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液化评价
相关语句
  liquefaction evaluation
     Study on Dynamic Response and Liquefaction Evaluation of Li-west Ditch Tailing Dam During Earthquake
     栗西沟尾矿坝地震动力反应及液化评价研究
短句来源
     Comparison and Discussion of Methods of Liquefaction Evaluation——Taking Tianli Edifice and Tianfu Garden as the Examples
     地震液化评价方法的对比与讨论——以添立大厦和添富花园工程为例
短句来源
     The new advances in geotechnical visualization research are discussed. The application prospect of sand liquefaction evaluation using visualization technology is analyzed,and the design criterion and system architecture are discussed preliminary. This study has practical significance for the threedimensional analysis of sand liquefaction by earthquake and the intelligent forecast and prevention of liquefaction hazards.
     阐述了可视化技术和理论的研究现状,探讨了可视化技术在岩土工程应用研究进展,并分析和展望了可视化技术在地震砂土液化评价中的应用前景,初步探讨了地震砂土液化可视化评价系统设计准则和系统结构,这项研究对地震砂土液化的空间分析、地震液化灾害智能评价和预防具有重要实际意义。
短句来源
     Generally, seismic liquefaction evaluation involves three steps: - initial estimation, secondary estimation and determination of liquefaction degree.
     地震液化评价工作包括初判、复判和液化等级判定三个步骤。
短句来源
     Based on a large amount of field and laboratory tests the standard and methods for the liquefaction evaluation of sandy silt in the old course of Suzhou River are presented.
     本文根据工程实际的大量现场测试和室内试验 ,提出了上海苏州河故道砂质粉土综合运用宏观评判和微观定量判定进行液化评价的原则和方法。
短句来源
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  liquefaction assessment
     ENGINEERING CHARACTERISTICS AND LIQUEFACTION ASSESSMENT OF SPECIAL SOFT SOIL AT nAODONG SEA BEACH
     胶东滨海特殊土的工程特性及液化评价
短句来源
  “液化评价”译为未确定词的双语例句
     The Application of BP Neural Network Based on MATLAB in Evaluation of Loess Seismic Liquefaction
     基于MATLAB的BP神经网络在黄土液化评价中的应用
短句来源
     Evaluation of Sand Liquefaction Potential Based on SOFM Neural Network
     基于SOFM神经网络的砂土液化评价
短句来源
     Application of BP neural network based on MATLAB to the evaluation of sandy soil seismic liquefaction
     基于MATLAB的BP神经网络在砂土液化评价中的应用
短句来源
     Application of BP Neural Network Based on MATLAB to the Evaluation of Sandy Soil Seismic Liquefaction
     基于MATLAB下BP网络在砂土液化评价中的应用
短句来源
     Evaluation of sand liquefaction under the GIS environment
     GIS环境中砂土液化评价方法
短句来源
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  liquefaction evaluation
Liquefaction evaluation discrepancies in tropical lagoonal soils
      
Detailed procedures to be used for liquefaction evaluation are presented in NCEER, 1997.
      
Her research interests include seismic response of earth structures and liquefaction evaluation.
      
  liquefaction assessment
Although some liquefaction assessment methods were proposed to evaluate the liquefaction potential of sandy soils, the conventional method based on the standard penetration test (SPT) has been commonly used in most countries and in Turkey.
      
Figure 2, as well as the thickness of the liquefiable layer, may be effective indexes for liquefaction assessment.
      
Thus the 6.5 magnitude calculated for liquefaction assessment with the PGA hazard of 0.46g is 0.2 units greater than the mean magnitude.
      
These studies suggest that code PGA and M6.5 should be used for liquefaction assessment when using the A2475 hazard.
      


In this paper, at first, based on the view of conservation of energy, we calculated the Eulor's Equation of sliding locus of gravity and earthquake landslide masses under the fixed boundary condition. Next, this equation is solved by variational calculus method. Finally, We verify this method by Saleshan Landslide being famous which is so big that is rarely seen through the whole world. Then comparing the results with the practical sliding path curve, it shows that their identical degree is very spectacular....

