香港西部铁路无碴轨道结构及减振降噪措施

1概述 九龙铁路公司1998年10月动工修建的香港西部铁路(简称西铁)是一个服务新界西北部的大运量城市客运轨道系统,它是香港特别行政区成立以后的第一个跨世纪工程,连接新界西北部与九龙市区,目前已经基本建成,将于2003年秋季实现开通运营.西铁第一期工程包括9个车站,南起九龙南昌,途经美孚、荃湾西、锦上路、元朗、朗屏、天水围、兆康,终点为屯门站.西铁为双线线路,全长30.5 km,其中高架线路13.4 km地下线路14.7 km,地面线路2.4 km,线路走向如图1所示.     

道路桥梁的路基施工技术

随着我国经济的快速发展,道路桥梁也作出了极大的贡献,既为人们的出行提供了方便,又为经济的发展提供了有利条件,所以我国对道路桥梁的施工技术也提出了更高的要求。目前,我国道路桥梁的施工质量问题会给人们带去不小的影响,因此,我们应提高路基施工技术水平以确保桥梁的质量。本文论述了路基工程的特点和常见质量问题,并且分析了道路桥梁路基施工技术存在的问题和提出了提高其技术水平的策略。     

自动化无人空箱堆场轨道式龙门起重机节能照明系统改造

上港集团振东集装箱码头分公司自动化无人空箱堆场轨道式龙门起重机（以下简称轨道吊）采用远程操作模式,1位司机要操作2台高型轨道吊和3台矮型轨道吊,呈现“机多人少”的作业特点。在夜间多机配合作业结束后,司机往往不会主动关闭照明设备;在日间作业时,由于司机执行远程操作,难以察觉现场照明设备开关情况,导致司机常常忘记关闭照明设备。     

船舶虚拟装配集成化建模方法研究(英文)

A new method of virtual ship assembly modeling which integrates ship three-dimensional design and ship construction planning was described in this paper. A workflow model of simulation modeling based on the virtual ship assembly process was also established; furthermore, a method of information transformation between the ship three-dimensional design and ship construction plan was formulated. To meet the requirements of information sharing between different systems in the ship virtual assembly, a simulation database was created by using the software engineering design method and the relational data model. With the application of this database, the information of ship three-dimensional design, construction planning, and virtual assembly can be integrated into one system. Subsequently, this new method was applied as a tool to simulate the virtual assembly of a ship, and the results guarantee its rationality and reliability.