School of Resources & Geosciences,China University of Mining & Technology

科学评价煤层底板突水风险对矿井安全生产具有重要意义。通过Lawrence风险公式推导出能够体现底板突水多种因素耦合作用关系的突水系数修正模型,并以新安煤矿为例,运用多元线性回归方法拟合适用于该矿的突水系数修正模型。应用该模型对新安煤矿二1煤底板奥灰突水风险进行评价,同时应用突水系数模型进行对比评价。结果表明:突水系数修正模型评价结果更为可靠。实现了突水系数模型的探讨性修正,具有一定的理论与实践意义。

Scientific evaluation of the risk of gushing water from coal seam floor is of great significance to mine safety production. Based on Lawrence risk formula, a modified model of water bursting coefficient which can reflect the coupling relationship of multiple factors of floor gushing water is derived mathematically in this paper. Taking Xin’an Coal Mine as an example, the modified model of water bursting coefficient suitable for the mine was fitted by using multiple linear regression. The model was applied to evaluate the risk of Ordovician limestone gushing water from the floor of No. 21 coal seam in Xin’an Coal Mine, and the water bursting coefficient model was used for comparative evaluation. The results show that the modified model of water bursting coefficient is more reliable. The research has realized the exploratory modification of the water bursting coefficient model, which has certain theoretical and practical significance.

国家重点研发计划项目(2019YFC1805400)

朱宗奎. 基于 Lawrence 风险公式的突水系数修正模型研究[J]. 矿业安全与环保,2023,50(3):89-94.

ZHU Zongkui. Study on modified model of water bursting coefficient based on Lawrence risk formula[J]. Mining Safety & Environmental Protection,2023,50(3):89-94.