四、井巷快速光爆试验与应用实例 在井巷掘进中推广应用光面爆破技术,是提高工程质量,加快施工进度的一项重要措施。近几年来,在国内冶金,煤炭、铁道,建工,军工和石油化工系统的不少单位,由于领导重视,认真实行“三结合”,坚持严细态度,根据岩石,机具和材料等具体条件,积极开展光爆试验研究,已在井巷快速施工中逐步推广这一新技术,并创造了不少简单易行的办法,积累了一些成熟的经验,取得了显著进展。有关单位的实践表明,光爆技术不仅可用于普通平巷,斜井和立井的快速施工,对于大断面井巷、峒室、巷道交岔 Fourth, the rapid photobleaching test and application examples In the tunneling in the promotion and application of smooth blasting technology, is to improve the quality of the project, speed up the progress of construction is an important measure. In recent years, many units in the domestic metallurgy, coal, railway, construction, military and petrochemical systems, due to the leadership attention, seriously implement the “three combinations”, adhere to the strict attitude, according to rock, machinery and materials and other specific conditions , Actively carry out light burst test research, has been in the rapid laneway construction and gradually promote the new technology, and created a lot of simple and easy way, has accumulated some mature experience and made remarkable progress. The practice of the relevant units shows that the light explosion technology can be used not only for the rapid construction of normal lanes, inclined shafts and vertical shafts, but also for the cross-section of shaftways,