平原地区某改线新建省道干线公路技术标准及路线总体方案研究

发布时间：2018-10-26 11:05

【摘要】：技术标准及路线方案的科学确定是决定干线公路改建工程投资决策成败的关键。S247乐胡线惠民县城至里则镇段改建工程位于黄河冲积平原,虽然工程受地形限制小、展线容易、各项指标组合较灵活,但区域土地资源稀缺、路网纵横交织、村镇分布密集、环境敏感,影响因素复杂。在对项目影响区域经济社会现状及规划研究分析、交通量0D调查的基础上进行了交通量分配预测,指出并深入研究了影响技术标准选取和路线方案确定的各种因素。进而以《公路工程技术标准》(JTG B01-2003)及相关规范为主要依据,确定了本项目公路等级、设计速度,车道数、路基宽度等各项技术标准,并进行了通行能力和服务水平分析计算,预测末期各改线路段均处于二级服务水平,可以满足长远发展需要。路线方案研究过程遵循由面到带、由带到线、由浅入深、由轮廓到具体的选线原则进行多方案比较、优化与论证。首先根据项目在区域路网中的功能、作用,结合城镇布局和交通规划目标,通过多方案比选确定了路线起终点；然后在技术指标,建设规模、与城镇发展的协调性、对经济发展带动促进作用、提高路网服务水平等各个方面对多个走廊带进行深入比较研究,确定了路线基本走向；进而根据路线总体走向的转折和改建方式的不同,以路线走向转折处为节点,按照“统一标准、统筹规划、分段布置、具体定线”的思路,分段进行了优化定线,最终确定了本项目路线方案。通过对本项目技术标准的合理选择和相对最优路线方案的科学确定,不仅为后续开展土地利用、工程环境、社会影响和安全风险等评估评价提供依据,也为干线公路在区域交通运输中发挥重要作用,促进沿线经济发展和经济带发展奠定基础。同时也期待能对类似条件公路工程的投资决策起到一定的借鉴作用,更加希望的是,“统筹规划、分段布置”的转折线路选线思路能被广大公路规划、设计从业者接受和应用。
[Abstract]:The scientific determination of technical standard and route scheme is the key to the success or failure of the investment decision of the reconstruction project of the trunk highway. The reconstruction project of the section between the city and the Lize town of Huimin County on the S247 Lehu Line is located in the alluvial plain of the Yellow River, although the project is limited by the topography and easy to extend the line. The index combination is flexible, but the regional land resources are scarce, the road network interweaves vertically and horizontally, the villages and towns are densely distributed, the environment is sensitive, and the influencing factors are complex. On the basis of the research and analysis of the economic and social status and planning of the area affected by the project and the investigation of traffic volume 0D, the traffic volume distribution prediction is carried out, and various factors affecting the selection of technical standards and the determination of route scheme are pointed out and deeply studied. Based on the Technical Standard for Highway Engineering (JTG B01-2003) and related codes, the technical standards of highway grade, design speed, lane number, roadbed width and so on are determined. The traffic capacity and service level are analyzed and calculated, and it is predicted that all the revamped lines and sections are at the level of secondary services at the end of the period, which can meet the needs of long-term development. The research process of route scheme follows from plane to belt, from line to line, from simple to deep, from outline to concrete principle of route selection for comparison, optimization and demonstration. Firstly, according to the function and function of the project in the regional road network, combined with the urban layout and the traffic planning goal, the end point of the route is determined through the comparison of multiple schemes. Then in the technical indicators, construction scale, coordination with the development of cities and towns, economic development to promote the role of promoting, improve the road network service level and other aspects of the in-depth comparative study of a number of corridors, determine the basic direction of the route; Then, according to the turning point of the overall trend of the route and the different ways of reconstruction, taking the turning point of the route direction as the node, according to the idea of "unified standard, overall planning, section layout, specific alignment", the section optimizes the alignment. Finally, the project route scheme was determined. Through the reasonable selection of the technical standard of the project and the scientific determination of the relative optimal route scheme, it not only provides the basis for the subsequent evaluation of land use, engineering environment, social impact and safety risk, but also provides the basis for the evaluation. It also lays the foundation for the trunk highway to play an important role in regional transportation and to promote the economic development along the line and the economic belt. At the same time, it is also expected to play a certain reference role in the investment decision of highway engineering under similar conditions. What is more, it is hoped that the route selection idea of "overall planning, segmenting arrangement" can be accepted and applied by the vast number of highway planning, design practitioners.
【学位授予单位】：山东大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：U418.8

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