›› 2005, Vol. 26 ›› Issue (12): 1926-1930.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Numerical simulation on effects of radial water-decoupling coefficient in engineering blast

WANG Zhi-liang, LI Yong-chi   

  1. Department of Modern Mechanics and Mechanical Engineering, University of Science and Technology of China, Hefei 230027, China
  • Received:2004-10-08 Online:2005-12-10 Published:2014-01-12

PDF (PC)

1492

Abstract: In practical engineering blast, the water decoupling hole is very common. The decoupling coefficient is one of the key factors influencing explosion effects, and its different values will induce different propagation mechanisms of stress-waves and variable destructive ranges in the surrounding mediums. Previous studies mainly focus on analytical solutions and model tests. This paper uses the large-scale nonlinear dynamic analysis software, LS-DYNA, and with famous concrete damage constitutive model Johnson-Holmquist-Concrete to numerically simulate the wave-induced damage properties of concrete by adopting different radial decoupling coefficients Kd for water decoupling blast in infinite concrete medium. The relationships between the damage distribution zones around blasting hole and the pressure, acceleration, velocity of point on hole-wall with the different values of Kd are analyzed. The results obtained in this paper may be useful in engineering blast.

Key words: concrete medium, engineering blast, decoupling 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.
[1] JIN Jun-chao, SHE Cheng-xue, SHANG Peng-yang. A nonlinear creep model of rock based on the strain softening index [J]. Rock and Soil Mechanics, 2019, 40(6): 2239-2246.
[2] ZHANG Cong, LIANG Jing-wei, YANG Jun-sheng, CAO Lei, XIE Yi-peng, ZHANG Gui-jin, . Research on the diffusion mechanism and application of pulsate grouting in embankment and dam [J]. Rock and Soil Mechanics, 2019, 40(4): 1507-1514.
[3] YAN Jian, HE Chuan, WANG Bo, MENG Wei, . Influence of high geotemperature on rockburst occurrence in tunnel [J]. Rock and Soil Mechanics, 2019, 40(4): 1543-1550.
[4] LI Shi-jun, MA Chang-hui, LIU Ying-ming, HAN Yu-zhen, ZHANG Bin, ZHANG Ga, . Centrifuge model tests and numerical simulation on progressive failure behavior of slope above a mine-out area [J]. Rock and Soil Mechanics, 2019, 40(4): 1577-1583.
[5] LANG Ying-xian, LIANG Zheng-zhao, DUAN Dong, CAO Zhi-lin, . Three-dimensional parallel numerical simulation of porous rocks based on CT technology and digital image processing [J]. Rock and Soil Mechanics, 2019, 40(3): 1204-1212.
[6] YANG Ai-wu, PAN Ya-xuan, CAO Yu, SHANG Ying-jie, WU Ke-long, . Laboratory experiment and numerical simulation of soft dredger fill with low vacuum pre-compression [J]. Rock and Soil Mechanics, 2019, 40(2): 539-548.
[7] WANG Hua-bin, LI Jian-mei, JIN Yi-xuan, ZHOU Bo, ZHOU Yu, . The numerical methods for two key problems in rainfall-induced slope failure [J]. Rock and Soil Mechanics, 2019, 40(2): 777-784.
[8] CHEN Shang-yuan, ZHAO Fei, WANG Hong-jian, YUAN Guang-xiang, GUO Zhi-biao, YANG Jun, . Determination of key parameters of gob-side entry retaining by cutting roof and its application to a deep mine [J]. Rock and Soil Mechanics, 2019, 40(1): 332-342.
[9] ZHENG Jun-jie, LÜ Si-qi, CAO Wen-zhao, JING Dan, . Numerical simulation of composite rigid-flexible pile-supported retaining wall under the action of high-filled expansive soil [J]. Rock and Soil Mechanics, 2019, 40(1): 395-402.
[10] LI Yang, SHE Cheng-xue, ZHU Huan-chun, . Simulation and verification of particle flow of vibration rolling compaction of field rockfill [J]. Rock and Soil Mechanics, 2018, 39(S2): 432-442.
[11] ZHANG Zhi-guo, ZHANG Cheng-ping, MA Bing-bing, GONG Jian-fei, YE Tong. Physical model test and numerical simulation for anchor cable reinforcements of existing tunnel under action of landslide [J]. , 2018, 39(S1): 51-60.
[12] OU Xiao-duo, PAN Xin, HOU Kai-wen, JIANG Jie , LIU Zi-yan，. Electrical shock characteristics of hydraulic fill in reclamation land in Beibu Gulf of Guangxi [J]. , 2018, 39(S1): 348-354.
[13] LIU Jian, ZHAO Guo-yan, LIANG Wei-zhang, WU Hao, PENG FU-hua,. Numerical simulation of uniaxial compressive strength and failure characteristics in nonuniform rock materials [J]. , 2018, 39(S1): 505-512.
[14] LI Zhao-hua, HU Jie, FENG Ji-li, GONG Wen-jun. Numerical simulation of debris flow based on visco-elastoplastic constitutive model [J]. , 2018, 39(S1): 513-520.
[15] ZHU Ning ， ZHOU Yang , LIU Wei, SHI Pei-xin, WU Ben，. Study of silty soil behavior disturbed for installation of diaphragm wall in Suzhou [J]. , 2018, 39(S1): 529-536.
Viewed
Full text


