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Upper bound analytical solution for surrounding rock pressure of shallow unsymmetrical loading tunnelsLEI Ming-feng(雷明锋)1, 2, PENG Li-min(彭立敏)1, SHI Cheng-hua(施成华)1, XIE You-jun(谢友均)1, TAN Li-xin(谭立... of virtual power, the upper bound solution for surrounding rock pressure of shallow unsymmetrical loading tunnel was derived and verified by an example. The results indicate that the calculated results......
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J. Cent. South Univ. (2017) 24: 1483-1493 DOI: 10.1007/s11771-017-3552-3 Unified analytical solution for deep circular tunnel with consideration of seepage pressure, grouting and lining LI Xue-feng... Abstract: A new unified analytical solution is presented for predicting the range of plastic zone and stress distributions around a deep circular tunnel in a homogeneous isotropic continuous medium......
Trans. Nonferrous Met. Soc. China 28(2018) 839-847 Influence of different solution methods on microstructure, precipitation behavior and mechanical properties of Al-Mg-Si alloy Guan-jun GAO1, Chen...: The effects of different solution methods on microstructure, mechanical properties and precipitation behavior of Al-Mg-Si alloy were investigated by scanning electron microscope, transmission electron......
the peak-aging. This phenomenon is related to the decomposition of the supersaturated solid solution and the formation of precipitates. The peak aging is attained at 120 °C for 24 h, similar... to the previous study [28-31], precipitation sequence of Al-Zn-Mg-Cu alloy is as follows: supersaturated solid solution (SSS) → coherent G.P. zone → η′ phase (semi-coherent precipitate) → η phase (stable......
J. Cent. South Univ. (2012) 19: 2650-2655 DOI: 10.1007/s11771-012-1323-8 Closed-form solution to thin-walled box girders considering effects of shear deformation and shear lag ZHOU Wang-bao(周旺... to the high order finite strip element method and the experimental results. The investigation shows that the closed-form solution is in good agreement with the numerical solutions derived according......
J. Cent. South Univ. (2016) 23: 3192-3203 DOI: 10.1007/s11771-016-3385-5 Numerical modeling dynamic process of multi-feed microwave heating of industrial solution media YANG Biao(杨彪)1, 2, 3, SUN Jun... and Springer-Verlag Berlin Heidelberg 2016 Abstract: The exothermic efficiency of microwave heating an electrolyte/water solution is remarkably high due to the dielectric heating by orientation......
Trans. Nonferrous Met. Soc. China 29(2019) 919-930 Microstructure evolution of modified die-cast AlSi10MnMg alloy during solution treatment and its effect on mechanical properties Zi-hao YUAN1, Zhi..., Beijing 100084, China Received 7 May 2018; accepted 7 January 2019 Abstract: To optimize the solution treatment process of a modified high-pressure die-cast AlSi10MnMg alloy, the influence......
