CN106489591A - A kind of substitution tables soil material for open coal mine - Google Patents
A kind of substitution tables soil material for open coal mine Download PDFInfo
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- CN106489591A CN106489591A CN201610909096.2A CN201610909096A CN106489591A CN 106489591 A CN106489591 A CN 106489591A CN 201610909096 A CN201610909096 A CN 201610909096A CN 106489591 A CN106489591 A CN 106489591A
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- soil
- sandy loam
- sand
- organic substance
- coal mine
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- 239000002689 soil Substances 0.000 title claims abstract description 92
- 239000000463 material Substances 0.000 title claims abstract description 45
- 238000006467 substitution reaction Methods 0.000 title claims abstract description 30
- 239000003245 coal Substances 0.000 title claims abstract description 23
- 239000010902 straw Substances 0.000 claims abstract description 34
- 239000004576 sand Substances 0.000 claims abstract description 32
- 239000000126 substance Substances 0.000 claims abstract description 26
- -1 sandy loam Substances 0.000 claims abstract description 4
- 239000004927 clay Substances 0.000 claims description 3
- 239000004615 ingredient Substances 0.000 claims 1
- 241000283690 Bos taurus Species 0.000 abstract description 11
- 241001494479 Pecora Species 0.000 abstract description 11
- 210000003608 fece Anatomy 0.000 abstract description 11
- 239000000203 mixture Substances 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 abstract description 2
- 238000009472 formulation Methods 0.000 abstract 1
- 240000004658 Medicago sativa Species 0.000 description 13
- 239000000758 substrate Substances 0.000 description 12
- 241000219823 Medicago Species 0.000 description 11
- 238000005065 mining Methods 0.000 description 11
- 239000005416 organic matter Substances 0.000 description 11
- 235000017587 Medicago sativa ssp. sativa Nutrition 0.000 description 10
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 8
- 241000196324 Embryophyta Species 0.000 description 7
- 230000006378 damage Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 4
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 4
- 229910052757 nitrogen Inorganic materials 0.000 description 4
- 235000015097 nutrients Nutrition 0.000 description 4
- 229910052698 phosphorus Inorganic materials 0.000 description 4
- 239000011574 phosphorus Substances 0.000 description 4
- 229910052700 potassium Inorganic materials 0.000 description 4
- 239000011591 potassium Substances 0.000 description 4
- 229910052793 cadmium Inorganic materials 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000011435 rock Substances 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 239000012615 aggregate Substances 0.000 description 2
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910001385 heavy metal Inorganic materials 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 235000021049 nutrient content Nutrition 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- 239000011701 zinc Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 241000269799 Perca fluviatilis Species 0.000 description 1
- 240000008042 Zea mays Species 0.000 description 1
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 description 1
- 235000002017 Zea mays subsp mays Nutrition 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 238000005904 alkaline hydrolysis reaction Methods 0.000 description 1
- 229910052785 arsenic Inorganic materials 0.000 description 1
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000002361 compost Substances 0.000 description 1
- 235000005822 corn Nutrition 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000032798 delamination Effects 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 229910052745 lead Inorganic materials 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000002688 soil aggregate Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000012876 topography Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G24/00—Growth substrates; Culture media; Apparatus or methods therefor
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C41/00—Methods of underground or surface mining; Layouts therefor
- E21C41/32—Reclamation of surface-mined areas
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Remote Sensing (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Environmental Sciences (AREA)
- Cultivation Of Plants (AREA)
Abstract
The present invention relates to the representative soil material replaced for open coal mine, belong to the ecological environment material nd field of land reclamation and ecology reestablishing technology, this material is mainly mixed by table soil, sandy loam, sand, mixing soil, Organic substance (cattle and sheep feces), modified straw, and the percentage by weight of each composition is table soil 30% 40%, sandy loam 20% 50%, sand 30% 50%, mixing soil 10% 20%, Organic substance (cattle and sheep feces) 0.1% 0.5%, modified straw 0.1% 0.5%.This improved formulations maintains the fundamental characteristics of soil, improves physics, chemistry and the biological nature of original substitution tables soil material, improves the growth performance and anti-adversity of plant, be the proprietary material that land reclamation and ecological reconstruction are realized in open coal mine Subsided Reclamation Region.
Description
Technical field
The invention belongs to for land reclamation and the ecological environment material nd field of ecology reestablishing technology, more particularly to for table
The table soil material substituted in the relatively thin opencast coal mine dump land reclamation of soil layer and ecological reconstruction.
