Interval fracturing of unloading rock-columns and disking mechanisms of rock cores
HUANG Houxu1,LV Yaru2,CAI Yi1#br#
(1. College of Civil Engineering,Anhui Jianzhu University,Hefei,Anhui 230601,China;2. College of Mechanics and Materials,Hohai University,Nanjing,Jiangsu 210098,China)
JAEGER J C,COOK N G W. Pining off and disking of rocks[J]. Journal of Geophysical Research,1963,68(6):1 759-1 765.
[15]
GLENN L A,CHUDNOVSKY A. Strain energy effects on dynamic fragmentation[J]. Journal of Applied Physics,1986,59(4):1 379- 1 380.
[6]
OBERT L,STEPHENSON D E. Stress conditions under which core disking occurs[J]. Society of Mining Engineering,1965,238:227-235.
[1]
李占海,李邵军,冯夏庭,等. 深部岩体岩芯饼化特征分析与形成机制研究[J]. 岩石力学与工程学报,2010,30(11):2 254-2 266. (LI Zhanhai,LI Shaojun,FENG Xiating,et al. Characteristics and formation mechanism of core disking in deep rock mass[J]. Chinese Journal of Rock Mechanics and Engineering,2010,30(11):2 254- 2 266.(in Chinese))
[7]
ISHIDA T,SAITO T. Observation of core disking and in situ stress measurements:stress criteria causing core disking[J]. Rock Mechanics and Rock Engineering,1995,28(3):167-182.
[8]
BAUCH E,LEMPP C. Engineering geology for infrastructure planning in Europe[M]. Heidelberg Berlin:Press of Springer,2004:244-254.
[3]
姜谙男,曾正文,唐春安. 岩芯成饼单位安全度三维数值试验及地应力反馈分析[J]. 岩石力学与工程学报,2010,29(8):1 610-1 617. (JIANG Annan,ZENG Zhengwen,TANG Chun'an. Three- dimensional numerical test of element safety degree of rock core disking and feedback analysis of geostress[J]. Chinese Journal of Rock Mechanics and Engineering,2010,29(8):1 610-1 617.(in Chinese))
[4]
HAST N. Limits of the stress measurements in the earth′crust[J]. Rock Mechanics,1979,11(3):143-150.
[9]
LIM S S,MARTIN C D. Core disking and its relationship with stress magnitude for Lac du Bonnet[J]. International Journal of Rock Mechanics and Mining Sciences,2010,47(2):254-264.
[14]
GRADY D E. Local inertial effects in dynamic fragmentation[J]. Journal of Applied Physics,1982,53(1):322-325.
[16]
SHENOY V B,KIM K S. Disorder effects in dynamic fragmentation of brittle materials[J]. Journal of the Mechanics and Physics of Solids,2003,51(11):2 023-2 035.
[18]
ZHANG Z X. An empirical relation between model fracture toughness and the tensile strength of rock[J]. International Journal of Rock Mechanics and Mining Sciences,2002,39(7):401-406.
[2]
严 鹏,卢文波,陈 明,等. 高应力取芯卸荷损伤及其对岩石强度的影响[J]. 岩石力学与工程学报,2013,32(4):681-688. (YAN Peng,LU Wenbo,CHEN Ming,et al. Coring-induced unloading damage to rock samples under high stress condition and its impact on rock strength[J]. Chinese Journal of Rock Mechanics and Engineering,2013,32(4):681-688. (in Chinese))
[12]
MATSUKI K,KAGA N,YOKOYAMA T,et al. Determination of three dimensional in situ stress from core disking based on analysis of principal tensile stress[J]. International Journal of Rock Mechanics and Mining Sciences,2004,41(7):1 167-1 190.
[10]
王明洋,范鹏贤,李文培. 岩石劈裂和卸载破坏机制[J]. 岩石力学与工程学报,2010,29(2):234-241.(WANG Mingyang,FAN Pengxian,LI Wenpei. Mechanism of splitting and unloading failure of rock[J]. Chinese Journal of Rock Mechanics and Engineering,2010,29(2):234-241.(in Chinese))
[11]
KAGAA N,MATSUKI K,SAKAGUCHI K. The in-situ stress states associated with core disking estimated by analysis of principal tensile stress[J]. International Journal of Rock Mechanics and Mining Sciences,2003,40(5):653-665.
[13]
李永池. 波动力学[M]. 合肥:中国科学技术大学出版社,2015:8-15.(LI Yongchi. Wave mechanics[M]. Heifei:Press of University of Science and Technology of China,2015:8-15.(in Chinese))
[17]
GRADY D E. Fragment size distributions from the dynamic fragmentation of brittle solids[J]. International Journal of Impact Engineering,2008,35(12):1 557-1 562.