AI Chat Paper
Discover the SciOpen Platform and Achieve Your Research Goals with Ease.
Search articles, authors, keywords, DOl and etc.
{{expandStatus?'Exit ':''}}Advanced Search
The morphology of the plastic zone of roadway surrounding rock has an important influence on the failure mode and degree of roadway. In order to explore the evolution of plastic zone morphology under three-dimensional stress field, this paper derives the axial stress expression based on elastic mechanics, and determines the approximate solution method of 3D plastic zone under 3D strength criterion according to the idea of solving the boundary equation of butterfly plastic zone. By determining the surrounding rock stress loading scheme through equal spherical stress p and equal deviatoric stress q with different Lode angles θσ, the morphological evolution of the plastic zone under different 3D strength criteria is studied in depth, and the low sensitivity of the criterion for butterfly failure is demonstrated. Based on the butterfly failure theory, the asymmetric deformation failure mechanism and control technology of 160206 return roadway in Yangchangwan are analyzed. The results show that: 1) Under the same p, q and different θσ stress loading conditions, the morphology of the plastic zone under the five strength criteria shows the evolution patterns of round, oval and butterfly shapes, and the morphology of the plastic zone of surrounding rock is basically consistent for each strength criterion under the same θσ. 2) Under the loading scheme with same stress state and different stress directions, the plastic zone morphology of surrounding rock varies greatly. The shape of the plastic zone is largely determined by the horizontal lateral pressure ratio. The axial lateral pressure has a greater influence on the size of the plastic zone, but less influence on the shape of the plastic zone. 3) Under the influence of superimposed mining, the roof of 160206 return roadway presents asymmetric large deformation and failure. Based on the support idea of butterfly plastic zone, the collaborative support technology of ' asymmetric anchor cable + advanced unit support + borehole pressure relief ' has been applied, and good supporting effect has been achieved.
WANG Kai, YANG Bao-gui, WANG Peng-yu, et al. Deformation and failure characteristics of gob-side entry retaining in soft and thick coal seam and the control technology[J]. Rock and Soil Mechanics, 2022, 43(7): 1913−1924.
KANG Yong-shui, GENG Zhi, LIU Quan-sheng, et al. Research progress on support technology and methods for soft rock with large deformation hazards in China [J]. Rock and Soil Mechanics, 2022, 43(8): 2035−2059.
WANG Kai-xing, XUE Jia-qi, PAN Yi-shan, et al. Study on the mechanism of coal bursts induced by quasi-resonance of roof-support system[J]. Rock and Soil Mechanics, 2023, 44(3): 717−727.
WANG Lei, ZHANG Shuai, LIU Huai-qian, et al. Research on energy dissipation and damage failure law of gas-bearing coal under impact loading[J]. Rock and Soil Mechanics, 2023, 44(7): 1901−1915.
GUO Xiao-fei, GUO Lin-feng, LI Chen, et al. A quantitative assessment method of roadway rockburst risk based on the plastic zone shape coefficient[J]. Journal of China University of Mining and Technology, 2021, 50(1): 39−49, 78.
KASTNER H. Statics of tunnels and trenches[M]. Shanghai: Shanghai Science and Technology Press, 1980.
MA Nian-jie, HOU Chao-jiong. Theory and application of ground pressure in pre mining roadway[M]. Beijing: Coal Industry Press, 1995.
ZHAO Zhi-qiang, MA Nian-jie, LIU Hong-tao, et al. A butterfly failure theory of rock mass around roadway and its application prospect[J]. Journal of China University of Mining and Technology, 2018, 47(5): 969−978.
YIN Guang-zhi, LU Jun, ZHANG Dong-ming, et al. Study on plastic zone and permeability-increasing radius of borehole surrounding rock under true triaxial stress conditions[J]. Rock and Soil Mechanics, 2019, 40(Suppl.1): 1−10.
ZHAO Hong-bao, CHENG Hui, WANG Lei, et al. Distribution characteristics of deviatoric stress field and failure law of roadway surrounding rock under non-hydrostatic pressure[J]. Journal of China Coal Society, 2021, 46(2): 370−381.
BEHNAM B, FAZLOLLAH S, HAMID M. Prediction of plastic zone size around circular tunnels in non-hydrostatic stress field[J]. International Journal of Mining Science and Technology, 2014(1): 81−85
XU M F, WU S C, GAO Y T, et al. Analytical elastic stress solution and plastic zone estimation for a pressure-relief circular tunnel using complex variable methods[J]. Tunnelling and Underground Space Technology, 2019, 84(2): 381−398.
WANG Wei-jun, DONG En-yuan, YUAN Chao. Boundary equation of plastic zone of circular roadway in non-axisymmetric stress and its application[J]. Journal of China Coal Society, 2019, 44(1): 105−114.
