Patent ID: 11911813
Assignee: CHINA UNIVERSITY OF MINING AND TECHNOLOGY, BEIJING
Field: Environmental technology (Chemistry)
Classification: CPC B  E | IPC B  E

Claim 0:
1. An ecological reconstructed sponge structure of a strip mine dump, which is a three-layered sponge ecological structure arranged on a groundmass layer of the dump;
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.