不稳定厚煤层一次采全高冲击危险性评价与防治

Evaluation and Prevention of Bumping Danger from Full Seam Mining in Unstable Thick Seam

根据济宁三井田五采区煤田地质勘探资料,分析了深部采区不稳定厚煤层一次采全高工作面的潜在冲击危险因素,建立了基于数量化理论的冲击危险性评价模型,提出了冲击危险性判别准则,并在冲击危险性量化分析的基础上,构建了行之有效的冲击地压预测与防治体系,可为类似地质条件下煤层的安全开采提供借鉴。

According to the coalfield geological exploration information of No. 5 mining block of Jining No. 3 Minefield, the paper analyzed the potential bumping danger of the full seam mining in the unstable thick seam at the deep mining block. An evaluation model on the bumping danger was established based on the quantitative theory. An identification criterion of the bumping danger was provided. Based on the quantitative analysis of the bumping danger, a pressure bumping prediction and prevention system was effectively established and could provide the references to the safety mining in the seam under the similar geological conditions.