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工程应用. 关键词:沥青混合料；复杂应力状态；三轴拉压；强度试验；破坏准则 中图分类号:U416.217 文献标志码:A 文章编号:1672-7207(2017)07-1908-07 Failure criterion... characteristics of AC-13C asphalt mixture were studied under the combined action of compression and tension stress through the tests of 74 specimens. A linear failure criterion of AC-13C asphalt mixture......
; 文章编号:1672-7207(2016)09-3225-06 Intermediate principal stress effect and failure criterion of asphalt mixture under triaxial compression state HUANG Tuo, LI Yipeng, ZHENG... of specimens were observed. The octahedral failure criterion of AC-13C asphalt mixture was established under triaxial compression state. The results indicate that failure mode of specimen gradually......
environment system in water abundant mines was founded, and the criterion was built to judge whether system function failed and caused disaster. The built system model and disaster criterion were applied... environment system of the groundwater abundant mines is advisable. The system model and criterion are practical and effective, which provide decision support for prevention and control of mine water disaster......
and Economics, Jinan 250014, China;3. Institute of Engineering Corps, Xuzhou 221004, China)Abstract:Based on the evolution of post-peak strength parameters, using Mohr-Coulomb strength criterion,regarding...-strain relationship; stochastic distribution; rock mass with penetrative cracks; evolution of strength parameters; Mohr-Coulomb strength criterion......
based on the generalized Hoek-Brown failure criterion. And the calculation approaches for plastic radius and the shape of plastic zone around a tunnel and the critical internal support pressure were... criterion. The comprison results will be shown later that the differences between them are very close. Key words: shallow circular tunnel; semi-infinite space; plastic zone; stress distribution......
and test data were used to analyze ore crushing process, failure characteristics, strength criterion, elastic modulus, tear strength and compressive strength. The results show that the crushing process... pressure are closely related. Mohr-Coulomb criterion is more suitable for judging the broken poly-metallic sulfide. With the increase of confining pressure, the elastic modulus is gradually decreased......
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and comparison with experiments 表2 二次多项式函数中的系数 Table 2 Yield criterion coefficients K-B屈服准则在塑性应变0,0.04和0.08下标定的系数如图12所示,从图中可以看出不同应变下模型的系数C保持不变,但是K-B屈服准则的其他3个系数,和均与塑性应变表现出了一定的变化关系.针对K-B屈服准则的系数... function for anisotropic materials[J]. International Journal of Plasticity, 1991, 7(7): 693-712. [9] KARAFILLIS A P, BOYCE M C. A general anisotropic yield criterion using bounds and a transformation......
: Any point in rock’s post-peak softening stage satisfying Mohr-Coulomb critical failure criterion was assumed and then the post-peak rock subsequent yielding plane model was built. Several Mohr’s... the piecewise linear functions based on Mohr-Coulomb criterion and the friction angle φ was deduced. The model of post-peak stress-strain relationship was obtained finally. The strain softening processes......
Criterion. Then in order to test its rationality, the RMi was used to a hydropower project of the southwest in China. The results show that the evaluation parameters of this method are easily...; Hoek-Brown failure criterion 目前,越来越多的大跨度地下水电站,核废料仓库及地下巷道等已经或即将开工建设,出于安全性和经济性考虑,对其围岩岩体质量及力学参数的可靠评价就显得尤为重要[1].对岩体质量评价而言,RMR分类(Bieniawski),Q系统围岩分类(Barton)是最常用的2种评价方法[2-3],但这2种方法各自存在一定的缺陷,比如分类指标过于笼统,RQD值......
