基于示踪气体的综放开采采空区漏风监测

Air Leakage Monitoring of Goaf in Fully Mechanized Top Coal Caving Mining Based on Tracer Gas

为实现综放开采工作面采空区防灭火的情况,提出采用示踪气体监测采空区漏风并根据现场监测结果采用数值模拟技术确定采空区漏风深度。依据31506综放工作面现场实际情况,设计示踪气体监测布置方案,最终确定采空区漏风速度为0.04 m/s、0.20 m/s,并采用数值模拟技术确定采空区漏风深度为13.55 m、3.59 m。

In order to realize the situation of fire prevention and extinguishing in the goaf of fully mechanized top coal caving mining face,it is proposed to monitor the air leakage in the goaf with tracer gas,and determine the air leakage depth in the goaf with numerical simulation technology according to the field monitoring results.According to the actual situation of 31506 fully mechanized top coal caving face,the layout scheme of tracer gas monitoring is designed,and the air leakage velocity in goaf is finally determined to be 0.04 m/s、0.20 m/s.Numerical simulation technology is used to determine the air leakage depth in goaf,Which is 13.55 m,3.59 m.