摘要
以山东省济宁市太平煤矿为例,采用煤柱模拟试验和数值分析手段,对薄基岩条带开采时所留设煤柱的应力应变状态、煤柱强度结构及煤柱长期稳定性进行了深入的分析与研究,揭示了煤柱稳定性及煤柱应力分布与条采尺寸、采出率、覆岩特征的相互关系,进行了条带煤柱的稳定性评价,为工程实践提供了理论依据。
To take the Taiping coalmine in Jining City, Shandong Province as an example, the authors introduced measures of simulating test and numerical analysis, carried out in-depth analysis and research of pillar stress and strain states, strength mechanics and long-term stability of leaved pillars during thin bedrock partial extraction. Revealed interrelation between pillar stability, stress distribution and partial extraction dimension, recovery ratio, overlying strata features. Carried out partial extraction pillar stability assessment, provided theoretical basis for engineering practices.
出处
《中国煤田地质》
2005年第2期29-31,55,共4页
Coal Geology of China
关键词
条带开采
模拟试验
煤柱稳定性
数值分析
太平煤矿
partial extraction
simulating test
pillar stability
numerical analysis
Taiping coalmine
