Gob Air Leakage Measurement of Working Face with Y-shaped Ventilation in Panyi East Mine
MEI Fushu
DAI Guanglong
QIN Ruxiang
ZHOU Yanan
CHEN Meiyong
Abstract：Site measurements of the gob air leakage were carried out with SF6 tracer gas in 1252 ( 1 ) fully mechanized coal face in Panyi East Mine of Huannan Mining Group in order to reveal the gob air leakage law in the working face with Y-shaped ventilation. It was found in research that the gob air leakage range of this fully mechanized coal face was wider, the air leakage existed in the whole roadway driving along the gob, the air leakage between wind speed and face position was a negative exponential relationship, and the area 30-150 m away from the face was the air leakage transition one of this gob.
Keywords：Y-type ventilationgob air leakagetracing techniqueSF6 tracer gas
Publication Date：2014-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：3( 70-72 )