Research Article

Study on the Parameter Equation of Coal and Gas Outburst Hole

Table 1

Some gas accidents in YGC.

TimeCoal mine with accidentSeverityDeath tollType of accidentTimeCoal mine with accidentSeverityDeath tollType of accident

2010.1.26Yushe coal mine (Guizhou)Larger accident5CGO2016.5.3Shaba coal mine (Yunnan)Larger accident6Gas explosion
2010.4.5Huachu coal mine (Guizhou)Larger accident5CGO2017.2.27Dahebian coal mine (Guizhou)Larger accident9Gas explosion
2011.8.4Guohekou coal mine (Guizhou)Major accident10Gas explosion2018.8.6Zimujia coal mine (Guizhou)Major accident13CGO
2011.3.21Gold and silver mine (Guizhou)Major accident19Gas explosion2018.10.18Huanyuan coal mine (Sichuan)Ordinary accident2CGO
2012.11.24Xiangshui coal mine (Guizhou)Major accident23CGO2018.10.25Eagle rock well (Sichuan)Larger accident4Gas accident
2013.1.18Jinjia coal mine (Guizhou)Major accident13CGO2019.4.3Zaowei coal mine (Yunnan)Ordinary accident2Gas explosion
2013.3.12Machang coal mine (Guizhou)Major accident25CGO2019.4.25Sanjin coal mine (Yunnan)Larger accident4CGO
2013.11.2Dahaizi coal mine (Yunnan)Ordinary accident3Gas explosion2019.6.51# mine of Tianhong mining salt (Chongqing)Ordinary accident1CGO
2013.12.13Bailongshan coal mine 1# (Yunnan)Larger accident9CGO2019.7.28Houxin coal mine (Sichuan)Larger accident3Gas explosion
2014.4.18Wantian coal mine (Guizhou)Larger accident7CGO2019.7.29Longwo (Guizhou)Larger accident4CGO
2014.4.21Lateritic coal mine (Yunnan)Major accident14Gas explosion2019.7.31Dashu coal mine (Guizhou)Larger accident7Gas explosion
2014.5.21Caoba coal mine (Yunnan)Larger accident5Gas explosion2019.9.22Goutou coal mine (Yunnan)Ordinary accident1Gas explosion
2014.5.25Yushe coal mine (Guizhou)Larger accident8CGO2019.10.19Guanyinshan coal mine (Yunnan)Ordinary accident2CGO
2014.6.11Xinhua coal mine (Guizhou)Major accident10CGO2019.11.25Sanjia coal min (Guizhou)Larger accident2CGO
2014.11.27Songlin coal mine (Guizhou)Major accident11Gas explosion2019.12.16Guanglong coal min (Guizhou)Major accident16CGO

Ordinary accident <3, 3≤ larger accident <10, 10≤ major accident <30, 30≤ especially major accident.