CN113026770A - Ecological management method for coal gangue dump - Google Patents
Ecological management method for coal gangue dump Download PDFInfo
- Publication number
- CN113026770A CN113026770A CN202110234112.3A CN202110234112A CN113026770A CN 113026770 A CN113026770 A CN 113026770A CN 202110234112 A CN202110234112 A CN 202110234112A CN 113026770 A CN113026770 A CN 113026770A
- Authority
- CN
- China
- Prior art keywords
- coal gangue
- vegetation
- slope
- dump
- planting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/20—Securing of slopes or inclines
-
- 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
- A01G17/00—Cultivation of hops, vines, fruit trees, or like trees
- A01G17/005—Cultivation methods
-
- 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
- A01G22/00—Cultivation of specific crops or plants not otherwise provided for
-
- 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
- A01G24/20—Growth substrates; Culture media; Apparatus or methods therefor based on or containing natural organic material
-
- 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
- A01G24/20—Growth substrates; Culture media; Apparatus or methods therefor based on or containing natural organic material
- A01G24/22—Growth substrates; Culture media; Apparatus or methods therefor based on or containing natural organic material containing plant material
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/20—Securing of slopes or inclines
- E02D17/202—Securing of slopes or inclines with flexible securing means
Abstract
The invention discloses a method for ecologically treating a coal gangue dump, which comprises the steps of finishing and stably reinforcing a coal gangue dump slope, constructing a vegetation concrete gap-filling reinforcing layer, constructing a planting base material layer, constructing a three-dimensional vegetation system and the like, and specifically comprises the following implementation steps: leveling the gangue dump through a slope surface, building a drainage collecting structure on the slope surface according to the trend, and reinforcing the slope foot by adopting a dry-laid gabion mesh; spraying vegetation concrete on the stabilized coal gangue hill, filling gaps of the coal gangue, reinforcing a slope body and adjusting acid-base balance; and then covering planting soil on the coal gangue mountain, spraying and sowing a soil substrate layer after compacting the planting soil layer, paving an environment-friendly plant fiber blanket, finally spraying and sowing a plant seed layer on the plant fiber blanket, planting trees and shrubs, and forming a tree, shrub and grass stereoscopic vegetation system on the mountain top and the slope of the coal gangue. The invention solves the problems of dust pollution, spontaneous combustion explosion, landslide and the like caused by the coal gangue hill and realizes the aim of improving the ecological environment.
Description
Technical Field
The invention relates to the field of mine ecological management, in particular to an ecological management method for a coal gangue dump.
Background
The existing gangue dump of coal mines in China has more than 1500 seats, the accumulation amount is more than 30 hundred million tons (accounting for more than 40 percent of the total amount of discharged solid wastes of China industry), and the resource utilization rate of the gangue is not high due to the bottleneck of technical development so far. The technology is incomplete, the regional development is unbalanced, and the influence on the environment is still serious. The coal gangue accumulated in a large amount has the following hazards:
(1) occupies polluted land. A large amount of stacked coal gangue occupies a large amount of land area on one hand, and on the other hand, the land resource larger than the stacked area is influenced, so that the surrounding cultivated land becomes barren and cannot be utilized.
(2) Polluting the atmosphere. The open stacking of the coal gangue generates a large amount of dust, which is mainly because the coal gangue stacked on the ground is weathered and crushed after being exposed to the sun and rain for a long time; in addition, the coal gangue can be disintegrated after absorbing water, so that dust is easily generated. The quality of the atmosphere in the mine will be deteriorated by the wind.
(3) Landslide. When the waste rocks in a waste rock storage yard are stacked unreasonably, the waste rock hills are prone to side slope instability, so that the waste rock hills collapse and slide, and particularly in heavy rain, the phenomenon is particularly common in mountainous areas and is prone to debris flow.
(4) Nature and explosion. The coal gangue contains combustible substances such as residual coal, carbonaceous mudstone, waste wood and the like, wherein C, S can form the material basis of spontaneous combustion of the coal gangue. The gangue is piled in the open air, and the heat in the gangue dump is gradually accumulated after the gangue accumulates day and month. When the temperature reaches the combustion point of the combustible materials, the residual coal in the gangue pile can be spontaneously combusted. After spontaneous combustion, the internal temperature of the gangue dump is 800-1000 ℃, SO that the gangue is fused and bonded, and a large amount of harmful gases such as CO, CO2, SO2, H2S and NOx are released, wherein SO2 is the main gas. Meanwhile, the nature of the coal gangue is easy to cause fire and even explosion accidents.
