Numerical Simulation of Abutment Pressure Distribution of Large Dip Angle Stope
The differences between large dip angle seam and other dip angle seam in abutment pressure distribution are studied with the numerical simulation software of FLAC , in the light of No. 3237 working face in Zhaogezhuang Mine.The research results show that the value of the peak of the lead abutment pressure, the value of the remnant abutment pressure and the value of the goaf abutment pressure decline, the distance from the peak of the lead abutment pressure to the coal wall increases , the lead abutment pressure distribution along the dip of seam becomes more and more non - symmetric, when changing from gentle inclination and inclination to large dip angle; while changing from large dip angle to steep inclination, the results are just the opposite; The lead abutment pressure is almost in the middle and lower parts of the seam along the dip direction, when the dip angle reaches the upper limit of large dip angle (55°).
large dip angle stope abutment pressure numerical simulation FLAC3D
Chen Daye Hao Guoqiang
College of Geoscience and Surveying Engineering,China University of Mining and Technology (Beijing) ,Beijing,100083,China
国际会议
the 4th International Symposium on Mine Safety (2012) 第四届国际矿山安全学术研讨会(2012)
阜新
英文
124-128
2012-08-04（万方平台首次上网日期，不代表论文的发表时间）