首页 | 本学科首页   官方微博 | 高级检索  
相似文献
 共查询到20条相似文献,搜索用时 93 毫秒
1.
唐虹 《民营科技》2010,(9):216-216
随着道路运输事业的飞速发展,车型与载重的一再扩大,对公路的磨损影响也越来越严重。沥青路面以其良好的力学性能和较强的耐久性与平坦性得到了公路建设者的青睐。然而,随着道路外部承载力的不断增大和其他内在的原因,沥青路面也逐渐呈现出病害状态,如何对已经形成的病害进行有效地处理,延长公路使用寿命是施工后期公路建设者最为关心的焦点问题。  相似文献   

2.
庞兰 《价值工程》2010,29(22):60-61
对公路沥青路面常见的纵横向裂缝、沉陷、坑槽、车辙、龟裂等病害原因进行了分析,并提出了一些处理措施以解决公路沥青路面的病害问题,从而保证沥青路面的工程质量,延长沥青路面的使用寿命。  相似文献   

3.
本文通过对公路沥青路面常见病害的表现形式及其形成因素的分析,从道路设计、施工、养护管理等诸多方面提出了切实可行的预防沥青路面早期损坏的主要措施.  相似文献   

4.
本文简要分析了公路沥青路面病害的形成、危害及产生原因。  相似文献   

5.
我国公路事业迅速发展,不仅促进了交通的发展,也拉动了我国的经济效益和社会效益。沥青路面是公路路面最常使用的形式,然而随着公路通车量的逐年递增,车辆堵塞和拥挤对公路造成磨损、破坏,且沥青路面逐渐出现裂缝、坑槽等病害现象,严重影响公路的正常运行。文章对沥青路面设计及路面病害的应对措施进行了探讨。  相似文献   

6.
干线公路沥青路面常见病害处治方法浅析   总被引:1,自引:0,他引:1  
《价值工程》2013,(11):102-104
随着我国公路建设的发展和公路里程的增多,公路沥青路面出现的各类病害对公路的通行能力和服务水平的影响也日益凸显。如何有效解决沥青路面的病害问题也就成为了人们关注的焦点。本文根据笔者对干线公路沥青路面病害处治的实际经验,对各种类型的病害成因和处治方法进行了具体分析。  相似文献   

7.
现代社会经济的迅速发展,加快了公路工程的建设。同步碎石封层技术作为一种具有良好防滑性和防渗性的公路沥青路面养护技术,对于有效治愈路面贫油、网裂等公路病害,在近年来的公路养护中得到大力推广和广泛使用。  相似文献   

8.
公路是交通运输业的基础,我国因为沥青路面拥有耐久、防滑、成本低、易养护等特性,所以我国大多数的公路路面都是沥青路面。沥青路面在通车使用一段时间后,受到车辆载荷及其他因素的影响,出现了很多病害,比如裂缝、坑槽、车辙等,给行车安全带来严重的影响。所以,对沥青路面病害的预防至关重要。  相似文献   

9.
武边辉 《民营科技》2014,(5):151-151
列举了公路沥青路面裂缝的形式、形成及病害,并有针对性的提出了预防和处理的措施。  相似文献   

10.
张福庆 《活力》2006,(4):224-224
“十五”以来,沥青路面的使用,大大改善了我省的交通环境,工程质量呈现出飞越性的提高。为经济社会发展和人民生活需求提供了舒适、便利、快捷的条件。尽管如此。由于我省处于寒区地域。冻融往复、年复一年,致使沥青路面尚存诸多不如人意的病害。鉴于“十一五”国家把公路建设的重点放在县乡公路上。沥青路面普及到乡村,为了有效预防和治理病害,笔者根据工作实践和参考相关资料,谈一下沥青路面的病害及防治,以供参考。  相似文献   

11.
This paper outlines the ICT statistical developments that the ABS has undertaken over recent years. These developments have been on both the supply side (ICT industry) and the demand side (use of IT by sector). The content of ABS ICT surveys has changed significantly over the last few years and are expected to develop further in line with industry changes and emerging policy needs.
Recent developments in household collections have been the inclusion of IT use questions in the 2001 Census of Population and Housing and in various ABS social surveys such as Children's Participation in Culture and Leisure Activities. Annual business IT use surveys are now conducted and include topics such as Internet commerce and IT security. Biennial ICT industry surveys are conducted to provide data on ICT production, imports and exports, ICT industry employment, performance and structure information. An Internet activity survey is run every six months and provides regional Internet access details and infrastructure details on Internet service providers.
A major development for 2002–03 will be the compilation of an ICT satellite account. ABS intends to produce an ICT Information Development Plan to guide its future statistical development work in the ICT field.  相似文献   

