›› 2011, Vol. 32 ›› Issue (10): 3043-3047.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Weighted least squares fitting of free field equation of rock under chemical explosion

ZHANG Yu1, 2, 5, FAN Hua-lin3, 4, JIN Feng-nian1   

  1. 1. Engineering Institute of Engineers Corps, PLA University of Science and Technology, Nanjing 210007, China; 2. College of Science, PLA University of Science and Technology, Nanjing 210007, China; 3.Key Laboratory of Bridge-Structure Engineering, Chongqing Jiaotong University, Chongqing 400074, China; 4. College of Mechanics and Materials & Key Laboratory of Ministry of Education for Geomechanics and Embankment Engineering, Hohai University, Nanjing 210098, China; 5. Engineering College of the Chinese Arms Police Force, Xi?an 710086, China
  • Received:2011-05-16 Online:2011-10-10 Published:2011-10-13

PDF (Chinese)

1503

Abstract: Previous experiences in existing engineering are often referenced in designing a new engineering. Restricted by the limited data of free fields of rocks under chemical explosions, a unified equation has not been suggested in designing codes for protective structures. A weighted least squares fitting method is suggested as an effective method to predict the free field in rocks. The weighted factors were defined according to the similarities of the engineering, including mass of explosive, rock quality and wave impedance. According to several empirical equations and the suggested method, a modified equation for free fields in rocks is built and discussed.

Key words: rock, free field, weighted least-squares fitting

CLC Number: 

  • TU 452
[1] JIN Qing, WANG Yi-lin, CUI Xin-zhuang, WANG Cheng-jun, ZHANG Ke, LIU Zheng-yin, . Deformation behaviour of geobelt in weathered rock material-tire shred lightweight soil under pullout condition [J]. Rock and Soil Mechanics, 2020, 41(2): 408-418.
[2] ZHOU Cui-ying, KONG Ling-hua, CUI Guang-jun, YU Lei, LIU Zhen, . Molding simulation of soft rock based on natural red bed materials [J]. Rock and Soil Mechanics, 2020, 41(2): 419-427.
[3] ZHANG Shan-kai, LENG Xian-lun, SHENG Qian, . Study of water swelling and softening characteristics of expansive rock [J]. Rock and Soil Mechanics, 2020, 41(2): 561-570.
[4] WANG Pei-tao, HUANG Zheng-jun, REN Fen-hua, ZHANG Liang, CAI Mei-feng, . Research on direct shear behaviour and fracture patterns of 3D-printed complex jointed rock models [J]. Rock and Soil Mechanics, 2020, 41(1): 46-56.
[5] WANG feng, ZHANG Jian-qing, . Study of breakage behaviour of original rockfill materials considering size effect on particle strength [J]. Rock and Soil Mechanics, 2020, 41(1): 87-94.
[6] ZHANG Yan-bo, SUN Lin, YAO Xu-long, LIANG Peng, TIAN Bao-zhu, LIU Xiang-xin, . Experimental study of time-frequency characteristics of acoustic emission key signals during granite fracture [J]. Rock and Soil Mechanics, 2020, 41(1): 157-165.
[7] LU Hai-feng, MENG Xiang-shuai, YAN Wei, YAO Duo-xi, . Circular sliding solution of mining stability and failure depth of floor layered structure on coal face [J]. Rock and Soil Mechanics, 2020, 41(1): 166-174.
[8] JIANG Zhong-ming, LI Peng, ZHAO Hai-bin, FENG Shu-rong, TANG Dong, . Experimental study on performance of shallow rock cavern for compressed air energy storage [J]. Rock and Soil Mechanics, 2020, 41(1): 235-241.
[9] WENG Yong-hong, ZHANG Lian, XU Tang-jin, HUANG Shu-ling, DING Xiu-li, . Safety evaluation on interaction of new plug structure and surrounding rock mass under high water head [J]. Rock and Soil Mechanics, 2020, 41(1): 242-252.
[10] ZHOU Cui-ying, LIANG Ning, LIU Zhen, . Fractal characteristics of compression failure of red soft rock and cascading failure process [J]. Rock and Soil Mechanics, 2019, 40(S1): 21-31.
[11] ZHU Lei, HUANG Run-qiu, CHEN Guo-qing, YAN Ming, . Mechanical model and evolution of fracture system with a gentle dip angle in rock slope [J]. Rock and Soil Mechanics, 2019, 40(S1): 53-62.
[12] ZHANG Guo-kai, LI Hai-bo, WANG Ming-yang, LI Xiao-feng, . Crack propagation characteristics in rocks containing single fissure based on acoustic testing and camera technique [J]. Rock and Soil Mechanics, 2019, 40(S1): 63-72.
[13] ZHAO Guo-yan, LI Zhen-yang, WU Hao, WANG En-jie, LIU Lei-lei. Dynamic failure characteristics of sandstone with non-penetrating cracks [J]. Rock and Soil Mechanics, 2019, 40(S1): 73-81.
[14] XIAO Yao, DENG Hua-feng, LI Jian-lin, ZHI Yong-yan, XIONG Yu. The deterioration effect of fractured rock mass strengthened by grouting method under long-term immersion [J]. Rock and Soil Mechanics, 2019, 40(S1): 143-151.
[15] SONG Yong-jun, YANG Hui-min, ZHANG Lei-tao, REN Jian-xi. CT real-time monitoring on uniaxial damage of frozen red sandstone [J]. Rock and Soil Mechanics, 2019, 40(S1): 152-160.
Viewed
Full text


