Study on the pre-stressed support of the small coal pillar gob-side entry driving and the tunnel distortion
In order to avoid water inrush caused by driving and coal winning,the Pengzhuang Coal Mine in Juye Coal Field must make the track entry of next working face in advance and take it as the drainage roadway,which will undergo several dynamical pressures and the support will become extremely difficult.The high-strength high pre-stressed yield bolt support system is adopted to support the entry successfully.The driving and support scale relation of the gob-side entry driving with a small coal pillar is proposed through the appraisal and the analysis of observation data,which provides the theory basis of the analysis and the improvement for the disposable support success in the gob-side entry driving with a small coal pillar,and which provides the beneficial experience and model for the driving and support in this similar condition.
Small coal pillar Gob-side entry driving Pre-stressed support Tunnel distortion research
Li Mingyan Cao Junzhi Guo Kebao
School of Automobile and Transportation,Liaocheng Unversity,Liaocheng 252000 China Jennmar Jining Mine Roof Support Products Co.,Jining 272000 China
国际会议
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)
青岛
英文
324-329
2007-10-17（万方平台首次上网日期，不代表论文的发表时间）