Abstract

Cited
  Shared   
  Discussed   
[1] WEI Li，CHAI Shou-xi，CAI Hong-zhou，WANG Xiao-yan，LI Min3，SHI Qian. Research on tensility of wheat straw for reinforced material[J]. , 2010, 31(1): 128 -132 .
[2] HUANG Qing-xiang, ZHANG Pei, DONG Ai-ju. Mathematical model of “arch beam” of thick sandy soil layer movement in shallow seam[J]. , 2009, 30(9): 2722 -2726 .
[3] SUN De-an，CHEN Bo. Mechanical behavior of remolded overconsolidated Shanghai soft clay and its elastoplastic simulation[J]. , 2010, 31(6): 1739 -1743 .
[4] JING Zhi-dong, LIU Jun-xin. Experimental research on dynamic deformations of semi-rigid structures of subgrade bed-mudstone of red beds[J]. , 2010, 31(7): 2116 -2121 .
[5] LIU Zheng-hong，LIAO Yan-hong，ZHANG Yu-shou. Preliminary study of physico-mechanical properties of Luanda sand[J]. , 2010, 31(S1): 121 -126 .
[6] LEI Jin-bo，CHEN Cong-xin. Research on load transfer mechanism of composite foundation of rigid pile with cap based on hyperbolic model[J]. , 2010, 31(11): 3385 -3391 .
[7] WANG Deng-ke，LIU Jian，YIN Guang-zhi，WEI Li-de. Research on influencing factors of permeability change for outburst-prone coal[J]. , 2010, 31(11): 3469 -3474 .
[8] WANG Jun, CAO Ping, LI Jiang-teng, LIU Ye-ke. Analysis of stability of tunnel-slope with rheological medium under rainfall infiltration[J]. , 2009, 30(7): 2158 -2162 .
[9] ZHANG Yuan, WAN Zhi-jun, KANG Jian-rong, ZHAO Yang-sheng. Analysis of stage characteristics of sandstone permeability under conditions of temperature and triaxial stress[J]. , 2011, 32(3): 677 -683 .
[10] ZHANG Xue-chan , GONG Xiao-nan , YIN Xu-yuan , ZHAO Yu-bo. Monitoring analysis of retaining structures for Jiangnan foundation pit of Qingchun road river-crossing tunnel in Hangzhou[J]. , 2011, 32(S1): 488 -0494 .
Copyright © Rock and Soil Mechanics, All Rights Reserved.
Tel: 027-87198484, 87199252, 87199253, 87198752　E-mail: ytlx@whrsm.ac.cn
Powered by Beijing Magtech Co. Ltd