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Safe and efficient mining technology for full-mechanized caving face of deep mine with capacity of ten million tons

机译：千万吨深井综放工作面安全高效开采技术

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Based on a highly intensive mining mode of “one mine, one coalface, ten million tons”, safe and efficient mining technology for full-mechanized caving face of deep mine with capacity of ten million tons is proposed to deal with technical problems such as high ground pressure, high ground temperature, high water pressure and easy spontaneous combustion of coal seam in Longgu coal mine. The surrounding rock control technology was researched to effectively control the high ground pressure. The treatment and utilization technology for high temperature and heat hazard was initiated to lower the average temperature in main workplaces by 8 L. The treatment and utilization technology of high-pressure massive water gushing was adopted to ensure safe mining under the condition of 8 MPa water pressure in deep mine. A precautionary and preventive technology for spontaneous combustion of coal seam of “coal body inhibition + air-leakage control + local inerting” is proposed to stop spontaneous firing of coalface in high ground temperature. The research results have effectively solved the technical difficulties and have realized safe and efficient production for deep mine with capacity of ten million tons.
机译：基于“一矿一煤一千万吨”的高强度开采方式，提出了一种安全，高效的千万吨深井综放工作面开采技术，以解决技术难题。龙谷煤矿地压高，地温高，水压高，煤层易自燃。研究了围岩控制技术，以有效地控制高地压。开展高温热害处理利用技术，使主要工作场所平均温度降低8升。采用高压大涌水处理利用技术，确保在8 MPa水压条件下安全开采。深井雷的压力。一种“煤体抑制+漏气控制+局部惰化”的煤层自燃的预防和预防技术。建议在高温下停止煤层的自燃。研究成果有效解决了技术难题，实现了千万吨深矿的安全高效生产。

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