对山区高速公路总体设计的探讨

文章对山区高速公路总体设计进行了分析，探讨了总体设计的指导思想、设计原则及设计要点，提出了灵活掌握标准、降低工程造价、进行方案比选、注重环保等论点。     

牵引供电系统混合有源电力滤波器的仿真研究

为了抑制电气化铁道产生的谐波污染,本文采用了一种新型混合有源电力滤波器的拓扑结构,并分析了这种新型拓扑结构的工作原理及滤波特性.通过MATLAB仿真,验证了新型混合有源电力滤波器的滤波特性.仿真结果表明这种新型混合有源电力滤波器具有优良的滤波性能.     

日本刺激经济新对策暂难奏效

东京时间4月10日下午5时，日本首相麻生太郎宣布了由日本政府和执政党制订的新的刺激经济计划。这一计划又被称为“经济危机对策”，其56．8万亿日元的总规模和15.4万亿日元的政府投入资金均是迄今最大的。这项措施的相关方案将于本月27日提交国会审议。     

信息影响条件下考虑出行异质性的路径选择模型

出行者路径选择行为的研究对于预测城市交通流时空分布规律及维持网络经济、高效运转具有重要意义.为了探究多类型异质出行者路径选择行为的异同,研究了基于累积前景理论的多类别异质出行者路径选择模型.通过定义出行者参考点,引入考虑时间价值系数的风险敏感系数计算方法,以保证异质出行者拥有异质的风险偏好,研究分析了是否提供实时路况信息2种情境下常规通行者与通勤者路径选择行为的异同.数值算例表明,拥有较大参考点的出行者更倾向于保守地选择一条出行时间较长的道路,而其他人则更加冒险.此外,与通勤者相比,当备选方案均可以满足自身出行需求且自身参考点足够大时,常规出行者更愿意忽视风险,以获得更高的出行收益.      

Innovation and Future Application of Mechanized and Intelligentized Construction Technology for High speed Railway Tunnels: A CaseStudy of Hubei Section on Zhengzhou Wanzhou High speed Railway（高速铁路隧道机械化修建技术创新与智能化建造展望——以郑万高速铁路湖北段为例）

To ensure the safe, rapid and high quality construction of Zhengzhou Wanzhou High speed Railway, a series of exploration and innovation of construction technology, structural design and information management under the condition of large scale mechanization is used in the whole construction process. The technology includes: （1）A set of advanced geological prediction, advanced pre reinforcement technology of excavation face, mechanized construction technology of primary support, wide waterproof board trolley operation technology and intelligentized full face lining trolley of large scale mechanized construction technology are formed. （2）A classification method of surrounding rock stability is established based on the mechanized construction technology, and the design parameters of the tunnel support structure are optimized under the guidance of New Austria Tunneling Method. （3）To realize informatized management of tunnel construction, the tunnel construction management system, construction information record system, construction safety management system, quality management system of concrete mixing station and quality credit evaluation system are established. Finally, on the basis of mechanized and informatized construction, exploration and outlook of the tunnel intelligentized construction technology are given from the aspects of the dynamic intelligentized design system of tunnel support system, the intelligentized robot construction technology of tunnel support system and the intelligentized monitoring system of tunnel structure, to promote China′s tunnel construction technology.     

公路隧道运营典型风险辨识

为加强对公路隧道运营风险的辨识、改善和优化公路隧道运营安全，降低重大隧道事故对人员伤亡、隧道结构、设备和经济收益的损失，通过隧道事故调研和大数据技术，收集近些年在全国范围内发生的802起公路隧道事故，对公路隧道自身特性和隧道事故的时间、空间、类型、诱因等特征进行分析。研究结果表明： 1)外界因素对隧道事故影响较大，在高温和车流量较大的环境下，事故发生较多； 2)特长隧道和长隧道的事故数远高于短隧道和中隧道； 3)小型车是隧道内发生事故的主要车型，事故原因多是驾驶员违规驾驶，事故类型多为追尾事故； 4)火灾事故的诱因多为车辆自身故障，其中危化品泄露多为易燃液体泄露。     

体验激情 传递喜悦——记新大洲本田“CBF挑战赛赛道培训”成都站

2011年12月18日,新大洲本田在成都青羊驾校隆重举办了2011年度第三站＂CBF挑战赛赛道培训＂活动,来自四川各地的经销商与用户汇聚一堂,更有远道而来的香港BG车队的两位知名外国车手Sam（三毛）和Mark（马克）光临。活动现场气氛热烈,高潮不断。     

风险估计方法在水利工程中的应用

水利工程建设中潜藏着众多风险,对风险进行有效分析是工程顺利建设的重要保证。明确水利工程中风险的定义,系统论述了国内外采用的风险识别和风险估计方法,并给出了应用实例。     

Perspectives in Intelligentization of Tunnel Boring Machine (TBM)（对全断面隧道掘进装备智能化的一些思考）

The development status of artificial intelligence (AI) technologies, the development trend of intelligent engineering machines and the urgent national needs for the future intelligent TBMs are introduced briefly. It is pointed out that the intelligentization will be the hot spot of the tunnel engineering area and the focuses of future industry competition. The scientific challenges due to the complexity of the working environment, including state recognition and environment perception, correlation law between geological environment and operation parameters, intelligent planning and coordinated control of multi systems, are raised. In addition, the existing research foundation are analyzed and the inadequacy of the theory including environment and state perception, adaptive & dynamic control of construction parameters, multi system coordination control and multi objective optimization are obtained. At last, some thinking from the aspects of design, manufacture and operation, such as excavation perception, the adaptive dynamic control of excavation parameter condition, the excavation parameter data collection and calculation, intelligent optimization and decision making of tunneling parameters and the multi system coordination intelligent control are proposed.     

力帆摩托年度巨献 总有一款适合你

今年的中国国际摩博会注定是摩迷朋友们的一次疯狂盛会,来自国内外的摩托巨头们为这次盛会带来各自的最新产品,让摩迷朋友们又过足了一次车瘾!作为中国摩托业界的领军企业,力帆集团这次理所当然地将近期研发的产品全方位地展示在了摩迷朋友面前,除了力帆自主研发的LF250-P以