DONG Hai-long, GAO Quan-chen, ZHANG Zhao, et al. Approximate solution and numerical simulation for plastic zone of roadway surrounding rock under unequal compression in two directions[J]. Journal of China Coal Society, 2019, 44(11): 3360−3368.
WU Xiang-ye, WANG Jing-ya, CHEN Shi-jiang, et al. Regulation principle and stability control of plastic zone in repeated mining roadway[J]. Rock and Soil Mechanics, 2022, 43(1): 205−217.
GUO Xiao-fei, GUO Lin-feng, MA Nian-jie, et al. Applicability analysis of the roadway butterfly failure theory[J]. Journal of China University of Mining and Technology, 2020, 49(4): 646−653, 660.
SHI H Y, MA Z K, ZHU Q, et al. Comparison of shape characteristics of plastic zone around circular tunnel under different strength criteria[J]. Journal of Mechanics, 2020, 36(6): 1−8.
XU Zhi-lun. Elastic mechanics brief tutorial[M]. Beijing: Higher Education Press, 2013.
LI Yong-en, GUO Xiao-fei, MA Nian-jie, et al. Research status and evaluation of theoretical calculation of plastic zone boundary for hole surrounding rock[J]. Coal Science and Technology, 2021, 49(5): 141−150.
ZHENG Ying-ren. Principle of rock-soil plasticity: generalized plasticity[M]. Beijing: China Building Industry Press, 2002.
SHI Wei-cheng, ZHU Jun-gao, DAI Guo-zhong, et al. True triaxial tests on influence of spherical and deviatoric stresses on deformation of coarse-grained soil[J]. Chinese Journal of Geotechnical Engineering, 2015, 37(5): 776−783.
MATSUOKA H, NAKAI T. Stress deformation and strength characteristics of soil under three different principal stresses[J]. Proceedings of the Japan Society of Civil Engineers, 1974, 232(12): 59−70.
MATSUOKA H, NAKAI T, UENO K. A general failure criterion and stress-strain relation for granular materials to metals[J]. Soils and Foundations, 1992, 30(2): 119−127.
MOGI K. Effect of the intermediate principal stress on rock failure[J]. Journal of Geophysical Research Atmospheres, 1967, 72(20): 5117−5131.
MOGI K. Effect of the triaxial stress system on the failure of dolomite and limestone[J]. Journal of Geophysical Research, 1971, 11(2): 111−127.
Al-AJMI A M, ZIMMERMAN R W, Stability analysis of vertical boreholes using the Mogi–Coulomb failure criterion[J]. International Journal of Rock Mechanics and Mining Sciences, 2006, 43(8): 1200−1211.
Al-AJMI A M, ZIMMERMAN R W, Relation between the Mogi and the Coulomb failure criteria[J]. International Journal of Rock Mechanics and Mining Sciences, 2005, 42(3): 431−439.
ZHANG Xue-yan, YAN Shu-wang. Foundation of geotechnical plastic mechanics[M]. Tianjin: Tianjin University Press, 2004.
DRUCKER D C, PRAGER W. Soil mechanics and plastic analysis or limit design[J]. Journal of Applied Mathematics. 1952, 10(2): 157−65.
DENG Chu-jian, HE Guo-jie, ZHENG Ying-ren. Studies on Drucker-Prager yield criterions based on M-C yield criterion and application in geotechnical engineering[J]. Chinese Journal of Geotechnical Engineering, 2006, 28(6): 735−739.
LADE P V, DUNCAN J M. Elastoplastic stress-strain theory for cohesionless soil[J]. Journal of the Geotechnical Engineering Division, 1975, 101(10): 1037−1053.
SABD F. Lade and modified Lade 3D rock strength criteria[J]. Rock Mechanics and Rock Engineering, 2012 4(6): 1001−1006.
LIU Hong-tao, HAN Zi-jun, GUO Xiao-fei, et al. Approximate solution of plastic zone of surrounding rock considering axial stress[J]. Coal Science and Technology, 2022, 51(10): 12−23.
ZHAO Zhi-qiang, MA Nian-jie. Stability analysis of roadway surrounding rock and discussion on the connotation of butterfly failure theory: responses to "discussion on a butterfly failure theory of rock mass around roadway and its application prospect"[J]. Journal of China University of Mining and Technology, 2019, 48(3): 685−692.
JIANG Li-shuai, WU Quan-sen, LI Xiao-yu, et al. Numerical simulation on coupling method between mining-induced stress and goaf compression[J]. Journal of China Coal Society, 2017, 42(8): 1951−1959.
315
Views
56
Downloads
0
Crossref
0
Web of Science
0
Scopus
0
CSCD
Altmetrics
京公网安备11010802044758号