Method for reducing foundation liquefaction

The invention relates to the technical field of foundation engineering construction, in particular to a method for reducing foundation liquefaction. The method includes: detecting the depth d of a sandy soil liquefied soil layer of a target road section; comparing the depth d with a preset standard soil layer depth D0; when d is less than D0, treating the foundation of the target road section by paving gravel dynamic compaction; when d is larger than or equal to D0, gravel piles are adopted to treat the foundation of the target road section; when the gravel pile is adopted to treat the foundation of the target road section, a bacterial liquid is poured into sandy soil in the foundation of the target road section; a low-concentration solution is poured into the sandy soil, and microorganisms in the sandy soil are flocculated into particles; nutritive salt is poured into the sandy soil at a low speed, so that microorganisms in the sandy soil continuously generate calcium carbonate crystals. According to the met