我国现有全民所有制矿山8840个,城乡集体所有制矿山11万多个,个体、私营采矿点12万多处,分布在全国2000多个县、市,从事采矿业的人员已达1920多万人。 采矿业是一个特殊行业,矿山生产条件比较差,危险性大,影响矿工安全与健康的因素多,冒顶、片帮、塌方、水灾、瓦斯煤尘爆炸等灾 China now has 8,840 mines owned by the whole people, more than 110,000 mines owned collectively by urban and rural areas, over 120,000 individuals and privately owned mining sites, and more than 1,920,000 people are employed in the mining industry in more than 2000 counties and cities across the country. The mining industry is a special industry with relatively poor production conditions and dangerous conditions. There are many factors that affect the safety and health of miners, such as roof collapse, sheet breakage, landslides, floods and gas and coal dust explosions