Study on wide stripe mining based on the principles of overlying strata spatial structures and yield coal pillar

摘要：

Applying the principles of overlying strata spatial structures and the material graduated failure mechanism,the yield coal pillar was designed which gradually transferred the overburden rock loading to large-size unyielding coal mass or surrounding rock nearby.Based on this theory,a new method of designing wide stripe mining parameters was presented which was feasibility and superiority by theoretical analysis.Then an example on the spot with reasonable wide stripe parameters was given.The surface subsidence coefficient and subsidence control results were analyzed by the way of combining the FLAC3D numerical analysis with scene actual observation.Both the theoretical analysis and the scene actual result indicated the rationality of the wide stripe parameters designing method which was based on the principles of overlying strata spatial structures and yield coal pillar.It could control surface subsidence as well as improving the resources recovery rate.

关键词： Overlying strata spatial structures of slope The principle of stress control Yield coal pillar Wide stripe mining Surface subsidence control

作者: Ma Qihua Cao Jianjun Wang Yitai

作者单位: Key Laboratory of Mine Disaster Prevention and Control,Shandong University of Science and Technology,Qingdao 266510,China

会议类型: 国际会议

会议名称: The 2007 International Conference on Mine Hazards Prevention and Control(2007矿山灾害预防与控制国际学术会议)

会议地点: 青岛

会议语种:英文

页码: 219-225

在线出版日期: 2007-10-17（万方平台首次上网日期，不代表论文的发表时间）