断层防水煤柱公式适用性分析及应用

Applicability Analysis and Application of Fault Waterproof Pillar Formula

断层防水煤柱不但关系矿井采掘安全,而且直接影响井田可采储量和矿井开拓布局。在分析断层防水煤柱计算公式的几何模型和力学原理基础上,对公式的适用性进行分析。结果表明,断层倾角和煤层倾角是影响计算精度的主要因素。提出了降低计算误差的方法,并应用于实例计算。经验证,优化力学模型和参数取值,可以降低计算误差,提高断层防水煤柱的设计精度,有利于矿井的资源回收和采掘安全。

Not only mining safety, but also coalfield recoverable reserves and mine development layout were influenced by fault water- proof pillar. On the basis of analysis results of geometric model and mechanical principles of fault waterproof pillar formula, then formu- la applicability was analyzed. The results illustrated that the main factors that influenced calculation accuracy was fault inclination angle and coal seam inclination angle. The reducing calculation error method was put forward, and applied in practical. The results showed optimal mechanical model and parameters could reduced calculation error, the designing precision of fault waterproof pillar could im- proved obviously, and it was better for mine resources recovery and safety.