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cylinder apparatus(HCA) test and microscopic failure mechanism of soil. The stability of anisotropic layered slope was analyzed by strength reduction method. The results show that with different strength... of the influence of anisotropy when the soil exhibits strong anisotropy. Key words: slope stability; anisotropy; undrained shear strength; strength reduction method 边坡稳定分析是边坡设计的前提,能有效判断边坡失稳时的推力,为后续支护结构的设计提供......
Preparation of TiC powders by carbothermal reduction method in vacuum SEN Wei1, 2, 3, XU Bao-qiang1, 2, YANG Bin1, 2, SUN Hong-yan1, 2, SONG Jian-xun1, 2, WAN He-li1, 2, DAI Yong-nian1, 2 1... are observed on the surface of block product. Key wards: titanium dioxide; titanium carbide; vacuum; carbothermal reduction method 1 Introduction Titanium carbide, with cubic crystal structure......
contact method. This paper focuses on discussing the mechanism of the reduction process and the relationships of RM (a revised reduction index) with reduction temperature, reduction time, and mole ratio... and reduction time and was 96.34% when TRedu=1273 K, tRedu=6 h, and nTiO2/nCaCl2=4; the reasonable nTiO2/nCaCl2 value is 3-5 for the pellets with enough strength and high RM. Key words: titanium dioxide; titanium......
, the dilatant analysis was carried out. Key words: shallow tunnel; strength reduction method; dilatancy; pore water pressure  ... a slip surface. Strength reduction method (SRM) was proposed as early as 1955 by BISHOP. It incorporates finite element, finite difference or limit equilibrium method, and is widely used in all kinds......
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Tao. Mechanisms of strength decrease in the initial reduction of iron ore oxide pellets [J]. Powder Technology, 2012, 221: 284-291. [12] WANG You-liu. Ferrous metallurgy (ironmaking) [M]. Beijing... to the blast furnace [J]. ISIJ International, 2002, 42(11): 1203-1211. [14] PANG Jian-ming, GUO Pei-min, ZHAO Pei. Kinetics of reduction of hematite by H2 using nonisothermal thermogravimetric method [J......
of slope directly by the calculation results of strength reduction method, and analyze the influential factors of slope stability, a numerical model was established in plane strain mode by FLAC3D... is the strength reduction method; and the second is the numerical calculation combined with the optimum searching method. The second numerical method combines the numerical results with the critical slip plane......
, and the analysis of the slope stability was given based on the strength reduction. The results show that the structural parameters and cohesion change with similar hyperbola, and internal friction angle... the strength reduction coefficient reaches a certain value, the structural parameters significantly reduce in the vicinity of the sliding surface and form a cross-region, and at this time, the reduced......
to build the random field model of shear strength parameters. Thereafter, the strength reduction finite element method was adopted to simulate the process of slope failure. The criteria for evaluating... is wider. Key words: spatial variation; slope stability; strength reduction finite element method; stochastic finite element method 在岩体工程领域,传统的考虑边坡稳定性的方法是使用安全系数评判其风险等级.但是,安全系数并非评判边坡风险等级的唯一标准,即使边坡具有相同的安全系......