In the period of low comprehensive utilization technology level of the coal gangue, in order to reduce the environmental pollution of the coal gangue and reduce fire explosion and landslide accidents, the ecological management of the coal gangue dump can control the invasion of the gangue dump to peripheral soil, reduce dust pollution and increase the green land area of a mining area, thereby greatly improving the environment of the mining area. And the vegetation recovery can also greatly reduce the spontaneous combustion rate of the gangue, thereby reducing the risk of fire and explosion. The gangue dump does not have basic conditions for plant survival, so that measures for manual intervention are needed for recovering vegetation in the gangue dump to provide base materials required by plant growth.
The patent with the publication number of CN102561366 discloses a vegetation recovery technology for coal gangue dump in mining area, which comprises slope stabilizing measures, gangue dump compacting and finishing measures, a substrate layer is provided for planting vegetation by covering soil on the slope and improving the substrate, the technology of terrace type plant planting is described in detail, and the planting process of amorpha fruticosa on the slope is introduced. From engineering practice experience, soil erosion is still serious when only soil covering is adopted on the slope, and the problem is particularly prominent before a vegetation protection layer is formed. In addition, the plant variety selected in the technology disclosed in the patent is single and is difficult to form a stable ecosystem by the waste rock mountain
Disclosure of Invention
The invention aims to provide a method for ecologically treating a coal gangue dump so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
an ecological management method for a coal gangue dump comprises the following steps:
(1) leveling a slope surface, building a grading platform, building a drainage structure, and reinforcing a slope toe by adopting a dry-laid gabion net.
(2) And spraying vegetation concrete to perform gap filling and reinforcing treatment on the mountain.
(3) Constructing a planting substrate layer, covering planting soil, spraying a substrate layer with foreign soil, and paving a plant fiber blanket.
(4) Spraying and broadcasting herbaceous seeds on the plant fiber blanket, and planting shrubs and trees in holes.
(5) And (5) vegetation maintenance management.
Further, the coal gangue dump side slope is leveled in the step (1), a mountain body with the height exceeding 20 m is subjected to grading treatment, the height of each grade is 10-15 m, the width of the platform is 3-4 m, and the slope gradient after leveling is smaller than 45 degrees.
Furthermore, the step (1) of building a drainage collecting structure is that a water retaining wall with the width of 1.5-2 meters and the height of 1-1.5 meters is built on the top of the slope, drainage ditches are built on the slope surface every 30-40 meters, the width of each drainage ditch is 0.8-1.5 meters, the depth of each drainage ditch is 0.8 meter, and the drainage ditches are communicated with the water retaining wall.
Further, the slope toe in the step (1) is reinforced by a dry masonry cage net, the height is 0.8-1.2 m, and the width is 0.6-1 m.
Further, the thickness of the vegetation concrete gap-filling reinforcing layer in the step (2) is 5-8 cm, the vegetation concrete gap-filling reinforcing layer is composed of cement, planting soil, a vegetation concrete additive A and a vegetation concrete additive B, and the weight percentages of the components are 78-85, 5-10, 3-6 and 4-6 respectively.
Further, the thickness of the planting soil covered in the step (3) is 20-30 cm; the thickness of the foreign soil spray-seeding matrix layer is 8-12cm, and the foreign soil spray-seeding matrix layer is composed of planting soil, humus, plant fiber, an adhesive, a water-retaining agent, a compound fertilizer and the like according to a proportion; the specification of the plant fiber blanket is 200 plus 300 grams per square meter.
Further, the gangue dump in the step (4) forms a three-dimensional vegetation system formed by arbor, shrub and grass, and the drainage structures cover the vegetation to form a flexible structure.
Further, the survival rate of the vegetation is guaranteed through scientific management and maintenance in the step (5), and the vegetation coverage requirement is met.
Compared with the prior art, the invention has the following beneficial effects:
aiming at the coal gangue hill which is seriously polluted and has potential safety hazards, the invention comprehensively applies technical measures such as water and soil conservation, artificial base materials, ecological construction and the like, reduces the soil pollution and dust pollution of the coal gangue, reduces the potential safety hazards such as landslide, natural explosion and the like, and realizes the vegetation recovery and ecological management of the gangue hill. The landslide is prevented by water and soil conservation measures such as mountain reinforcement, geotechnical structures and geotechnical materials, a necessary substrate layer is provided for plant growth by covering alien soil and spraying the substrate, a tree, shrub and grass three-dimensional vegetation system is constructed, the vegetation recovery further promotes the stability of the mountain, and finally ecological management is realized.
