Abstract
There are many engineering diseases during asphalt road operating process caused by poor subgrade bearing capacity or pavement structural strength, mainly as the form of structural cracks, net-shaped cracks, subsidence, rutting. This phenomenon is more widespread in the level road whose structure form is rock filled sand or lime-flyash soil. Due to the engineering diseases of level road caused by poor subgrade bearing capacity or pavement structural strength, analyzing and comparing of various repair and reinforcement method, valve-pipe grouting technology is proposed. This paper revealed the grouting slurry diffusion and consolidation forming situation of the valve-pipe grouting technology.
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