【作者】 刘晓佳；

【导师】 何兆益；

【作者基本信息】 重庆交通学院 ， 道路与铁道工程， 2004， 硕士

【摘要】 本论文针对于西部地区县乡公路的修筑技术,以交通部西部科研项目“低造价县乡道路修筑技术研究”的课题为依托,对西部地区县乡公路沥青路面的典型结构进行了系统的研究。首先,通过对西部地区县乡公路的路况、结构形式、使用性能等方面的大量调查,分析总结出西部地区县乡公路的主要结构形式、使用性能及主要破坏类型等,并对破坏原因进行分析,为建立典型结构提供依据。其次,在对西部地区县乡公路的交通量做了大量调查的基础上,对西部地区的交通量特性、轴载特性、累计当量轴次的范围作了深入的分析和研究,从而划分出西部地区县乡公路的交通等级。再次,通过调查分析和试验研究,对西部地区县乡公路的路基强度特性和路基强度范围进行了研究,划分出西部地区县乡公路的路基强度等级。同时,对西部地区县乡公路的路基、路面材料进行了研究,尤其对地方性基层材料如固化土、稳定土的路用性能做了大量的分析,确定出路基、路面材料及设计参数。最后,在得到了典型结构的各项设计参数的基础上,借鉴当地县乡公路的修筑经验,通过理论分析和试验路验证,建立了西部地区县乡公路沥青路面的典型结构。本论文的研究成果针对性强、合理可靠、经济实用,对西部地区县乡公路的建设具有很重要的参考价值。更多还原

【Abstract】 This paper is based on the project- research of the construction of low-cost country roads, which is in charge of the communication department. By detailed survey、analysis of the survey、theory deduction and verification, the typical structure of flexible pavements are offered. And these typical structures are designed taking account of the characteristic of four western provinces (Chongqing、Sichuan、Xinjiang、Neimeng).The key parts of this paper is the selection of design factors which includes strength of subgrade、traffic volume and strength of materials .So how to define the scope of traffic volume of western country roads is the emphasis of this paper. The writer defines these scopes by detailed survey. And according to the two factor’s influence on thickness of pavement structures, the strength and traffic volume are classified. By detailed survey and lots of experiments, strength of pavement materials and base materials are selected.Based on studies mentioned above, the typical structures which are designed for south-western regions (Chongqing and Sichuan) and north-western regions (Xinjiang and Neimeng) are illustrated. The results of this paper take account of climate characteristics and traffic characteristics of several regions, ensure the service capacity of pavements and lowers construction cost and maintenance cost. So the results of this paper can play a great role in the construction of western country roads.更多还原