采空区内煤柱稳定性影响因素分析与评价方法

Influence Factors Analysis of Residual Pillar in Goaf and Its Evaluation Methods

为了更加客观、全面的评价采空区内大量煤柱的稳定性,将煤柱稳定性影响因素分为内部因素和外部因素2种类型,提出了根据外部因素进行定性评价、根据内部因素进行定量评价、定性评价与定量评价相结合的综合评价方法。实例分析表明,综合评价方法更具准确性、客观性和可靠性。

In order to evaluate the stability of a large number of coal pillars in goaf more objectively and comprehensively, influence factors of the stability of coal pillar was divided into internal and external factors. The paper propose a comprehensive evaluation method of the combination of qualitative evaluation and quantitative evaluation; qualitative evaluation is based on external factors, quantitative evaluation is based on internal factors. The example analysis shows that the comprehensive evaluation method is more accurate, objective and reliable, which overcomes the limitation of the single evaluation method, and enriches the theory of coal pillar stability evaluation.