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1.
Comprehensive tests on Hangzhou intact soft clay were performed, which were used to obtain the soils’ critical response to undrained dynamic stress paths under different combinations of principal stress orientation. The different combinations included cyclic principal stress rotation (CPSR for short), cyclic shear with abrupt change of principal stress orientation (CAPSO for short) and cyclic shear with fixed principal stress orientation (CFPSO for short). On one side, under all these stress paths, samples have obvious strain inflection points and shear bands, and the excess pore water pressure is far from the level of initial effective confining pressure at failure. Stress paths of major principal stress orientation (α) alternating from negative and positive have quite different influence on soil’s properties with those in which α is kept negative or positive. On the other side, due to the soil’s strongly initial anisotropy, samples under double-amplitudes CPSR and CAPSO (or single-amplitude CPSR and CFPSO) have similar properties on dynamic shear strength and pore water pressure development tendency when α is kept within ±45°, while have quite different properties when α oversteps ±45°.  相似文献   

2.
文章试图从两方面解读连战先生深厚的民族情.这种民族情一方面来源于他的家族,连战的先祖到台湾死也不臣服清,曾祖父至父亲三代以各种形式坚持抗日及父母对他言传身教;另一方面与他早年在祖国大陆的生活经历有关,从他对抗战和日本的态度及祖国大陆寻踪等方面体现出来.  相似文献   

3.
Based on Mindlin stress solution, a numerical computational method was proposed to calculate the stresses in the ground induced by side friction and the resistance of Y-shaped vibro-pile. The improved Terzaghi’s and ЪерезанцевВГ’s methods for ultimate bearing capacity evaluation were proposed by considering the stress strength induced by friction resistance at pile head level of Y-pile. A new method to calculate the ultimate bearing capacity of Y-pile was also proposed based on the assumptions of soil failure mode at the tip of Y-pile and the use of Mohr-Coulomb soil yield criterion and Vesic compressive correction coefficient with the induced stresses in the ground. Based on the comparisons with the field static load test results, it is found that the improved Terzaghi’s method gives higher ultimate capacity, while the other two methods shows good agreement with the field results.  相似文献   

4.
The adhesion coefficient of automobile tire and road surface was analyzed and the formula about it was derived.Some suggestions about highway construction,driving safety of the drivers and the judgment of the traffic accidents were presented.The results show that the adhesion coefficient is a function with the extreme value.If there is atmospheric pressure in the tire,the load of the vehicle and the degree of the coarse on the road surface is not selected properly,it will reach the least and affect the safety of the running automobile.  相似文献   

5.
In order to study the rheological properties of red stone granular soil,a series of rheological experiments were executed on large tri-axial rheological apparatus.Under 100,200 and 300 kPa confining stress conditions,the rheological tests were carried out.These experiment results showed that the stress conditions,especially the stress level were the critical influencing factors of the rheological deformation properties.Under the low stress level(S=0.1),the granular soil showed the elastic properties,and there was no obvious rheological deformation.Under the middle stress level(0.20.8) creep curves showed the non-linear viscous plastic rheological properties.Especially,under the stress level of S=1.0,the accelerated rheological phase of creep curves occurred at early time with a trend of failure.The stress level had obvious effects on the final rheological deformation of the soil sample,and the final rheological deformation increments nonlinearly increased with stress level.The final rheological deformation increment and step was little under low stress level,while it became large under high stress level,which showed the nonlinearly rheological properties of the granular soil.The confining pressure also had direct effects on final rheological deformation,and the final rheological deformation linearly increased with confining pressure increments.  相似文献   

6.
在深入市场调查、认真采集数据和科学分析研究的基础上,从我国新一年房地产业发展的"背景和环境"、"预期和责任"、"风险和影响"、"保障和创新"等方面进行阐述和论证.  相似文献   

7.
中国加入WTO以后,知识产权的保护意识日益强化,作为知识产权范畴的专利权更是被人们普遍关注和重视.以"错案"为研究对象,运用商业秘密的有关理论以及保护商业秘密和专利权的有关法律制度,特别是从窃取商业秘密获得的专利权归谁所有的角度,对人民法院的判决进行了分析研究,指出了人民法院的判决是错误的,提出了窃取商业秘密获得的专利权归商业秘密权利人所有.这有利于人民法院公正司法,依法审判.  相似文献   

8.
日语中有着十分丰富的语气助词,其虽然不具有实际的意义,然而通过语气助词,却能够流露出说话者的心情和感受,传递出不溢于言表的隐性含义,在日常的表达中扮演着十分重要的角色.从语气助词的角度,分析总结日语在表达上所具有的特性.  相似文献   

