随着新建铁路瓦斯隧道的增多,隧道开挖时穿越突出煤层的可能性也将随之增加,在家竹箐隧道施工中首次运用了煤炭部门所采用的瓦斯预测技术,成功地预测了家竹箐隧道有突出危险的煤层,并运用防突效果检验技术,顺利地揭开石门,安全地通过了煤系地层,为今后修建有煤与瓦斯突出的铁路隧道积累了宝贵经验。 With the increase of new railway gas tunnels, the possibility of crossing the outburst coal seams during tunneling will also increase. For the first time, the gas forecasting technology adopted by the coal sector has been used in the construction of Jiajiangyan tunnels. The tunnel has prominent dangerous coal seam, and using the test technology of anti-outage effect, successfully uncover Shihmen and pass the coal strata safely, which has accumulated valuable experience for the future construction of railway tunnel with coal and gas outburst.