The causal mechanism of gas-coal cross-mining accidents
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摘要: 针对我国沉积盆地中煤炭和天然气普遍存在矿权交叉现象，煤炭和天然气同时开采、相互影响严重，两者的协同开采问题以及事故隐患亟待解决。考虑天然气与煤炭开采在相同时空范围内，相互制约影响环节较多，本文基于能量异常释放模型和STAMP等事故致因理论提出了能量控制失效模型，以解释信息转移循环特征; 基于对天然气和煤炭的开采工艺过程，建立了气-煤交叉开采活动的能源单元、屏障单元、承灾体之间的交互关系，分析了能量转移及安全屏障相互作用的特征，研判了9种意外释放情景，提出了气-煤交叉开采关键控制行为识别和确保关键控制行为有效的技术措施。研究结果对预防气-煤交叉开采事故提供参考。Abstract: The problem of overlapping mineral rights of coal and gas is common in the Ordos Basin of China.The interaction will occur when coal and gas are mined simultaneously, so it is necessary to solve the synergistic mining problem to eliminate the accident potential.Considering that there are many constraints in the simultaneous exploitation of gas and coal, this paper proposed an energy control failure model by energy abnormal release and STAMP.This model explains the applicability of information transfer cycle and the energy control failure model.Then, through the analysis of gas-coal mining process, this paper established the interaction between the energy unit, barrier unit, and disaster-bearing body, and analyzed the characteristics of energy transfer and safety barrier interaction.Finally, by analyzing 9 kinds of accidental release scenarios, this study proposed the identification behavior methods and control measures to prevent gas-coal cross-mining accidents.
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图 5 气-煤开采中能量单元与屏障单元共同作用机理
Figure 5. Mechanism of the joint action of the energy unit and the barrier unit in the mining process of the gas-coal system
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