西藏林芝河谷地带地基承载力动力触探测试及应用分析

利用重型动力触探测试的原理，以西藏大学农牧学院职工周转房地基土为例进行了动力触探测试，测试结果表明：场地剖面上发育着三种河床冲积物，全场分布均匀。其中，卵石地基承载力高（fak=240kpa），是良好的基础持力层。为西藏林芝地区类似工程项目地基提供了参考依据。     

动力触探通用性指标—动阻力及其应用

简单介绍了动力触探仪的基本原理及应用．分析了目前普遍采用的动力触探指标－触探击数在应用中的不足,指出使用动阻力作为动力触探指标可以克服采用触探击数的不足,使得不同规格动力触探仪所得成果具有可比性、通用性．     

提高动力触探试验的应用水平

动力触探是人们十分熟悉的一种原位测试方法。本文着重分析了有效应用和正确分析动力触探曲线特点有关的问题。     

强夯法地基处理质量检验中动力触探方法的有效性

在山区工程建设过程中,会大量开挖山体和填沟,以平整场地。填土区地基性质不均匀,填土厚度变化大,后期沉降量大,沉降不均匀。为改善地基,通常采用强夯法对填土进行加固处理。强夯法地处理承载力检验除应用载荷试验外,尚应采用动力触探等有效手段查明加处理深度及承载力与密度随深度的变化。本文论述了强夯法地基处理质量检验中动力触探方法的有效性。     

大面积砂砾回填人工地基的应用

介绍了地基处理中的软弱地基加固与换上做法，强调在处理过程中用动力触探加强对基础的承载力的检验，保证承载力达到设计要求。     

动力触探在某高速公路碎石桩密实度检测中的应用

介绍了在某高速公路用振动挤密碎石桩处理软土路基的施工工艺，采用重Ⅱ型动力触探检测碎石桩密实度的实施方法。     

超重型圆锥动力触探在秦巴山区碎石类土桥基勘察中的应用

本文通过我们在陕南秦巴山区桥梁岩土工程勘察生产、科研相结合的实践，探索、总结了圆锥动力触探尤其是超重型圆锥动力触探在解决上述课题中的具体应用与工程地质定量、半定量评价方法。此项研究成果，不仅为秦巴山区类似岩土体的岩土工程勘察提供了有效、可行的手段与借鉴，同时也为公（铁）路相关规范填补此项空白提供了数据样本及工程实例依据。     

圆锥动力触探成果在碎石土勘察中的应用

重型及超重型圆锥动力触探试验是碎石土地基勘察的有效手段,但在通常勘察中,人们常仅把圆锥动力触探成果作为地基土求取参数的定性参考数值,有时即便用圆锥动力触探数值在规范表格中查得地基承载力及变形参数,却因数值远大于实际数值,而不得不弃用。本文从圆锥动力触探的原理、应用入手,以工程实例分析动力触探数值常常偏大的原因及处理办法,实现动力触探成果与地基土力学参数之间合理的转换关系,以推进对圆锥动力触探试验在岩土工程勘察中更好、更准确地应用。     

轻型动力触探确定粉煤灰地层承载力的可靠性分析

通过工程实例论述采用轻型动力触探法确定粉煤灰地层地基承载力的方法,并对该方法的可靠性进行分析,并就此提出了结论。     

计算动力触探修正系数的多项式拟合法

给出了用于计算动力触探修正系数的多项式拟合法.首先通过比对确定了拟合函数,指出用二次多项式拟合是考虑精确性和实用性的最佳契合点,通过数学分析介绍了双因素函数拟合的嵌套方法,并给出了重型动力触探修正系数在考虑杆长和实测锤击数条件下的二元二次多项式拟合函数及其行列式形式.通过拟合出的修正系数与规范所给的修正系数之间的误差分...     

Markedness and its Interpretation in Language Use

Language markedness is a common phenomenon in languages, and is reflected from hearing, vision and sense, i.e. the variation in the three aspects such as phonology, morphology and semantics. This paper focuses on the interpretation of markedness in language use following the three perspectives, i.e. pragmatic interpretation, psychological interpretation and cognitive interpretation, with an aim to define the function of markedness.     

