文档介绍：第 1 卷第 2 期交通运输工程学报 V ol. 1 No. 2
2001 年 6 月 Journal of T raffic and T ransportation Eng ineering June 2001
文章编号: 1671-1637( 2001) 02-0068-06
山区高速公路车辆下行最大纵坡及坡长限制分析
石飞荣1 , 杨少伟2
( 陕西省公路勘察设计院, 陕西西安 710068; 2. 长安大学公路学院, 陕西西安 710064)
摘要: 山区高速公路建设中, 路线最大纵坡与工程量、工程造价的矛盾十分突出, 若严格执行标准
会出现大量高填、深挖路基、长大桥梁及隧道。从车辆动力学角度对山区高速公路车辆下行的最大
纵坡和坡长进行了分析, 提出了下行理想最大纵坡、一般最大纵坡、极限最大纵坡和坡长限制分析
值, 供公路设计人员及标准修订时参考。
关键词: 山区高速公路; 车辆下行; 最大纵坡; 坡长限制
中图分类号: U412. 3 文献标识码: A
The Maximum Longitudinal Slope and Its Length of Mountain-expressway
under the Condition of Vehicle′s Driving Down
S H I Fei-rong1, YA N G Shao-w ei2
( 1. Shaanxi Prov ince Highw ay Design and Survey Institute, X i′an 710068, China;
2. Schoo l o f Hig hw ay , Chang′an U niv ersit y, Xi′an 710064, China)
Abstract: In the construction o f ex pressw ay in mo untain area, the co ntradictio n o f the max imum
longitudinal slope w ith engineering 's volum e and cost is v ery prominent. If the construction
standard w as executed str ictly, the engineering v olume of hig h fill and deep excavatio n will be
very big, many long span bridges and tunnels must be constructed from the point of v ehicle
dy namics, and the max imum long itudinal slope and its leng th of mo untain-expressw ay under the
co ndition o f vehicle's dr iv ing dow n are analyzed. T he concepts of ideal max imum longitudinal
slo pe, general m ax