王仁涛,王成虎,江英豪,宋凯,周宜

• 1:中国地震局地壳应力研究所地壳动力学重点实验室
• 2:青岛第一市政工程有限公司
• 3:山东科技大学矿山灾害预防控制国家重点实验室培育基地

摘要(Abstract)：

城市浅埋隧道下穿建筑物的爆破施工应加强爆破振动控制。针对青岛地铁3号线太延区间段隧道下穿青岛疗养区供应公司,埋深为7.4 m、围岩IV~V级、地下水丰富等特点,结合先前其他区间段隧道施工经验,对该区段隧道施工进行专项爆破振动控制设计。通过采用大直径中空直眼掏槽和减小单段最大起爆药量,合理布置炮孔间排距、优化爆破网路,对爆破振动速度进行控制。对地上建筑物振动实时监测,爆破振速满足2 cm/s的爆破振速控制标准,振动峰值速度在砖混结构建筑物顶层存在放大效应。此爆破振动控制方案取得了良好的爆破振速控制效果和工程、社会效益,可为类似城市浅埋隧道施工提供参照意义。

关键词(KeyWords)： 浅埋隧道;爆破开挖;振动控制;振动监测

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金重点项目(51038009);国家自然科学基金面上项目(41274100);; 中央级科研院所基本科研业务专项资助项目(ZDJ2012-20)

作者(Author): 王仁涛,王成虎,江英豪,宋凯,周宜

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