|Table of Contents|

Safety grade length for driving at long-steep downgrade highway(PDF)

长安大学学报（自然科学版）[ISSN:1006-6977/CN:61-1281/TN]

Issue:
2010年05期
Page:
35-39
Research Field:
Publishing date:
2010-10-20

Info

Title:
Safety grade length for driving at long-steep downgrade highway
Author(s):
HAN Yue-jie1;  XU Jin-liang1;  LIU Yong-fu2;  LIU Guo-fu1;  YANG Hong-zhi1
1. Key Laboratory for Special Area Highway Engineering of Ministry of Education, Chang'an University, Xi'an 710064, Shaanxi, China; 2.Tonghua Administration of Highway, Tonghua 134000, Jilin, China
Keywords:
road engineering;  highway alignment;  long-steep downgrade section;  safety grade length;  brake hub temperature
PACS:
U412.3
DOI:
-
Abstract:
The brake hub temperatures of test trucks and actual trucks at test section were observed respectively, the relationship of brake hub temperature with grade degree, grade length, truck operating speed and total mass was analyzed by using SPSS software, the brake hub temperature prediction model of truck at long-steep downgrade was established, and the rational safety grade length was obtained based on the model. Analysis results show that the brake hub temperatures for safety grade length, general safety grade length and maximum limit grade length at long-steep downgrade section are 200 ℃, 220 ℃ and 260 ℃ respectively, and the rational grade lengths of different class highways can be confirmed through the brake hub temperature prediction model. 10 tabs, 1 fig, 8 refs.

References:

[1] JTG B01—2003,公路工程技术标准[S].
[2]JTG D20—2006,公路路线设计规范[S].
[3]周晓光.青海省长大下坡交通事故预测模型的建立[D].西安:长安大学,2007.
[4]王玉兰.青海省长大下坡路段交通安全分析与评价方法研究[D].西安:长安大学,2007.
[5]刘国富.青海省长大下坡安全改善对策与措施研究[D].西安:长安大学,2007.
[6]郭应时,付 锐,杨鹏飞,等.鼓式制动器瞬态温度场数值模拟计算[J].长安大学学报:自然科学版,2006,26(3):87-90. GUO Ying-shi,FU Rui,YANG Peng-fei,et al.Numerical simulation and calculation for transient thermal field of drum brake[J].Journal of Chang'an University:Natural Science Edition,2006,26(3):87-90.
[7]杨宏志,胡庆谊,许金良.高速公路长大下坡路段安全设计与评价方法[J].交通运输工程学报,2010,10(3):10-16,40. YANG Hong-zhi,HU Qing-yi,XU Jin-liang.Safety design and evaluation method of long-steep downgrade sections for expressway[J].Journal of Traffic and Transportation Engineering,2010,10(3):10-16,40.
[8]邓云潮.公路长大下坡路段小客车运行速度预测模型[J].长安大学学报:自然科学版,2009,29(4):43-47. DENG Yun-chao.Speed prediction model of free-flowing passenger car on long and steep downgrades[J].Journal of Chang'an University:Natural Science Edition,2009,29(4):43-47.

Memo

Memo:
-
Last Update: 2010-10-20