In this paper, at first, based on the view of conservation of energy, we calculated the Eulor's Equation of sliding locus of gravity and earthquake landslide masses under the fixed boundary condition. Next, this equation is solved by variational calculus method. Finally, We verify this method by Saleshan Landslide being famous which is so big that is rarely seen through the whole world. Then comparing the results with the practical sliding path curve, it shows that their identical degree is very spectacular. This rescarch is of important referential value to the location and number of drill holes and evaluation of saturated soil liquefaction reasoned by landside.

本文从能量的观点出发推导出了重力滑坡体和地震滑坡体在固定边界条件下滑动轨迹的欧拉方程。然后由变分原理求解该方程,得到滑体的滑动轨迹。最后以世界罕见的洒勒山大滑坡为例,验证了该方法,计算滑面与实际滑面基本平行。该方法的提出对于滑坡过后寻找滑面时钻孔孔位的布置、钻孔数量的确定、滑坡稳定性计算时的滑面形状的确定以及滑动液化的评价都具有指导性的意义。

This paper makes a discussion of the present clauses concerning appraisal of liquefa-ction in “The Aseismatic Design Standard”.It suggests the element or site soil as elementto be appraised,and puts forward the judgement target:the site element liquefactionindex A.In addition,some problems in the course of the appraisal such as selection ofthe S.P.T blow count and treatment of the soft intercalation are mentioned.

本文对现行的“抗震设计规范”中有关地震液化评价条文进行了探讨,提出了以单元体及场地土作为评价单元,尝试引出了判别指标”场地单元体液化指数 A”。另外,对在评价过程中遇到的几个问题进行了讨论,如:贯入击数基准值的选用,软夹层的处理等。

Highly dispersed ultrafine iron catalyst for direct liquefaction of coal is of interest in recent years In this paper, several matches of iron salts and sulfides were studied as catalysts for direct liquefaction of Xianfeng Coal through in-situ impregnation or mixing The result shows that the addition methods of iron salts (with or without S, Na 2S, (NH 4) 2S) have great influence on coal liquefaction Among three iron salts, the impregnated FeSO 4 (with or without sulfides) presents the best catalytic...

Highly dispersed ultrafine iron catalyst for direct liquefaction of coal is of interest in recent years In this paper, several matches of iron salts and sulfides were studied as catalysts for direct liquefaction of Xianfeng Coal through in-situ impregnation or mixing The result shows that the addition methods of iron salts (with or without S, Na 2S, (NH 4) 2S) have great influence on coal liquefaction Among three iron salts, the impregnated FeSO 4 (with or without sulfides) presents the best catalytic activity, about 40 percentage points increase in conversion when 2% catalyst was impregnated onto the coal; the impregnated (NH 4) 2S + FeCl 3 gives the worst activity; the activity of Fe(NO 3) 3 with sulfur promoter shows the similar results to the FeSO 4 in some cases The physical mixed iron salts show almost no catalytic effect on coal liquefaction

本文以不同铁盐和硫化物配对组合,采用原位担载和机械混合等方式对先锋煤液化催化剂进行了研究,并在400℃、30min、氢气初压7MPa的条件下进行了煤液化评价实验。结果表明:铁盐加入煤的方式对煤液化催化剂活性有很大影响,并且催化活性随铁盐种类的不同而变化。原位担载的硫酸亚铁(加或不加升华硫、硫化铵、硫化钠)对先锋煤液化效果最好,担载量2%结果表明:THF(四氢呋喃)总转化率比不加催化剂时可提高约40%。硝酸铁在低担载量(如1%)时催化活性低于硫酸亚铁,而较高担载量(2%和3%)时与硫酸亚铁接近。氯化铁效果最差,尤其是硫化铵加氯化铁配对,即使在较高担载量时亦无明显催化作用。机械混合的三种铁盐催化效果均很差。

 
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