低等级公路新老路基结合部路面开裂原因分析及预防处置研究  

Causes of Pavement Cracking at Joint of Old and New Subgrade of Low-Grade Highway and Preventive Treatment Measures

作　　者：张军平 杨凌云[2] 李巍尉[2] 

机构地区：[1]西安中交公路岩土工程有限责任公司,陕西西安710075 [2]中国水电顾问集团西北勘测设计研究院,陕西西安710043

出　　处：《交通标准化》2014年第8期68-70,共3页Communications Standardization

摘　　要：新老路基结合部位的路面开裂一直是公路改扩建工程的难点。通过对新老路基结合部路面开裂现象的原因分析,采取多种措施对某低等级公路新老路基结合部位进行了特殊处置。工后沉降结果显示,处置效果较为明显,证明处理措施合理。The crack of pavement at the joint of old and new subgrade is the difficulty in highway recon- struction and extension all along. Through analyzing the causes of pavement cracking at the joint of old and new subgrade, various measures are adopted to implement specific treatment on the joint of old and new subgrade of a low-grade highway. The results of settlement observation indicate that the effect of the disposal is relatively obvious, which proves that the treatment measures are reasonable.

关 键 词：改扩建 路面开裂 不均匀沉降 处置措施 

分 类 号：U417.6[交通运输工程—道路与铁道工程]