›› 2007, Vol. 28 ›› Issue (S1): 354-358.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Numerical simulation analysis of rock anchor beam blasting considering damage effect

ZHANG Cheng-liang1, LI Xin-ping2, DAI Yi-fei2   

  1. 1. School of Territorial Resources Engineering, Kunming University of Science and Technology, Kunming 650093, China; 2. Hubei Key Laboratory of Road-Bridge and Structure Engineering, Wuhan University of Technology, Wuhan 430070, China
  • Received:2007-05-27 Online:2007-10-25 Published:2014-03-28

PDF (PC)

672

Abstract: Smooth blasting is generally used to excavate rock anchor beam at the underground power station, its aim is to better quality and smaller crushed region. However, the blasting of the main hole damages the smooth layer to a certain extent to reduce the mechanical parameters of rock mass. The more powder is charged each hole and rock mass is over excavation or generate lots of cracks without considering this effect of damage. The 2D dimension elastic-plastic model of rock mass is adopted and the smooth blasting procedures with and without this damage are simulated in the dynamic finite program. According to the results of comparison of maximum effective stresses of different distance of 2 kinds of models, when the effect of this damage is considered, the interval of holes and the burden can be widened under the same condition. The model considering damage is proved by in-site blasting experiment well.

Key words: smooth blasting, damage, numerical analysis, blasting parameters

CLC Number: 

  • TU 94
  • 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] WANG Jie, SONG Wei-dong, TAN Yu-ye, FU Jian-xin, CAO Shuai, . Damage constitutive model and strength criterion of horizontal stratified cemented backfill [J]. Rock and Soil Mechanics, 2019, 40(5): 1731-1739.
[2] ZHANG Wei, QU Zhan-qing, GUO Tian-kui, SUN Jiang. Numerical simulation of hydraulic fracturing in hot dry rocks under the influence of thermal stress [J]. Rock and Soil Mechanics, 2019, 40(5): 2001-2008.
[3] WANG Yu, AI Qian, LI Jian-lin, DENG Hua-feng, . Damage characteristics of sandstone under different influence factors and its unloading failure meso-morphology properties [J]. Rock and Soil Mechanics, 2019, 40(4): 1341-1350.
[4] LI Xiao-zhao, QI Cheng-zhi, SHAO Zhu-shan, QU Xiao-lei, . Micromechanics-based model study of shear properties of brittle rocks [J]. Rock and Soil Mechanics, 2019, 40(4): 1358-1367.
[5] ZHU Sai-nan, YIN Yue-ping, LI Bin, . Shear creep behavior of soft interlayer in Permian carbonaceous shale [J]. Rock and Soil Mechanics, 2019, 40(4): 1377-1386.
[6] GAO Feng, XIONG Xin, ZHOU Ke-ping, LI Jie-lin, SHI Wen-chao, . Strength deterioration model of saturated sandstone under freeze-thaw cycles [J]. Rock and Soil Mechanics, 2019, 40(3): 926-932.
[7] LI Ning, YANG Min, LI Guo-feng. Revisiting the application of finite element method in geotechnical engineering [J]. Rock and Soil Mechanics, 2019, 40(3): 1140-1148.
[8] ZHENG Li-ming, ZHANG Yang-yang, LI Zi-feng, MA Ping-hua, YANG Xin-jun, . Analysis of seepage changes during poroelastic consolidation process with porosity and pressure variation under low-frequency vibration [J]. Rock and Soil Mechanics, 2019, 40(3): 1158-1168.
[9] YU Jin, ZHANG Xin, CAI Yan-yan, LIU Shi-yu, TU Bing-xiong, FU Guo-feng, . Meso-damage and mechanical properties degradation of sandstone under combined effect of water chemical corrosion and freeze-thaw cycles [J]. Rock and Soil Mechanics, 2019, 40(2): 455-464.
[10] LI Cheng-wu, FU Shuai, XIE Bei-jing, LI Guang-yao, WAN Tian-yu. Characteristics and generation mechanism of low-frequency magnetic field generated during the damage of coal under static load [J]. Rock and Soil Mechanics, 2019, 40(2): 481-488.
[11] KANG Yan-fei, CHEN Jie, JIANG De-yi, LIU Wei, FAN Jin-yang, WU Fei, JIANG Chang-qi, . Damage self-healing property of salt rock after brine immersion under different temperatures [J]. Rock and Soil Mechanics, 2019, 40(2): 601-609.
[12] ZHENG Guang-hui, XU Jin-yu, WANG Peng, FANG Xin-yu, WANG Pei-xi, WEN Ming, . Physical characteristics and degradation model of stratified sandstone under freeze-thaw cycling [J]. Rock and Soil Mechanics, 2019, 40(2): 632-641.
[13] KANG Yan-fei, CHEN Jie, JIANG De-yi, LIU Wei, FAN Jin-yang. Summary on damage self-healing property of rock salt [J]. Rock and Soil Mechanics, 2019, 40(1): 55-69.
[14] SONG Hong-qiang, ZUO Jian-ping, CHEN Yan, LI Li-yun, HONG Zi-jie, . Revised energy drop coefficient based on energy characteristics in whole process of rock failure [J]. Rock and Soil Mechanics, 2019, 40(1): 91-98.
[15] ZENG Yin, LIU Jian-feng, ZHOU Zhi-wei, WU Chi, LI Zhi-cheng, . Creep acoustic emission and damage evolution of salt rock under uniaxial compression [J]. Rock and Soil Mechanics, 2019, 40(1): 207-215.
Viewed
Full text


