Dynamic response analysis method, software and applications in engineering rockmass based on CASRock
PAN Pengzhi1, MEI Wanquan2
1.State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, Hubei, China; 2.School of Civil Engineering and Architecture, Wuhan University of Technology, Wuhan 430070, Hubei, China
Abstract: Aiming at the localized characteristics of engineering rock mass failure, the local updating rule was established for dynamic analysis of engineering rock mass by using cellular automata technique on spatial scale and Newmark integration method on time scale, respectively. Based on a self-developed cellular automata software for engineering rockmass fracturing process(CASRock), the dynamic version, i.e. CASRock.Dyna was developed. Investigating the propagationof elastic waves in the rock mass, the stress wave propagation obtained by CASRock.Dyna was consistent with the analytical results, which verifies the feasibility of CASRock.Dyna for elastic dynamic analysis. The elasto-plastic results obtained by CASRock.Dyna were consistent with the counterparts obtained by the boundary element method, which demonstrated the ability of CASRock.Dyna for non-linear dynamic analysis. Dynamic analysis of rock mass subjected to destress blasting and blasting disturbance was conducted to explore the effect of in situ stress, heterogeneity of rock mass and dynamic parameters on failure degree and scope.
潘鹏志, 梅万全. 基于CASRock的工程岩体动力响应分析方法、软件与应用[J]. 隧道与地下工程灾害防治, 2021, 3(3): 1-10.
PAN Pengzhi, MEI Wanquan. Dynamic response analysis method, software and applications in engineering rockmass based on CASRock. Hazard Control in Tunnelling and Underground Engineering, 2021, 3(3): 1-10.
CAI M. Influence of stress path on tunnel excavation response-numerical tool selection and modeling strategy[J]. Tunnelling and Underground Space Technology, 2008, 23(6): 618-628.
[2]
LI Xibing, CAO Wenzhuo, ZHOU Zilong, et al. Influence of stress path on excavation unloading response[J].Tunnelling and Underground Space Technology, 2014, 42: 237-246.
[3]
CAO Wenzhuo, LI Xibing, TAO Ming, et al. Vibrations induced by high initial stress release during underground excavations[J]. Tunnelling and Underground Space Technology, 2016, 53:78-95.
[4]
ZHU W C, WEI J, ZHAO J, et al. 2D numerical simulation on excavation damaged zone induced by dynamic stress redistribution[J]. Tunnelling and Underground Space Technology, 2014, 43: 315-326.
[5]
XIE L X, ZHANG Q B, GU J C, et al. Damage evolution mechanism in production blasting excavation under different stress fields[J]. Simulation Modelling Practice and Theory, 2019, 97: 101969.
[6]
ZHAO Rui, TAO Ming, ZHAO Huahao, et al. Dynamics fracture characteristics of cylindrically-bored granodiorite rocks under different hole size and initial stress state[J]. Theoretical and Applied Fracture Mechanics, 2020, 109: 102702.
[7]
FANG Xueqian, ZHANG Tengfei, LI Bailin, et al. Elastic-slip interface effect on dynamic stress around twin tunnels in soil medium subjected to blast waves[J]. Computers and Geotechnics, 2020, 119: 103301.
[8]
LI Chongjin,LI Xibing.Influence of wavelength-to-tunnel-diameter ratio on dynamic response of underground tunnels subjected to blasting loads[J]. International Journal of Rock Mechanics and Mining Sciences, 2018, 112: 323-338.
[9]
LI Xibing,LI Chongjin,CAO Wenzhou, et al. Dynamic stress concentration and energy evolution of deep-buried tunnels under blasting loads[J]. International Journal of Rock Mechanics and Mining Sciences, 2018, 104: 131-146.
[10]
LU Shiwei, ZHOU Chuanbo, ZHANG Zhen, et al. Theoretical study on dynamic responses of an unlined circular tunnel subjected to blasting P-waves[J]. Journal of Mechanics, 2021, 37: 242-252.
