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1.
探索我国高速公路路面施工中存在的质量通病,并且提出对应的防治策略,为我国高速公路路面质量的提高提供参考。结合现实分析我国当前高速公路路面施工中存在的质量通病,并就这些问题产生的原因加以分析,在分析的基础上,提出对应的防治策略。我国高速公路路面主要存在裂缝、不平、离析、车辙4个通病。这4个通病产生的原因不同,需要从施工与维护两个方面来进行防治,从而保证其路面质量。  相似文献   

2.
智利辉 《科技信息》2013,(26):391-391
本文根据高速公路混凝土施工管理的流程,分析质量通病的特征表现,从施工管理及施工技术等方面,探讨了解决高速公路混凝土质量通病的方法。  相似文献   

3.
高速公路混凝土质量通病分析与防治   总被引:1,自引:0,他引:1  
根据高速公路混凝土施工管理的流程,分析了其质量通病的特征表现,从施工管理及施工技术等方面,探讨了解决高速公路混凝土质量通病的方法。  相似文献   

4.
我国沥青混凝土路面近20年来的发展,让高速公路施工质量得到很大提高。但随着社会的进步和对高速公路设计标准的提高,我国高速公路质量的通病却仍未得到根除。本文中,作者对如何有效的控制高速公路沥青混凝土施工的质量问题提出了自己的看法。  相似文献   

5.
随着我国高速公路工程的快速发展,公路现浇施工的技术质量问题也逐渐受到人们的广泛关注。本文主要分析了在高速公路现浇梁施工过程中存在的主要问题和施工质量通病,进而提出了解决质量通病的几点意见和建议。  相似文献   

6.
高速公路路基的施工质量控制技术研究   总被引:3,自引:0,他引:3  
龙勇 《科技信息》2007,(11):91-91
文章针对高速公路施工质量的一些通病,分析了高速公路施工质量控制手段、以及在各阶段各环节如何控制质量的具体措施。  相似文献   

7.
董志磊  孙涛  郭自兴 《科技信息》2007,(23):108-108
文章针对高速公路施工质量的一些通病,分析了高速公路施工质量控制手段、以及在各阶段各环节如何控制质量的具体措施。  相似文献   

8.
文章针对高速公路施工质量的一些通病,分析了高速公路施工质量控制手段、以及在各阶段各环节如何控制质量的具体措施。  相似文献   

9.
提高公路工程施工质量,是公路建设的共同关注的焦点.本文就对提高公路工程施工质量的作了探讨.本文提出了要从做好前提准备工作,确保工程施工的顺利进行;抓好试验段施工,深入掌握施工理论要点;因地制宜,根据施工情况及时调整施工机械;做好施工现场的处理,预防和治理质量通病四个方面来提高公路工程施工的质量.  相似文献   

10.
目前,提高公路工程施工质量,已经成为了公路建设的共同关注的焦点。本文就对提高公路工程施工质量的作了探讨。本文提出了要从做好前提准备工作,确保工程施工的顺利进行;抓好试验段施工,深入掌握施工理论要点;因地制宜,根据施工情况及时调整施工机械;做好施工现场的处理,预防和治理质量通病四个方面来提高公路工程施工的质量。  相似文献   

11.
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.  相似文献   

12.
何延凌 《科技信息》2008,(4):258-258
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.  相似文献   

13.
王慧 《科技信息》2008,(10):240-240
Wuthering Heights, Emily Bronte's only novel, was published in December of 1847 under the pseudonym Ellis Bell. The book did not gain immediate success, but it is now thought one of the finest novels in the English language. Catherine is the key character of this masterpiece, because everybody and everything center on her though she had a short life. We can understand this masterpiece better if we know Catherine well.  相似文献   

14.
The Williston Basin is a significant petroleum province, containing oil production zones that include the Middle Cambrian to Lower Ordovician, Upper Ordovician, Middle Devonian, Upper Devonian and Mississippian and within the Jurassic and Cretaceous. The oils of the Williston Basin exhibit a wide range of geochemical characteristics defined as "oil families", although the geochemical signature of the Cambrian Deadwood Formation and Lower Ordovician Winnipeg reservoired oils does not match any "oil family". Despite their close stratigraphic proximity, it is evident that the oils of the Lower Palaeozoic within the Williston Basin are distinct. This suggests the presence of a new "oil family" within the Williston Basin. Diagnostic geochemical signatures occur in the gasoline range chromatograms, within saturate fraction gas chromatograms and biomarker fingerprints. However, some of the established criteria and cross-plots that are currently used to segregate oils into distinct genetic families within the basin do not always meet with success, particularly when applied to the Lower Palaeozoic oils of the Deadwood and Winnipeg Formation.  相似文献   

15.
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。  相似文献   

16.
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.  相似文献   

17.
Location based services is promising due to its novel working style and contents.A software platform is proposed to provide application programs of typical location based services and support new applications developing efficiently. The analysis shows that this scheme is easy implemented, low cost and adapt to all kinds of mobile nework system.  相似文献   

18.
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-  相似文献   

19.
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-  相似文献   

20.
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  相似文献   

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