Application of Chinese Characters in the Design and Construction of the Badaling Great Wall Station of the Beijing-Zhangjiakou High-Speed Railway北大核心CSCD

The new Badaling tunnel is the longest tunnel on the under-construction Beijing-Zhangjiakou highspeedrailway, with the Badaling Great Wall station to be built in the tunnel. This station, which is under the Badaling Great Wall historic site, is the world’s largest underground high-speed railway station with the most complicated structure and the largest overburden and excavation area. It is therefore a representative project for China’s highspeed railway development strategy, supporting infrastructure facilities for the Beijing Horticultural Expo 2019 and the 2022 Winter Olympics in Beijing, and it is important that it be of high quality and completed safely. In the de-sign and construction of the station, the glyphs of the Chinese characters of "中",”国”,”人”and”品”are used, re-spectively, along the station route, in the rescue and evacuation mode, auxiliary adit and partial excavation, which is a way to successfully integrate the art of Chinese characters into tunnel engineering. © 2018, Editorial Office of "Modern Tunnelling Technology". All right reserved.     

昆明局集团公司卸车能力提升对策

为提升昆明局集团公司卸车能力,满足全路货运装车需求,阐述卸车能力影响因素,从系统角度构建铁路三级服务卸车系统,包括运输通道子系统、枢纽作业子系统与货运站点作业子系统.针对昆明局集团公司卸车能力紧缺的现状,分析各级服务子系统的能力,提出相应的能力提升措施,并分析其效果.经研究可知,通过实施运输组织优化、车流径路调整、货运...     

连云港港扩建对田湾核电站取水影响及措施研究

基于TK-2D软件建立了连云港港和田湾核电站海域的潮流泥沙数学模型,在对模型进行验证的基础上,对连云港港口扩建(旗台港区3.5 km规划)方案对田湾核电站已建取排水工程的影响进行了数值模拟研究,计算了取排水明渠口门附近岸滩的冲淤变化及取水口设计水深等深线的位移。针对连云港港扩建造成的影响,对田湾核电站取水工程2种措施方案(即取水明渠向东延长方案和取水明渠及拦沙防波堤同时向东延长方案)的泥沙冲淤进行了研究,并采用常用的经验公式进行了校核。研究结果表明:(1)连云港港口扩建后,己建的田湾核电站取水明渠口门附近水域形成了泥沙淤积环境,滩面将会淤高,设计的取水口门水深等深线将会外移1402 m,核电站正常取水将会受到影响,必须采取工程措施;(2)取水明渠向外延长方案延伸段会发生明显淤积,取水明渠及拦沙防波堤同时向东延长1500 m可保证取水明渠口门设计水深,取水明渠内的泥沙淤积明显减少。     

铁路局站细网络管理系统的研究与实现

针对铁路车站行车工作细则(以下简称站细)的管理现状及业务需求,提出以站场平面图为中心组织站细数据、以网络传输来实现站细报批流程、以Web-GIS技术共享站场平面图的观点.介绍基于以上观点构建的站细网络管理系统的管理流程、体系结构和功能模块以及系统在哈尔滨铁路局的应用情况.     

TDCS车站终端与TTRSIDS整合研究及系统实现

考虑到列车接发信息显示系统不能共享TDCS相关数据所产生的一系列问题,对两系统进行了整合研究,设计了数据接口系统,并在保证数据安全的前提下对其功能进行了扩充,为两者之间的数据传输提供了统一的接口标准.     

枢纽地区调度指挥辅助管理系统的设计与实现

以TMIS车站系统为基础,介绍枢纽地区调度指挥辅助管理系统的设计与实现.该系统已在合肥枢纽地区投产使用,拟在分局车务段、调度所推广使用.     

“爆刻技术”在岩壁梁部位开挖中的研究与应用

结合向家坝水电站岩壁梁部位工程地质条件和设计轮廓复杂、质量要求高的特点,施工中首次提出了“爆刻技术”这一新的爆破技术术语和理念。详细介绍该项技术的施工程序、施工方法、控制爆破设计和具体的施工工艺及爆破振动观测。施工中推行的精细化科学管理措施,确保了岩壁开挖成型质量优良,创造了光爆孔半孔率近100%、岩台平均超挖2.9cm的新纪录。     

Real time transit demand prediction capturing station interactions and impact of special events

Demand for public transportation is highly affected by passengers’ experience and the level of service provided. Thus, it is vital for transit agencies to deploy adaptive strategies to respond to changes in demand or supply in a timely manner, and prevent unwanted deterioration in service quality. In this paper, a real time prediction methodology, based on univariate and multivariate state-space models, is developed to predict the short-term passenger arrivals at transit stations. A univariate state-space model is developed at the station level. Through a hierarchical clustering algorithm with correlation distance, stations with similar demand patterns are identified. A dynamic factor model is proposed for each cluster, capturing station interdependencies through a set of common factors. Both approaches can model the effect of exogenous events (such as football games). Ensemble predictions are then obtained by combining the outputs from the two models, based on their respective accuracy. We evaluate these models using data from the 32 stations on the Central line of the London Underground (LU), operated by Transport for London (TfL). The results indicate that the proposed methodology performs well in predicting short-term station arrivals for the set of test days. For most stations, ensemble prediction has the lowest mean error, as well as the smallest range of error, and exhibits more robust performance across the test days.     

青藏铁路西格段增建二线应急工程新建托勒车站施工的回顾与思考

研究目的：新建托勒车站是西格段增建二线应急工程重点控制工程，本文通过对托勒车站施工的回顾，旨在为类似工程提供借鉴经验。 研究方法：通过介绍施工便线的优化设计和封锁施工方案、新托勒站开站和既有托勒站关闭施工方案以及通过对施工进度的分析，引发思考，进一步得出结论。研究结果：按本文施工方案，在西格段增建二线应急工程关既有站开新站类似工程施工中，我单位提前10天率先在全段安全、正点开站，为西格段增建二线按期开通奠定了良好的基础。 研究结论：（1）在海拔3000m的高原、冬季及节假日组织增建二线和既有线改建工程施工时，应在正常作业指标的基础上预留24％的作业时间安排计划工期比较合理；（2）在类似工程中设置施工便线应按永临结合的原则进行优化设计；（3）在增建二线类似工程中设置施工便线，应结合工点前后线路设计特点和现场实际情况，并为后续工程创造有利施工条件进行优化设计。     

基于CAN总线的舰船发电机节点模块电路板设计

CAN总线是现场总线的一种，它凭借卓越的特性、极高的可靠信与独特的设计，特别适合工业过程监控设备的互联。把CAN总线应用于船舶自动化已经成为控制领域的一种趋势。本文就是探讨如何把CAN总线更好的应用于船舶电站的自动化控制。