Greening method for high steep rock slope in mining pit

Abstract

The invention provides a greening method for a high steep rock slope in a mining pit. The method includes the following steps of removing pumice stones; grouting cracks; conducting drilling, grouting and anchor lashing on the surface of the slope; carving grooves and drilling the bottoms of the grooves; building a water retaining wall along the lower edges of the grooves; a water-retaining agent is poured into holes, laying planting substrate for planting in the grooves, and watering and conserving plants; amending a drainage ditch on the footing of the surface of the slope, and building a reservoir in the bottom of the pit; planting bamboo willows along the outer edge of the steps of the slope of the mining pit. The greening method for the high steep rock slope in the mining pit has the advantages that the process is simple, the implementation is convenient, the overall greening cost is low, the normal mining operation on the bottom of the pit is not affected, the slope stability after greening is high, the vegetation coverage rate is 100% after one year, the later vegetation maintenance cost is low, and social and economic benefits are good.

Description

technical field [0001] The invention relates to the technical field of slope restoration, in particular to a method for greening high and steep rocky slopes in mining pits. Background technique [0002] On the one hand, the mining of mineral resources provides the necessary resources for the society, on the other hand, it also causes damage to the ecological environment to varying degrees. The mine pits seriously damaged the original landform structure, resulting in land desertification, soil erosion, and greatly affected the natural ecology. . [0003] However, the surface of the mine pit is generally a rock layer, and the lack of water resources makes it impossible for plants to grow, which makes greening transformation very difficult. Since the bottom of the pit is still being mined, the restoration of the upper slope of the pit cannot affect its normal mining operations. Therefore, for slopes with a high slope greater than 70°, grading operations cannot be carried out, ...

AI Technical Summary

Problems solved by technology

[0003] However, the surface of the mine pit is generally rocky, and the lack of water resources prevents the growth of plants, which makes greening transformation very difficult

Since the bottom of the pit is still being mined, the restoration of the upper slope of the pit cannot affect its normal mining operations. Therefore, for slopes with a high slope greater than 70°, grading operations cannot be carried out, and traditional soil-covering planting techniques cannot be used; in addition, At present, it can be used for spraying technology on high and steep slopes. Due to the blasting operation at the bottom of the pit, it is very easy to cause the spraying matrix to shake off and break away from the slope, and the repair effect is poor.

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