Mechanism of influence of formation stress variation on slurry expansion during grouting

Grouting is an essential technique for managing settlement and rectifying uneven subsidence in construction. Despite its significance, determining grouting parameters primarily relies on empirical experience, resulting in a lack of systematic and scientifically grounded methodologies. Thus, it is crucial to utilize numerical calculation methods to evaluate the effectiveness of grouting under various conditions. The calculation outcomes indicate that the formation pressure and grouting duration are critical factors that influence the expansion of the grout material. Notably, the relationship between formation pressure and the extent of grouting reinforcement displays an exponential pattern while it is inversely proportional to the reinforcement range. Building upon these analytical results, a comprehensive design framework for grouting schemes is proposed to enhance the uniformity and effectiveness of the grouting intervention. This approach optimizes the grouting process and contributes to the built environment's overall stability and structural integrity.