Construction method and construction structure for stacked gangue reforestation project

Abstract

The invention provides a construction method and construction structure for a stacked gangue reforestation project. The construction method for the stacked gangue reforestation project comprises the steps that the surface of stacked gangue is provided with a plurality of fixing layers stacked one by one from bottom to top; each fixing layer comprises a plurality of ecologic bags sequentially arranged around the stacked gangue, the multiple fixing layers are fixed together through fixing grippers, woody plants are planted inside the ecologic bags, the ecologic bags are filled with fine soil, and grass seeds are sown on the surfaces of the ecologic bags and the fine soil. Water retention soil located inside the ecologic bags and the fine soil located outside the ecologic bags supply growth soil for woody plants and herbaceous plants, finally, fixation on the stacked gangue structure and greening of the surface of the stacked gangue are achieved by means of the woody plants and the herbaceous plants, and ecologic repair is achieved.

Description

Technical field [0001] The invention relates to the technical field of ecological restoration, and in particular to a construction method and construction structure of a coal gangue restoration project. Background technique [0002] my country is a big country in the production and use of coal, and coal mining has caused a large accumulation of coal gangue. A large amount of coal gangue is piled up on the ground for a long time, causing serious ecological problems. The specific manifestations are: the accumulated coal gangue has poor structure, stability and porosity, and is easy to raise dust, collapse, heat and explode; coal gangue itself has low fertility, water and fertilizer retention capacity, and lacks the nutrients required for vegetation growth, resulting in no grass; especially Coal gangue contains a large number of pollutants such as heavy metals, and migration in the ecosystem poses a great risk to the soil environment, causing air pollution, water pollution, and far...

AI Technical Summary

Problems solved by technology

[0003] At present, the Chinese patent with the publication number CN 107743747 A discloses a method for reclamation and improvement of abandoned coal gangue storage sites, but it is mainly aimed at the reclamation, restoration and improvement of abandoned coal gangue storage sites with high sulfur content; the publication number is CN101749016 A The Chinese patent disclosed a coal gangue hill ecological slurry flame retardant and vegetation recovery technology, but mainly to prevent spontaneous combustion of coal gangue, using shrubs and grasses to restore vegetation; the Chinese patent with publication number CN 102561366 A discloses the use of Amorpha fruticosa The method of restoring the vegetation of the coal gangue hill in the mining area, the selected plant species are relatively single

There are also many literatures on coal gangue vegetation restoration, but there are no reports on the ecological restoration technology that comprehensively considers from the perspectives of improving the structural stability of piled coal gangue, soil improvement effects, and regreening effects.

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