浅谈动车组列控车载数据分析方法

通过举例介绍了动车组列控车载数据的分析方法,对于车载、地面设备的故障查找处理提供了重要依据。     

广佛线车载ATO系统功能阐述

对珠江三角洲城际快速轨道交通广州至佛山段信号系统中的车载ATO控制系统部分进行介绍。重点介绍了ATO控制系统所拥有的功能及各项功能的实现原理。     

CRTSⅡ型板式无砟轨道水泥乳化沥青砂浆充填层质量控制技术与管理探讨

水泥乳化沥青砂浆充填层是铁路CRTSⅡ型板式无砟轨道的重要组成部分,具有配方复杂、环境敏感性高、施工工艺要求严格等特点,是无砟轨道施工质量控制的关键和难点。从砂浆充填层的功能作用、性能要求、施工工艺、常见质量缺陷、质量控制技术措施和过程管理等方面,探讨了CRTSⅡ型板式无砟轨道水泥乳化沥青砂浆充填层施工关键技术和质量控制措施等。     

小角度斜交上跨既有铁路挂篮退回及拆卸方法

沪昆客专赣江特大桥在DK557+726处跨既有向莆铁路,夹角为19°37’2″,该处采用悬臂挂篮浇筑施工连续梁,挂篮施工是较为成熟的施工工艺,但由于现场特殊的位置环境,挂篮的拆除较为困难,结合现场实际情况,着重介绍小角度斜交上跨既有铁路挂篮的退回及拆卸方法。     

现代有轨电车的排水设计

现代有轨电车无砟轨道的排水设计直接影响有轨电车的行车安全和设备设施的有效性,它与普通铁路排水设计存在差别,与市政道路排水系统既相似又有不同之处。结合工程设计经验,从有轨电车排水系统的组成、设计重现期、雨水量计算、排水沟管等方面,对现代有轨电车排水设计进行了分析与讨论。     

Research on the Mechanical Characteristics of Primary Supporting in Deep Buried Large-section Red Clay TunnelEI北大核心

Research purposes: In the New Austrian Tunneling Method, the primary supporting has the vital function as the main structure of taking the pressure of surrounding rock. In order to study the force characteristics of primary supporting in the composite lining of deep buried large section tunnel, this paper is based on Qingyang tunnel engineering in Yinchuan-Xi'an High-speed Railway. After the on-site monitoring of the process, we can find the variation law of surrounding rock pressure on the deep buried large section red clay tunnel, steel arch internal force and concrete internal force, and analyze the internal forces and distribution characteristics of the primary supporting structure. Research conclusions:(1) The pressure of surrounding rock on both sides of the large section tunnel of red clay is greater than that in the vault and the inverted arch. (2) The internal force of primary supporting structure shows a distribution pattern of big top and small bottom, and the steel arch bears most of the surrounding rock pressure. (3) It can be considered to increase the marking of steel arch frame on the side wall and vault roof, and reduce the section area of arch frame in inverted arch, so as to make full use of materials, reduce the cost and improve the reliability of lining structure. (4) This research conclusion can provide reference for the optimization of lining design and construction organization of tunnel primary support under similar geological conditions. © 2018, Editorial Department of Journal of Railway Engineering Society. All right reserved.     

CTS2轨枕式转辙机道岔电流曲线分析

阐述了CTS2转辙机的动作原理,通过对CTS2与ZD6型转辙机转换过程的比较,分析了CTS2道岔动作电流曲线的特点及在道岔维护和故障分析中的应用。     

多流制列车及其在我国的应用前景

多流制列车是指可以在两种以上供电制式下运行的列车.我国轨道交通的供电制式基本上分两种,既用于干线铁路(包括高速铁路)的交流50Hz、25KV供电和用于城市轨道交通地铁、轻轨的的直流1500V(750V)供电.     

郑西客运专线信号安全数据网网络可用度分析

针对郑西客运专线信号安全数据网总体设计方案,分析网络可用度,包括网络可靠性、安全性、实时性和可管理性。     

3D Surface Editing Based on Level-Sets

A novel method which integrates the topological flexibility of the level-set approach and the simplicity of point-sampled surfaces is proposed. The grid structure resulted from the level-set approach not only offers a wide range of powerful surface editing techniques for the point set surface editing, but also facilitates the topological change with ease. With the aid of point-based resampling, the method updates the surface shape of the point-based geometry quickly without worrying about point connectivity at all. The point set surface can also change its topology properly whenever a collision with other parts of itself is detected. The experiment demonstrates their effectiveness on several scanned objects and scan-converted models. Four examples of surface editing operations： smoothing, tapering, deforming, and Boolean operations, are presented.