[11]
TAO Ming, MA Ao, CAO Wenzhuo, et al. Dynamic response of pre-stressed rock with a circular cavity subject to transient loading[J]. International Journal of Rock Mechanics and Mining Sciences, 2017, 99: 1-8.
[12]
TAO M, ZHAO H T, LI Z W, et al. Analytical and numerical study of a circular cavity subjected to plane and cylindrical P-wave scattering[J]. Tunnelling and Underground Space Technology, 2020, 95: 103143.
[13]
MEI Wanquan, LI Mei, PAN Pengzhi, et al. Blasting induced dynamic response analysis in a rock tunnel based on combined inversion of Laplace transform with elasto-plastic cellular automaton[J]. Geophysical Journal International, 2021, 225(1): 699-710.
[14]
SHAKERI R,MESGOUEZ A, LEFEUVE-MESGOUEZ G. Transient response of a concrete tunnel in an elastic rock with imperfect contact[J].International Journal of Mining Science and Technology, 2020, 30(5): 605-612.
[15]
ZHU W C, LI Z H, ZHU L, et al. Numerical simulation on rockburst of underground opening triggered by dynamic disturbance[J]. Tunnelling and Underground Space Technology, 2010, 25(5): 587-599.
[16]
LI Xing, LI Xiaofeng, ZHANG Qianbing, et al. A numerical study of spalling and related rockburst under dynamic disturbance using a particle-based numerical manifold method(PNMM)[J]. Tunnelling and Underground Space Technology, 2018, 81: 438-449.
[17]
FENG Xiating, PAN Pengzhi, ZHOU Hui. Simulation of the rock microfracturing process under uniaxial compression using an elasto-plastic cellular automaton[J]. International Journal of Rock Mechanics and Mining Sciences, 2006, 43(7): 1091-1108.
[18]
PAN Pengzhi, FENG Xiating, HUDSON J A. Study of failure and scale effects in rocks under uniaxial compression using 3D cellular automata[J]. International Journal of Rock Mechanics and Mining Sciences, 2009, 46(4): 674-685.
[19]
PAN Pengzhi, FENG Xiating, HUDSON J A. The influence of the intermediate principal stress on rock failure behaviour: a numerical study[J]. Engineering Geology, 2012, 124: 109-118.
[20]
PAN Pengzhi, YAN Fei, FENG Xiating. Modeling the cracking process of rocks from continuity to discontinuity using a cellular automaton[J]. Computers & Geosciences, 2012, 42: 87-99.
[21]
PAN Pengzhi, FENG Xiating, ZHENG Hong, et al. An approach for simulating the THMC process in single novaculite fracture using EPCA[J]. Environmental Earth Sciences, 2016, 75(15): 1-16.
[22]
PAN Pengzhi, YAN Fei, FENG Xiating, et al. Modeling of an excavation-induced rock fracturing process from continuity to discontinuity[J]. Engineering Analysis with Boundary Elements, 2019, 106: 286-299.
[23]
FENG Xiating, WANG Zhaofeng, ZHOU Yangyi, et al. Modelling three-dimensional stress-dependent failure of hard rocks[J]. Acta Geotechnica, 2021, 16(6): 1647-1677.
[24]
PAN P, FENG X. Numerical study of the rockburst mechanism using the elastoplastic cellular atomaton[M] // FENG Xiating. Rockburst: Mechanisms, Monitoring, Warning and Mitigation. Oxford, UK: Butterworth-Heinemann, 2018: 183-199.
[25]
PAN Pengzhi, FENG Xiating, ZHOU Hui. Development and applications of the elasto-plastic cellular automaton[J]. Acta Mechanica Solida Sinica, 2012, 25(2): 126-143.
[26]
LI Mei, MEI Wanquan, PAN Pengzhi, et al. Modeling transient excavation-induced dynamic responses in rock mass using an elasto-plastic cellular automaton[J]. Tunnelling and Underground Space Technology, 2020, 96: 103183.
[27]
KONTONI D P N, BESKOS D E. Transient dynamic elastoplastic analysis by the dual reciprocity BEM[J]. Engineering Analysis with Boundary Elements, 1993, 12(1): 1-16.
2021, Vol. 3 
