Identification of Void Beneath Cement Concrete Slab Corner Based on Deflection Index
Identification of Void Beneath Cement Concrete Slab Corner Based on Deflection Index
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发表时间:
2006
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通讯作者:
Z. Jun
中科院分区:
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作者:
Z. Jun
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.