摘要
采用弹性地基板模型,分析了落锤式动态弯沉仪(FWD)荷载作用下水泥混凝土路面的弯沉规律,回归得到了板角脱空范围与地基类型、地基板相对刚度半径、路面板弯沉指数(FWD荷载作用于板角和板中时的荷载中心点弯沉之比)以及邻板传荷能力之间近似关系式.建立了通过板角和板中的FWD实测弯沉盆数据,对比理论计算结果判别水泥混凝土路面板角脱空状况的方法.
Based on the elastic foundation model, the deflection rules under the loads of falling weight deflectionmeters（FWD）are comprehensively analyzed, and approximate formulas are obtained accordingly by regression among void scope beneath slab corner, deflection index （defined by deflection ratio of slab corner and slab middle under FWD loads）, foundation type and relative stiffness radius of slab. By comparing FWD field test data with finite element methods（FEM） results, an identification method of void beneath cement concrete slab corner is established.
出处
《同济大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2006年第3期335-339,共5页
Journal of Tongji University:Natural Science
基金
交通部西部交通建设科技资助项目(200231882235)
关键词
水泥混凝土路面
板角脱空
弯沉指数
落锤式动态弯沉仪试验
cement concrete pavement
void beneath slab conner
deflection index
falling weight deflectionmeters field test
