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Improved soil matrix and remediation method for green mine

A technology for improving soil and substrate, applied in the fields of planting substrate, soil protection, soil conditioning materials, etc., can solve the problems of deteriorating the natural ecological environment around the mountain, difficult for plants to survive, weak shear resistance, etc., to save construction costs and maintenance. Cost, Nutritious, Structural Effects

Inactive Publication Date: 2019-03-29
杰瑞(莱州)矿山治理有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In recent years, due to the rapid development of economic construction and the excessive development and utilization of natural resources, a large number of damaged mountains, rock faces and high and steep slopes have been produced, which has deteriorated the natural ecological environment around the mountains, and there are safety hazards such as landslides and collapses; Due to the poor supply of nutrients and water on the mountain slope, the vegetation is threatened by drought and heat, and it is extremely difficult to recover; after excavation, the rock slope has a thick rock layer, the overall slope is high and steep, and the general soil matrix is ​​difficult to fix on the rock. The layer is thin, the erosion resistance is poor, and the nutrients in the soil gradually lose with time, resulting in a decrease in fertility year by year, and the mountain slope is short of water and soil. It is difficult for plants to survive. With ultraviolet radiation, wind erosion and water erosion, eventually Consequences that may cause slope collapse
[0003] At present, mine restoration is generally carried out by spraying foreign soil, by excavating planting grooves on mines by engineering methods, or by planting climbing plants at the bottom of slopes. Neither is ideal. The foreign soil spraying matrix has poor fixation ability, thin matrix layer, and weak shear resistance. Especially in the face of high and steep slopes, it is easy to be washed down by rain, and repeated construction often occurs, and the effect is not ideal; if engineering The method of excavating the planting trough in the mine is difficult to construct and the construction cost is high; while the method of climbing plants is used, the greening effect is too slow

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Embodiment 1, a kind of treatment method of green mine, trim the slope of mine to 70 °, and remove the dangerous stone, pumice and crushed stone on the surface; Cover the plastic-coated metal mesh on the surface of the mine and fix it, and fix the hard surface on the inside of the metal mesh. Cultivate rods of quality materials, such as bamboo, with a length of 1 meter and a diameter of 15 centimeters. Lay 2 rows per square meter of mine surface, and the horizontal lap length between bamboos is 5 centimeters; Plastic-coated metal mesh with a thickness of 7cm. The improved soil matrix is ​​made of the following materials according to the volume ratio: 20% organic matter, 47% plastic soil, 5% ground calcium carbonate, 5% kaolin, 8% hydrophilic agent, 3% coagulant, 10% organic fertilizer, plant Seed 1%, polyacrylamide 1%, mix the above components well, mix and stir with water at 20°C, the volume ratio of the mixed material to water is 1:1, and the stirring speed is 100r / mi...

Embodiment 2

[0026] Embodiment 2, a kind of management method of green mine, repair the slope of mine 78 °, and remove the dangerous stone, pumice and crushed stone on the surface; Cover the plastic-coated metal mesh on the surface of the mine and fix it, and fix the hard metal mesh on the inside of the metal mesh. Cultivate rods of hard materials, such as bamboo and wooden sticks, with a length of 1.3 meters and a diameter of 10 centimeters. Three rows are laid on the surface of the mine per square meter, and the horizontal lap length between the two hard materials is 8 centimeters; The machine covers the modified soil matrix on the plastic-coated metal mesh with a thickness of 8cm. The improved soil matrix is ​​made of the following materials according to the volume ratio: organic matter 33%, plastic soil 33%, heavy calcium carbonate 9.4%, kaolin 15%, hydrophilic agent 3%, coagulant 0.5%, organic fertilizer 5%, plant seeds 1%, polyacrylamide 0.1%, fully mix the above components evenly, m...

Embodiment 3

[0027] Embodiment 3, a kind of treatment method of green mine, repair the slope of mine 60 °, and remove the dangerous stone, pumice and crushed stone on the surface; Cover plastic-coated metal mesh on the surface of mine and fix it, and fix hard metal mesh on the inside of the metal mesh. Cultivation rods of hard materials, such as wooden sticks, plastic products, bamboo, etc., are 2 meters in length and 20 cm in diameter, and 4 rows are laid on each square meter of mine surface, and the horizontal lap length between two hard materials is 10 cm. ; Cover the improved soil substrate on the plastic-coated metal mesh with a spraying machine, and the thickness is 10cm. The improved soil matrix is ​​made of the following materials according to the volume ratio: plastic soil 39%, organic matter 26%, heavy calcium carbonate 8%, kaolin 10%, hydrophilic agent 5%, coagulant 2%, organic fertilizer 7%, plant 2.5% seeds, 0.5% polyacrylamide, fully mix the above components evenly, mix and s...

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Abstract

The invention provides an improved soil matrix and a remediation method for a green mine. According to the improved soil matrix and the remediation method for the green mine, a certain gradient of a mountain is formed by trimming a cliff of the mine, a hard material is laid in a certain mode, then a plastic-coated metal net covers the hard material, and finally, the novel improved soil matrix covers the plastic-coated metal net with a certain thickness so as to realize the effective remediation of the mine. The improved soil matrix and the remediation method for the green mine have the beneficial effects that the improved soil matrix can stably float on the surface of the mine with the gradient of less than 80 degrees, the adhesive force is greater than 20 Kpa, the inner friction angle isgreater than 18 degrees, the anti-corrosion index is greater than 99.1%, the anti-scouring index is greater than 2.0 L.min / g, the structure is high, and scouring of heavy rainfall or heavier can be effectively resisted after three days of spraying; the improved soil matrix is rich in nutrition, loose and breathable, and is suitable for growth of plants; and lots of organic matter such as agricultural and forestry leftovers are adopted, so that the water storage performance is high, and the construction cost and the maintenance cost are greatly saved.

Description

technical field [0001] The invention relates to the field of ecological restoration of mines, in particular to a treatment method for improving soil matrix and green mines. Background technique [0002] In recent years, due to the rapid development of economic construction and the excessive development and utilization of natural resources, a large number of damaged mountains, rock faces and high and steep slopes have been produced, which has deteriorated the natural ecological environment around the mountains, and there are safety hazards such as landslides and collapses; Due to the poor supply of nutrients and water on the mountain slope, the vegetation is threatened by drought and heat, and it is extremely difficult to recover; after excavation, the rock slope has a thick rock layer, the overall slope is high and steep, and the general soil matrix is ​​difficult to fix on the rock. The layer is thin, the erosion resistance is poor, and the nutrients in the soil gradually l...

Claims

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Application Information

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IPC IPC(8): C04B28/00C09K17/40E02D3/12A01G24/30A01G24/12A01G24/10A01G24/22A01G24/20C09K103/00
CPCA01G24/10A01G24/12A01G24/20A01G24/22A01G24/30C04B28/001C04B2111/00155C04B2111/00482C04B2111/00732C04B2111/00775C04B2201/50C09K17/40C09K2103/00E02D3/12E02D2300/0045C04B24/2652C04B14/28C04B18/241C04B24/281C04B24/2623C04B24/383C04B22/12C04B22/10C04B22/149C04B2103/0002C04B2103/0068
Inventor 任广滨杨建国张志毅梁欢
Owner 杰瑞(莱州)矿山治理有限公司
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