浅谈某高速公路沥青路面机械设备的选配

我国的公路事业进入了以建设高速公路、一级公路等高等级公路为主的新时代,目前沥青混凝土路面的施工技术较为成熟,已得到广泛的应用。在沥青混凝土路面的施工中,机械设备的合理选配对建设进度、质量及成本有着重要影响。下面我谈谈邛名高速公路沥青混凝土路面机械设备的选配。     

强盐渍土地区公路布袋灌注桩施工技术

内陆盐渍土在我国西北地区广泛分布,对工程施工制约因素很多,尤其对公路桥梁基础的耐久性影响较大,"布袋桩"施工技术解决了强盐渍土地区桥梁防腐技术难题。本文以青海省察尔汗盐湖强盐渍土地区,连霍高速柳格联络线大柴旦至察尔汗高速公路发展大道,跨青藏铁路互通立交桥梁基础施工为例,阐述了公路大直径布袋桩施工技术在强盐渍土地区的应用及其注意事项。     

公路工程施工中关键部位的施工技术探讨

自从改革开放以来,我国经济还有社会建设都迅猛发展起来,高度公路的建设也是这样。高速公路建设的快速发展除了给人们的生产生活带来更多的便利之外,施工的环境也越来越复杂,高速公路施工的技术要求越来越高,公路施工工程关键部位的施工必须重视起来。该文主要就公路工程关键部位的把控、管理以及施工技术3个方面进行简要分析,希望能对如何做好工程施工中关键部位的施工工作有所帮助。     

西北地区水资源问题及其解决途径

西部大开发是一项规模宏大的系统工程，也是西北地区经济发展的历史机遇。水不仅是西北地区经济发展的主要制约因素，而且是西北地区脱贫致富的希望所在。水资源的高效利用、有效保护和合理配置，关系到西北地区经济发展、社会进步、民族团结、边疆稳定的发展大局；关系到国土综合整治、“西部大开发”战略的实施、全面小康社会的建设、生态环境保护与修复等事业的成败。本文分析了西北地区水资源的现状及问题，讨论了西北地区水资源利用中产生的原因，提出了西北地区水资源科学利用的主要对策。     

影响公路施工相关质量因素及其控制措施

随着社会经济的发展,基础设施建设规模的全面展开,对公路建设的重视度也逐渐增加,提高公路工程的建设质量,探讨加强施工质量控制的方法,切实提高公路工程质量管理水平,值得我们专业人士去关注。高速公路施工过程中影响工程质量的因素有很多,目前主要有三个因素：设计因素、管理因素和施工因素。该文对影响公路施工的质量因素进行了分析并提出控制措施,希望该文能为高速公路路面施工的管理带来一定的启示。     

高速公路机电工程监理的探讨

机电工程在高速公路交通工程建设中占有重要地位,其施工质量直接影响工程项目的建设质量及公路的安全运行。文章简述了高速公路机电工程施工监理的技术方法,提出技术与管理的重点及难点,对保证高速公路机电工程的施工质量具有重要的意义。     

软土地基上高速公路路基扩建加宽中的关键问题

近些年来,改革开放一直在持续的深入,国民经济在很大程度上得到了发展,进而使得我国的公路建设在发展中取得了不错的成绩.然而,受到施工技术以及施工思想的影响,非常多已建成的高速公路与交通增长以及社会发展需要之间不相适应,甚至有些高速公路在发展中存在一定的缺陷.在此基础之上,本篇文章主要对于软土地基上高速公路路基扩建加宽中的...     

关于高速公路特殊路基施工技术的分析

在现代高速公路建设研究中,特殊路基施工是一项发展历史较短的领域,然而我国古代人民很早就已经进行过类似的工程处理,当前盛行的一些特殊路基施工技术可以在古代公路中寻找到其类似手段。我国近现代高速公路特殊路基施工技术的发展主要是在新中国成立之后,最快的发展时期为近30年。本文就石灰土基层施工技术在高速公路工程特殊路基施工中的应用等内容进行了浅要的探讨。     

枣庄市水资源评价及开发利用

一、水资源的构成水资源包括地表水资源和地下水资源两部分。他表水资源主要指大气降水形成的地表径流,一地地表径流一般有两部分组成,即境内径流和容水流入。影响地表径流形成的因素很多,可概括为自然因素和人为因素,在对他表水资源进行评价时,应去掉人类活动对地表径流的影响,这样所推算出的地表径流量,即通常所说的地表水资源量。据计算,枣庄市多年来平均地表水资源总量为12．8亿立方米,其中境内径流量11．6亿立方米,入境客水1．2亿立方米。地下水资源来源于大气降水和河道、水库塘坝等的渗透补给,由于地下水埋合条件和运动规…     

对公路施工技术管理的有限分析

公路施工工作贯穿公路工程施工的各个阶段，是施工企业经营管理的重要组成部分。本文结合娄涟二级公路、潭邵高速公路、常张高速公路和常吉高速公路的工程实例，就公路施工技术管理浅祈自己的见解，以期促进我省公路建设的发展，可供相关专业人员参考。     

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     

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

正~~     

Brief Introduction to “Journal of Jilin University( Science Edition) ”

<正>"Journal of Jilin University(Science Edition)"is a comprehensive academic journal in the fields of science sponsored by Jilin University and administrated by the Ministry of Education of the Peoples Republic of China.The journal started publication in 1955.The original name at starting publication was"Journal of Natural Science of Northeast People University",which was changed into"Acta Scientiarum Naturalium Universitatis Jilinensis"in 1958 owing to the name change of the university.The present journal name has