鼠浪湖岛矿石中转码头工程装卸工艺关键技术分析

鼠浪湖岛矿石中转码头工程作为国内最大的矿石中转码头,可停靠40万t级的超大型矿石船。针对大鼠浪岛及周边浅滩不规整的平面形态,本文结合工程设计实例,详细分析装卸工艺关键技术。该系统具有可靠、灵活、高效,远近结合的特点,重点解决了如何将多种功能、多种流程集中转换的问题,工艺流程复杂多样,装卸设备先进合理,满足铁矿石运输船舶发展的需要,代表了最先进矿石中转码头的设计水平,对今后建设此类工程是很好的参考和借鉴。     

物流配送中心虚拟仿真设计方法

为了提高物流配送中心布局的客观性与运行效率,降低物流处理成本,分析了传统物流配送中心布局的缺点,研究了影响物流配送中心布局的各种随机因素,提出了物流配送中心布局的虚拟仿真设计方法.根据整理的物流配送中心布局实际参数,确定物流中心的规模、作业流程与平面布局,提出了配送中心布局方案,通过计算机仿真模拟了配送中心运行过程,计算了配送中心的空间利用率、作业能力、运行效率与运行成本,并评价了方案的优劣.实际应用结果表明:物流配送中心布局仿真虚拟设计方法精度高,对规划方案的模拟、优化与选择符合客观实际.     

Pedestrian traffic management of boarding and alighting in metro stations

The objective of this work is to determine, by means of simulation and experiments, the effect of pedestrian traffic management in the boarding and alighting time of passengers at metro stations. Studies were made by means of a pedestrian traffic microsimulator (LEGION Studio) and experiments at the Human Dynamic Laboratory (HDL) of Universidad de los Andes in Santiago de Chile, to obtain criteria for the pedestrian traffic management on the platform and doors of metro cars. The methodology consists of building a boarding/alighting hall of a metro car and the relevant portion of the platform in front of the hall. The simulation scenarios included the location of the vertical handrail in the hall of the car, delimitation of a keep out zone in front of the doors and the use of differentiated doors for boarding and alighting. The results of the simulation and laboratory experiments are expressed in Pedestrian Level of Service (LOS), Passenger Service Time (PST), passenger density on the vehicle and platform, and passenger dissatisfaction. Both, the simulation results and laboratory experiments allow us to give some recommendations for the pedestrian traffic management in metro systems.     

西延高速铁路引入西安铁路枢纽方案研究

在国家中长期铁路网规划中西安铁路枢纽具有重要的地位。为研究其空间布局优化问题,首先研究枢纽客运布局,缺少衔接南北向高速铁路的主客运站。其次西延高速铁路、西渝高速铁路引入西安铁路枢纽宏观走向方案,综合比较后建议采用城市东侧布线方案,银西高铁与西武高铁也从枢纽东侧连接贯通;再次研究枢纽内主要客运站布局和分工,西安北承担东西向始发和通过动车作业,西安东调整为主客运站,承担南北向的始发和通过动车作业;最后研究南北向高铁引入西安东站后,还应设置引入西安北站、西安站的联络线。结果表明:西安铁路枢纽内各条线路间互连互通、运输效能可以得到有效发挥。     

轨道车辆产品专利管理探析

阐述了在轨道车辆产品设计过程中,应做好专利侵权分析、专利回避设计、律师评估和成本评估,以及专利管理工作总结等,以发挥专利管理作用和保护创新。同时通过专利运用的正向管理,加强企业间的技术交流和促进创新。     

基于“三网融合”的江西省铁路网总体布局研究

文章基于目前铁路发展背景和江西省铁路网现状,提出“三网”功能层次和空间圈层概念,对江西省铁路网总体布局原则、“三网融合”路径进行深入研究,采用“层次分析法”厘清“三网”功能层次、空间圈层概念,对江西省干线铁路、城际铁路、市域(郊)铁路“三网”总体布局原则、融合路径进行深入研究,以大南昌都市圈为例提出大南昌都市圈“三网”总体布局方案,实现大南昌都市圈铁路出行服务多样化、差异化,旨在为江西省“三网融合”发展提供借鉴。     

Passengers’ valuations of train seating layout,position and occupancy

The layout of seating within train carriages, of which there are numerous possibilities, and also the occupancy of that seating can be expected to impact on passengers’ experiences of a train journey. However, there is very little evidence on how rail passengers value different seating experiences. On the back of exploratory research, and including attitudinal evidence, this paper provides significant and original insights into rail passengers’ preferences in this area. The primary evidence base is a Stated Preference experiment, complemented by a novel Revealed Preference exercise that uses CCTV footage to observe where rail passengers prefer to sit.The valuations, expressed as travel time multipliers, obtained from the Stated Preference exercise are generally plausible and exhibit a wide range according to the precise seating configuration, the occupancy level and the seating position within a layout. The innovative Revealed Preference analysis provides an encouraging degree of support to the Stated Preference results which, reassuringly, can themselves be reconciled with related valuations widely used in the railway industry in Britain and also the findings of the exploratory and attitudinal research. Whilst we are interested here solely in obtaining valuations, we demonstrate how they can be used in demand forecasting.     

双层客车内置分体式空调蒸发器布置设计

介绍双层客车内置分体式空调蒸发器及其相关附件布置设计中应该注意的问题,为双层客车空调系统的布置设计提供一种思路.     

基于事件检测效益的高速公路交通检测器布设方案研究

高速公路交通检测器合理布设有利于准确、快速地检测和确认交通事件发生的时间、地点及性质,进而提高高速公路管控效率.运用一种基于偏差阈值的交通事件检测算法,选取了200 m、400 m和600m等3种交通检测器布设间距,利用VISSIM仿真软件,以济青高速公路济德段为例进行验证性仿真;通过分析有无事件情况下交通参数的变化趋势,确定高速公路检测器最优布设间距,为高速公路监测系统建设提供理论依据.     

徐圩港区防波堤口门布置对航道横流影响研究*

环抱式防波堤突出于海岸,其口门航道横流可能影响船舶进出。针对徐圩港区环抱式防波堤口门不同布置方案,运用二维潮流数学模型,计算各方案的航道横流。研究结果表明：涨潮期间的航道最大横流大于落潮,涨潮横流起控制作用;各方案最大横流均出现在口门（或堤头）附近水域,出现时刻在高潮位前后;最大横流与口门宽度、口门布置形式有关;口门设置双导堤后,最大横流位置外移至堤头附近水域,向口门逐渐减小,这对口门附近水域船舶的航行是有利的。