In this paper,the influencing factors of the reinforcement effect of the blown subgrade under multi-point tamping are analyzed by establishing a multi-point tamping model.The results show that different tamping sequences and tamping methods will affect the reinforcement effect of deep subgrade soil.The smaller the spacing of the ramming points under multi-point tamping,the better the reinforcement effect of the rammed soil.The research results provide a reference for the design of enhanced and high-compaction foundation treatment.
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