›› 2008, Vol. 29 ›› Issue (6): 1540-1544.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Numerical simulation of influence of concave landform on blasting vibration wave propagation

TANG Hai1,2, LI Hai-bo2, ZHOU Qing-chun2, LI Jun-ru2, XIA Xiang2, ZHANG Lei-qi3   

  1. 1. School of Energy and Safety Engineering, Hunan University of Science and Technology, Xiangtan 411201；2.China State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, China; 3. Nanyang Reconnaissance and Design Institute, Nanyang 473063, China
  • Received:2007-10-11 Online:2008-06-10 Published:2013-07-15

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Abstract: Based on blasting vibration monitoring for the second phrase for Ling-ao Nuclear Power Station in Guangdong Province，the wave propagation characteristics under blasting in concave landforms are simulated with UDEC. It is founded that the numerical simulation results agree well with that by site monitoring. It is reported that the peak particle velocity (PPV) of blasting clearly decreased in concave landforms and the decreasing rate of PPV in horizontal direction is large than that in vertical direction. It is also reported that the attenuation coefficient increased with increment of depth and width of concave landforms; and the rising rates of attenuation coefficient with the width is less than that of depth. It is further suggested that the attenuation coefficient increases with increment of the charge weight and decreases with increment of explosive distance.

Key words: concave landforms, vibration wave of blasting, attenuation coefficient, numerical simulation

CLC Number: 

  • O 382
  • Please send e-mail to pingzhou3@126.com if you would like to read full paper in English for free. Parts of our published papers have English translations.
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