The technology of non-excavation grouting using polymer two-component materials can effectively fill the hollow between the semi-rigid base layer and the bottom base layer at the crack of asphalt pavement,discharge the water in the structure layer,seal the crack,and achieve the effect of reinforcing the pavement structure layer.In order to evaluate the application effect of grouting technology,this article evaluates it through methods such as grouting hole detection during the construction process,ground penetrating radar spectrum testing before and after grouting,deflection testing,and core sampling.The results show that deflection at the crack after grouting can be reduced by 20%,and the deflection differ-ence between the two sides is significantly reduced.The 3D ground penetrating radar shows that there is no abnormal sig-nal and no amplitude strengthening phenomenon in the gray scale map after grouting.Prove that the grout at the crack is filled.
关键词
非开挖注浆/高聚物/半刚性基层/三维探地雷达/横向裂缝
Key words
non-excavation grouting/polymer materials/semi-rigid base layer/3D ground penetrating radar/transverse crack
维普
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