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隧道建设(中英文) ›› 2015, Vol. 35 ›› Issue (2): 167-173.DOI: 10.3973/j.issn.1672-741X.2015.02.011

• 施工技术 • 上一篇    下一篇

城市地铁风井金属膨胀剂开挖和爆破开挖技术对比

李琳, 王海亮, 周宜, 张祖远   

  1. (山东科技大学矿山灾害预防控制省部共建国家重点实验室培育基地, 山东青岛 266590)
  • 收稿日期:2014-09-16 修回日期:2014-12-10 出版日期:2015-02-20 发布日期:2015-02-11
  • 作者简介:李琳(1987—),男,山东济南人,山东科技大学安全科学与工程专业在读硕士,主要研究方向为隧道爆破设计、施工及安全评价等。
  • 基金资助:

    青岛巿建委科技项目资助(JK2013-4)

Blasting and Explosive Blasting: Case Study on Excavation of a Ventilation Shaft in Urban Area

LI Lin, WANG Hailiang, ZHOU Yi, ZHANG Zuyuan   

  1. (State Key Laboratory of Mining Disaster Prevention and Control Cofounded by Shandong Province and the Ministry of Science and Technology, Shandong University of Science and Technology, Qingdao 266590, Shandong, China)
  • Received:2014-09-16 Revised:2014-12-10 Online:2015-02-20 Published:2015-02-11

摘要:

结合青岛地铁2号线一期工程延安路站1号风井开挖工程,为了减小振动对城市地铁周边建筑物及市政建设管道等的影响,对金属膨胀剂破岩开挖、爆破开挖进行振动数据分析。现场实践结果表明,金属膨胀剂破岩施工较爆破施工容易控制振速,但金属膨胀剂破岩施工的材料成本约为爆破施工的3.4倍,在以后的施工中可以根据不同的环境和施工要求选择适宜的施工方法。

关键词: 地铁风井, 埋深, 金属膨胀剂, 爆破开挖

Abstract:

In this paper, comparison and contrast is made between the vibration caused by metal expansive agent blasting and that caused by explosive blasting, so as to minimize the influence of the excavation of No. 1 ventilation shaft of Yan’an Road Station of Phase 1 of No. 2 Line of Qingdao Metro on the surrounding buildings and municipal utility lines. The practice shows that, compared to the vibration caused by explosive blasting, the vibration caused by metal expansive agent blasting is easier to be controlled, but the cost of the metal expansive agent blasting is 3.4 times that of the explosive blasting. It is proposed that appropriate blasting methods should be adopted on basis of the specific environment conditions and construction requirements. 

Key words: ventilation shaft, buried depth, metal expansive agent blasting, explosive blasting

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