Closure covering layer of refuse landfill with consideration of multi-field coupling effects

The invention provides a closure covering layer of a refuse landfill with consideration of multi-field coupling effects. The closure covering layer comprises a closure covering layer system and an environment-deformation monitoring system, wherein the closure covering layer system is provided successively, from inside to outside, with a gas discharge layer, an anti-seepage layer, a drainage layer,a nutritious soil layer and a vegetation layer; the environment-deformation monitoring system is provided with an environment-deformation monitoring management platform and multiple environment-deformation monitoring units, each environment-deformation monitoring unit comprises automatic monitoring equipment, a layered settlement meter and a data collection system, and each environment-deformation detection unit is used for real-time monitoring of the closure covering layer system; and the environment-deformation monitoring management platform is in wireless connection with and exchanges datawith each data collection