Technical background
Opencut coal mine mining needs to peel off top rock, especially deeper opencut, often takes more soil.Related
Research shows, has an opencast mining of 10,000 t of colliery about damage to land 0.22hm2, including excavating damage land area 0.12hm2, outer casting
Field land occupation 0.1hm2, it is 2-11 times of pit mining damage soil to the damaged area in soil.Coal mining produces a large amount of
Gangue, and in gangue, there is the harmful substances such as heavy metal Cu, Zn, Cd, Pb, these harmful substances are entered with rain leaching
Underground, affects groundwater environment health.Produce in process of coal mining dust, airborne dust, coal-fired discarded etc. can atmosphere pollution, harm
People's is healthy.Strip mining transformation changes present landscape；The local topography and geomorphology of destruction；Change soil nutrient condition and microorganism
Composition, makes loss of soil nutrient serious, reduces microbial activity；Destruction mining area vegetation growth, causes vegetation minimizing, upsets animal
Perch growing environment, affect bio-diversity.Therefore, the land reclamation of open coal mine with restoration of the ecosystem for China is sent out for a long time
Exhibition is particularly important.
It is land reclamation that during open coal mine land reclamation, table soil delamination and backfill build suitable Soil structure
The key of work, table soil are most important one layer in neotectonics soil.Traditional land reclamation needs topsoil stripping and then carries out
Backfill, but when running into, topsoil is thin, while unavoidably causing the loss of table soil in stripping, stacking, backfilling process；In dew
The interior outer dump formed during its coal mining is in step-like distribution, while forming more side slope, causes land reclamation area
The surface area of significantly more than former mining area, ultimately causes a large amount of deficiencies of indigenous top soil quantity.Thus, it is badly in need of finding suitable new soil
During material solves the problems, such as land reclamation, table soil is not enough.By improveing to substitution tables soil material, fundamentally can solve
Required table soil resource deficient present situation when opencast coal mine dump is reclaimed, realizes that mining area ecological environment sustainable development is provided effectively
Approach.
Content of the invention
The invention aims to during solving open coal mine land reclamation and ecological reconstruction, due to table soil resource deficient
Weary and the requirement for recovering vegetation growth can not be reached, develop a kind of for open coal mine substitution tables soil material, the formula has
Abundant raw materials, nutrient content are higher, configuration is simple to operate, pollution-free the advantages of, east Inner Mongolia open coal mine can be replaced
Table soil needed for the land reclamation of refuse dump, ensure that the normal growth of vegetation, so as to recover opencut ecological environment as early as possible.
Proposed by the present invention the first be used for substitution tables soil material, it is characterised in that main by main component:Table is native, sub-
Clay, sand and auxiliary element:Organic substance, modified straw are mixed, and each predominant quantity percentage ratio is table soil 34%-
40%th, sandy loam 20%-33%, sand 33%-40%, each auxiliary element account for the percentage ratio of main component gross weight and are：Organic
Thing 0.1%-0.5%, modified straw 0.1%-0.5%.
It is used for substitution tables soil material second proposed by the present invention, it is characterised in that main by main component：Sandy loam,
Sand and auxiliary element：Organic substance, modified straw are mixed, and each predominant quantity percentage ratio is sandy loam 33%-
50%th, sand 50%-67%, auxiliary element account for the percentage ratio of main component gross weight and are：Organic substance 0.5%-1%, modified straw
Stalk 0.5%-1%.
Proposed by the present invention the third is used for substitution tables soil material, it is characterised in that main by main component：Sandy loam,
Sand, mixing soil and auxiliary element：Organic substance, modified straw are mixed, and each predominant quantity percentage ratio is sandy loam
40%-50%, sand 25%-40%, mixing soil 20%-25%, auxiliary element account for the percentage ratio of main component gross weight and are：Have
Machine thing 0.5%-1%, modified straw 0.5%-1%.
The characteristics of of the invention and technique effect：
The open coal mine substitution tables soil material that the present invention is developed, is the proprietary material of a kind of land reclamation and ecological reconstruction,
Physics, chemistry and the biological nature of substitution tables soil material is obviously improved, plant growing needs is met, is solved opencast coal mine dump
It is badly in need of the native an urgent demand of table in land reclamation and ecological reconstruction.
