指纹技术在确定交通事故驾车人中的应用

针对交通事故调查中驾车人确定的难点,提出将指纹技术应用于其中,以有力地支持事故调查的顺利完成;并对指纹技术的理论原理、操作方法、应用程序作了系统的探讨。     

混凝土路面真空处理技术

对混凝土路面中真空混凝土处理技术原理、特点进行了论述。     

北京地铁和平西桥站-北土城东路站区间渡线区隧道暗挖施工技术

文章主要介绍了北京地铁五号线和-北区间渡线区暗挖隧道断面转换施工技术,其经验可为今后类似城市地铁工程施工提供借鉴。     

Cost effective future derailment mitigation techniques for rail freight traffic management in Europe

Safe and reliable traffic management is vital for uninterrupted and successful operation of the European rail network, where mixed traffic (i.e. freight and passenger) services are run. Although rail freight derailment is infrequent, its consequences can be severe and may result in different forms of costs, including infrastructure; rolling stock; traffic disruptions; injuries and fatalities. The objective of this research paper is to conduct a cost benefit analysis (CBA) to identify cost effective mitigation techniques for efficient rail freight traffic management in Europe, by 2050. Reviewing previous derailments and studies, eight sets of derailment causes are analysed and, for each of them, sets of mitigation techniques are aimed at for their alleviation. The study finds that the highest cumulative costs of derailment are associated with ‘wheel failure’, while the lowest cumulative cost is identified for ‘excessive track width’. Regarding mitigation techniques, the lowest cumulative benefits are demonstrated for ‘track height’ interventions, whereas ‘wheel failure’ alleviation demonstrates the highest benefits, in value terms (all by 2050). In most cases, the benefit to cost ratio did not exceed 2.6; in two cases (‘track height’ and ‘rail failures’) the ratio remained below 1 – a negative outcome where cost is higher than benefit. The study suggests that the most cost-efficient interventions are those applied to ‘hot axle box and axle rupture’ and ‘spring and suspension failure’.     

高架轨道交通减振措施研究

介绍了高架轨道交通产生的振动对周围环境的影响和环境振动控制标准,提出了高架轨道交通在规划设计阶段的减振技术路线,从轨道结构和桥梁结构2个方面阐述了减振技术措施。通过室内试验方法,验证了梯形轨枕轨道系统具有良好的减振性能。     

绿色造船在13500m^3挖泥船上的应用

"新海虎"是我国迄今为止自行设计、建造的最大耙吸式挖泥船。它的完工建造,改写了我国船厂不能建造1万m~3以上挖泥船的历史。本文介绍了绿色造船在13500 m~3耙吸挖泥船的运用。     

网络信息安全问题的研究

论述了铁路企业网络的安全需求,阐述了采用密码技术和建立信息系统安全体系结构来达到保证铁路企业的网络安全和信息安全的目的.     

桥梁结构质量检查与加固技术

论述了桥梁结构质量检查的目的和方法,桥梁加固的基本原理,重点介绍了几种常用的加固技术.     

帷幕注浆技术在大水矿山治水中的应用

叙述了矿山排水对地质环境的破坏作用,结合中关铁矿工程实例,介绍了帷幕注浆方案,对工艺过程和技术参数进行了分析,对隔水效果检测结果进行了说明。     

逆向工程及其应用

主要介绍了逆向工程的定义和技术内涵,在此基础上,阐明了逆向工程在先进制造技术领域的应用,尤其为船舶螺旋桨、飞机叶轮等重要零件的加工和修复提供了数据来源.