The invention discloses a construction method of
retaining wall by a prefabricated module panel
geogrid reinforcement tailing sand, which belongs to the technical field of civil construction. The method comprises the steps of
processing foundation, prefabricating a concrete module and a sand gravel
cushion layer, carrying out the foundation construction, building panels layer by layer, laying a sand gravel reversed filter layer,
geogrid reinforcement tailing sand padding and a
water discharge pipe, and finally constructing a capping layer. The tailing sand is comprehensively utilized as the padding; the construction speed of the prefabricated concrete module panels is high, so that the
retaining wall is good in deformation adapting capacity and stress performance; the first single-direction
geogrid is laid in the tailing sand padding layer by layer, so that the stability of the wall body can be improved; two-directional geogrid and nonwoven geotechnical cloth are laid on the bottom gravel
cushion layer, so that the stress and deformation can be homogenized, the rising of
capillary water can be reduced, and the water discharged out of the
retaining wall is filtered; The gravel reversed filter layer and the
water discharge pipe, which are arranged between the panel and the tailing sand as well as the composite geotechnical cloth and one film and
cement improved soil capping layer, which are laid on the top, can adjust the load on the top of the wall, so that
permeation of the rainy water is reduced, and the
discharge of the permeated water can be guided.