摘要
为了降低路面沉降病害的影响,以铁新高速公路为依托,在高填方路段进行路基沉降试验,研究其路基沉降规律。试验结果表明:初始沉降、固结沉降和次固结沉降构成了路基的总沉降;路基的初始沉降主要表现为新填土沉降;在施工期间,固结沉降完成80%左右;竣工1年后,沉降大部分为次压缩沉降,其值虽然小,却直接影响路基、路面的稳定。
Aiming at reducing the impact of settlement disease on pavement, a set of tests are carried out to find out the rules of subgrade settlement in a deeply filled section based on Tiexin Expressway. Finally some conclusions are drawn based upon experimental results： subgrade settlements includes initial settlement, consolidation settlement and the second consolidation settlement; the initial settlement takes place immediately on each paving＇ s compaction; the consolidation settlement completes over 80% during construction; one year after completion, the main settlement is second compression settlement in small numerical value and slow speed, which directly affects the stability of subgrade and pavement
出处
《筑路机械与施工机械化》
北大核心
2008年第12期39-40,43,共3页
Road Machinery & Construction Mechanization
基金
国家自然科学基金(10672102)
关键词
高速公路
路基
沉降
试验研究
expressway
subgrade
settlement
experimental research