12.
Several US counties and local governments have recently considered a novel solution to the foreclosure crisis. They plan to use eminent domain to compel the owners of mortgage debt—and specifically of private‐label mortgage‐backed securities—to sell the debt to the government at a price reflecting the loan's market value. The government would then restructure the debt and resell it to new investors. The plans are striking because—in contrast to both development‐driven eminent domain and the federal subprime bank bailout—they would force investors to assume asset devaluation and increased long‐term risk. Notably, the plans have emerged as an instance of financialization‐focused politics in suburbs and suburban cities of color, specifically majority‐black and ‐Latino/a suburbs. Local support for the plans, we argue, is rooted in the long‐term disinvestment of these ‘suburbs of exception', which became targets of subprime lending and eventually sites where the ‘financial exception' has been localized. But these demographic shifts, fragmentation and fiscal pressures have at the same time created a suburban political terrain in which the plans have gained their strongest political support.  相似文献   

13.
Serendipity – the notion of making surprising and valuable discoveries – plays a major role in the success of individuals and organizations alike. Previous research has established the importance of serendipity and identified important individual- and organizational-level antecedents. However, the literature has been dispersed and the boundaries of the concept have been blurry, leading to a lack of conceptual clarity and structure, and thus limiting validity and managerial actionability. Based on a systematic literature review, I synthesize existing management-related research on serendipity and explicate the emergence and composition of serendipity in the organizational context. I first identify three necessary conditions that differentiate serendipity from related concepts such as luck or targeted innovation: agency, surprise, and value. Then, I draw from the literature on sensemaking, event-based theorizing, and quantum-based approaches to management to conceptualize the process of cultivating serendipity in the organizational context as a process of enabling potentiality and materialization, and develop a multi-level theory of (cultivating) serendipity. This conceptualization contributes to our collective understanding of how, why, and when (i.e., under what conditions) organizations can leverage the value in the unexpected, which opens up fruitful avenues for further research.  相似文献   

14.
NGOs in Bangladesh have been recognized as effective change agents in the socio-economic arena throughout the world. Their contributions in micro credit, non-formal education and primary health care are widely known. NGOs play a significant role in society. NGO accountability, as a result, has become a critical issue. NGO accountability in Bangladesh has been examined here in relation to patrons, clients and themselves. Of the three relationships only accountability to patrons is in a near satisfactory state. Accountability to clients is handicapped by lack of opportunities of beneficiaries to participate meaningfully in NGO policy making. Accountability to themselves is adversely affected due to the adherence to a strictly hierarchical system and the influence of founding and charismatic NGO leaders.  相似文献   

15.
There has been much discussion regarding the possible decline and weakening of national systems of human resource management (HRM). Yet, culture and institutions are often cited as the major stumbling blocks to this outcome. Such constraints may dissipate in the analysis, particularly if ‘regional clusters’ are considered where geographic and cultural closeness and ‘openness’ to similar economic pressures exist. In such cases, it might be postulated that convergence in HRM will occur. We argue that China, Japan and South Korea represent such a cluster. This article examines these countries, to see if a degree of convergence is taking place and if it is towards an identifiable ‘Asian’ model of HRM. A model of change is presented that distinguishes between levels of occurrence and acceptance. Details of the development and practice of HRM in each country are then set out. The article ends with a discussion and implications section and a brief conclusion.  相似文献   

16.
A new Office for National Statistics was created in the United Kingdom in 1996 following a series of developments designed to strengthen the relevance and integrity of statistics. This paper describes these fundamental changes and sets out a blueprint for future progress. It also sets current developments in the United Kingdom in an historical and international context.  相似文献   

17.
We have considerable understanding of the obstacles that women engineers encounter and the reasons that they leave the field, but we know less about what enables them to remain. Adopting an interpretivist approach, this article examines how a group of British women engineers in two FTSE 100 companies account for “staying on” in their male‐dominated work settings. We delineate four specific forms of help that facilitate women's retention in the field. We argue that exposure to help leads to women developing a habitus that enables them to continue working in engineering. To conclude, we draw on our findings to outline HR practices that will facilitate supportive relationships in the workplace and pave the way towards developing more positive organisational climates.  相似文献   

18.
杨明 《价值工程》2012,31(7):16-17
物流业经过诸多年的发展目前已经成为最热门的行业之一,物流企业的注册数量也与日俱增,达到前所未有的规模。毋庸置疑,任何企业都希望自己迅速做强做大,并成为真正现代物流企业的典型代表,要实现这一目标一个首要问题就是要解决现代物流企业的发展观问题。  相似文献   

19.
丛广英  乔炜君 《价值工程》2010,29(6):245-245
大体积混凝土的裂缝问题是实际工程中长期困扰工程技术人员的问题,其控制技术的研究是混凝土结构研究的热点问题,具有重大的学术价值和潜伏的工程背景。  相似文献   

20.
This paper focuses on the fashion industry, one characterised by issues such as dramatic shifts in the scale and power of major retail buyers in the market, the advent of retailer own brands, and the nature of sourcing and supply chain decisions, issues that are increasingly global in nature. The aim of this research is to explore the nature of relationships between UK high street multiple fashion retailers and their contracted suppliers, many of whom are entrepreneurial firms by most definitions of the term. Four core themes emerge from the literature and provide a framework for the research, namely, power, process, partnership, and people. The research approach was qualitative, and conducted over a period of twelve months. The paper ends with an agenda for future research.  相似文献   

设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号