Of the invention main using table soil, sandy loam, sand, mixing soil, Organic substance (cattle and sheep feces), improvement straw.Local
, in silt, unit weight, porosity and aggregate amounts are moderate for table penus, organic matter, available potassium, rapid available phosphorus, alkaline hydrolysis nitrogen content compared with
Height, cadmium, hydrargyrum, lead, cadmium, arsenic, copper, zinc, nine heavy metal species content of nickel are respectively less than national soil environment quality primary standard.Sandy loam
It is to weigh clay, unit weight has reached 1.55g/cm3, porosity and aggregate amounts relatively low, organic matter, available potassium, rapid available phosphorus and alkali
Solution nitrogen content is relatively low, and content of beary metal is less than national soil environment quality primary standard.Mixing soil refers to product in process of coal mining
Raw dumps thing, generally comprises rotten plant table soil, solid rock, weathered rock and soil, mixing ground, and mixing soil nutrient content is very low, main
If improving the stickiness of sandy loam.Organic substance (cattle and sheep feces) source is wide, quantity is big, low cost, it is possible to achieve gather materials on the spot, with
The nutrients such as Shi Fuhan nitrogen, phosphorus, potassium, promote the formation of soil aggregate, chesson to increase water conservation, the premium of soil
Ability.Improvement straw is anaerobism compost after corn straw smashing, rich in organic matter, nitrogen, phosphorus, potassium, is arid, the half-dried nonirrigated farmland of China
Area gets agricultural profit the important raw and processed materials of volume increase.
The table soil substitution material is rich in organic matter and various nutrients necessary to plant growing, the examination of potted plant or field
Display is tested, growing plants is better than the plant of plant on control soil in this formula materials, so as to reach substitution tables soil
Effect.
Description of the drawings
Fig. 1 is the A formula and Growth of Alfalfa situation comparison diagram in sandy loam using the present invention.
Fig. 2 is the B formula and Growth of Alfalfa situation comparison diagram in sandy loam using the present invention.
Fig. 3 is the C formula and Growth of Alfalfa situation comparison diagram in sandy loam using the present invention.
Specific embodiment
Open coal mine substitution tables soil material proposed by the present invention, is described in detail as follows in conjunction with the embodiments：
The host material of the present invention mainly includes：Table soil, sandy loam, sand, mixing soil, organic matter (such as cattle and sheep feces),
Modified straw.
The present invention includes the substitution tables soil material of three kinds of formula.Wherein A formula：Predominant quantity percentage ratio is table soil
34%-40%, sandy loam 20%-33%, sand 33%-40%, auxiliary element account for main component percentage by weight and are：Organic substance
(cattle and sheep feces) 0.1%-0.5%, modified straw 0.1%-0.5%.
B formula：Predominant quantity percentage ratio is sandy loam 33%-50%, sand 50%-67%, and auxiliary element accounts for
Main component percentage by weight is：Organic matter 0.5%-1%, modified straw 0.5%-1%.
C formula：Predominant quantity percentage ratio is sandy loam 40%-50%, sand 25%-40%, mixing soil 20%-
25%, auxiliary element accounts for main component percentage by weight and is：Organic substance 0.5%-1%, modified straw 0.5%-1%.
Wherein：The table soil of the present embodiment employing, sandy loam, sand, organic matter (cattle and sheep feces), modified straw (are this
Field well known materials are asked) adopt Inner Mongol Huhehaote local material, any of the above material particle size to cross 2mm sieves.
The using method of the substitution tables soil material of the present invention：
Material of the present invention is covered directly on soil after opencast coal mine dump is reclaimed, after planting carry out daily management.
Embodiment one：
Using the A formula of substitution tables soil material, the percentage ratio of each main component is：Table soil 34%, sandy loam 33%, sand
33%, auxiliary element accounts for the percentage ratio of main component and is：Organic substance (cattle and sheep feces) 0.5%, modified straw 0.5%.Using this
Embodiment plants alfalfa as substrate, and compared with sandy loam, phytomass increased 45%.
Embodiment two：Using the A formula of substitution tables soil material, the percentage ratio of each main component is：Table soil 34%, sandy loam
33%th, sand 33%, auxiliary element account for the percentage ratio of main component and are：Organic substance (cattle and sheep feces) 0.3%, modified straw
0.3%.The present embodiment is used to plant alfalfa as substrate, compared with sandy loam, phytomass increased 30%.
