黑龙江省高等级公路轴载分布规律的研究  

Research on the Laws of Typical Axial Load Distribution of High Class Highway in Heilongjiang Province

作　　者：宇德忠[1,2] 杨洪生 程培峰[1] 

机构地区：[1]东北林业大学土木工程学院,哈尔滨市150040 [2]黑龙江省交通科学研究所,哈尔滨市150080

出　　处：《公路》2015年第3期120-125,共6页Highway

基　　金：黑龙江省重点科研项目;项目编号2011052412

摘　　要：随着车辆大型化的发展,重载交通对道路的使用寿命造成了严重的影响,很多高等级公路路面的早期损坏都与运输车辆的轴载超限现象有着直接的关系。针对黑龙江省内几条典型高等级公路的交通流进行了调查,统计出了客、货车的交通量,明确了交通流特征;使用轴载测试设备对所调查路段的车辆进行了轴载测定,在测定数据的基础上建立了高等级公路典型路段的轴载谱;通过有限元软件建立模型分析了交通流增长对路表位移的影响。交通量调查及有限元分析结果表明：2012年-2013年货车的年平均增长率为10.16%,客车的年平均增长率为4.66%;2013年的换算累计标准轴载当量轴次比2012年增加了1.1倍,相对应的路表位移增大1.8倍。本研究成果可为今后黑龙江省高等级公路的设计、施工及养护决策提供理论支撑。With the development of large-scale vehicle,overloaded traffic has caused severe impact on the service life of the road,and many early damages of highway have a direct interaction with overloading of the vehicles.In this paper several typical high class highways in Heilongjiang Province are studied,the passenger and freight traffic volume are worked out to make clear the traffic flow characteristics;axial load test equipment is used for the investigation of highway vehicles to determine the axial load,and based on measured data the typical sections of highway axle load spectrum is established;impact of traffic flow growing on ground displacement is analyzed by using finite element software.The traffic investigation and finite element analysis results show that from 2012 to 2013the truck＇s average annual growth rate is10.16%,passenger average annual growth rate is 4.66%;the cumulative standard axle load equivalent in2013 is 1.1times of that in 2012,road surface displacement is 1.8times higher than in 2012.The research results can provide theoretical support for the future design,construction and maintenance of high-grade highway in Heilongjiang Province.

关 键 词：高等级公路 交通量调查 交通流特征 典型轴载 轴载谱 

分 类 号：U491.122[交通运输工程—交通运输规划与管理]