浅谈隧道支护手段
Shangqing（2013）
Abstract
隧道是围岩与支护结构的综合体.隧道开挖破坏了地层的初始应力平衡,产生围岩应力释放和洞室变形,过量的变形将导致围岩松动甚至坍塌.所以隧道完成以后必须进行初期支护,常见的初期支护有喷锚支护,锚杆,喷射混凝土,钢拱架等支护手段.
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