太子河特大桥连续梁边跨现浇段及合拢段施工方案

文章通过客运专线(32+48+32)m连续梁施工的实例,详细阐述了连续梁边跨现浇段及合拢段的施工工艺,详细分析了该施工流程的控制要点。     

铁路客专特大桥跨国道连续梁支架法施工技术

本文结合铁路客运专线某特大桥跨国道连续梁(32+48+32m)采用满堂支架法现浇施工,详细介绍了支架预压、模板安装、混凝土浇筑、预应力张拉等施工技术。     

浅谈七箱单室梁架设施工技术

广珠城际轨道顺德站特大桥,桥梁结构布置类型为(39.3+64+39.3)m直线(四线)连续道岔连续梁+15孔32m七箱单室梁+(4×32)m(四线)道岔连续梁+(32+48+32)m缓和曲线连续梁,七箱单室梁中间三榀湿接后整体架设为全国首例,其箱梁在梁场内湿接,架桥机整体提运架工艺,及箱梁滑移梁技术为全国首创。根据七箱梁现场湿接的经验及其架梁的实际工艺,结合广珠城际轨道综合工程ZH-1标顺德梁场LC31.5-740运价一体式架桥机架梁工艺,介绍七箱单室梁架设施工工艺。     

现浇连续梁施工工艺

目前,在铁路建设中,跨越河流、城市道路等障碍物的桥梁以连续梁形式为主,后张法预应力现浇连续梁凭借其施工周期短的优势在铁路桥梁建设中得到较广泛的采用.武汉天兴洲大桥南岸引桥(客运专线)跨越武汉青山区友谊大道处采用(32+48+32) m等截面连续箱梁,文章详细介绍了该段桥梁采用的分段现浇连续梁的施工工艺.     

引江济淮特大桥转体梁称重及配重技术研究

越来越多上跨铁路桥梁为了尽量减少对铁路正常运营的影响,上构梁体采用转体法施工。新建合安铁路合九联络线引江济淮特大桥主跨以(32+48+32)m转体连续梁的形式上跨宁西铁路,本文结合引江济淮特大桥转体梁的施工实例,详细阐述了在转体前对转体梁进行称重试验的原理、步骤、计算公式及配重方法,以使转体梁在转体时处于良好的平稳状态,确保了施工安全及铁路运营安全。     

铁路多线梁避免架梁横移梁施工的方案优化

川南城际铁路CN-1标架梁区段包括白马西站特大桥,孔跨布置为19×32+(4×33)m道岔连续梁+(32+3×48+32)m连续梁,0#～19#跨为四线双幅箱梁结构。由于特殊孔跨原因,梁顶截面尺寸不一致,道岔梁为6.05m～9.175m渐变尺寸,与之相接的预制箱梁无法按照常规施工方法进行架设,需要进行横移梁施工。需增加临时支墩或加长加宽墩柱尺寸、增加横移装置和横移施工费用。安全风险大、施工周期长、措施施工费用多,梁场通过方案优化变更施工方案降低了安全风险、缩短施工周期,大大降低了施工措施费用。     

电网建设工程造价综合控制模式运用的探讨

本文介绍了现代项目管理理论中目标控制模式,分析了目前电网建设工程造价管理中多种典型控制措施的特点及面临的问题;并在分析的基础上,探讨如何按照工程建设程序,在电网建设工程造价管理领域中开展"目标确定+积极跟踪+有效控制"综合控制管理。     

新安矿区深部极软岩巷道锚网喷+网壳联合支护技术应用与实践

针对新安矿区深部极软岩巷经常发生严重底臌、两帮收缩且折帮、顶板非对称下沉、巷道全断面内缩、锚杆(索)拉断、反复修护的现象,分析巷道破坏特征及原因。设计出了锚杆+金属网+喷浆+反底拱+网壳联合支护方式,即采用锚网喷初次支护,再采用网壳二次支护,主动支护与被动支护相结合,保证岩体强度,控制巷道变形。在该矿+535轨道石门应用后,工程实践表明,从根本上控制了轨道石门的非线性大变形,该支护技术有效地控制了深部极软岩巷道围岩的大幅度破坏,保证了巷道全断面的稳定,取得了良好的技术经济效果。     

复合支护技术在深水平破碎岩层中的应用

深部破碎巷道具有非线性大变形特征,单一的支护方式难以控制。矿井在进入深部开采后,软岩巷道围岩出现显著变形,围岩破碎严重,对巷道围岩稳定性的控制变得极其困难。针对平煤四矿三水平上部变电所岩性较为破碎的特点,通过理论分析和对以往成功经验的借签,提出了采用锚网喷+锚索+U型钢支架+喷浆的支护技术,加强了深部破碎岩巷的支护,较好地解决了围岩松软破碎、高变形巷道的支护难题,为其它类似条件下巷道围岩控制提供了参考。     

水质检测中滴定分析法问题探讨与研究

滴定分析法是水质分析中常用的一种方法,其中涉及到的Cl-、SO42-、Ca2+、Mg2+、CO32-、HCO3-、游离CO2、侵蚀性CO2等8项指标都可以用滴定的方法来检测其含量。通过实践,总结了这些常规指标的滴定中应该注意的一些问题。     

Incumplimiento del salario mínimo en Europa central y oriental

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.     

