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1.
《价值工程》2017,(14):134-135
通过对天津地铁4号线多伦道站地下连续墙施工技术的探讨,系统地介绍了地下连续墙的导墙、泥浆制备、挖槽、钢筋笼加工与安装等施工工艺及要点,以及地下连续墙可能出现的问题事故进行预防和处理措施,保证工程顺利安全进行,并且为同类工程及学术研究提供案例及参考价值。  相似文献   

2.
本文主要介绍地下连续墙的导墙施工、槽段开挖、泥浆制配和应用、清底排渣、钢筋笼制作和安装、混凝土浇筑及接头技术处理措施等施工工艺。  相似文献   

3.
本文主要介绍地下连续墙的导墙施工、槽段开挖、泥桨制配和应用、清底排渣、钢筋笼制作和安装、混疑土浇筑及接头技术处理措施等施工工艺.  相似文献   

4.
蒋琳娜 《民营科技》2014,(12):88-88
介绍地下连续墙类型,分析地下连续墙施工优缺点,探讨地下连续墙施工的工序原理,最后从导墙浇筑施工、泥浆的配置与处理、成槽施工、清理槽底、钢筋笼制作与安放、地下连续墙接头施工等几个方面分析其在房屋建筑中的具体应用。  相似文献   

5.
陈会良 《科技与企业》2013,(23):223-223
南京市纬三路过江通道采用地下连续墙作为围护结构,地下连续墙的壁厚为1.2m、1.0、0.8m三种规格。连续墙施工使用液压抓斗挖槽机及跳槽法施工工艺,即采用三序成槽施工,系统地介绍地下室连续墙在围护工程中的施工实施,为同类工程提供参考借鉴。  相似文献   

6.
《企业技术开发》2016,(25):40-42
普瑞大道站是地铁4号线的第一个站,为地下二层岛式站台车站,采用明挖施工。由于地质条件复杂,车站围护结构的地下连续墙施工时本车站施工的重难点。文章对该车站地下连续墙导墙施工方案进行了研究,力求为车站安全施工提供技术支持,并为类似工程提供技术参考。  相似文献   

7.
李福占 《价值工程》2010,29(3):188-189
地下连续墙工程常见质量通病形式有:导墙变形或破坏、槽壁坍塌、漏浆、钢筋笼吊放不下、钢筋笼上浮、槽段接头渗漏水等。本文分析了地下连续墙工程的几项常见质量通病及预防措施。  相似文献   

8.
随着地下连续墙施工技术的不断应用,地下连续墙防水设计的关键部位接缝及墙趾注浆技术也得到了较大提高.本文从于家堡站房工程地下连续墙接缝注桨机墙趾注浆的目的、规范要求、工艺流程等方面概述了两种注桨技术,以指导我们的施工工作.  相似文献   

9.
本文介绍沿海城市建设中桩墙组合+水泥土内插钢管加固土台设计、施工要点;通过工程应用实例介绍一种实用新型技术施工工艺,解决了在旧城改造建设中房屋建筑地下深基坑支护中地下连续墙+锚索、排桩+对撑梁两种设计方案无法施工的难题。此施工技术既具有施工方便、施工效率高、加快工程进度及保障基坑安全的优点,又具有节约成本、工程质量好的优点,能为企业带来良好的经济效益和社会效益。  相似文献   

10.
《价值工程》2016,(19):150-152
地下连续墙是一项质量要求高,施工工序多,并须在短时间内连续完成一个槽段的地下隐蔽工程。地下连续墙以其施工时振动小、噪音低、整体性强、墙体刚度大、耐久性好、抗渗效果好、施工效率高、施工对周边地层扰动小等一系列优点,在深基坑建设工程中得到了较为广泛的应用。本文针对昆明·同德广场A7地块项目地质条件良好、地下水位高、周边建筑物距离较近、地下障碍物多等特点,对地下连续墙主要施工工艺进行阐述,从施工组织设计、质量控制等方面进行分析,为类似工程提供借鉴。  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.
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   

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.
Based on a review of established U.S. management journals (1995–2003), six schools of thought are identified within the Anglo-American M&;A research: “Capital Market”, “Principal/Agent”, “Industrial Organization”, “Organizational Behavior”, “Human Resources” and “Strategic Management”. The literature review shows that the definition of M&;A success, the methods applied, and insights from empirical research differ according to the respective school of thought. Empirical studies focus on the resource combinations of merger partners, the specific circumstances of merger negotiations, and on integration management as antecedents of merger performance. Unfortunately, empirical findings have not yet provided reliable explanations for M&;A success. Based on the current state of Anglo-American M&;A research, the authors discuss implications for business practice, identify research gaps, and propose areas for future research.  相似文献   

18.
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   

19.
We examine the general equilibrium repercussions associated with the introduction of new technologies, using the generalized Leontief system that allows technological substitutions. We show that an untested introduction of cost-increasing technologies in any industry may result in creating a non-productive technological structure that does not satisfy the Hawkins-Simon condition, following the autonomous dynamic adjustment process with structural transitions in the economic system. Therefore, we propose a practicable control scheme of introducing cost-increasing technologies that strictly avoids the creation of non-productive structures in all periods of structural transition, using the available information on the ex ante technological structure.  相似文献   

20.
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   

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