The cut is major factor to affect tunnelblast. The movement process of rock pieces in cut cavity is a theory base for cut blast mechanism and the parameter design.
掏槽是决定隧道爆破效率的主要因素，掏槽腔内岩石碎块的运动过程是掏槽爆破机理及参数设计的理论基础。
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Simultaneously, the safety of adjacent constructions in the process of tunnelblast excavation based on the monitoring result is analyzed to provide corresponding safety criterion.