Land restoration method for abandoned sand mining field

Abstract

The invention discloses a land restoration method for an abandoned sand mining field and relates to the technical field of abandoned land recycling methods. The restoration method includes the following steps: raw materials are transported to the field, the raw materials are smashed for preparation, the smashed raw materials are mixed and stirred, the stirred raw materials are fermented, and the processed raw materials are paved and rolled so that the abandoned sand mining field is filled and leveled up. The land restoration method for the abandoned sand mining field has the advantages that the land restoration burdening is scientific and reasonable, the quality of comprehensive backfill is high, and the physical properties of the land such as the bearing capacity and the shear force and the physical and chemical indexes of soil are fully considered. Therefore, the land restoration method for the abandoned sand mining field fully ensures the stability of the land topography restoration and the good cultivation function, provides quality assurance for the restoration and reconstruction of the ecological system, facilitates inspection and management, and is high in economic benefits, ecological benefits and environmental protection benefits.

Description

technical field [0001] The invention relates to the technical field of methods for reusing abandoned land, in particular to a land restoration method for abandoned sand and gravel mining sites. Background technique [0002] The Taihang Mountains and Yanshan Mountains in Hebei Province provide good building materials for the rapid development of the construction industry in Beijing-Tianjin-Hebei and surrounding provinces. However, driven by economic interests, high-intensity illegal mining is widespread, especially the serious ecological damage caused by it and the environmental pollution of exposed areas after mining, which not only affects the normal agricultural production activities around the mining area, Moreover, it accelerates and exacerbates the problems of soil erosion in mining areas and soil degradation in surrounding farmland or mountain fields. So far, the total land occupied by mines and sand and gravel mining in Hebei Province has reached 58,000 hectares, of ...

AI Technical Summary

Problems solved by technology

Because the harmful substances in the landfill pit pollute the groundwater through rainwater erosion and leakage, the cost of incineration is high, and it is easy to cause air pollution, etc.