综放无煤柱复合采场漏风示踪分析

Tracer Analysis of Air Leakage in Comprehensive Mechanized Sublevel Caving Mining Non-pillar Compound Mining Field

针对综放无煤柱复合采场漏风形式的复杂性，在山东兖州东滩矿对综放工作面邻近通风系统进行压能测试，初步确定采场漏风源汇；用瞬态法释放ＳＦ_6示踪气体，通过测试分析确定综放复合采场各漏风点的漏风风速和采场漏风量及其分布情况。

In view of the complexity of air leakage form in comprehensive mechanized sublevel caving mining non-pillar compound mining field, a pressure energy testing to ventilation system adjacent to fully-mechanized sublevel caving mining working face is proceeded in Dongtan mine of Yanzhou in Shandong province, source and sink of air leakage are determined primarily, SF6 gas is released by using transient state method, the air speed of air leakage of every point and air leakage quantity in mining field and its distribution state can be determined by test and analysis.