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无碴轨道是高速铁路轨道结构发展方向。随着我国客运专线的快速发展,对新型无碴轨道结养护维修研究十分必要。本文介绍了无碴轨道结构的特点和检测设备,并探讨了无碴轨道结构的养护维修技术。 相似文献
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刘和能 《中小企业管理与科技》2011,(22)
近年来,随着我国高速铁路建设的全面展开,对铁路客运专线速度要求比较高,因此线路是否平顺成为铁路客运专线考虑的主要因素.桥梁干工程具有跨越河流沟壑、与既有交通设施交又互补、能实现铁路用地数量较少、保证客运专线"零沉降"、提高运营质量等特点,因此桥梁工程技术的广泛采用占有重要重要的地位,同时客运专线桥梁自身的特点也决定了桥梁工程技术的充分了解与掌握对整个铁路客运专线的运营具有重要的意义.本文基于此探析桥梁工程技术在铁路客运专线设计中的一些问题,并提出建议. 相似文献
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沥青混凝土路面是我国公路建设的主要形式之一。公路的建设所需资源与庞大的资金,如果不重视养护或养护不合理,造成的损失是难以估量的。因此,加深对沥青混凝土路面养护的认识,加强养护管理措施和提升养护技术措施,使其能更好的为我国经济建设服务。 相似文献
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沥青混凝土路面是我国公路建设的主要形式之一.公路的建设所需资源与资金庞大,如果不重视养护或养护不合理,造威的损失是难以估量的.因此,加深对沥青混凝土路面养护的认识,加强养护管理措施和提升养护技术措施,使其能更好的为我国经济建设服务. 相似文献
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客运专线铁路与普通铁路相比有很大的不同.客运专线铁路是当代高新技术大量融入的产物.需要高性能的技术装备、高质量线路、高平顺轨道、高水平的运输组织作为其支撑条件,这也是客运专线铁路工程施工与普通铁路工程施工差别存在的根本原因.由于客运专线铁路工程施工具有相对较高的技术要求.同时建设里程较长.导致其所需的物资数量庞大、涉及面广、管理跨度大,因此,对客运专线工程物资物流配送进行研究具有非常大的实践意义。 相似文献
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胡波 《中小企业管理与科技》2009,(19)
本文通过对高等级公路养护管理特点的分析,指出现阶段我国高等级公路养护管理存在的问题,从体制改革、法规建设、技术管理、养护机械化等方面,对我国高等级公路养护管理发展提出合理对策。 相似文献
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Patrick McGovern Lynda Gratton Veronica Hope-Hailey Philip Stiles Catherine Truss 《Human Resource Management Journal》1997,7(4):12-29
The prospects for devolving HR activities to the line are examined in this article. Evidence drawn from a wider study of HRM in practice suggests that, while line manager involvement is possible, their practices tend to be inconsistent in implementation and uneven in quality. A number of constraints on line management practice were identified. First, there is limited reinforcement of practice through institutional forces. Secondly, the short-term nature of managerial activity means that a greater priority is placed on the achievement of the numbers rather than the achievement of numbers through people. Finally, downsizing and delayering place tremendous pressures on the time which line managers could allow for people matters generally. These findings challenge much of the rhetoric associated with the idea of giving HRM back to the line by arguing that the quality of line management practice may distort the overall impact of HR policies. 相似文献
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基于虚拟流水线的船舶分段建造调度问题研究 总被引:1,自引:0,他引:1
针对传统船舶分段制造中出现的生产等待、时间冗余等问题,应用虚拟流水线生产模式的方法进行生产系统改造。在满足约束的前提下,建立以作业班组在生产系统中的流通时间最短为目标的班组调度模型。针对分段车间调度问题应用一种基于混合蚁群遗传算法(Mixed AntColony and Genetic Algorithm,MACGA)实现了作业班组的优化调度。最后,以某造船厂分段加工车间为例,验证了虚拟流水线模式及其调度方法可以有效的提高船舶分段的生产效率。 相似文献
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Although contextual factors act to encourage the devolvement of human resource management to line managers, recent research indicates that there is substantial potential for human resource specialists and line managers to share more effectively responsibility for their organization's human resource activities in business partnerships. The foundation for this is arguably commonality in opinions on the principles and practices of human resource activities. However, line managers and human resource specialists often have dissonant opinions on human resource management. This paper explores line manager and human resource specialists' perspectives on line manager involvement in human resource management, theoretically and empirically. The primary work comprises a survey of the views of line managers and human resource specialists on devolving a range of human resource activities to line managers in a case organization, Hilton International's UK hotels. Differences between line managers' and human resource specialists' perspectives are found in five aspects: understanding and ownership of the company's service and HR strategy; line manager involvement in and rankings of HR activities; HR specialists' support of line managers; barriers to line managers' involvement in HR activities; and the competence of line managers in HR activities. Importantly, it is found that where there are divergent views across line managers and their HR specialist in their hotel there is poor hotel business performance and, conversely, convergent views are evident in the effectively performing hotels. These findings may have resonance for other organizations in devolving human resource management to the line and developing human resource business partnerships for business performance. It is proposed that three types of line manager buy-in are central to their active involvement in HR, namely: conceptual understanding of the rationale for their involvement; implementation effectiveness through HR role clarity and capability; and affective commitment in believing in the value of their involvement in HR. 相似文献
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高科技企业经理的领导力水平直接影响着员工的积极性与创新性。作为员工直接主管的一线经理,其领导力对于激发员工的积极性和主动性、最大限度地发挥人力资源的潜能至关重要。通过对高科技企业一线经理领导情景的分析,提出了一线经理领导力的核心要素,并探讨了培育和提升领导力的具体措施。 相似文献
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随着轨道交通的发展,轨道沿线尤其是站点附近的住宅房地产的价值得到了很大的提升,沿线房地产开发亦成为城市交通领域研究的热点。文章阐述了轨道交通建设对沿线房地产的影响规律,结合长株潭城际轨道交通建设,重点提出了轨道交通沿线土地开发的对策,从而达到土地开发与经济效益双赢。 相似文献
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王春森 《中国高新技术企业评价》2007,(3):134-135,140
本文结合广州市城市快速公交系统的规划与设计,对城市快速公交系统的线路组织形式、与普通公交线路的整合、道路断面、车站四个方面对规划设计进行了探讨,为城市快速公交系统在我国的应用和发展提供借鉴。 相似文献