This paper summarily introduces the achievement and development of underground engineering chambers blasting excavation technology, and describes excavation measures and construction order of underground plant chambers.

• 综合介绍了水利水电地下工程洞室群开挖爆破技术取得的成就和发展水平,阐述了地下厂房洞室群的开挖方法和施工程序,以及光面爆破、裂爆破在厂房洞室、车梁岩台、井和在交叉洞室开挖中的应用。