Schatzel Steven J, Krog Robert B, Mazzella Andrew, Hollerich Cynthia, Rubinstein Elaine
NIOSH, Pittsburgh, PA, USA.
West Virginia University, Morgantown, WV, USA.
Int J Min Reclam Environ. 2015 Apr 7;2015(2):165-9. doi: 10.1080/17480930.2015.1026665.
The National Institute for Occupational Safety and Health conducted a study on leakage rates through underground coal mine seals. Leakage rates of coal bed gas into active workings have not been well established. New seal construction standards have exacerbated the knowledge gap in our understanding of how well these seals isolate active workings near a seal line. At a western US underground coal mine, we determined seal leakage rates ranged from about 0 to 0.036 m/s for seven 340 kPa seals. The seal leakage rate varied in essentially a linear manner with variations in head pressure at the mine seals.
美国国家职业安全与健康研究所对地下煤矿密闭墙的泄漏率进行了一项研究。煤层气向采场的泄漏率尚未得到很好的确立。新的密闭墙建设标准加剧了我们在理解这些密闭墙对密闭线附近采场的隔离效果方面的知识差距。在美国西部的一个地下煤矿，我们确定了七个340千帕的密闭墙的泄漏率范围约为0至0.036米/秒。密闭墙的泄漏率随矿井密闭墙处的水头压力变化基本呈线性变化。
