Model Test of Valve-Pipe Grouting Technology to Soft Ground

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.