Embodiment three：Using the A formula of substitution tables soil material, the percentage ratio of each main component is：Table soil 40%, sandy loam
20%th, sand 40%, auxiliary element account for the percentage ratio of main component and are：Organic substance (cattle and sheep feces) 0.5%, modified straw
0.5%.The present embodiment is used to plant alfalfa as substrate, compared with sandy loam, phytomass increased 55%.
Example IV：Using the A formula of substitution tables soil material, the percentage ratio of each main component is：Table soil 40%, sandy loam
20%th, sand 40%, auxiliary element account for the percentage ratio of main component and are：Organic substance (cattle and sheep feces) 0.1%, modified straw
0.1%.The present embodiment is used to plant alfalfa as substrate, compared with sandy loam, phytomass increased 35%.
Fig. 1 is using the A formula of the present invention and using Growth of Alfalfa situation comparison diagram in sandy loam.(wherein scheme (a)
It is to plant alfalfa using sandy loam, figure (b) is three kinds of plant alfalfas of embodiment)
Embodiment five：Using the B formula of substitution tables soil material, predominant quantity percentage ratio is sandy loam 50%, sand
Soil 50%, auxiliary element accounts for main component percentage by weight and is：Organic matter 1%, modified straw 1%.Use the present embodiment conduct
Substrate plants alfalfa, and compared with sandy loam, phytomass increased 20%.
Embodiment six：Using the B formula of substitution tables soil material, predominant quantity percentage ratio is sandy loam 50%, sand
Soil 50%, auxiliary element accounts for main component percentage by weight and is：Organic matter 0.5%, modified straw 0.5%.Using the present embodiment
Alfalfa is planted as substrate, compared with sandy loam, phytomass increased 15%.
Embodiment seven：Using the B formula of substitution tables soil material, predominant quantity percentage ratio is sandy loam 33%, sand
Soil 67%, auxiliary element accounts for main component percentage by weight and is：Organic matter 1%, modified straw 1%.Use the present embodiment conduct
Substrate plants alfalfa, and compared with sandy loam, phytomass increased 15%.
Embodiment eight：Using the B formula of substitution tables soil material, predominant quantity percentage ratio is sandy loam 33%, sand
Soil 67%, auxiliary element accounts for main component percentage by weight and is：Organic matter 0.5%, modified straw 0.5%.Using the present embodiment
Alfalfa is planted as substrate, compared with sandy loam, phytomass increased 10%.
Fig. 2 is using the B formula of the present invention and using Growth of Alfalfa situation comparison diagram in sandy loam.(wherein scheme (a)
It is to plant alfalfa using sandy loam, figure (b) is five kinds of plant alfalfas of embodiment)
Embodiment nine：Using the C formula of substitution tables soil material, predominant quantity percentage ratio is sandy loam 40%, sand
Soil 40%, mixing soil 20%, auxiliary element account for main component percentage by weight and are：Organic substance 1%, modified straw 1%.Using this
Embodiment plants alfalfa as substrate, and compared with sandy loam, phytomass increased 25%.
Embodiment ten：Using the C formula of substitution tables soil material, predominant quantity percentage ratio is sandy loam 40%, sand
Soil 40%, mixing soil 20%, auxiliary element account for main component percentage by weight and are：Organic substance 0.5%, modified straw 0.5%.Make
Alfalfa is planted with the present embodiment as substrate, compared with sandy loam, phytomass increased 15%.
Embodiment 11：Using the C formula of substitution tables soil material, predominant quantity percentage ratio be sandy loam 50%,
Sand 25%, mixing soil 25%, auxiliary element account for main component percentage by weight and are：Organic substance 1%, modified straw 1%.Use
The present embodiment plants alfalfa as substrate, and compared with sandy loam, phytomass increased 20%.
Embodiment 12：Using the C formula of substitution tables soil material, predominant quantity percentage ratio be sandy loam 50%,
Sand 25%, mixing soil 25%, auxiliary element account for main component percentage by weight and are：Organic substance 0.5%, modified straw 0.5%.
The present embodiment is used to plant alfalfa as substrate, compared with sandy loam, phytomass increased 15%.
Fig. 3 is the C formula and Growth of Alfalfa situation comparison diagram in sandy loam using the present invention.(wherein figure (a) is to make
Alfalfa is planted with sandy loam, figure (b) is nine kinds of plant alfalfas of embodiment).
