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本文结合西汉高速公路秦岭Ⅲ号隧道下行进口进洞施工方案,介绍了破碎岩层进洞及地表加固的施工工艺。
In this paper, combined with the construction project of tunneling downwards into the tunnel of Qinling Ⅲ of the Western Han Expressway, the construction process of rock breaking into the cave and surface reinforcement is introduced.