摘要
本文对双筋条的结构、施工方法和支护机理作了详细的介绍。通过分析研究认为，双筋条支护适合于节理裂隙发育岩体中的巷道以及软弱岩体中的巷道二采用双筋条加喷射混凝土支护对这类岩体具有良好的效果，这一点在西石门铁矿近两年来的生产实际中得到了充分的证实。
In this paper, author introduces the construction, operating method and mechanism of thedoube-steel-bars support. It is believed that the double-steel-bars support is suitable for excavationsin rocks with joint and soft-weak rocks. A lot of practice in which double-steel-bars havebeen used in production at Xishimen Iron Mine for almost two years confirmed that double-steelbarsand shotcrete can efficiently support the excavations in rocks with joint and soft-weak rocks.
出处
《中国矿业》
1994年第2期38-41,共4页
China Mining Magazine
关键词
双筋条
锚喷支护
岩石巷道
Doubel-steel-bars,Joint,Soft-weak rock,Key block
