Structure and process for dry stockpiling of red mud on basis of wet reservoir region

The invention belongs to the technical field of alumina production, and specifically relates to a structure and a process for dry stockpiling of red mud on the basis of a wet reservoir region. According to the invention, through construction of a stepped red mud filter cake fill dam with gradually-increased heights at the upper stream of a starter dam, the volume of an original red mud reservoir can be expanded, so the service life of a wet red mud reservoir is prolonged, and the area of occupied land is saved; meanwhile, a clay reinforcement layer is attached onto the formed fill dam with gradually-increased heights, and a vegetation layer is arranged on the clay reinforcement layer located on the outer slope of the fill dam to increase the strength of the fill dam and improve the stability of a dam body of a red mud reservoir, so the problem of pollution to the surrounding environment due to overflowing of sewage after scouring of rainwater is solved, and the cost of constructing a sewage sedimentation tank