不同类型交通荷载作用下低路堤路基特性现场试验研究

Site Test on Low Embankment under Different Traffic Load

与一般路基相比,交通荷载不能在低路堤中充分扩散再传递到地基上,因而加剧了地基的沉降变形,同时交通荷载引起的震动也容易会导致地基土层的不均匀沉降。以连盐高速低路堤路段为工程依托,通过现场试验分析研究了交通荷载作用下低路堤的路基动态特性,其研究结果可为在软土地基上修筑低路堤高速公路设计、施工、管理和养护提供参考。

Compared with normal embankment,traffic load can′ t be spread and transfered to foundation fully at low embankment,which intensifies ground settlement and deformation. Taking Lianyan expressway low embankment section as an example,this paper analyses the dynamic charcteristic of low embankment under different traffic load,the research results could offer refference for expressway design,construction,management and maintenance at soft ground.