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安全因数
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  safety factor
     Base on the above, the instantaneous safety factor of slope can be found by use of general methods of slope stability analysis.
     在此基础上瞬态的斜坡安全因数即可通过常规的稳定性分析方法求得。
短句来源
     A new method to account for the influence of the belt speed on the safety factor is presented.
     提供了说明带速对安全因数影响的一种新方法。
短句来源
     Judgment criteria for karst collapse were obtained through quantitative analysis. Further, safety performance of the overburden above the corrosion cavity was evaluated using a safety factor F s .
     通过定量分析 ,得到了相应的塌陷判据 ,并用安全因数Fs 来表征溶蚀空间上覆盖层的安全性。
短句来源
     So, adoption of double-K fracture criterion considering safety factor is better reasonable methods in engineering design.
     提出工程中宜采用双K断裂准则 ,并综合考虑安全因数进行设计。
短句来源
     So, adoption of double-K fracture criterion considering safety factor is better reasonable methods in engineering design.
     提出工程中宜采用双K断裂准则,并综合考虑安全因数进行设计。
  “安全因数”译为未确定词的双语例句
     On the basis of summarizing the research findings of our predecessors, the research train of thought of Wu Hongwei in particular, through the simple governed equation of non-coupling unsaturated seepage, and combined with rainfall conditions of macroscopic statistical analysis, the paper evaluated the two-dimensional values of transient seepage field according to the variation of rainfall, rainfall strength , duration time for the landslide, thus realtime dynamic safety factors during rainfall process are acquired.
     在总结前人研究成果的基础上,参考了吴宏伟的研究思路,即从最简单的非耦合型的非饱和渗流控制方程入手,对非饱和土质滑坡,结合宏观区域统计分析的降雨条件,求出滑坡随降雨量、降雨强度、降雨历时不同时的暂态渗流场二维问题的数值解,从而掌握滑坡随降雨过程的实时动态安全因数
短句来源
     (6) The safety coefficient method, which is aimed to construct the evaluation of traffic conditions using system dynamics, is proposed to modify the drawbacks of the current evaluation of traffic safety.
     (6)针对目前我国交通安全评价方法存在的缺陷,运用系统动力学原理,建立了交通安全度评价的安全因数方法。
短句来源
     Slings for lifting loads in EQ1030 truck paint line were designed and calculated based on safe factor and fuzzy reliable method. The results show that fuzzy reliability of the cliver is satisfied the actual requirements.
     采用安全因数法和模糊可靠性方法对EQ1030轻型卡车车身底漆线吊具前吊钩进行设计计算,结果表明前吊钩模糊可靠度基本满足现场使用要求并与现场反映的情况相吻合。
短句来源
     The designed depth of well Tashen 1 is 8000m, core interval is in inclined open hole after sidetracking. The well has long inclined open hole section, developed fracture and breakable lithology, so, its coring operation is very difficult.
     塔深1井目前是亚洲最深井。 由于该井超深(设计井深8000m),钻具柔性强,需要考虑的安全因数多,而且取心井段在该井侧钻后斜裸眼中,斜裸眼段长,岩性为白云岩为主,裂缝发育,岩性很破碎,取心施工难度非常大。
短句来源
  相似匹配句对
     SECURITY
     安全
短句来源
     Safety of Colour TV Tube
     彩色显像管的安全
短句来源
     A new method to account for the influence of the belt speed on the safety factor is presented.
     提供了说明带速对安全因数影响的一种新方法。
短句来源
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  safety factor
Numerical analysis of the safety factor and effective ion mass in a tokamak plasma with the help of the discrete alfvén wave spe
      
Experiments were conducted at a fixed value of the safety factor at the plasma boundary (qa ? 2.3).
      
In particular, it is shown that, for tokamaks with a slightly rippled longitudinal magnetic field, the frequency of oscillations in the range q>amp;gt;2 (where q is the safety factor) is, as a rule, much higher than the damping rate.
      
They are oriented to the mean antibiotic serum level in the middle of the application interval (timeτ/2) minus the standard variation (s) as an additional safety factor.
      
If phenolic resin can be employed as a matrix of FRP, such FRP can have a higher fire safety factor which will be a desirable property in the structures of vessels and railway carriages.
      
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  margin of safety
Most individuals retreat, providing a margin of safety, and then wave.
      
The essential nutrient selenium is required in microgram amounts [recommended dietary allowance (RDA)?=?55?μg/day, 699?nmol/day] and has a narrow margin of safety (upper tolerable intake limit?=?400?μg/day, 5?μmol/day).
      
These results, particularly for beef, suggest the importance of determining the shape of the survival curves (concave, convex or sigmoidal) when estimating times needed to obtain an adequate margin of safety for thermal processes of red meat.
      
