Grouting pumps inject cement-based or chemical grout into foundation cracks, pores, or weak layers under high pressure, forming a solidified mass to enhance the foundation’s bearing capacity. Its reinforcement principles encompass the following aspects: Permeation consolidation: The grout fills soil pores, increasing density through cementation; suitable for highly permeable strata such as sandy soil and silt. Fracturing reinforcement: High-pressure grout fractures the soil, forming a dendritic grout vein network, improving the overall strength of the foundation; commonly used for soft clay or collapsible loess. Compaction grouting: High-pressure compaction of the surrounding soil creates a dense zone; suitable for saturated soft clay or artificial fill.
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