Abstract

Cited
  Shared   
  Discussed   
[1] WU Qiong, TANG Hui-ming, WANG Liang-qing, LIN Zhi-hong. Analytic solutions for phreatic line in reservoir slope with inclined impervious bed under rainfall and reservoir water level fluctuation[J]. , 2009, 30(10): 3025 -3031 .
[2] WU Chang-yu, ZHANG Wei, LI Si-shen, ZHU Guo-sheng. Research on mechanical clogging mechanism of releaf well and its control method[J]. , 2009, 30(10): 3181 -3187 .
[3] HE Fa-guo, CHEN Wen-wu, HAN Wen-feng, ZHANG Jing-ke. Correlation of microstructure indices and performance of sand solidified with polymer material SH[J]. , 2009, 30(12): 3803 -3807 .
[4] SHANG Shou-ping, SUI Xiao-xi, ZHOU Zhi-jin, LIU Fang-cheng, XIONG Wei. Study of dynamic shear modulus of granulated rubber-sand mixture[J]. , 2010, 31(2): 377 -381 .
[5] ZHONG Guo-sheng, XIONG Zheng-ming. Safety assessment of structure by blasting seism based on wavelet packet energy spectra[J]. , 2010, 31(5): 1522 -1528 .
[6] XIAO Zhong, WANG Yuan-zhan, JI Chun-ning, HUANG Tai-kun, SHAN Xu. Stability analysis of large cylindrical structure for strengthening soft foundation under wave load[J]. , 2010, 31(8): 2648 -2654 .
[7] LI Feng, WANG Xiao-rui, LUO Xiao-hui, GUO Yuan-cheng. Assessment methods of chance constrained on bottom stability of foundation pit[J]. , 2010, 31(12): 3867 -3874 .
[8] LI Jian-hua, XU Bin, XU Man-qing, LIU You-ping. Vibration isolation using pile rows in a layered poroelastic half-space against vibration due to harmonic loads[J]. , 2010, 31(S2): 12 -18 .
[9] TIAN Qi-qiang，HOU Xing-min，WANG Zi-fa. A new method of subsoil damping ratio identification based on free vibration of a massive concrete foundation[J]. , 2011, 32(1): 211 -216 .
[10] CHAI Bo, YIN Kun-long, CHEN Li-xia, LI Yuan-yao. Analysis of slope deformation under control of rock mass structure[J]. , 2009, 30(2): 521 -525 .
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