浅析公路工程投标报价及应对措施

阐述了公路工程投标报价及应对措施。     

Why are cities removing their freeways? A systematic review of the literature

ABSTRACT

A scientific consensus has recently emerged suggesting that the dominant twentieth century paradigm of solving transportation congestion problems by building more freeways failed. The legacy of the freeway construction era is clearly visible in polluted and congested cities worldwide. To battle these ills, planning academics have been promoting more sustainable built form aligned with dedicated public/active transport provision. Partly as a result of the push coming from academia, a number of cities have sought to remove their freeways and replace the freed up space with alternate transport infrastructure, such as streets and boulevards. To discern if the transportation planning profession is currently undergoing a paradigm shift or whether freeway removal is merely a temporary fad, we have conducted a systematic review of the literature. In this article, we unpack the underlying reasons which have led some cities to removing their freeways. Results reveal that a paradigm shift has arguably not yet taken place in transportation planning. While many cities are creating human-scale and active transport spaces, currently these spaces tend to coexist alongside freeways. American cities, which were once the pioneers of freeway construction, appear to be lagging behind cities in Europe and Asia in this respect. If the current pace of freeway removal continues, it may take a few decades before the transportation planners, politicians, policy makers, and communities adopt radically different norms, methods, and goals. However, a radical approach may need to be taken sooner given alarming global warming predictions.     

东莞市莞惠公路改造工程方案设计

介绍了东莞市莞惠公路改造工程的设计方案及其设计特点、重点和难点,并对公路的旧路改造进行了分析,总结出一些经验可供类似工程借鉴。     

利用涌水的公路隧道消防供水系统

隧道涌水是施工、运营中引人关注的问题,文章以福建漳诏高速公路鼓志山隧道为例,介绍了利用隧道涌水取代深井系统取水、以高位水池重力流取代全自动加压供水的消防供水系统。     

浅谈如何对梁板施工进行监理

从质量监理的角度,结合自己的工程实践,闸述了现场的质量监理并详细介绍了桥梁工程施工中梁板质量控制的基本方法及要点。     

提高公路设计后续服务质量的对策与措施

优质完善的后服务是及对时消除设计缺陷，确保公路工程质量的重要手段之一，根据多大型公路建设项目设计后续服务的工作实践，系统分析了影响公路设计后续服务质量的主要因素，进而提提高设计后续服务质量的主要对策与措施。     

宜昌长江公路大桥工程专项质量检验评定标准编制与研究简介

结合宜昌长江公路大桥建设实际，介绍大跨度悬索桥工程专项质量检验评定标准的编制及标准编制的技术线路、主要内容及特点。     

浅议合理编制公路建设工程投资估算

公路建设工程是基础设施建设的重要部分,涉及面广、投资大,依法合规确定其工程投资十分重要.尤其是可行性研究阶段的投资估算,不仅是控制工程投资的考量目标,更是落实投资来源、分析投资效益的重要依据.此文在阐述公路建设基本程序的基础上,针对目前在可研阶段编制投资估算存在的主要问题进行分析.通过分析,提出解决存在问题的方法和措施,来保证所编制投资估算的质量和准确性.     

某高速公路渗水性边坡滑塌分析及治理

某省高速公路K24＋ 200～K24＋ 600路段工程施工为挖方路堑,开挖过程中坡体产生较大变形破坏,且坡体表面渗水严重,难以保证其稳定性.此文根据该路段地形地貌、水文地质条件和气象条件,对边坡渗水性原因进行分析.通过分析与研究,提出采用边坡支撑渗沟、仰斜式深层排水孔、渗水盲沟等地下排水措施与地表排水措施相结合的设计方案来治理该渗水性边坡.为避免施工过程中出现意外情况,并提出加固处理施工中的注意事项。     

青岛胶州湾海底隧道TSP203~+超前预报应用探讨

青岛胶州湾海底隧道工程,地质条件复杂,构造发育,洞身共穿越18条断层,岩体较为破碎,为避免工程措施不当引发的塌方和海水倒灌灾害,施工期间开展超前地质预报工作尤为必要。本隧道海底全程应用TSP203+技术,并利用专门的TSPwin物探分析软件对TSP203+成果进行解译、分析,对前端地质做出超前预报,经施工验证比较,预报结果符合现场实际情况。地下工程合理利用TSP203+技术,可以针对围岩的完整、风化、破碎情况和断层破碎带分布等做出超前预报。它是地勘工作在施工阶段的重要补充和延续,也是设计变更的重要依据。可靠的预报结果,可以为快速、及时、有效地规避隧道施工风险提供可靠的保障。