山区高速公路紧急避险车道驶入角研究  

Research on the Angle to Truck Escape Ramp of Mountainous Expressway

作　　者：汤乾斌 刘唐志[1] 张恒[2] 

机构地区：[1]重庆交通大学交通运输学院,重庆400074 [2]重庆交通大学土木建筑学院,重庆400074

出　　处：《科学技术与工程》2015年第8期111-114,共4页Science Technology and Engineering

基　　金：贵州省交通运输厅科技项目(GZSGLJKYWT-2013-01)资助

摘　　要：避险车道驶入角的大小对避险车道安全性有着重要影响,是影响避险车道功能发挥的关键性因素。通过分析失控车辆在转弯时的受力情况及运行特征,得出了失控车辆驶入避险车道时的横向倾覆条件和横向滑移条件,保证失控车辆的行驶稳定性;并在此基础之上,提出了避险车道驶入角的设置方法,给出了在不同渐变段长度下避险车道驶入角的最大限值。最后,通过工程实例进行了验证性分析,说明所给出的避险车道驶入角限值具有合理性。the angle to truck escape ramp is the key factor to affect the function of truck escape ramp,it has an important impact on the safety of truck escape ramp. the conditions of transverse overturning and lateral slip are established when brake failure vehicles draw into truck escape ramp to ensure the stability by analyzing force condition and operating characteristic on the curve. Based on these works,the method of setting the angle is puts forward to truck escape ramp,and given the maximum limit at different transition section lengths. Finally,the maximum limit angle to truck escape ramp is demonstrated reasonable by engineering examples.

关 键 词：高速公路 避险车道 安全性 驶入角 

分 类 号：U412.36[交通运输工程—道路与铁道工程]