Claims (3)
1. a kind of substitution tables soil material for open coal mine, it is characterised in that main by main component:Table soil, sandy loam, sand
Soil and auxiliary element:Organic substance, modified straw are mixed, and each predominant quantity percentage ratio is table soil 34%-40%, Asia
Clay 20%-33%, sand 33%-40%, each auxiliary element account for the percentage ratio of main component gross weight and are：Organic substance 0.1%-
0.5%th, modified straw 0.1%-0.5%.
2. a kind of for open coal mine substitution tables soil material, it is characterised in that main by main component：Sandy loam, sand and auxiliary
Co-ingredients：Organic substance, modified straw are mixed, and each predominant quantity percentage ratio is sandy loam 33%-50%, sand
50%-67%, auxiliary element account for the percentage ratio of main component gross weight and are：Organic substance 0.5%-1%, modified straw 0.5%-
1%.
3. a kind of for open coal mine substitution tables soil material, it is characterised in that main by main component：Sandy loam, sand, mixing
Soil and auxiliary element：Organic substance, modified straw are mixed, each predominant quantity percentage ratio be sandy loam 40%-50%,
Sand 25%-40%, mixing soil 20%-25%, auxiliary element account for the percentage ratio of main component gross weight and are：Organic substance 0.5%-
1%th, modified straw 0.5%-1%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610909096.2A CN106489591A (en) | 2016-10-18 | 2016-10-18 | A kind of substitution tables soil material for open coal mine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610909096.2A CN106489591A (en) | 2016-10-18 | 2016-10-18 | A kind of substitution tables soil material for open coal mine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106489591A true CN106489591A (en) | 2017-03-15 |
Family
ID=58294383
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610909096.2A Pending CN106489591A (en) | 2016-10-18 | 2016-10-18 | A kind of substitution tables soil material for open coal mine |
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| Country | Link |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110934050A (en) * | 2019-11-21 | 2020-03-31 | 中煤科工集团沈阳设计研究院有限公司 | Surface soil substitute material based on opencast coal mine stripping material and preparation method thereof |
| CN111448867A (en) * | 2020-03-05 | 2020-07-28 | 中国地质调查局西安地质调查中心 | Method for land reclamation of waste rock soil based on open pit coal mine rock dumping field |
| CN112175625A (en) * | 2020-10-29 | 2021-01-05 | 中煤科工集团沈阳设计研究院有限公司 | Preparation and use methods of modifier for surface soil substitute material of opencast coal mine |
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| CN104082056A (en) * | 2014-07-01 | 2014-10-08 | 中国矿业大学(北京) | Screening method for replacing surface soil of strip mine reclamation |
| CN104429216A (en) * | 2014-12-17 | 2015-03-25 | 安徽理工大学 | Filling and reclamation technology for coal gangues without being covered by surface soil |
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|---|---|---|---|---|
| CN1669971A (en) * | 2005-04-08 | 2005-09-21 | 中国矿业大学（北京校区） | Coal base biological soil for replacing topsoil |
| CN103039147A (en) * | 2013-01-06 | 2013-04-17 | 中国矿业大学(北京) | Reclamation method for sunk paddy field caused by mining in mountainous regions |
| CN103299799A (en) * | 2013-05-14 | 2013-09-18 | 章梦涛 | Treatment method for recovering mine polluted land vegetation |
| CN104082056A (en) * | 2014-07-01 | 2014-10-08 | 中国矿业大学(北京) | Screening method for replacing surface soil of strip mine reclamation |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110934050A (en) * | 2019-11-21 | 2020-03-31 | 中煤科工集团沈阳设计研究院有限公司 | Surface soil substitute material based on opencast coal mine stripping material and preparation method thereof |
| CN111448867A (en) * | 2020-03-05 | 2020-07-28 | 中国地质调查局西安地质调查中心 | Method for land reclamation of waste rock soil based on open pit coal mine rock dumping field |
| CN112175625A (en) * | 2020-10-29 | 2021-01-05 | 中煤科工集团沈阳设计研究院有限公司 | Preparation and use methods of modifier for surface soil substitute material of opencast coal mine |
| CN112175625B (en) * | 2020-10-29 | 2021-11-19 | 中煤科工集团沈阳设计研究院有限公司 | Preparation and use methods of modifier for surface soil substitute material of opencast coal mine |
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