The Application of Grouting Method in Preventive Treatment of Subgrade Settlement of Expressway in Mountainous Areas
Taking the section of a bridge head that needs secondary excavation and backfilling in an expressway project in Zhejiang Province as an example,this paper expounds the basic principle of grouting method,and reasonably selection of the grouting hole spacing,pressure,grouting amount and specific settlement observation parameters,which provides an effective reference for construction,obtains good grouting effect,and effectively controls the uneven settlement of subgrade.It summarizes the construction process and quality control measures of grouting method,aiming to provide reference for similar engineering design and construction.
grouting methodexpressway subgrade in mountainous areauneven settlementpreventive treatment
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