Ecological reconstructed sponge structure of strip mine dump and application of the same

A method of land reclamation and vegetation reconstruction in the strip mine dump, comprising:

• combining an ecological reconstructed sponge structure with a ground penetrating radar to monitor thicknesses and moisture content of soil layers;
• wherein, the ecological reconstructed sponge structure of a strip mine dump is a three-layered sponge ecological structure arranged on a groundmass layer of the dump, and the three-layered sponge ecological structure comprises, from bottom to top, a water-resisting layer, a water-containing layer, and a topsoil ecological layer;
• wherein
• a thickness of the water-resisting layer is 100-200 cm,
• a thickness of the water-containing layer is 150-250 cm,
• the water-containing layer comprises a mixture of sand, soil, and fly ash that has been subjected to a degree of compaction,
• the degree of compaction is 800-900 kPa, and
• a permeability coefficient of the water-containing layer is 10-20 m/d.

A method of land reclamation and vegetation reconstruction in the strip mine dump, comprising:

• constructing an ecological reconstructed sponge structure;
• wherein, the ecological reconstructed sponge structure of a strip mine dump is a three-layered sponge ecological structure arranged on a groundmass layer of the dump, and the three-layered sponge ecological structure consisting of, from bottom to top,
• a water-resisting layer having an initial thickness of 100-200 cm,
• a water-containing layer having an initial thickness of 150-250 cm, having a permeability coefficient of 10-20 m/d, and consisting of a mixture of sand, soil, and fly ash that has been subjected to a degree of compaction of between 800 and 900 kPa,
• and a topsoil ecological layer having an initial thickness;
• and
• periodically using ground penetrating radar to evaluate the thickness and moisture content of the topsoil ecological layer and the water-containing layer.