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1.
陈蓉 《价值工程》2014,(6):72-73
岩溶区公路路基稳定性研究的方法很多,本文采用区间模糊评判方法结合路基稳定性的特征对岩溶区公路的路基进行全面的分析,通过隶属度和权向量等方法的评判分析出适合岩溶区公路路基稳定性发展的方法,找出最终的测试结果和最终的使用方法。该方法使得岩溶区公路路基稳定性的评判更合理,更具有操作性。  相似文献   

2.
高速公路路基是高速公路的重要组成部分,其强度和稳定性决定了高速公路的强度和稳定性,通过对高速公路路基压实的影响因素进行分析,指出路基压实的关键所在,对高速公路路基的施工具有一定的指导意义。  相似文献   

3.
随着我国社会主义市场经济的不断发展以及现代交通运输行业的不断进步,对我国的高速公路路基的稳定性也提出了新的要求和挑战。高速公路路基的长期稳定性问题具有较强的综合性,文章通过对影响高速公路路基长期稳定性的因素进行分析,并在此基础上提出了几点提升路基长期稳定性的建议和措施,以期对相关人员有一定的参考。  相似文献   

4.
随着我国社会主义市场经济的不断发展以及现代交通运输行业的不断进步,对我国的高速公路路基的稳定性也提出了新的要求和挑战。高速公路路基的长期稳定性问题具有较强的综合性,文章通过对影响高速公路路基长期稳定性的因素进行分析,并在此基础上提出了几点提升路基长期稳定性的建议和措施,以期对相关人员有一定的参考。  相似文献   

5.
公路在整体的工程建设上属于一种线形的构造物,其设计不仅要参考公路地质的整体荷载量,还要考虑对公路路基设计中的稳定行进行分析,其中不乏对公路路基建设的整体的规范性要求。路基是公路路面的根本,与公路的整体的稳定性的设计是分不开的,因此,在公路的建设上,保证公路有坚实而稳定的路基状态,是路基设计过程中必不可少的任务。加强公路整体的性能,在路基设计中提高路基设计的强度与稳定性,最终减少路基病害的发生。本文依据笔者对公路路基的强度与稳定性的影响因素分析,提出一些改善之办法,最终保证路基建设的完善。  相似文献   

6.
路基是路面基础,路基强度与稳定性直接影响路面强度与稳定性,本文根据笔者多年施工经验对路堤填筑施工压实控制进行了分析与探讨。  相似文献   

7.
许霖 《价值工程》2024,(14):21-23
混凝土施工是高速公路路基项目中的重要分项工程,其技术应用效果及质量直接决定着高速公路路基的安全性及稳定性。为研究掌握高速公路路基混凝土施工技术要点,确保施工质量,文章结合实际项目,以泡沫混凝土为例,分析其施工技术要点的同时,也与普通路基填料的强度及压实度进行对比分析,最终结果显示,泡沫混凝土工后强度及压实度具有明显优势,且可在有效保障路基稳定性的同时,节省工期。  相似文献   

8.
分级填筑过程中软土路基稳定性失效的演化机制   总被引:1,自引:0,他引:1  
刘光秀 《价值工程》2014,(20):104-106
为有效解决分级填筑过程中软土路基的沉降和侧向位移问题,确保路基质量和安全稳定,本文结合河北省沿海高速公路软土路基分级填筑工程实例,采用有限元技术通过对分级填筑荷载下的软土路基变形特征展开数值模拟计算,从土体相对抗剪强度、位移增量以及塑性区开展等三个方面研究了软土路基稳定性发生失效的演化机制,研究内容对路基稳定性分析、信息化施工等方面具有一定的理论指导意义和工程借鉴作用。  相似文献   

9.
黄平 《价值工程》2015,(6):125-127
根据具体工程概况,文章分析了施工方案选择,对旧路基纵向边坡的稳定性进行了分析,并提出了线下路基土开挖与防护措施。  相似文献   

