错层位无煤柱开采上覆岩层运移规律研究

Study of Overburden Movement Law of Stagger Arrangement Roadway Layout Without Coal Pillar

以关键层理论为基础,采用理论分析、相似模拟和数值模拟相结合的方法,对错层位无煤柱开采工作面上覆岩层运移规律进行了系统研究分析。错层位首采工作面开采与传统开采相类似,而由于错层位取消了区段煤柱的留设,接续工作面开采与传统留煤柱开采有较大差别。

Based on the key stratum theory, by using the method of the combination of theoretical analysis, similar simulation and numerical simulation to study the law of overburden movement of stagger arrangement roadway layout without coal pillar. The first working face of stagger arrangement is similar to the traditional, however, due to the section coal pillar is cancelled, continuous working face mining has great difference with traditional mining leaving coal pillar.