Drawings
FIG. 1 is a schematic structural diagram of a coal gangue dump after vegetation recovery by the coal gangue vegetation recovery method of the invention;
FIG. 2 is a schematic view of an interface of a drainage channel on a slope in the step (1) of implementing the method for recovering vegetation from coal gangue according to the present invention;
fig. 3 is a schematic diagram of slope grading in the step (1) implemented by the method for recovering vegetation from coal gangue.
In the figure, 1 is a coal gangue layer, 2 is a vegetation concrete gap filling reinforcing layer, 3 is a covering soil layer, 4 is a foreign soil spray-seeding layer, 5 is a plant fiber blanket, 6 is a herbaceous plant, 7 is a shrub, 8 is a tree, 9 is a water retaining wall, 10 is a dry masonry cage net, and 11 is a grading platform.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Example 1
As shown in fig. 1, when the height of the gangue dump is less than 20 m, the method for ecologically treating the gangue dump in the embodiment comprises the following implementation steps:
(1) and (4) finishing the gangue dump. Comprehensively considering factors such as floor area occupation, transfer engineering quantity and the like, sorting the scattered and piled waste rocks, and flattening the slope surface of the mountain, wherein the gradient is less than 45 degrees; constructing a water retaining wall by utilizing coal gangue at the top of the slope, wherein the width of the water retaining wall is 1.5-2 meters, and the height of the water retaining wall is 1-1.5 meters; and (3) constructing drainage ditches at intervals of 30-40 meters in a transverse mode, wherein the width of each drainage ditch is 0.8-1.5 meters, the depth of each drainage ditch is 0.8 meter, the section structure of each drainage ditch is shown in figure 2, and the drainage ditches are built from the tops of slopes to the slopes and connected with slope foot drainage facilities. The waste rock pile slope foot is reinforced by a dry masonry cage net, the height is 0.8-1.2 m, the width is 0.6-1 m, and landslide is prevented. (2) And a vegetation concrete gap filling reinforcing layer. The vegetation concrete is composed of cement, planting soil, a vegetation concrete additive A and a vegetation concrete additive B, the weight percentages of the components are respectively 78-85, 5-10, 3-6 and 4-6, water is added, the mixture is uniformly stirred and then sprayed to a slope surface by a high-pressure pump, and coal gangue pores are filled until the slope surface forms a vegetation concrete layer with the thickness of 5-8 cm.
(3) And constructing a planting substrate layer. Firstly, covering planting soil on a slope and a mountain platform, wherein the thickness of foreign soil on the slope is not less than 20cm, and the thickness of covered soil on the mountain platform is not less than 30 cm; then uniformly spraying a matrix layer prepared according to a proportion onto a mountain body by adopting a foreign soil spraying technology, wherein the thickness of the matrix layer reaches 8-12cm, the matrix is composed of planting soil, humus, plant fiber, an adhesive, a water-retaining agent, a compound fertilizer and the like, an appropriate mixing ratio is selected according to the situation of the planting soil, and the matrix layer has the characteristics of water retention, scouring resistance and nutrient substance slow release and can provide long-acting nutrient supply for vegetation growth; then, a plant fiber blanket is laid on the matrix layer, the specification is 200 plus 300 g/square meter, and the water and soil conservation and temperature regulation effects are achieved.
(4) And (4) planting the plants. Planting arbors and shrubs on the top platform in a hole planting mode, and manually broadcasting herbaceous plant seeds; a herbaceous seed layer is sprayed on the slope surface by adopting an alien soil spraying technology, shrubs are planted in holes, plants mainly comprise local species, and a small amount of landscape plants are matched.
(5) And (5) managing and maintaining. The slope body is usually lack of water and is easy to wash, and after the plants are planted, the management and maintenance are required to be enhanced in the early stage, so that the germination rate of seeds and the survival rate of transplanted plants are ensured.
Example 2
As shown in fig. 3, when the height of the gangue dump reaches more than 20 m, the ecological management method for the gangue dump in the embodiment includes the following implementation steps:
(1) and (6) finishing the side slope. Grading the waste rock hills (as shown in fig. 3), wherein each 10-15 m is one grade, and an operation platform is built among all the grades, and the width of the operation platform is 3-4 m; the slope surface is finished and leveled, and the slope is less than 45 degrees; constructing a water retaining wall by utilizing coal gangue at the top of the slope, wherein the width of the water retaining wall is 1.5-2 meters, and the height of the water retaining wall is 1-1.5 meters; and (3) constructing drainage ditches at intervals of 30-40 meters in a transverse mode, wherein the width of each drainage ditch is 0.8-1.5 meters, the depth of each drainage ditch is 0.8 meter, the section structure of each drainage ditch is shown in figure 2, the drainage ditches are built from the top of a slope to the toe of the slope, and the drainage ditches among all levels are communicated and connected with the toe drainage facility. And (3) reinforcing each grade of slope toe of the gangue pile by adopting a dry masonry cage net, wherein the height is 0.8-1.2 m, and the width is 0.6-1 m, so that landslide is prevented.
