正断层上盘防水煤柱合理宽度的研究

Study on Rational Width of Goal Pillar Positioned in the Upthrown Block of Normal Fault for Flood Prevention

本文根据正断层的破裂特点和煤柱的渗透性变化规律,将断层面法线方向上的防水煤柱分为断层裂隙带、弹性核和屈服带三个区域,在此基础上建立了断层上盘防水煤柱宽度的计算公式。

According to the fracturing features of normal fault and the raw of permeability distribution of the coal pillar, the authors propose that the coal pillar in the normal line of fault plane for flood prevention can be divided into three zones , i.e. the fracture zone, elastic zone and yield zone. And then the formulae for calculating the pillar width are derived.