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 60 毫秒
1.
盛延喜 《价值工程》2015,(22):26-27
本文介绍了石化企业起重机作业伤害事故发生的形式和特点,分析了起重机作业伤害事故发生的原因和事故发生后的处理措施,有针对性地提出了相应的预防对策,有利于提高起重机作业的安全系数,减少事故的发生。  相似文献   

2.
塔式起重机使用中的误区   总被引:1,自引:0,他引:1  
塔式起重机是建筑施工和设备安装的重要施工设备,特别是在现代高层建筑施工中地位更加突出。同时作为特种作业设备,其安全问题也日益突出地摆在我们的面前。塔式起重机使用中的种种误区往往是事故隐患产生的重要原因,因此不能轻视。塔式起重机安全使用中的误区有以下几方面:1误区一:电气问题不会造成塔式起重机事故通常认为导致塔式起重机事故的是机械结构上的问题,因而放松对电气部分的检查。从表面上看,塔式起重机发生最严重事故的如倒塔、折臂等都是塔身、臂杆等的钢结构部分毁坏,以及销轴、连接螺栓等断裂所导致,但是往往这些也与电气上…  相似文献   

3.
为了预防使用桥式起重机时发生事故,根据国家有关法律、法规、标准,从综合管理、设备周期管理、作业环境管理、应急管理4个方面,对起重机的标准化安全管理模式进行阐述,以指导桥式起重机的使用安全管理,实现安全管理的标准化,也可供安全评价人员、职业安全健康管理体系审核人员参考。  相似文献   

4.
冯涛 《科技与企业》2014,(21):92-92
随着发展迅速的城市建设,高层建筑成为主要发展方向,塔式起重机也因此成为高层建筑建设不可缺少的设备并得到了广泛的使用。塔式起重机也属于《特种设备安全法》规定的特种设备。但是在高层建筑施工作业中事故时有发生。究其原因塔身垂直度是塔式起重机能否安全使用的关键因素,本文对其要求及其测量做出了详细的论述。  相似文献   

5.
塔式起重机是高层楼层施工过程中不可或缺的吊运起重设备。文章以塔机安装顶升架节过程中发生伤人事故为例,从塔式起重机的顶升结构件和安装情况分析了事故发生的原因,同时对塔机作业情况进行鉴定分析,由此提出了预防事故发生的安全与管理措施,避免类似塔机事故的发生。  相似文献   

6.
公路施工企业的生产活动具有露天作业、劳动密集、工期较长等特点,为减少安全生产事故的发生,降低生命财产的损失,保证其生产活动的平稳有序,安全生产管理显得尤为重要。本文首先说明了公路施工企业安全生产管理的范畴,然后分析了目前公路施工企业在安全生产管理中存在的一些问题,最后有针对性地提出了一些安全生产管理方面的建议。  相似文献   

7.
起重作业是一种事故多发性的作业。据统计,在机械、冶金、建筑、海港和铁路等产业中,起重机伤害事故占这些产业事故的30%左右,占总事故的7%~12%,这些事故的发生造成了严重的人员伤亡和经济损失。起重机作业过程中造成的伤害事故,究其原因不外乎两种,即人为因素和设备因素。人为因素主要有未履行职能、错误地履行职能、执行未赋予的分外职能、按错误  相似文献   

8.
龙门起重机在非工作状态,受风力作用发生倾翻是一个长期没有彻底解决的问题。在现有一些资料介绍中,龙门起重机在非工作状态的稳定性,一般是以自重所引起的力矩与最大风力所产生的力矩之比K来表示。在大量的龙门起重机风害事故中,以单梁箱型龙门起重机受风力作用发生脱轨、倾翻的情况最多,而在原地倾翻的例子还很少。因此对于露天作业的龙门起重机,单  相似文献   

9.
高超 《价值工程》2021,40(1):119-120
依托位于海拔2150m的S446线黑水县扎窝至红岩段隧道新建工程项目黑水河大桥施工过程中,采用安装在黑水河中的塔式起重机,配合船只进行吊运作业,从而满足使用需要.本文针对塔式起重机倾覆事故,应用事故树分析方法,从人、机、料、法、环进行重要危险因素分析,并提出具有针对性、可操作的对策措施,确保施工过程安全受控,防止安全生产事故发生.  相似文献   

10.
塔式起重机是现代施工中必不可少的关键设备,是施工企业装备水平的标志性重要装备之一。文章以塔式起重机安装架节时发生伤人事故未来例,从塔机顶升结构件及连接部位、安装情况找事故原因,并对塔机作业情况进行分析,提出了相关预防事故发生的安全技术与管理措施,避免类似事故的发生。  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.
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   

16.
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   

17.
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   

18.
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   

19.
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   

20.
The Early History of the Cumulants and the Gram-Charlier Series   总被引:2,自引:0,他引:2  
The early history of the Gram-Charlier series is discussed from three points of view: (1) a generalization of Laplace's central limit theorem, (2) a least squares approximation to a continuous function by means of Chebyshev-Hermite polynomials, (3) a generalization of Gauss's normal distribution to a system of skew distributions. Thiele defined the cumulants in terms of the moments, first by a recursion formula and later by an expansion of the logarithm of the moment generating function. He devised a differential operator which adjusts any cumulant to a desired value. His little known 1899 paper in Danish on the properties of the cumulants is translated into English in the Appendix.  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