Open AccessCase analysis of in-situ stress coal and gas outburst and prevention countermeasures
Author(s) -
Zhonghua Wang
Publication year - 2021
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/768/1/012021
Subject(s) - coal mining , drilling , hydraulic fracturing , mining engineering , coal , rock blasting , roof , petroleum engineering , geology , environmental science , engineering , civil engineering , waste management , mechanical engineering
The coal and gas dynamic disasters in Fengcheng mining area are serious. There are currently 6 pairs of coal and gas outburst mines. In view of the increase in the proportion of in-situ stress-oriented outbursts in the mining area as the mining depth increases, the establishment of classified disaster control measures is proposed. Stereo gas drainage system, and proposed to explore the use of deep hole pre-splitting blasting, roof strike long drilling, hydraulic reaming, hydraulic fracturing and other new technical measures. It is of great significance to safe and efficient production in mining areas.