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作者:

Liu, Dong (Liu, Dong.) | Gao, Wenxue (Gao, Wenxue.) (学者:高文学) | Zhou, Wenxu (Zhou, Wenxu.) | Zhang, Yuanbo (Zhang, Yuanbo.)

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EI Scopus

摘要:

Basing on Huolangyu tunnel, the authors use the finite software MADIS-GTS to analyze stress field, displacement field, and plastic zone distribution of the surrounding rock under tunnel entrance excavation. They also study stress distribution rules of unsymmetrical pressure section with backfilled soil. After a comparative analysis of the monitoring data, the authors define the key controlled zones of rock unsymmetrical deformation and stress concentration, they advise some effective measures to avoid partial tunnel destruction. Through monitoring the blasting vibration on key controlled zones, the authors analyze the correlation between blasting vibration effect and blasting condition, they put forward the blasting vibration control technology, such as stress improvement of surrounding rock, the multi-stage small wedge cutting holes, reasonable holes design, information-based construction, optimized blasting parameter. The methods will ensure the excavation safety in shallow buried tunnel under unsymmetrical pressure. © 2013 Taylor & Francis Group.

关键词:

Blasting Design Rocks Steel beams and girders Stress concentration Vibration analysis Vibration control

作者机构:

  • [ 1 ] [Liu, Dong]Beijing University of Technology, Beijing, China
  • [ 2 ] [Liu, Dong]Beijing Road Engineering Quality Supervision Station, Beijing, China
  • [ 3 ] [Gao, Wenxue]Key Laboratory of City and Engineering Safety and Disaster Reduction in the Ministry of Education, Beijing University of Technology, Beijing, China
  • [ 4 ] [Zhou, Wenxu]Highway Planning and Design Institute of China, Communications Construction Company, Beijing, China
  • [ 5 ] [Zhang, Yuanbo]Beijing University of Technology, Beijing, China

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年份: 2013

页码: 895-898

语种: 英文

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