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文章介绍了山东莱麻高速公路开挖中，针对工程要求及地质地形特点，如何选择应用点式类条形药包大空腔比多种形式的用室爆破施工方法．
In this article, we introduce the construction method of chamber blasting in many ways of applying the large cavity of point-type bar-shaped kits in the excavation of Shandong-Ma highway, according to the engineering requirements and the characteristics of geological topography.