Use of a heparin coated artificial lung may enhance the margin of safety of extracorporeal gas exchange and ultimately broaden its indications.
      
Taking into account a margin of safety, a qualitative cut-off at 1 ng/ml THC and a limit of quantitation of 2 ng/ml THC in serum should be achievable in all forensic toxicology laboratories.
      
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In order to obtain the actual shearing strength parameters of soil for stability evaluations. This should perform post-mortem analyses of actual slides in conjunction with modern methods of determining the shearing strength of soil. This is the only way to perfact existing technigues. In this paper, the shearing strength envelope of critical cirles method is very useful! for post-mortem analyses of actual, slides.

土体稳定分析的可靠性,取决于正确预测土的抗剪强度,可是现有技术水平尚难以准确测出符合实际的真实强度。此强度及其测试技术只有从实际土体滑坍现象中探求,可是从中反演分析c,Φ值是尚未解决的难题,本文建议的临界圆的强度包线法就可迎刃而解。本文研究了14座失稳工程,认为真实强度测试方法与土的性质有关。故在进行稳定分析时应按土的性质选用抗剪强度测试方法及相应的临界安全因数,在工程设计中采用的稳定安全因数应大于此值,建议一般工程应大于1.3,重要工程不小于1.5为宜。

This study suggests an analysis method under assumption of that the both soil water movement parameters and shear strength parameters related to the saturated degree can be determined by experiments and experiences. The instantaneous distributions of water content and shear strength parameters can be solved numerically for arbitrarily given boundry condition of infiltration and evaporation. Base on the above, the instantaneous safety factor of slope can be found by use of general methods of slope stability analysis....

This study suggests an analysis method under assumption of that the both soil water movement parameters and shear strength parameters related to the saturated degree can be determined by experiments and experiences. The instantaneous distributions of water content and shear strength parameters can be solved numerically for arbitrarily given boundry condition of infiltration and evaporation. Base on the above, the instantaneous safety factor of slope can be found by use of general methods of slope stability analysis.

本研究建议的一种分析方法假定斜坡非饱和土体的水分运动参数及抗剪强度参数与饱和度的依赖关系均可根据实验或经验确定。通过数值计算方法求解任意给定的入渗和蒸发边界条件下斜坡土体的瞬态含水率分布及与其相对应的瞬态抗剪强度参数分布。在此基础上瞬态的斜坡安全因数即可通过常规的稳定性分析方法求得。

Slope instability is closely related to rain infiltration in many countries. It is vital to understand this relation for prediction and prevention of landslides. Improved understanding can be gained through parametric studies. In this paper, a typical steep unsaturated cut slope in Hong Kong has been adopted for this parametric study. Transient seepage due to rain infiltration is computed using the finite element method. The computed transient pore water pressures are then used for subsequent limit equilibrium...

Slope instability is closely related to rain infiltration in many countries. It is vital to understand this relation for prediction and prevention of landslides. Improved understanding can be gained through parametric studies. In this paper, a typical steep unsaturated cut slope in Hong Kong has been adopted for this parametric study. Transient seepage due to rain infiltration is computed using the finite element method. The computed transient pore water pressures are then used for subsequent limit equilibrium analyses of the slope. An extended Mohr Coulomb failure criterion is used to allow for shear strength variations as a result of changes in matric suction. Effects of various rainfall events, hydrogeological conditions and use of protective cover on the cut slope are investigated. The results of numerical simulation show that rainfall intensity, duration and patterns have a significant influence on the transient seepage in the soil and the stability of the slope. Anisotropic soil permeability, presence of an impeding layer and conditions of surface cover can also strongly affect the transient flows and hence the stability of slope.

很多国家和地区的斜坡失稳与雨水入渗有密切关系。通过参数分析研究可以深化对这种关系的认识和理解,因而对滑坡灾害的预测和预防有重要意义。针对香港地区一种典型非饱和土斜坡,用有限元法模拟雨水入渗引起的暂态渗流场,然后将计算得到的暂态孔隙水压力分布用于斜坡的极限平衡分析。计算中采用延伸的摩尔-库伦破坏准则以便考虑基质吸力对抗剪强度的贡献,研究了降雨特征、水文地质条件及坡面防渗处理等因素对暂态渗流场和斜坡安全因数的影响。数值模拟结果表明:降雨强度、降雨历时和雨型对暂态渗流场及斜坡稳定性有明显的影响;土体的渗透系数,尤其是渗透系数各向异性的影响特别显著;斜坡中相对隔水层的存在以及斜坡防渗护面的效果等因素的影响均不容忽视。

 
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