石灰石粉作为混凝土矿物掺合料的研究

石灰石粉是指以CaCO3为主要成分、经机械磨细的粉末状材料,石灰石粉已作为水泥混合材被广泛应用于水泥中,并形成了石灰石水泥的相关标准。本文系统阐述了石灰石粉对混凝土工作性能、力学性能和耐久性能的影响,分析了不同研究者对石灰石粉混凝土研究结果差异的原因,提出了石灰石粉应与其他矿物掺合料(如矿渣、粉煤灰)复掺的应用技术途径以及混凝土矿物掺合料规模应用过程应注意的问题。     

JP-18型集装箱偏载仪的设计

针对铁路集装箱运输的超载、偏载问题,研制可单人操作的JP-18型集装箱偏载仪。介绍JP-18型集装箱偏载仪采用单角举升形成平面三角支撑的力学模型,通过分别测量集装箱的4个角,计算出集装箱的总重及重心平面坐标。     

地铁盾构施工对邻近建筑物桩基的影响研究

在地铁工程建设中,盾构法施工得到推广使用。而当近距离侧穿建筑物的桩基时,盾构推进会对桩基周围土体及桩基产生影响,从而引起地表沉降,危及建筑物的安全。此文以深圳地铁某隧道区间盾构施工近距离侧穿一建筑物桩基为工程背景,选取桩基与隧道间距最小的断面,采用有限元软件,建立数值计算模型,研究盾构推进对桩基周围土体及桩基的影响程度,以及造成的地表沉降。研究结果表明:桩身最大侧向位移出现在隧道轴线位置附近,桩的竖向沉降量沿桩长变化很小,桩身弯矩沿桩身分布,有正弯矩区和负弯矩区,桩身轴力沿桩长逐渐增大,到隧道轴线位置时达到最大值。隧道顶正上方地表沉降最大,为12.6 mm,两侧沉降量逐渐减少,形成一个横向沉降槽。     

Research on the Design of Career Development Channel for Employees in Large State-owned Construction EnterprisesEI北大核心

Research purposes: From the factors and the principles the enterprise employees' career development design should consider, this paper studied and further discussed channel setting, the division of hierarchy and width, positions or proportional control of all levels, qualification criteria of all levels to determine, career development path management, to solve the problems of the large state-owned construction enterprise, such as narrow development channel, less promotion platform, and insufficient continuous motivation of professionals, technical operators, and general management personnel, resulting in employees no passion, no fighting will, not dedicated, difficult to bring in talents and high attrition rates of talents. Research conclusions:(1) The design of employees' career development should consider four aspects: attractiveness, operability, practicality and pertinence. (2) The design of employees' career development should follow the principles of systematic, overall and long-term development. (3) The design of career development channel should be mainly considered from the aspects of post setting, channel hierarchy and width division, and job qualification criteria. (4) The research results can provide a reference for the design and research of career development channels for employees in state-owned construction enterprises. © 2018, Editorial Department of Journal of Railway Engineering Society. All right reserved.     

液态模锻技术的研究和应用现状

本文对国内外液态模锻技术（尤其钢质液态模锻技术）的研究和应用现状作了比较系统、详细的综述。     

高职院校图书馆采编工作实践与探索

采编工作是对图书馆资源进行整合与调配的重要基础工作,对图书馆的馆藏质量、馆藏结构起着关键性的作用。针对高职院校图书馆采编工作的现状,就如何优化图书采编工作流程,提高采编工作的质量与效率,提升高职院校图书馆的整体工作水平进行了探索。     

江西全要素生产率与经济增长的实证分析

采用超越对数生产函数计算分析了江西经济的全要素综合生产率的变动状况和趋势.通过实证分析得出,改革开放后,江西省全要素生产率在逐步提高,但经济增长仍然主要依靠资本投入,经济增长方式仍然属于粗放型主导型经济增长.进一步研究江西省经济增长波动与全要素生产率的关系表明:经济增长波动的绝对幅度越大,生产率增长率则越小;反之经济增长波动的绝对幅度越小,全要素生产率增长率则越高.因此,应加强科技投入,促进技术进步,不断提高经济的增长的质量,同时也应注重经济增长的稳定性,实现资源的有效配置和经济的可持续增长.     

基于多层面的铁路沿线综合开发研究

随着铁路沿线综合开发研究工作的开始,能否促进铁路可持续发展、达到铁路与地方经济发展共赢是关键所在。从铁路和城市互动发展的高度出发,结合铁路贯穿的区域城市分布、产业结构、城市规划、站点特点等,提出了城市中心、城市边缘和新城区两种商业定位方法以及站点开发的3种方式,即:结合车站本体的综合开发,枢纽上盖综合开发,车站周边地块开发。通过分析研究和归纳总结,指出铁路沿线综合开发应多层面、多角度进行综合考虑,在逐步探索中科学有序推进,对国内铁路沿线综合开发的推广有积极的借鉴意义。     

广西道路客运企业战略转型对策研究

文章阐述了广西道路客运企业转型的必要性和紧迫性,分析了道路客运的优势,提出了道路客运企业转型的基本思路,并深入探讨了道路客运企业转型的对策。     

Lessons Learned from ICOM Initiatives in Canada and China

Practical experience derived from current and developing integrated coastal and ocean management (ICOM) initiatives around the world demonstrates that these collaborative and integrated approaches to managing coastal and ocean resources are strongly influenced by various contextual factors including political, administrative, institutional, social, economic, and cultural. A comparative evaluation of two such ICOM initiatives—off the east coasts of Canada and China, respectively—provides valuable insights into how these factors play in the development, implementation, and success of these initiatives in two different settings. The evaluation framework developed and applied in this research focuses on evaluations of governance performance and management capacity, and applies both process- and progress-oriented indicators. Key findings include: (1) The Eastern Scotian Shelf Integrated Management (ESSIM) Initiative focuses on the participatory approach that emphasizes equity and consensus among stakeholders, whereas the Bohai Sea Sustainable Development and Environmental Management (BSSDEM) Program benefits greatly from a comprehensive approach that integrates different governments/departments and bridges among stakeholders; (2) management approaches to ICOM strongly depend on the program objectives/priorities and local circumstances. Moreover, a total of thirteen recommendations are provided for the purposes of strengthening on-going programs and replicating success at a larger scale.