It is concluded that the deflection of the cement-concrete slab increase along a S-counter curve; the cavity shape with same area has little cor elation with the deflection value.

Review for void detective methods of the concrete pavement;

Research on the concrete pavement void and load transfer mechanism;

Void Detection under PCC Pavement;

Acoustic Identifying of Rigid Pavement Cavity Based on Integrated Neural Networks;

Analysis on influencing factors to deflection of slab with cavity;

A case is used to illustrate the applications of GPR that include pavement thickness measurements and voids detection under concrete slabs.

For the first time, both at home and abroad, fiber sensing system realized long-term monitoring and detected the occurrence and development course of disengaging at the interface of steel tube and concrete, a.

Sensing of disengaging at interface of steel tube-confined concrete, which now can be realized by distributed optical fiber sensing, is important for structure safety.

A 3D non-linear FEM calculation is carried out for a high RCC dam of a power station by simulating the calculation conditions of the dam such as material classifying, actual construction and water impoundment, and a detailed study is made on the stress deformation of the whole dam, focusing on the possibility and influencing mechanism of inconsonant deformation between face slab and dam body.