为解决因初期支护格栅拱架限制周边眼钻凿精度而引起的隧道周边超欠挖问题，以青岛地铁1号线瓦屋庄站至贵州路站区间工程为例，介绍“长、短眼”控制爆破技术，提出“长、短眼”布置方案，并采用质点峰值振动法和激光隧道断面检测仪分别对“长、短眼”爆破技术产生的围岩损伤范围和隧道超欠挖量进行分析和监测。结果表明： 1）采用“长、短眼”控制爆破技术，Ⅳ级围岩段隧道周边超欠挖控制在150 mm以内，且理论计算每米进尺回填混凝土节省成本7 182元，可提高工程经济效益； 2）长短眼爆破产生的损伤范围为0.29~0.33 m，隧道拱顶沉降、净空收敛量均控制在10 mm以内，施工效果好。

In order to solve the problem of overbreak/underbreak of surrounding rock of Wawuzhuang StationGuizhoulu Station Section on Qingdao Metro Line No. 1 induced by drilling accuracy of surrounding blasting holes enslaved to grid steel frame of primary support, the controlled blasting technology of long and short blasting holes is introduced; and then the layout scheme of long and short blasting holes is proposed. Meanwhile, the damage zone of surrounding rock and tunnel overbreak/underbreak amount induced by blasting are analyzed and monitored by particle peak vibration method and tunnel crosssection laser detector, respectively. The results show that: (1) The tunnel overbreak/underbreak amount in Grade Ⅳ surrounding rock section can be controlled within 150 mm; and the shotcrete cost per meter can be decreased by RMB 7 182 by adopting long and short blasting holes. (2) The damage zone of surrounding rock induced by controlled blasting technology of long and short holes ranges from 0.29 m to 0.33 m; and the tunnel crown top settlement and clearance convergence are both less than 10 mm. Good economic benefit and construction effect have been achieved.