土工格室植草护坡的稳定性分析

对土工格室的特点和抗滑稳定性的分析表明，在安全系数不小于1.5的条件下，土工格室是一种有效的边坡防护形式。土工格室护坡主要有平铺式护坡和叠砌式护坡两种形式。     

悬浮结构铁路信号设备雷击损坏的原因分析及防护方法探讨

很多铁路信号系统,特别是轨道电路的发送、接收和CAN总线均采用悬浮结构。为了防止出现第三轨问题,雷电防护方案中只加装差模(横向)防护用SPD,共模(纵向)防护是靠系统绝缘特性来承担。可是在实际应用中出现雷击损坏现象多是因为缺少共模防护。通过科研试验数据和现场雷害调查结果,综合分析该类悬浮系统共模雷击损坏特点,并针对防止出现第三轨问题,提出新的共模雷电防护方案供大家参考。     

船上实施听力保护的技术要求及应用

船舶噪声对船员的听力损伤是众所周知的,甚至发生部分船员的永久性听力损失。国际海事组织第91届海安会通过了新的《船上噪声等级规则》,围绕实施噪声规则,分析了听力保护的技术要求和正确选用听力保护器的技术依据,探讨了佩戴听力保护器对语言交流和感受听觉信号造成的影响。强调必须开展听力损伤的风险评估,并对识别听力损伤的特殊风险因素提出了建议。     

Evolution of coastal hazards policies in the United States

The ocean and Great Lakes coasts of the United States are experiencing widespread economic and environmental damage from coastal flooding and erosion. During this century, public response to such coastal hazards has evolved haphazardly in response to particular disasters. Over time, however, the range of response has broadened as research has helped to refine public understanding of physical coastal processes, and specific disasters have been studied before longer term forms of institutional response have been formulated. Earlier reliance on engineered shoreline protection has been supplemented by beach nourishment, flood insurance, building and land use regulations, coastal zone planning, and other approaches. This article interprets the evolution of such public policy innovations in terms of a model that depicts the interaction of spatially differentiated systems of physical, legal, and cultural phenomena in the coastal context.     

Privacy protection method for fine-grained urban traffic modeling using mobile sensors

With the ubiquitous nature of mobile sensing technologies, privacy issues are becoming increasingly important, and need to be carefully addressed. Data needs for transportation modeling and privacy protection should be deliberately balanced for different applications. This paper focuses on developing privacy mechanisms that would simultaneously satisfy privacy protection and data needs for fine-grained urban traffic modeling applications using mobile sensors. To accomplish this, a virtual trip lines (VTLs) zone-based system and related filtering approaches are developed. Traffic-knowledge-based adversary models are proposed and tested to evaluate the effectiveness of such a privacy protection system by making privacy attacks. The results show that in addition to ensuring an acceptable level of privacy, the released datasets from the privacy-enhancing system can also be applied to urban traffic modeling with satisfactory results. Albeit application-specific, such a “Privacy-by-Design” approach would hopefully shed some light on other transportation applications using mobile sensors.     

柔性绿色防护在祁临高速边坡养护中的应用

介绍祁临高速路堑边坡病害处治中舍弃了传统的刚性防护,而采用的一种新型柔性绿色防护类型。从经济效益、社会效益、施工技术特点等方面论述了这种新型环保防护形式的优越性。该工程坚持环境保护和经济建设同步发展的方针,以护坡、绿化、环保、和谐为主题,围绕以人为本的宗旨,科学设计,使之成新型柔性护坡的典范。     

就地水泥冷再生施工技术在路面大中修养护中的应用

结合国道202线吉林省磐石段路面维修工程,对冷再生施工工艺及其性能指标进行了探讨,为就地冷再生技术在吉林省的推广应用提供参考经验。工程实践证明,旧路面就地冷再生技术具有成本低、工期短、节约材料、不损坏路基、消除污染保护环境、交通安全等特点,对于节约自然资源、保护生态环境具有极大的意义。     

公路环境保护监理的工作要点探讨

基于环境保护的重要性,阐述了公路工程环境保护监理在施工准备阶段、施工阶段、缺陷责任期阶段监理工作的要点,以及采取的主要措施.     

公路建设项目中降雨因子对土壤流失量的影响分析

降雨因子对水土流失量起着决定性的作用。通过在汉十高速公路上设置实验小区，用径流小区法进行了水土流失监测，并根据数理统计原理，对水土流失量及降雨量的数据进行分析，建立回归方程，研究了降雨因子与水土流失量之间的关系，并对其结果从溅蚀和径流冲刷两个方面进行了理论分析。     

山区公路建设生态保护和水土保持

对山区公路建设生态保护和水土保持作了比较深入地分析与探讨,总结归纳了山区公路施工、营运期生态保护和水土保持的重点与措施,并对国内外公路建设生态保护进行了比较。