9.
Through adding different additional water use,the compressive strength,splitting tensile strength and fluidity of recycled concrete of three aggregate combination forms were studied by experiment respectively.The experimental results show that with the increase of adding additional water use,the compressive strength and splitting tensile strength of recycled coarse aggregate concrete decrease,but that of recycled fine aggregate concrete and recycled all aggregate concrete increase firstly then decrease.When additional water use is added more 15% or 20% than that of basic ordinary concrete,the recycled coarse aggregate concrete and fine one can get pretty good fluidity.When it is added more 30%,the recycled all aggregate concrete has fluidity that is just satisfied.  相似文献   

10.
通过分析《逢雪宿芙蓉山主人》与《雪夜林边驻脚》两诗的情趣和意象,发现两诗都采用了大致相似的意象.但由于诗人各自的文化传统的差异,在两诗中所传达的情趣却不同.然而,正是由于两诗各自在情趣与意象上的契合,才创造出了各自完美的诗境.  相似文献   

11.
副名组合形式四十多年来讨论不断,需要用新的处理方法理清讨论的偏差和产生问题的原因。副词与名词的组合实际是副词的语义特征与名词语义特征的组合。语义之间的可组合性为句法结构的实现提供了基础。  相似文献   

12.
名词短语接受还是拒绝数量词的限定,能直接反映人对外界认知的机制.对于英汉语数量词对名词短语有无标记的对比研究表明人们易把在认知上凸显的事物看作有界个体事物,在语法结构上以"显眼形式"即用数量词标记,在该层面上英汉两种语言有同质性;在认知结构上不很凸现的事物易被看作无界事物,可用"不显眼形式",但两种语言在透明度上存在异质性--汉语用无标记的光杆名词来表达,透明度大;英语则依据语境而定,隐晦度大.  相似文献   

13.
通过对中国学习者英语语料库(CLEC)的搭配失误进行检索,重点探讨英语专业低年级(ST5)与高年级学习者(ST6)的名词与名词搭配失误,并对这些搭配失误进行分类探讨,发现中国英语学习者在英语写作中经常使用这几类方法,如迁移、规避、重复、替代、阐释性翻译等。通过分析,认为学习者在英语写作过程中容易将需要传达的汉语意义通过内省式"翻译"成英语进行表达,因而很容易受"源语透过效应"的影响。研究还指出其他导致搭配失误的原因,并提出有效对策。  相似文献   

14.
法语品质形容词的位置问题是一个复杂的、难有定论的问题。通过一些具体实例,分析了品质形容词前置与后置最为常见的几类情况,同时也概述了导致这些形容词位置发生改变的一些影响因素。指出了掌握这些品质形容词常用的基本规律对于法语篇章或语句的准确理解的必要性。  相似文献   

15.
"程度副词+名词"结构形式一直被认为是现代汉语的超常规搭配,但随着社会的发展,这种结构的运用越来越普遍。从单个具有典型特征的名词和意义相对的名词的不对称性两方面论述了"程度副词+名词"结构对名词的限定以及名词的语义特征。  相似文献   

16.
在矛盾修饰法中,存在着反义关系和准反义关系.矛盾修饰法的主要结构形式有形容词 名词、副词 形容词、名词或形容词 介词短语.矛盾修饰法是利用词语的反义或准反义关系,达到揭示事物对立统一的辩证关系或更深刻地刻画人物的内心活动或使文章、语句更加幽默风趣的目的.  相似文献   

17.
英汉翻译中,经常用定语、定语从句转译为状语的修辞手法。其中,前置定语具有状语意义,修饰抽象名词、普通名词,行为或带有某种特性的人等。有些定语从句形式上虽然是定语,但在作用和意义上则是状语,可表示原因、让步、目的、条件以及时间等等。  相似文献   

18.
文章首先回顾了国内诸研究工作者对科技术语的特征所做的研究及其所做的描述;文章认为名词性术语可分为两大类,即某个单独的名词可以表示一个事物或概念,某两个或两个以上的合成名词也可以表示一个事物或概念;最后讨论了科技术语的精确翻译。文章认为要精确翻译科技术语,既要注意早已约定俗成为大家所接受的译名,又要对新涌现的科技术语反复斟酌译名,并保持科学严谨的工作态度。  相似文献   

19.
英语代词能在句中代替名词,但具有不同于名词的一些特征.在使用时,特别是当它的照应对象为并列结构、集体名词和不定代词时,须注意在数、性、人称等方面的一致关系;作为代词的格,在现代英语的实际使用上,有时不完全按照代词主格用作主语、宾格作宾语的用法,而应重视英语的表达习惯  相似文献   

20.
中文中的"气"有名词及动词两种词性,而且含有多种词义,可以作为单纯词使用,也可作为构成复合词及成语的词根使用。而日语中的"气"只有名词性用法,其中在表达自然现象等词义时,与中文中的"气"有相同或近似的含义。两国语中"气"的不同词义,主要体现在中文中动词性用法以及日语惯用句中出现的表达心情\精神等词义的部分。  相似文献   

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