(2) The subsequent steps were the same as in (2) to (5) of example 1.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. An ecological management method for a coal gangue dump comprises the following steps:
(1) leveling a slope surface, building a grading platform, building a drainage structure, and reinforcing a slope toe by adopting a dry-laid gabion net;
(2) spraying vegetation concrete to perform gap filling and reinforcing treatment on the mountain;
(3) constructing a planting substrate layer, covering planting soil, spraying a substrate layer with foreign soil, and paving a plant fiber blanket;
(4) spraying and broadcasting herbaceous seeds on the plant fiber blanket, and planting shrubs and arbors in holes;
(5) and (5) vegetation maintenance management.
2. The ecological management method for the coal gangue dump as claimed in claim 1, wherein in the step (1), the side slope of the coal gangue dump is leveled, the mountain body with the height of more than 20 m is subjected to grading treatment, the height of each grade is 10-15 m, the width of the platform is 3-4 m, and the slope gradient after leveling is less than 45 degrees.
3. The ecological management method for the coal gangue dump as claimed in claim 1, wherein the step (1) is implemented by building drainage structures, building water retaining walls with the width of 1.5-2 m and the height of 1-1.5 m on the top of the slope, building drainage ditches on the slope surface every 30-40 m, and communicating the drainage ditches with the width of 0.8-1.5 m and the depth of 0.8 m with the water retaining walls.
4. The ecological management method for the coal gangue dump as claimed in claim 1, wherein the slope toe in the step (1) is reinforced by a dry masonry cage net, the height is 0.8-1.2 m, and the width is 0.6-1 m.
5. The ecological management method for the coal gangue dump according to claim 1, wherein the thickness of the vegetation concrete gap-filling reinforcement layer in the step (2) is 5-8 cm, the vegetation concrete gap-filling reinforcement layer is composed of cement, planting soil, a vegetation concrete additive A and a vegetation concrete additive B, and the weight percentages of the components are 78-85, 5-10, 3-6 and 4-6 respectively.
6. The ecological management method for the coal gangue dump as claimed in claim 1, wherein the step (3) is carried out by covering planting soil with a thickness of 20-30 cm; the thickness of the foreign soil spray-seeding matrix layer is 8-12cm, and the foreign soil spray-seeding matrix layer is formed by mixing planting soil, humus, plant fiber, an adhesive, a water-retaining agent, a compound fertilizer and the like according to a proportion; the specification of the plant fiber blanket is 200 plus 300 grams per square meter.
7. The method for recovering vegetation from coal gangue according to claim 1, wherein the gangue dump in the step (4) forms a three-dimensional vegetation system consisting of arbor, shrub and grass, and drainage structures cover vegetation to form a flexible structure.
8. The method for recovering vegetation from coal gangue according to claim 1, wherein the survival rate of vegetation is guaranteed through scientific management and maintenance in the step (5), and the vegetation coverage requirement is met.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110234112.3A CN113026770A (en) | 2021-03-03 | 2021-03-03 | Ecological management method for coal gangue dump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110234112.3A CN113026770A (en) | 2021-03-03 | 2021-03-03 | Ecological management method for coal gangue dump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113026770A true CN113026770A (en) | 2021-06-25 |
Family
ID=76465671
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110234112.3A Pending CN113026770A (en) | 2021-03-03 | 2021-03-03 | Ecological management method for coal gangue dump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113026770A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113774934A (en) * | 2021-10-08 | 2021-12-10 | 中核大地勘察设计有限公司 | Ecological restoration method for coal gangue slag slope |
| CN113914265A (en) * | 2021-10-21 | 2022-01-11 | 内蒙古胜宇建设有限公司 | Waste ditch ecological restoration and treatment method based on coal gangue filling technology |
| CN113940166A (en) * | 2021-10-09 | 2022-01-18 | 金隅星节能保温科技(唐山)有限公司 | Method for applying ecological porous cellucotton to mountain afforestation |
