›› 2007, Vol. 28 ›› Issue (8): 1615-1620.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Time effect damage model of rock mass and its application to blasting engineering

WANG Zhi-liang1, ZHENG Tian-zhong2, LI Yong-chi1   

  1. 1. Department of Modern Mechanics, University of Science and Technology of China, Hefei 230027, China; 2. Seawall Management Service, Wenzhou Water Resources Bureau, Wenzhou 325000, China
  • Received:2005-11-26 Online:2007-08-10 Published:2013-10-15

Abstract: In order to achieve intelligent blasting and reduce the blast-induced adverse influences, the prediction of rock damage and its distribution scope through numerical simulation is of importance in engineering. Thereinto, the reasonable damage constitutive model for rock is crucial. By assuming that the rock mass is an isotropic and continuous material with pre-existing random initial microcracks, an available rock tensile damage evolution equation considering time effect is coupled with the bi-linear elastoplastic constitutive model. Then they are succinctly incorporated into the transient dynamic code, LS-DYNA, via its user defined subroutine. In addition, the erosion algorithm in LS-DYNA is employed. The tensile damage and blasting crater near the free-surface of semi-infinite rock mass is numerically simulated; and the numerical results are satisfactory. This method presented herein has some reference value in rock blasting.

Key words: blasting, micro-crack, time effect damage, erosion algorithm, blasting crater, numerical simulation

CLC Number: 

  • TB 41
  • 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] JIANG Li-Chun, LUO En-Min, SHEN Bin-Bin, . A dynamic response of blasting to stereoscopic goaf group based on the multi-degree of freedom model method [J]. Rock and Soil Mechanics, 2019, 40(6): 2407-2415.
[3] 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.
[4] 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.
[5] 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.
[6] DENG Ke, CHEN Ming, LU Wen-bo, YAN Peng, LENG Zhen-dong, . Investigation of influence of in-situ stress on presplitting induced fracture in abutment slot [J]. Rock and Soil Mechanics, 2019, 40(3): 1121-1128.
[7] 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.
[8] 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.
[9] 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.
[10] HU Shuai-wei, CHEN Shi-hai, . Analytical solution of dynamic response of rock bolt under blasting vibration [J]. Rock and Soil Mechanics, 2019, 40(1): 281-287.
[11] 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.
[12] 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.
[13] 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.
[14] 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.
[15] 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.
Viewed
Full text


Abstract

Cited

  Shared   
  Discussed   
[1] CUI Hao-dong, ZHU Yue-ming. Back analysis of seepage field of Ertan high arch dam foundation[J]. , 2009, 30(10): 3194 -3199 .
[2] ZHAO Hong-bao, YIN Guang-zhi, LI Xiao-shuang. Experimental study of characteristics of tensile burned gritstone[J]. , 2010, 31(4): 1143 -1146 .
[3] XU Xing-hua, SHANG Yue-quan, WANG Ying-chao. Research on comprehensive evaluation decision system for landslide disaster[J]. , 2010, 31(10): 3157 -3164 .
[4] CHEN Zhi-qiang, ZHANG Yong-xing, ZHOU Jian-ying. Experimental study of deep tunnel surrounding rock rockburst proneness with similarity material simulating method based on digital speckle correlation technique[J]. , 2011, 32(S1): 141 -148 .
[5] DU Wen-qi, WANG Gang. Statistical analysis of earthquake-induced sliding displacements of earth structures[J]. , 2011, 32(S1): 520 -0525 .
[6] YAN Zhi-hua, LIU Zhi-wei, LIU Hou-jian. Treatment and parameter selection of high slope of a power plant located in the terraces of Yellow River[J]. , 2009, 30(S2): 465 -468 .
[7] XU Zhen-hao , LI Shu-cai , LI Li-ping , HOU Jian-gang , SUI Bin , SHI Shao-shuai. Risk assessment of water or mud inrush of karst tunnels based on analytic hierarchy process[J]. , 2011, 32(6): 1757 -1766 .
[8] ZHANG Le-wen , ZHANG De-yong , QIU Dao-hong. Application of radial basis function neural network to geostress field back analysis[J]. , 2012, 33(3): 799 -804 .
[9] LI Shun-qun ,GAO Ling-xia ,CHAI Shou-xi. Significance and interaction of factors on mechanical properties of frozen soil[J]. , 2012, 33(4): 1173 -1177 .
[10] YAO Chi ,JIANG Qing-hui ,YE Zu-yang ,ZHOU Chuang-bing . Initial flow method for unconfined seepage problems of fracture networks[J]. , 2012, 33(6): 1896 -1903 .