本文選題：道路幾何設(shè)計(jì)　切入點(diǎn)：行車(chē)舒適性　出處：《重慶交通大學(xué)》2015年碩士論文　論文類型：學(xué)位論文

【摘要】：隨著人民生活水平的不斷提高,越來(lái)越多的人追求高質(zhì)量生活,人們出行不再僅僅滿足于“有路行駛”,而是越來(lái)越要求“有好路行駛”,這就使汽車(chē)在公路上行駛時(shí)不僅要有安全性,舒適性也越來(lái)越受到重視。影響行車(chē)舒適性的因素有很多,其中道路幾何設(shè)計(jì)因素是關(guān)鍵因素。但是,目前有關(guān)行車(chē)舒適性方面的研究基本都放在了其評(píng)價(jià)方法上,而從設(shè)計(jì)上提高行車(chē)舒適性的研究較少。因此,為了滿足道路設(shè)計(jì)的發(fā)展所需,有必要對(duì)提高行車(chē)舒適性的道路幾何設(shè)計(jì)改善方法展開(kāi)研究。本文通過(guò)對(duì)行車(chē)舒適性的概念、表現(xiàn)形式和影響因素的分析,從運(yùn)動(dòng)學(xué)和視覺(jué)分析的角度出發(fā),闡述了道路設(shè)計(jì)因素對(duì)行車(chē)舒適性的影響;并在學(xué)習(xí)借鑒國(guó)內(nèi)外現(xiàn)有研究成果的基礎(chǔ)上,提出了道路行車(chē)舒適性的評(píng)價(jià)標(biāo)準(zhǔn)與評(píng)價(jià)方法。在此基礎(chǔ)上,采用定性分析與定量計(jì)算相結(jié)合的方法,研究了道路幾何設(shè)計(jì)與行車(chē)舒適性的關(guān)系,結(jié)合行車(chē)舒適性改善的目標(biāo)要求,分別從道路平面線形設(shè)計(jì)、縱斷面線形設(shè)計(jì),以及路基橫斷面和路側(cè)景觀設(shè)計(jì)等方面,提出了改善行車(chē)舒適性的具體措施和建議。在平面線形設(shè)計(jì)方面,首先建立了圓曲線半徑以及緩和曲線長(zhǎng)度與舒適性控制指標(biāo)之間的關(guān)系,對(duì)滿足行車(chē)舒適性的圓曲線最小半徑和緩和曲線最小長(zhǎng)度進(jìn)行了研究;然后提出采用布勞斯曲線或者麥克康納爾曲線作為高等級(jí)公路的緩和曲線,分析研究了這兩種曲線對(duì)改善行車(chē)舒適性的意義及其設(shè)計(jì)要求;最后提出以限制軸向加速度的大小來(lái)控制基本型、S形曲線和卵形曲線的設(shè)計(jì)。在縱面線形設(shè)計(jì)方面,首先建立了豎曲線半徑與豎向加速度之間的關(guān)系,聯(lián)系實(shí)際情況,對(duì)其改善方法進(jìn)行了研究;然后結(jié)合已有研究成果,定性分析縱坡設(shè)計(jì)對(duì)行車(chē)舒適性的影響,并給出了前后縱坡坡差的取值建議值。在路基橫斷面以及景觀設(shè)計(jì)方面,結(jié)合路基橫斷面設(shè)計(jì)對(duì)行車(chē)舒適性的影響,對(duì)路基邊坡和邊溝的設(shè)計(jì)提出了改善建議;最后從視覺(jué)舒適的角度分析了景觀設(shè)計(jì)對(duì)行車(chē)舒適性的影響,對(duì)其設(shè)計(jì)提出改善建議。本文分別從平面線形、縱面線形、路基及景觀設(shè)計(jì)上提出了行車(chē)舒適性的改善措施和建議,研究成果為提高行車(chē)舒適性提供了理論支撐,對(duì)指導(dǎo)道路幾何設(shè)計(jì)、改善道路行車(chē)舒適性具有一定的作用和實(shí)際參考價(jià)值。
[Abstract]:With the continuous improvement of people's living standards, more and more people are pursuing a high quality of life. People are no longer satisfied with "driving with roads", but more and more require "driving with good roads", which makes cars not only have safety, but also pay more and more attention to comfort when driving on the highway. There are many factors that affect driving comfort. Among them, road geometric design is the key factor. However, at present, the research on driving comfort is basically focused on its evaluation method, but the research on improving driving comfort from design is less. In order to meet the needs of the development of road design, it is necessary to study the improving method of road geometry design to improve the driving comfort. From the point of view of kinematics and visual analysis, this paper expounds the influence of road design factors on driving comfort, and draws lessons from the existing research results at home and abroad. The evaluation standard and evaluation method of road driving comfort are put forward. On the basis of this, the relationship between road geometry design and driving comfort is studied by combining qualitative analysis with quantitative calculation. According to the goal of improving the driving comfort, the road plane line design, the longitudinal section line design, the roadbed cross section and the road side landscape design, etc. In the aspect of plane linear design, the relationship between radius of circular curve, length of detent curve and comfort control index is established. The minimum radius of circular curve and the minimum length of transition curve are studied, and the Browes curve or McConnell curve is proposed as the relief curve of high grade highway. The significance of the two curves to improve the driving comfort and the design requirements are analyzed and studied. Finally, the design of the basic type S-shaped curve and the oval curve is proposed to control the basic type of the S-shaped curve and the oval curve by limiting the magnitude of the axial acceleration. Firstly, the relationship between vertical curve radius and vertical acceleration is established, and the improvement method is studied according to the actual situation, and then the influence of longitudinal slope design on driving comfort is qualitatively analyzed. In the aspect of roadbed cross-section and landscape design, combined with the influence of roadbed cross-section design on driving comfort, some suggestions for improving the design of roadbed slope and side ditch are put forward. Finally, from the angle of visual comfort, the influence of landscape design on driving comfort is analyzed, and some suggestions for improving the design are put forward. In the design of roadbed and landscape, the improvement measures and suggestions of driving comfort are put forward. The research results provide theoretical support for improving driving comfort and guide the road geometry design. Improving road driving comfort has certain function and practical reference value.
【學(xué)位授予單位】：重慶交通大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：U412.3

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本文編號(hào)：1638674