Features of Women's language

Language is a means of verbal communication. People use language to communicate with each other. In the society, no two speakers are exactly alike in the way of speaking. Some differences are due to age, gender, statue and personality. Above all, gender is one of the obvious reasons. The writer of this paper tries to describe the features of women＇s language from these perspectives： pronunciation, intonation, diction, subjects, grammar and discourse. From the discussion of the features of women＇s language, more attention should be paid to language use in social context. What＇s more, the linguistic phenomena in a speaking community can be understood more thoroughly.     

低渗透非均质砂岩油藏启动压力梯度研究

理论推导与室内实验相结合,建立了低渗透非均质砂岩油藏启动压力梯度确定方法。首先借助油藏流场与电场相似的原理,推导了非均质砂岩油藏启动压力梯度计算公式。其次基于稳定流实验方法,建立了非均质砂岩油藏启动压力梯度测试方法。结果表明:低渗透非均质砂岩油藏的启动压力梯度确定遵循两个等效原则。平面非均质油藏的启动压力梯度等于各级渗透率段的启动压力梯度关于长度的加权平均;纵向非均质油藏的启动压力梯度等于各渗透率层的启动压力梯度关于渗透率与渗流面积乘积的加权平均。研究成果可用于有效指导低渗透非均质砂岩油藏的合理井距确定,促进该类油藏的高效开发。     

On Tragic Consciousness In The Works By Ernest Hemingway

As an American modern novelist who were famous in the literary world, Hemingway was not a person who always followed the trend but a sharp observer. At the same time, he was a tragedy maestro, he paid great attention on existence, fate and end-result. The dramatis personae's tragedy of his works was an extreme limit by all means tragedy on the meaning of fearless challenge that failed. The beauty of tragedy was not produced on the destruction of life, but now this kind of value was in the impact activity. They performed for the reader about the tragedy on challenging for the limit and the death.     

Achieving Unusual States of Matter Under High Pressure

正The periodicity of the elements and the non-reactivity of the inner-shell electrons are two related principles of chemistry,rooted in the atomic shell structure.Within compounds,Group I elements,for example,invariably assume the+1 oxidation state,and their chemical properties differ completely from those of the p-block elements.These general rules govern our understanding of chemical structures and reactions.Using first principles calcula-     

Exchange-Correlation and Electronic Excitation Energies from Pairing Matrix Fluctuations

We have developed an adiabatic connection to formulate the ground-state exchange-correlation energy in terms of pairing matrix linear fluctuations.This formulation of the exchange-correlation energy opens a new channel for density functional approximations based on the many-body perturbation theory.We illustrate the potential of such approaches with an approximation based on the particle-particle Random Phase Approximation(pp-RPA).This re-     

Density Functional Theory for the Response of Periodic Systems to Electric Fields Based on the Vector Potential Approach

正The electronic and nuclear(structural/vibrational)response of 1D-3D nanoscale systems to electric fields gives rise to a host of optical,mechanical,spectral,etc.properties that are of high theoretical and applied interest.Due to the computational difficulty of treating such large systems it is convenient to model them as infinite and periodic(at least,in first approximation).The fundamental theoretical/computational problem in doing so is that     

On the Thermodynamic Limit for Responses to Static Electromagnetic Fields

For molecular systems,the quantum-mechanical treatment of their responses to static electromagnetic fields usually employs a scalar-potential treatment of the electric field and a vector-potential treatment of the magnetic field.Although the potential for each field separately is associated with the choice of an(unphysical)origin,the precise choice of the origin for the electrostatic field has little consequences for the results.This is different for the     

Call for Papers

<正>"The Journal of Shanghai Normal University:Mathematics"is published by Shanghai Normal University as regular issues of The Journal of Shanghai Normal University each year from 2014 in English.The editors-in-chief of the issues are professors Yuhao Cong and Maoan Han.The Journal of Shanghai Normal University was started in 1958 with     

Journal of Donghua University ( English Edition) Contents of Volume 31

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