effects Of Mining On Floor Roadway

Based on the floor roadway layout of Dingji coal Westl mining area, this text adopt multi-research methods such as the theoretical analysis, computer numerical simulation, and field surveying to research into floor roadway displacement, plastic zone and stress. Finally, this article got floor roadway stress variation under mining: Floor roadway stress when distance ismand the stress is largest when distance is.then the stress reduce. 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:[39] Table:[1] Reference:[61]...