Application of Mohr-Coulomb yield criterion in geo-technical engineering
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- Ανθούσα Ήρα Γεωργιάδης
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1 GLOBAL GEOLOGY Vol. 29 No. 4 Dec Mohr-Coulomb Tresca Mises Mohr-Coulomb Mohr-Coulomb Mohr-Coulomb Mohr-Coulomb Mohr-Coulomb TV TU452 A doi /j. issn Application of Mohr-Coulomb yield criterion in geo-technical engineering LIU Ying 1 2 YU Li-hong 3 1. College of Construction Engineering Jilin University Changchun China 2. Changchun Vanke Co. Ltd Changchun China 3. HydroChina Beijing Engineering Corporation Beijing China Abstract The yield curves and yield stress of Tresca Mises Double shear and Mohr-Coulomb yield criterions were discussed and compared to find the differences among them. The relation among Mohr-Coulomb yield criterion and the others were discussed and comfirmed the safety of Mohr-Coulomb yield criterion in geo-technical engineering and the relationships between fracture plane location and slip curves when the rock and soil fractured. The different yield criterions were analyzed and compared taking Yabiluo hydropower station geo-stresses for example and demonstrated the safety of Mohr-Coulomb yield criterion and the difference between failure surface and slip curves. Key words Mohr-Coulomb yield criterion safety Yabiluo hydropower station geo-stresses slip curves Tresca Mises Drukle-Plager Mohr-Coulomb Mohr
2 Coulomb Mohr-Coulomb S -D Strength Difference Effect τ c τ max Mohr-Coulomb Tresca φ 10 σ Tresca σ Mises σ DJ Mohr-Coulomb 11 π Mohr-Coulomb Mohr-Coulomb Mohr-Coulomb Mohr-Coulomb Tresca 1 Mohr-Coulomb Mises 1. 1 Mohr-Coulomb σ 1 σ 2 σ 3 3 Tresca 4 Mohr-Coulomb τ max = σ 1 σ 3 /2 = σ s /2 1 3 Mises 4 σ 1 - σ σ 2 - σ σ 3 - σ 1 2 = 6C = 2σ 2 s J 2 = C τ 13 + max τ 12 τ 23 = c c c = σ s τ 13 + max τ 12 τ 23 = σ s 3 Mohr-Coulomb 6-9 τ n = σ n tgφ + c 4 σ 1 - σ 3 = σ 1 + σ 3 sinφ + 2ccosφ 5 f = 1 2 I 1sinφ + cosθ σ 1 槡 3 sinθ sinφ J σ 槡 2 - ccosφ = π /6 θ σ π / Mohr-Coulomb σ m = σ 1 + σ 2 + σ 3 /3 σ 2 = σ m 1 σ m M M τ max = ± σ 1 σ 3 /2 Tresca π /4 α β Mohr-Coulomb τ max = ± σ 1 σ 3 /2 τ = τ max sinφ τ max τ max = c σ s = σ 1 + σ 2 /2 - σ 1 + σ 2 /2 sinφ 7 1 Fig. 1 Mohr-Coulomb Relations between failure surface and slip curves of Mohr-Coulomb yield criterion
3 4 Mohr-Coulomb 635 π /4 + φ /2 φ = 0 φ /2 1 2 Mohr-Coulomb 3. 2 Mohr-Coulomb 37 km π Mohr-Coulomb km 10 km 6 km V 25 ~ ~ ~ 80 m NE62 80 ~ 100 m Mohr-Coulomb 0. 24% Drukle Plager 13 π Mohr- 45% ~ 70% Coulomb 20% ~ 40% 5% ~ 25% Zienkiewicz and Pande ~ π Mohr-Coulomb Mohr- Coulomb 10 ~ 30 m π Mohr-Coulomb 1 ~ Mohr- m Coulomb Mohr-Coulomb Mohr-Coulomb 3 30 km km 1. 6 km 70 ~ m 63 km 616 km m m MW 32 km m 3 1 ZK10
4 Ⅱ Ⅲ NE50 ~ 85 NW SE 60 ~ 85 2 NW275 ~ 300 SW 17 σ H NE 40 ~ 65 σ h σ v 3 1 NE60 ~ 85 NW SE 70 ~ 85 2 NW310 ~ 330 NE SW 70 ~ 85 3 NW275 ~ 295 NE SW 80 ~ ~ ZK m m m m m m m m m m T g VII c = MPa φ = ~ 60 km NE -NEE σ H = 3 p s p r - p 0 8 σ h = p s 9 σ v = γd ~ 120 m Fig. 2 Theory Mohr s circle and its envelope lines 3
