采煤是以掘进为基础和前提,掘进服务于采煤。煤矿井下的开采中需要运用到很多掘进技术,其中运用最多的就是锚杆支护和联合支护,这两种技术可以为采煤过程中提供更多的安全保障。由于采煤是一个非常危险的事情,我国的煤矿就经常会发生安全事故,因此,在采煤的过程中就更要注意安全生产。本文分析煤矿井下掘进技术的锚杆支护技术和联合支护技术的推广和应用。 Coal mining is based on the premise of boring and tunneling services in mining. Coal mining needs to use a lot of mining technology, which is the most widely used bolt support and joint support, these two technologies can provide more security for the coal mining process. Since coal mining is a very dangerous thing, accidents in coal mines in our country often occur. Therefore, more attention should be paid to safety in coal mining. This paper analyzes the promotion and application of the bolting technology and the united supporting technology for coal mine tunneling technology.