10.
浅谈公路土方路基的压实处理   总被引:1,自引:0,他引:1  
物流快速发展,公路路基路面使用质量要求不断提高.路基施工的好坏直接影响路面的稳定性及寿命的使用,而反映路基质量的关键指标之一就是压实度.文章对此进行了分析.  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.
En este estudio se analiza el incumplimiento del salario mínimo durante el periodo 2003–2012 en diez países de Europa central y oriental con salario mínimo obligatorio nacional. A partir de los datos de EU‐SILC y la metodología propuesta por Bhorat, Kanbur y Mayet (2013), se cuantifica la incidencia y magnitud del incumplimiento. Se realizan análisis de regresión sobre determinantes individuales, laborales y macroeconómicos. Aunque la incidencia permanece relativamente baja, los trabajadores a los que se dirigen las políticas de salario mínimo parecen los más expuestos a su incumplimiento. Con el tiempo, una mayor incidencia se asocia a una razón más alta entre salario mínimo y salario medio.  相似文献   

13.
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   

14.
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   

15.
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   

16.
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   

17.
While a growing body of research analyses the functional mechanisms of the cultural or creative economy, there has been little attention devoted to understanding how local governments translate this work into policy. Moreover, research in this vein focuses predominately on Richard Florida's creative class thesis rather than considering the wider body of work that may influence policy. This article seeks to develop a deeper understanding of how municipalities conceptualize and plan for the cultural economy through the lens of two cities held up as model ‘creative cities’ — Austin, Texas and Toronto, Ontario. The work pays particular attention to how the cities adopt and adapt leading theories, strategies and discourses of the cultural economy. While policy documents indicate that the cities embrace the creative city model, in practice agencies tend to adapt conventional economic development strategies for cultural economy activity and appropriate the language of the creative city for multiple purposes.  相似文献   

18.
Despite the establishment of high-tech multinational enterprises (MNEs) in Ireland since the late 1950s, the country did not succeed in closing the technological gap with most of its EU counterparts. The weak National System of Innovation (NSI), and in particular low business and government R&D levels, combined with a lack of research and technology linkages between MNEs and indigenous firms, explain these poor results. However, the Shannon region in the West of the country presents some specific institutional characteristics that could theoretically make the region a strong technological enclave. The various actors in the region - i.e. the administrative, financial, political and research institutions, as well as the business organizations - have indeed infused a new type of economic development. After a brief review of the available concepts and models articulated around these actors and their interrelationships, the paper analyses whether the Shannon region, taken as an illustrative example, mirrors a specific economic and technological localized setting. The study is based on a survey of indigenous and foreign firms.  相似文献   

19.
This article reviews discrimination and diversity research published in Human Resource Management (HRM) over the past 60 years. While discrimination and diversity are very different constructs, it is often informative to study them together, because when people recognize each other's diversity, this can result in bias, stereotyping, and discrimination. We conducted bibliographic searches for terms related to discrimination and diversity as well as a manual search through every title and abstract published in HRM over the last 60 years to assess article relevance. The search resulted in 135 research articles with 136 unique studies (i.e., samples) which are reviewed in this article. Sex and race are the demographics that have been examined the most in HRM, while religion has been examined the least. Moreover, the number of studies examining lesbian, gay, bisexual, transgender, and queer (LGBTQ) employees in the workplace in HRM has grown quickly within the past 10 years, culminating in a recent meta‐analysis. Our review looks at some of the earliest research published, the most recent research published, and the overall trends we identified in the research over the years for both discrimination and diversity articles. We then make future research suggestions and recommendations to advance the study of discrimination and diversity in the coming years.  相似文献   

20.
When sampling a batch consisting of particulate material, the distribution of a sample estimator can be characterized using knowledge about the sample drawing process. With Bernoulli sampling, the number of particles in the sample is binomially distributed. Because this is rarely realized in practice, we propose a sampling design in which the possible samples have a nearly equal mass. Expected values and variances of the sample estimator are calculated. It is shown that the sample estimator becomes identical to the Horvitz–Thompson estimator in the case of a large batch-to-sample mass ratio and a large sample mass. Simulations and experiments were performed to test the theory. Simulations confirm that the round-off error due to the discrete nature of particles is negligible for large sample sizes. Sampling experiments were carried out with a mixture of PolyPropylene (PP) and PolyTetraFluorEthylene (PTFE) spheres suspended in a viscous medium. The measured and theoretical variations are in good agreement.  相似文献   

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