A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Comparison and Analysis Method for Identifying the Voids beneath Concrete Pavement
Voids beneath slab is one of the common distresses of cement concrete pavement, which seriously influences the service ability and the tired life-span of the cement concrete pavement, and the Falling Weight Deflectometer(FWD) gets more and more applications on identifing the voids beneath the cement concrete slab because of its advantages such as speediness, nondestructiveness, etc. The formula for calculating the stresses, strains and deflections of the PCC pavement slab are deduced for different void shapes, and the displacement calculation models of the slab are established for winkler foundation, then the displacements for different void size and position are solved, and also the deflection basin curves are simulated. Through contrasting the deflection curves with voids and without voids beneath slab, the comparison analysis method for identifying the voids beneath slab is put forward based on the FWD measured deflection data. By applying this method in engineering, it is showed that it is a brief and effective method for evaluating the voids for PCC pavement. The achievements of this paper offer a new method and theoretic support for identifying the voids of concrete pavement.
Comparison and Analysis Method for Identifying the Voids beneath Concrete Pavement
Voids beneath slab is one of the common distresses of cement concrete pavement, which seriously influences the service ability and the tired life-span of the cement concrete pavement, and the Falling Weight Deflectometer(FWD) gets more and more applications on identifing the voids beneath the cement concrete slab because of its advantages such as speediness, nondestructiveness, etc. The formula for calculating the stresses, strains and deflections of the PCC pavement slab are deduced for different void shapes, and the displacement calculation models of the slab are established for winkler foundation, then the displacements for different void size and position are solved, and also the deflection basin curves are simulated. Through contrasting the deflection curves with voids and without voids beneath slab, the comparison analysis method for identifying the voids beneath slab is put forward based on the FWD measured deflection data. By applying this method in engineering, it is showed that it is a brief and effective method for evaluating the voids for PCC pavement. The achievements of this paper offer a new method and theoretic support for identifying the voids of concrete pavement.
Comparison and Analysis Method for Identifying the Voids beneath Concrete Pavement
Zhong, Yan-hui (author) / Zhang, Bei (author) / Wang, Fu-ming (author) / Liu, Yong (author) / Qi, Yue-hua (author)
GeoShanghai International Conference 2010 ; 2010 ; Shanghai, China
Paving Materials and Pavement Analysis ; 227-233
2010-05-14
Conference paper
Electronic Resource
English
Comparison and Analysis Method for Identifying the Voids beneath Concrete Pavement
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