Abstract
A numerical code called RFPA-Dynamics was used to study the rockburst mechanism under dynamic load based on coupled static-dynamic analysis. The results show that dynamic disturbance has a very distinct triggering effect on rockburst. Under the dynamic load, rockburst is motivated by tensile stress formed by the overlapping of dynamic waves in the form of instantaneous open and cutting through of cracks in weak planes and pre-damaged areas. Meanwhile, the orientation of joint sets has an obvious leading effect on rockburst locations. Finally, a higher initial static stress state before dynamic loading can cause more pre-damaged area, thus leading to a larger rockburst scope.
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KAISER P K, McCREATH K R, TANNANT D D. Rockburst Research Handbook: A comprehensive summary of five years of collaborative research on rockbursting in hardrock mines [M]. Sudbury, Onfario: CAMIRO Mining Division, 1998: 3.
MULLER W. Numerical simulation of rockbursts [J]. Mining Science and Technology, 1991, 12: 27–42.
QI Qing-xin, CHEN Shang-ben, WANG Huai-xin, MAO De-bing, WANG Yong-xiu. Study on the relations among coal bump, rockburst and mining tremor with numerical simulation [J]. Chinese Journal of Rock Mechanics and Engineering, 2003, 22(11): 1852–1858. (in Chinese)
ORTLEPP W D, STACEY T R. Rockburst mechanisms in tunnels and shafts [J]. Tunnelling and Underground Space Technology, 1994, 9(1): 59–65.
ZHANG Zhi-qiang, GUAN Bao-shu, WENG Han-min. Basic analysis of rockbursting occurrence condition [J]. Journal of the China Railway Society, 1998, 20(4): 82–85. (in Chinese)
RUDAJEV V, TEISSEVRE R, KOZAK J, SILENY J. Possible mechanism of rockbursts in coal mines [J]. Pure and Applied Geophysics, 1986, 124(4/5): 841–855.
LI Chun-jie. The rockburst character and disposal during construction of Qinling tunnel [J]. World Tunnel, 1999(1): 36–41. (in Chinese)
WANG Xu-zhao, WANG Hong-yong, QU Jin-hong. Characteristic of rockburst disaster and its geological conditions in the Hongtoushan copper mine [J]. Geology and Prospecting, 2005, 41(6): 102–106. (in Chinese)
ANDERS C, TOMMY O. Rockbursting phenomena in a superficial rock mass in southern central Sweden [J]. Rock Mechanics and Rock Engineering, 1982, 15(2): 99–110.
LIU Si-yu, XU Ze-min. Rockburst control of deeply buried tunnels based on coupling of dynamic and static stresses [J]. Journal of Natural Disasters, 2010, 19(1): 177–184. (in Chinese)
WHYATT J K, BOARD M P. International Journal of Rock Mechanics and Mining Sciences & Geomechanics, 1991, 28(6):341342.
WANG Xian-neng, HUANG Run-qiu. Analysis of the influence of the dynamic disturbance on rockburst [J]. Mountain Research, 1998, 16(3): 188–192. (in Chinese)
WANG J A, PARK H D. Comprehensive prediction of rockburst based on analysis of strain energy in rocks [J]. Tunnelling and Underground Space Technology, 2001, 16: 49–57.
ZHAO J. Applicability of Mohr-Coulomb and Hoek-Brown strength criteria to the dynamic strength of brittle rock [J]. International Journal of Rock Mechanics and Mining Sciences, 2000, 37: 105–112.
ZHU W C, TANG C A. Micromechanical model for simulating the fracture process of rock [J]. Rock Mechanics and Rock Engineering, 2004, 37(1): 25–56.
ZHU W C, TANG C A. Numerical simulation of Brazilian disk rock failure under static and dynamic loading [J]. International Journal of Rock Mechanics and Mining Sciences, 2006, 43(2): 236–252.
ZHU W C, LIU J, TANG C A, ZHAO X D, BRADY B H. Simulation of progressive fracturing processes around underground excavations under biaxial compression [J]. Tunnelling and Underground Space Technology, 2005, 20(3): 231–247.
ZHU W C, LI Z H, ZHU L, TANG C A. Numerical simulation on rockburst of underground opening triggered by dynamic disturbance [J]. Tunnelling and Underground Space Technology, 2010, 25: 587–599.
PRIEST, STEPHEN D. Discontinuity analysis for rock engineering [M]. London: Chapman & Hall, 1993: 17.
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Foundation item: Project(90401004) supported by the Fundamental Research Funds for the Central Universities of China; Projects(20100471465, 201104572) supported by China Postdoctoral Science Foundation; Project(20091029) supported by Postdoctoral Science Foundation of Liaoning Province, China; Projects(50934006, 51111130206) supported by the National Natural Science Foundation of China
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Jia, P., Zhu, Wc. Dynamic-static coupling analysis on rockburst mechanism in jointed rock mass. J. Cent. South Univ. 19, 3285–3290 (2012). https://doi.org/10.1007/s11771-012-1405-7
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DOI: https://doi.org/10.1007/s11771-012-1405-7