Abstract

Cited
  Shared   
  Discussed   
[1] ZHANG Guang-ming, LIU He, ZHANG Jin, WU Heng-an, WANG Xiu-xi. Mathematical model and nonlinear finite element equation for reservoir fluid-solid coupling[J]. , 2010, 31(5): 1657 -1662 .
[2] MEI Guo-xiong, LU Ting-hao, CHEN Hao, LI Zhi. True triaxial experiment of foundation pit considering initial stress[J]. , 2010, 31(7): 2079 -2082 .
[3] XU Ming, CHEN Jin-feng, SONG Er-xiang. Large scale triaxial testing of Douposi moderately-to-slightly weathered fill materials[J]. , 2010, 31(8): 2496 -2500 .
[4] LIN Hang，CAO Ping，LI Jiang-teng，JIANG Xue-liang，HE Zhong-ming. Deformation stability of three-dimensional slope based on Hoek-Brown criterion[J]. , 2010, 31(11): 3656 -3660 .
[5] RAN Long, HU Qi. Analysis of seepage failure of deep foundation pit in silty sand[J]. , 2009, 30(1): 241 -245 .
[6] WEI Ning，LI Xiao-chun，WANG Yan，GU Zhi-meng. Resources quantity and utilization prospect of methane in municipal solid waste landfills[J]. , 2009, 30(6): 1687 -1692 .
[7] NIU Wen-jie，YE Wei-min，LIU Shao-gang，YU Hai-tao. Limit analysis of a soil slope considering saturated-unsaturated seepage[J]. , 2009, 30(8): 2477 -2482 .
[8] WANG Ke-liang, LIU Ling, SUI Tong-bo , XU Yun-hai, HU Ting-zheng. Experiment research on anti-shear(cut)performance of dam bedrock-rubber powder modified concrete in-situ[J]. , 2011, 32(3): 753 -756 .
[9] LIN Da-ming1,2，SHANG Yan-jun1，SUN Fu-jun3，SUN Yuan-chun1,2，WU Feng-bo1,2，LIU Zhi. Study of strength assessment of rock mass and application[J]. , 2011, 32(3): 837 -842 .
[10] DENG Dong-ping，LI Liang，ZHAO Lian-heng. A new method of sliding surface searching for general stability of slope based on Janbu method[J]. , 2011, 32(3): 891 -898 .
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