ISSN 2096-4498

   CN 44-1745/U

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

  • LI Lin ,
  • WANG Hailiang ,
  • ZHOU Yi ,
  • ZHANG Zuyuan
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  • (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 date: 2014-09-16

  Revised date: 2014-12-10

  Online published: 2015-02-11

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. 

Cite this article

LI Lin , WANG Hailiang , ZHOU Yi , ZHANG Zuyuan . Blasting and Explosive Blasting: Case Study on Excavation of a Ventilation Shaft in Urban Area[J]. Tunnel Construction, 2015 , 35(2) : 167 -173 . DOI: 10.3973/j.issn.1672-741X.2015.02.011

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