无砟轨道松软土路基加固与沉降控制试验研究

无砟轨道线路对工后沉降控制要求十分严格,路基工程工后沉降主要为路基铺轨完成后地基的残余沉降,厚层松软土路基沉降控制是路基建设中的重点与难点。结合路基不同部位要求,采用桩板结构、桩筏结构及桩网结构联合超载预压进行地基加固,通过典型工点进行现场试验测试与验证,有效控制了路基工后沉降,整个路段内纵向沉降较为均匀,区段路基满足铁路高速、安全、平顺的运营要求,加固措施有效可行。     

关于改进高校辅导员考核工作的思考

改进高校辅导员考核工作对加强高校辅导员队伍建设具有重要意义。文中深入分析了当前高校辅导员考核工作主要存在问题和难点,并有针对性地提出了改进辅导员考核工作的思路与对策。     

技能大赛问题分析与办赛实施对策

技能大赛作为职业教育的组成部分,在职业教育发展中始终起着积极的促进作用,在国家将职业教育作为类型教育大力发展的战略机遇期下,其重要性越发凸显.全国性的技能大赛获奖对参赛师生和所在院校都具有极高的附加值,因此,各个省区市相关院校都在全力以赴争取冲进国赛.本文简单介绍了职业院校技能大赛的现状,充分肯定了其在推动实践教学方面...     

拆除旧桥顶进新桥施工技术

结合怀柔区迎宾南路与京承线相交处的旧桥改造,介绍采用切割法切割既有U形铁路混凝土桥、D24军便梁加固既有铁路以及桥体顶进施工的工艺,为类似的工程提供一定的借鉴。     

基于装备使用特点的备件优化及评估方法研究

备品备件数量常由装备使用次数和装备自身的可靠性水平来决定,文章结合长期处于贮存状态装备的使用特点,考虑贮存状态下装备不需要备品备件的一般情况,建立了该类装备的备件需求量模型。首先在分析了该类装备使用特点的基础上建立了备品备件需求量模型。然后根据数据特点,给出了该模型参数的矩估计。最后通过数据模拟,验证该方法的可行性。     

Investigating links between transport disadvantage, social exclusion and well-being in Melbourne - Updated results

This paper updates results of an international study aimed at quantifying the links between transport disadvantage (TD), social exclusion (SE) and well-being (WB) in Melbourne, Australia. The study extends knowledge associated with SE and transport by quantify social and behavioural implications of lack of public and private transport and the nature of the social WB benefits associated with improving services.Study aims and methodology are outlined. Recent findings covered relate to car ownership on the urban fringe, patterns of transport disadvantage, the analysis of time poverty related to transport disadvantage, measuring the economic value of additional mobility and use of a Structural Equation Model (SEM) to relate WB and SE to TD and a series of explanatory factors.Overall results suggest that those without a car on the urban fringe adjust well with their circumstances by living close to activity centres. They demonstrate sustainable choices, trading off budgets and home location to balance mobility and accessibility. Poorer households with high car ownership value mobility and cheaper more remote fringe dwellings but demonstrate numerous strategies to reduce high car costs which are acknowledged as a significant burden. Analysis identifies 4 key types of transport disadvantage including a ‘vulnerable/impaired’ group which should be of much greater concern for targeted policy than others due to poor scoring on SE and WB scales. The economic value of new mobility is also explored with results suggesting $AUD 20 per average new trip which is four times larger than conventional values for generated travel.Analysis has also suggested that transport disadvantage can relate to socially advantaged as well as socially disadvantaged groups through time poverty. This was found to be an important mitigating factor when relating TD to WB. A statistically reliable structural equation model is developed suggesting the SE-WB link is strong (−.87) with a modest link between TD-SE (.27).Areas for future research in the project are also summarised.     

港池坞门的制造方案及合拢工艺

文章阐述了坞门制造的多种方案,充分合理使用船台的优质资源,提高生产效率,有效保证工程质量精度。浮船坞内的"一次进坞,落差坐墩"大合拢,更是一种新工艺的探索,为类似工程积累经验。     

芜湖奇瑞公司商品汽车滚装码头工程设计

针对商品滚装船船型多样及水位差大等特点,在芜湖奇瑞公司商品汽车滚装码头工程设计中提出一种新型商品汽车滚装码头型式,对内河大水位差滚装码头的建设有一定的参考价值.     

城市轨道交通项目前期工作管理理论与实践

从项目周期理论出发,将基础设施项目管理划分的项目前期工作时期、建设时期和生产运营时期,细分为规划、立项、评估、设计、开工、施工、竣工、投产运营和维护等8个阶段进行研究,提出城市轨道交通项目前期工作管理过程,从长沙市城市轨道交通项目管理实践中总结出特大型项目管理的做法.     

高校基金会的管理与投资

以中山大学基金会为例,分析高校基金会的运作,认为当前基金会存在会计核算体系不够完善、管理体制不够健全、从业人员不够专业、投资环境和人文意识不够配套等问题,并提出了一系列改进的意见和建议,包括充分披露会计信息、争取海外捐赠、鼓励院级基金和专项基金、留本基金的投资运作等.