Greening spray-seeding method for mine rock discharging field exposed barren rock side slope

Abstract

The invention relates to a greening spray-seeding method for a mine rock discharging field exposed barren rock side slope. The method comprises the steps that firstly, after 80-100 g of adhesives areadded into each ton of tailings, water is added to form guniting, and bottom layer spray-seeding is performed to cover the slope surface; then, by volume, 80-100 parts of clay, 4-6 parts of organic fertilizer, 4-6 parts of charcoal, 1-3 pats of rice hulls, 0.05-0.07 part of microbial agents, 0.02-0.05 part of a water retaining agent and 0.02-0.05 part of adhesives are mixed and stirred to be uniform, a base layer is manufactured for growing the matrix, water is added to form guniting, and then base layer spray-seeding is performed; then, Kochia scoparia, coreopsis and red fescue seeds are mixed into the base layer growth matrix, water is added to form guniting, and spray-seeding is performed on the seed layer; later-period vegetation curing is performed. According to the selected method, waste iron tailings are used at first, slope surface gaps are filled to be flat, and then, greening spray-seeding is performed, so that the ecologic problem of the rock discharging side slope is solved, the waste iron tailings are recycled, and a large number of loess resources are saved.

Description

Technical field [0001] The invention belongs to the technical field of environmental protection, and specifically relates to a greening spraying method for the exposed rock side slope of a mine dump. Background technique [0002] In recent years, infrastructure construction in various parts of our country has developed rapidly. Road construction, quarrying, mining, and hydropower infrastructure projects have destroyed the original ecology, caused soil erosion, and formed a large number of exposed rock slope engineering wounds, requiring ecological treatment and Ecological restoration. In particular, a large amount of waste rock is generated during mining. The piled rock dump not only occupies a large area, but also has a large amount of waste rock, no soil, lack of water, less fertilizer, and many gaps between the rocks. , The slope level is uneven, the ecological environment is bad, and ecological restoration is facing many difficulties. [0003] At present, in view of the ecolo...

AI Technical Summary

Problems solved by technology

Although these technologies can restore ecology and protect slopes on ordinary slopes, the operation methods are complicated and the economic costs are high.

[0005] The abandoned iron tailings drainage field has many rocks, large gaps, uneven slopes, and less soil, water, and fertilizer. Direct spraying will consume a lot of materials, and it is difficult to achieve good results. Filling the gaps in the slope for slope repair needs to consume more precious loess resources, which will further increase the cost of ecological restoration. It is necessary to study a low-cost and high-efficiency greening and spraying method for the special slope characteristics of the mine rock drainage field