Design method, technical and constructional fea-tures of large-scale chamber strengthen loose blasting at W& Cu Chamber Corporation new site in Qingtian COunt,Zhe-jiang Province were introduced.

• 主要介绍浙江省青田县钨钼化工总公司新厂址山体硐室加强松动大爆破的设计方法、技术特征和施工特点。