大窑沟 号隧道特殊地质施工质量控制措施

简要介绍大窑沟Ⅰ号隧道在施工过程中遇到洞口段松散体围岩冒顶、Ⅲ级围岩中水平状围岩掉顶、Ⅴ级围岩坍方等特殊地质施工情况及施工处理措施,确保了隧道施工的安全及质量。     

关角特长铁路隧道防排水措施概述

文章分析了关角隧道地下水的赋存条件与分布规律,以及地下水补、径、排特征;详细计算了隧道涌水量,根据洞内、洞外、斜井的不同情况,采取了不同的防排水措施;并对搞好特长隧道施工过程中的防排水提出了建议。     

The use of GIS and relational database management systems to improve the scheduling operations of paratransit

The scheduling operations of many paratransit agencies in the United States are undertaken manually. Those customers who are eligible to travel call in their requests the day before the trip is needed. As the trip requests are received, they are entered into a list of unscheduled trips. In order to schedule these trips, the scheduler must first determine the number of drivers and shuttle buses that are available as well as the time of availability of each. The scheduler must then try to match the rides that are in “similar” areas around the “same” time to place together on the driver's schedule. As new trip requests are made, the schedulers must adjust the trips that are already scheduled to try and schedule as many trips as possible in the most efficient way.

By developing a system that would improve the scheduling system operations of, in this case, DART (Delaware Administration for Regional Transit) First State Paratransit, customers can expect to receive better service that will improve their ability to travel throughout the community. Some devices that could also improve the operations of paratransit agencies are described in this paper, such as satellite‐based Global Positioning System (GPS), radio communication systems, mobile computers, radio frequency‐based data communication systems, internet web pages, automated paratransit information systems, and card‐based data storage and transfer media. However, because paratransit systems are difficult to operate cost‐efficiently, the optimum and most cost‐efficient device must be selected. The system chosen for DART First State Paratransit includes the use of a relational database management system (RDMS) and a transportation Geographic Information System (GIS). RDMS keeps track of the database information as well as the scheduled trips and the GIS is ideal for analyzing both geographic and temporal data. This system is shown to be superior to the manual system.     

沥青路面车辙分析与防治

分析了沥青路面车辙的影响因素,提出防治车辙的具体措施.     

水泥滑模铺机在漳龙高速公路上的应用

结合实际工程施工技术问题，介绍了美国GOMACO2800型滑模摊铺机的主要性能特点、实际使用中的一些改进措施、问题的机理分析及机械操作手操作规范的探讨等。     

提高车辆减速器运用质量 满足铁路运输安全需要

对车辆减速器出口处发生脱线事故的原因进行系统分析,并提出改进的措施,通过实践验证措施的正确性,供减速器设计、维护及管理人员参考。     

巴准铁路设计阶段项目管理措施

随着铁路工程建设快速发展,在设计和实施阶段的管理还存在一定的问题。此文以巴准铁路工程设计阶段项目管理为例,利用现代项目管理理论阐述在设计阶段进行项目管理的重要性。并针对巴准铁路工程特点、难点和存在的相关风险,通过分析和风险识别,提出在设计阶段应对设计时间、工程造价、风险控制3个主要方面进行项目管理可采取的有效措施。为工程后期的顺利推进创造条件。     

浅议合理编制城市轨道交通工程投资估算

城轨交通工程是一项复杂的系统工程,专业多、涉及面广、投资大.在可行性研究阶段如何合理编制出比较准确的投资估算,此文根据《城市轨道交通工程项目建设标准》规定的投资估算的组成,就编制和控制投资估算的重点和难点进行分析.通过分析与研究,提出合理编制投资估算可采取的方法和措施,以保证所编制投资估算符合工程实际及其准确性。     

汽车电气火灾分析及防治策略研究

随着社会经济的发展和人们生活水平的不断提高,汽车的应用越来越广泛,汽车给人们的出行带来了方便和快捷,但是在我们享受着快捷的出行条件的同时,近年来,汽车火灾的发生数量也在不断的增加,在汽车火灾的诱发因素中,电气系统火灾占了非常大的比例,因此,预防和分析汽车电气火灾,应该要受到人们的高度注重。本文主要研究汽车电气火灾的分析和防治,期望能够有效的预防汽车电气火灾的发生。     

汽车维修与检测技术专业顶岗实习质量保障措施的研究

文章针对汽车维修与检测技术专业学生在顶岗实习中遇到的问题,深入分析并提出了有效的解决措施,保障了学生的实习质量。