Important geological hazards of coal-mine and its prevention measures in China
XIAO He ping (Seismological Bureau of Hunan Province,Changsha\ 410001,China)
In this paper,principal geological hazards including earthquake,landslide,land subsidence and collapse,coal outburst and gas explosion,waterbursting in coal mine are comprehensively analyzed.Study of characteristic,mechanism and endangerment of all kinds of geological hazards in coal\|mine area indicates:(1)These geological hazards of coal\|mine have threatened the daily work and local people,people′s life.(2)The coal\|mine earthquakes are the result of comprehensive action by endogenous\|exogene environmental factors of brittle soft strata,folds,tectonic zone.(3)Formation of geological hazards of land slides,land subsidence and collapse,coal outburst and gas explosion,water\|bursting in coal mine is due to the deterioration of ecological environment and the broken of ecological balance.The chain of geological hazards in coal\|mine and prevention measures are put forward.