Main controlling factors of gas occurrence in Yadian Coal Mine
In order to study the gas occurrence law of Yadian Coal Mine,based on the gas geological theory,the control effect of geological structure characteristics,coal seam burial conditions,coal seam surrounding rock characteristics and coal seam thickness of Yadian Coal Mine on gas occurrence is quantitatively studied,while the main control factors of gas occurrence are identified.The results show that:the coal measures strata in the mine suffered from multiple periods of uplift and denu-dation,resulting in the deep gas weathering zone and the low gas content;The geological structure of the mine is simple where the fault is not developed and the geological structure has no obvious control over the gas occurrence;The main con-trolling factors of gas occurrence in the coal seam are burial conditions and coal seam thickness.Better results can be a-chieved using the floor elevation of the coal seam and the thickness of the overlying bedrock to predict the gas content.The research results can provide more scientific and accurate theoretical basis for Yadian Coal Mine to formulate efficient and accurate gas control measures.
gas preventiongas occurrencegeological controlgas contentoccurrence characteristicsmain controlling fac-tors
国家科技期刊平台
NSTL
万方数据
维普