Multinomial distributions applied to random sampling of particulate materials

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.     

Performance appraisal and culture: practice and attitudes in Hong Kong and Great Britain

This article compares the practice of and attitudes towards performance appraisal for managerial and professional staff in Hong Kong and Britain, and considers the extent to which actual practice and employee preferences are in alignment. Findings suggest that appraisal may be more widespread in Hong Kong than in Britain. However, British appraisal tends to be more participative and to place greater emphasis on discussing objectives, development and career plans. Hong Kong appraisals appear to be more directive and Hong Kong respondents perceive a higher level of 'negative' appraiser behaviour. In spite of this, Hong Kong respondents show if anything slightly more confidence in the utility of appraisal than do British respondents. They show stronger support for appraisal's use for reward and punishment and less support for the objectives-setting and training and development uses than do the British sample. Hong Kong respondents are more likely than their British counterparts to favour involving a more senior manager in appraisal, and they are less likely to prefer more frequent appraisals. There was little evidence that Hong Kong respondents had a stronger preference for group-based appraisal criteria, although they did show more support than the British sample for the use of personality as a basis for appraisal. Overall, the suggestion is that appraisal has been adopted in Hong Kong organizations but that the practice of appraisal has been adapted to suit the cultural characteristics of the society.     

Narrative construction of expatriate experience and career cycle: discursive patterns in Finnish stories of international

Expatriate experience is not only a disconnected occasion for cross-cultural anxiety and adjustment but also an important event in the process of self-development and learning. Following this view and arguing for a discursive approach, the paper focuses on ways in which expatriates themselves tell and interpret their development and movement across expatriate career cycle. Meaning systems connecting expatriate job with previous and following work experiences in career stories of Finnish engineers and managers were identified using a combination of narrative and discourse analysis. No evidence was found of an autonomous expatriate discourse but, in contrast, expatriate career cycle was narrated using available organizational repertoires of development and career. Describing and discussing the meaning-making properties of three identified discourses - bureaucratic, occupational and enterprising - the paper emphasizes the organizational environment of expatriate experience while acknowledging the limits of these contemporary career vocabularies in addressing individual learning and change in cross-cultural settings.     

Internet professionals: job skills for an on-line age

The paper explores the increasing popularity of the Internet technology Singapore. It argues that the diffusion of Internet technology to South-East Asia would create new duties and responsibilities for human resource (HR) managers. One such duty is the identification of the skills which professional Internet staff would need to perform their work effectively in organizations. Using a triangulation research method, empirical study has identified the new professional Internet jobs which have emerged the IT industry in Singapore and the skills that professional Internet personnel require do their jobs effectively. Analysis of the findings indicates that professional Internet skills involve both technical and creative abilities and that, in explaining or defining professional Internet skills, it is necessary to use both the technical and the social conceptions of skill. This argument is based on the view that the creative skills include tacit skills so that a definition based solely on the technical conception of skill cannot capture the various dimensions of Internet skills. The implications of the research findings for human resource managers are raised.     

Cultural Economy Planning in Creative Cities: Discourse and Practice

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.     

Input/output ranges and performance: an examination of US machine tool producers

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.     

Sixty years of discrimination and diversity research in human resource management: A review with suggestions for future research directions

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.     

关于高校教学秘书工作的认识与思考

教学秘书在教学管理中起着举足轻重的作用,本文结合自己近6年从事教学秘书的工作实践和体会,阐述了高校教学秘书的工作职能和工作内容,提出了教学秘书应具备的素质,分析了日前教学秘书工作中存在的问题,探讨了教学秘书工作改进的方法与途径。     

Sister Communities: Rejecting Labels of Informality and Peripherality in Vanuatu

Some labels have dire consequences. This article takes issue with the labels commonly used to describe the physical and social location of communities living on the edge of Port Vila, Vanuatu—labels that position communities for eviction by entrenching tropes of informality and peripherality into how they are seen and represented. Such terms include informal, settlement, informal settlement, squatter and peri-urban. Based on interviews with around 100 people and two years of ethnographic engagement with urban communities in Port Vila, Vanuatu, I critique the language of policy against the lived experience of those at the urban edge. I use Bourdieu's articulation of power as an accumulation of symbolic capital that enables one to speak the world into being. I conclude that the language of policies and plans is reflective of a dominant discourse in urban studies and international aid, and non-reflective of the experience and identities of people living at the urban edge. My interviewees and interlocutors maintain their identities as sister communities—as places grounded in the formality of customary tenure, and as part of the city rather than outside it.