岩土力学2011，Vol.32Issue(3)：745-752,8.
冲击碾压改建路面施工对路基动力作用的试验研究
Dynamic soil pressure characteristics of embankment under impact rolling load during rehabilitation of PCCP
摘要
Abstract
Vertical and lateral dynamic soil pressure characteristics were studied by site tests under different impact rolling times, lines and velocities.It is found that the impact rolling load has a transient shocking effect on the embankment and the dynamic soil pressure near the load increases accumulatively.The dynamic soil pressure is closely related to impact rolling times, lines and velocities.Along with the impact roller coming from the near to the distant, the dynamic soil pressure increase firstly, then decrease.The impact roller can affect the embankment in a distance of 30m to the test location and effect significantly in a distance of 15m.Under different impact rolling times, the dynamic soil pressure increases firstly, then decreases.Resulted from the diffusion of load effected by Portland cement-concrete pavement (PCCP) and the base, the dynamic soil pressure is just only one-tenth of that impact directly on embankment.The research shows that the actual influence depth of embankment using impact roller is greater than the result of FEM; and the horizontal influence distance is about 10 m.关键词
水泥混凝土路面/冲击碾压荷载/路基/土动压力/试验Key words
cement-concrete pavement(CCP)/ impact rolling load/ embankment/ dynamic soil pressure/ test分类
建筑与水利引用本文复制引用
胡昌斌,袁燕..冲击碾压改建路面施工对路基动力作用的试验研究[J].岩土力学,2011,32(3):745-752,8.基金项目
国家自然科学基金(No.50908056) （No.50908056）
福建省高等学校新,纪优秀人才计划(No.TW2006-27) （No.TW2006-27）
福建省自然科学基,(No.2009J01249). （No.2009J01249）
