Research on Disposal and Reuse of Grouting from Borehole of Urban Bridge

Abstract

Aiming at the problem of how to deal with a large amount of waste mud produced in the construction of expressway cast-in-place pile, this paper studies the existing waste mud treatment technology in the construction of cast-in-place pile, and proposes to adopt the pressure filtration and solidification treatment technology of urban bridge borehole abandoned slurry, and use the mud solidification and filtration equipment to separate the waste mud from mud cake and tail water. Part of the tail water is injected into the mud pond for recycling, part is reprocessed for agricultural greening and irrigation, etc. The mud cake is recycled and reused, and can be converted into backfill and green soil according to the actual needs of the site, thus solving the problems of large environmental pollution, low utilization rate of waste materials and poor civilized construction in the traditional waste mud treatment process. Finally, In view of the impact of grouting treatment on the environment of urban Bridges,a post-evaluation model of grouting treatment environment is established, which provides a scientific evaluation system for implementing the post-grouting treatment environment evaluation.