Sludge layer cement mixing pile construction method

The invention discloses a silt layer cement mixing pile construction method, which relates to the field of civil engineering, and comprises the following steps: 1, leveling a construction site; 2, construction paying-off is carried out; thirdly, a pile machine is in place; 4, stirring and spraying powder; 5, lifting, spraying ash and re-stirring; sixthly, pile holes are backfilled and compacted; seventhly, pile measuring and next pile foundation construction are conducted; according to the method, a dry-method two-spraying and two-stirring process and a double-shaft two-way cement stirring pile machine are adopted for construction, the pile forming effect and the construction efficiency are improved, a two-way stirring pile only needs a two-stirring and one-spraying process, a conventional stirring pile adopts a four-stirring and two-spraying process, therefore, the work efficiency is doubled, the labor cost, the electric charge and the like are greatly reduced, and remarkable economic benefits are achieved;