Plateau cold and arid region strong alkali salinized soil roadbed construction method

The invention discloses a construction method for a strong-alkali saline soil roadbed in a plateau cold and arid region, belongs to the technical field of roadbed construction, and solves the problem that an existing construction method is not suitable for the strong-alkali saline soil roadbed in the plateau cold and arid region. The method comprises the steps that a site is cleaned; sand grains are selected to fill the bottom of the roadbed; the foundation with the remaining depth is subjected to bedding soil layer division; acid liquor is taken and mixed with the filling soil material, and lime is added into the filling soil material; filling of a first soil layer is conducted, specifically, the treated filling soil material is placed in the foundation, sand is taken to fill the top of the filling soil material and compacted, then cloud soil and rockwork continue to be filled on the upper layer, and filling of the first soil layer is completed; the remaining soil layer is filled in the same mode; paving asp