【中英雙語】416關于土木工程專業(yè)（道路與橋梁）公路道路路面路基規(guī)劃設計有關的外文文獻翻譯成品：公路幾何設計（中英文雙語對照）

1、此文檔是畢業(yè)設計外文翻譯成品（ 含英文原文+中文翻譯），無需調整復雜的 格式！下載之后直接可用，方便快捷！本文價格不貴,也就幾十塊錢！一輩子也就一次的事！外文標題：Geometric Design of Highways外文作者：Manoj K. Jha文獻出處: Civil Engineering Journal,2018,12(4):23-39 (如覺得年份太老，可改為近 2 年，畢竟很多畢業(yè)生都這樣做)英文 2263 單詞，136

2、35 字符(字符就是印刷符)，中文 3469 漢字。（如果字數(shù)多了，可自行刪減，大多數(shù)學校都是要求選取外文的一部分內容進行翻譯的。）Geometric Design of HighwaysThe road is one kind of linear construction used for travel. It is made of the roadbed, the road surface, the bridge, the culv

3、ert and the tunnel. In addition, it also has the crossing of lines, the protective project and the traffic engineering and the route facility. The roadbed is the base of road surface, road shoulder, side slope, side ditc

4、h foundations. It is stone material structure, which is designed according to route's plane position .The roadbed, as the base of travel, must guarantee that it has the enough intensity and the stability that can pre

5、vent the water and other natural disaster from corroding.The road surface is the surface of road. It is single or complex structure built with mixture. The road surface require being smooth, having enough intensity, good

6、 stability and anti-slippery function. The quality of road surface directly affects the safe, comfort and the traffic.Highway geometry designs to consider Highway Horizontal Alignment, Vertical Alignment two kinds of lin

7、ear and cross-sectional composition of coordination, but also pay attention to the smooth flow of the line of sight, etc. Determine the road geometry, consider the topography, surface features, rational use of land and e

8、nvironmental protection factors, to make full use of the highway geometric components of reasonable size and the linear combination.curve, super elevation begins and the vehicle is tilted inward, but the passenger must r

9、emain vertical since there is on centrifugal force requiring compensation. When the vehicle reaches the curve, full centrifugal force develops at once, and pulls the rider outward from his vertical position. To achieve a

10、 position of equilibrium he must force his body far inward. As the remaining super elevation takes effect, further adjustment in position is required. This process is repeated in reverse order as the vehicle leaves the c

11、urve. When easement curves are introduced, the change in radius from infinity on the tangent to that of the circular curve is effected gradually so that centrifugal force also develops gradually. By careful application o

12、f super elevation along the spiral, a smooth and gradual application of centrifugal force can be had and the roughness avoided.Easement curves have been used by the railroads for many years, but their adoption by highway

13、 agencies has come only recently. This is understandable. Railroad trains must follow the precise alignment of the tracks, and the discomfort described here can be avoided only by adopting easement curves. On the other h

14、and, the motor-vehicle operator is free to alter his lateral position on the road and can provide his own easement curves by steering into circular curves gradually. However, this weaving within a traffic lane (but somet

15、imes into other lanes) is dangerous. Properly designed easement curves make weaving unnecessary. It is largely for safety reasons, then, that easement curves have been widely adopted by highway agencies.For the same radi

16、us circular curve, the addition of easement curves at the ends changes the location of the curve with relation to its tangents; hence the decision regarding their use should be made before the final location survey. They

17、 point of beginning of an ordinary circular curve is usually labeled the PC (point of curve) or BC (beginning of curve). Its end is marked the PT (point of tangent) or EC (end of curve). For curves that include easements