5 4 Mohr-Coulomb 637 Table 1 1 ZK10 Results of hydraulic fracturing stress of hole ZK10 /m /MPa /MPa P b P r P s P H P 0 T S H S h S V / / / N65 W N20 W N10 E N32 E P H P 0 P b P r P s T S h S H S v 2 Table 2 Statistics of yield stress results σ s /MPa Tresca Mises Mohr-Coulomb ZK10 c = 0. 6 ~ 0. 8 MPa φ = 35 ~ Tresca Mises c φ ZK10 Mohr-Coulomb Mohr-Coulomb Mohr-Coulomb 3 9 Mohr-Coulomb c φ Fig. 3 Relations between rock mass failure surface and slip curves of No. 9 measures
6 τ = tan ZK m J SHE Cheng-xue LIU Jie. Two-parameter parabolic-type yield criterion based on Mohr strength thoery J. Engineering Journal of Wuhan University J GAO Hong ZHENG Ying-ren FENG Xia-ting. Exploration Mohr-Coulomb π on yield an failure of material J. Chinese Journal of Mechanics and Engineering Mohr-Coulomb π /4 8. J. + φ / Mohr-Coulomb ZHENG Ying-ren GAO Hong. Discussion of strength theory for materials J. Journal of Guangxi University Nature Sciences Edition GAO Hong ZHENG Ying-ren FENG Xia-ting. Study J. on energy yield criterion of geomaterials J. Chinese Journal of Rock Mechanics and Engineering WANG Ji-song GUAN Ying-bin BAO Shang-xin et al. Application of similar material simulation in research of coal seam floor failure regularity J. Global Geology Biot J ZHANG Yan-jun ZHANG Yan-ji. The numberical analysis of elastic visco-plastic Biot's consolidation to marine soft soil J. Journal of Jilin University Earth Science Edition M. TONG Xiao-dong GONG Xiao-nan YAO En-yu. The property of the yield curves of the stable material on the GONG Xiao-nan. Advanced soil mechanics M. Hangzhou Zhejiang University Press M YANG Gui-tong. Introdution to elasticity and plasticity M. Beijing Tsing University Press Analysis of stability for the surrounding rock of underground excavations based on different yield criteria J. J YU Mao-hong LIU Feng-yu LIU Feng et al. A new Chinese Journal of Underground Space and Engineering general strength theory J. Chinese Journal of Civil En gineering Mohr J J JI Ming GAO Feng LIAO Meng-ke. Comparison of yield stress among several plastic yield criterions J. Journal of Plasticity Engineering π J stress π plane J. Journal of Zhejiang University J XIAO Ming ZHANG Zhi-guo CHEN Jun-tao et al. 13. Drucker-Prager
7 4 Mohr-Coulomb 639 J XU Gan-cheng ZHEN Ying-ren. Research on the appli- J. cation of the yield criterions in rock and soil engineering YANG Xue-qiang LING Ping-ping XIANG Shenghua. Comment on slope stability based on a series of Drucker-Prager failure criteria J. Rock and Soil Mechanics DAI Zi-hang SHEN Pu-sheng. Simplified from and applications of Mohr-Coulom equivalent area circle yield J XU Gan-cheng ZHEN Ying-ren. Based on a synthetic criterion J. Journal of Fuzhou University ananysis and study the quadratic yield criteria J. Site Investigation Science and Technology YOU Ming-qing. Study on the geo-stresses measurement J. Chinese Journal of Geotechnical Engineering J J with hydro-fracture of borehole J. Chinese Journal of Geo-technical Engineering 檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿 J. J LI Chun-yu XIE Yuan LIU Shao-guang et al. Factors KUANG Jun TANG Yong ZHU Guo-hua et al. Basic controlling the very low-porosity and permeability sandstone reservoir of the Yanchang Formation in Fuxian are- reservoirs in Junggar Basin J. Petroleum Exploration characteristics and main controlling factors of Jurassic a North Shaanxi J. Journal of Chengdu University of and Development Technology
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