弱膨胀性围岩隧道开挖支护施工探索

Exploration on excavation support construction of weak swelling surrounding rock tunnel

结合工程实例和现场试验探讨了弱膨胀性围岩隧道合理的支护参数,给出了隧道开挖及支护方法,并提出了施工中应注意的要点,以确保隧道施工顺利进行。

Combining with the engineering example and in-situ test, the paper explores the rational support parameter of weak swelling surround- ing rock tunnel, shows the fatigue tunnel excavation and support method, and points out matters needing attention in construction, with a view to ensure the smooth tunnel construction.