| CN114303768A (en) * | 2021-12-10 | 2022-04-12 | 四川大学 | Planting substrate for recovering vegetation in slag field and vegetation recovery construction method thereof |
| CN114809033A (en) * | 2022-04-18 | 2022-07-29 | 内蒙古蒙草土壤科技有限责任公司 | Ecological base material spray-seeding construction process for ecological reconstruction of coal mining subsidence area |
| CN116267079A (en) * | 2023-03-22 | 2023-06-23 | 美丽华夏生态环境科技有限公司 | Method for recovering vegetation of coal gangue mountain by using starch-based biodegradable plant-growing bag |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202652889U (en) * | 2012-06-18 | 2013-01-09 | 苗世龙 | Spontaneous combustion coal gangue mountain comprehensive treatment system |
| CN105392760A (en) * | 2013-04-30 | 2016-03-09 | 哈斯科公司 | Coal refuse remediation process |
| CN107382608A (en) * | 2017-07-25 | 2017-11-24 | 北京华夏绿洲生态环境工程有限公司 | A kind of vegetation is multiple green to sow grass seeds by duster auxiliary material, sow grass seeds by duster material and the multiple green construction method of vegetation without native composite fibre |
| CN108609986A (en) * | 2018-05-16 | 2018-10-02 | 辽宁大学 | A kind of preparation method and application of the eco-concrete based on discarded gangue |
| CN109328518A (en) * | 2018-08-20 | 2019-02-15 | 江苏绿岩生态技术股份有限公司 | A kind of ecological restoring method of Gangue Hill |
| CN109763499A (en) * | 2019-01-07 | 2019-05-17 | 四川川煤华荣能源股份有限公司 | For big height difference, the comprehensive processing method of abrupt slope drop coal gangue hill |
| CN110984188A (en) * | 2019-12-06 | 2020-04-10 | 安徽师范大学 | Comprehensive treatment process for waste rock hill |
-
2021
- 2021-03-03 CN CN202110234112.3A patent/CN113026770A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202652889U (en) * | 2012-06-18 | 2013-01-09 | 苗世龙 | Spontaneous combustion coal gangue mountain comprehensive treatment system |
| CN105392760A (en) * | 2013-04-30 | 2016-03-09 | 哈斯科公司 | Coal refuse remediation process |
| US20160304408A1 (en) * | 2013-04-30 | 2016-10-20 | Harsco Corporation | Coal refuse remediation process |
| CN107382608A (en) * | 2017-07-25 | 2017-11-24 | 北京华夏绿洲生态环境工程有限公司 | A kind of vegetation is multiple green to sow grass seeds by duster auxiliary material, sow grass seeds by duster material and the multiple green construction method of vegetation without native composite fibre |
| CN108609986A (en) * | 2018-05-16 | 2018-10-02 | 辽宁大学 | A kind of preparation method and application of the eco-concrete based on discarded gangue |
| CN109328518A (en) * | 2018-08-20 | 2019-02-15 | 江苏绿岩生态技术股份有限公司 | A kind of ecological restoring method of Gangue Hill |
| CN109763499A (en) * | 2019-01-07 | 2019-05-17 | 四川川煤华荣能源股份有限公司 | For big height difference, the comprehensive processing method of abrupt slope drop coal gangue hill |
| CN110984188A (en) * | 2019-12-06 | 2020-04-10 | 安徽师范大学 | Comprehensive treatment process for waste rock hill |
Non-Patent Citations (1)
| Title |
|---|
| 张伟元: "矸石山多元化生态修复技术研究与应用", 《煤炭与化工》 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113774934A (en) * | 2021-10-08 | 2021-12-10 | 中核大地勘察设计有限公司 | Ecological restoration method for coal gangue slag slope |
| CN113940166A (en) * | 2021-10-09 | 2022-01-18 | 金隅星节能保温科技(唐山)有限公司 | Method for applying ecological porous cellucotton to mountain afforestation |
| CN113914265A (en) * | 2021-10-21 | 2022-01-11 | 内蒙古胜宇建设有限公司 | Waste ditch ecological restoration and treatment method based on coal gangue filling technology |
| CN114303768A (en) * | 2021-12-10 | 2022-04-12 | 四川大学 | Planting substrate for recovering vegetation in slag field and vegetation recovery construction method thereof |
| CN114809033A (en) * | 2022-04-18 | 2022-07-29 | 内蒙古蒙草土壤科技有限责任公司 | Ecological base material spray-seeding construction process for ecological reconstruction of coal mining subsidence area |
| CN116267079A (en) * | 2023-03-22 | 2023-06-23 | 美丽华夏生态环境科技有限公司 | Method for recovering vegetation of coal gangue mountain by using starch-based biodegradable plant-growing bag |
| CN116267079B (en) * | 2023-03-22 | 2024-01-02 | 美丽华夏生态环境科技有限公司 | Method for recovering vegetation of coal gangue mountain by using starch-based biodegradable plant-growing bag |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113026770A (en) | Ecological management method for coal gangue dump | |
| CN103636404B (en) | Method for conversing water and earth of high-altitude large-temperature difference drought and dry-hot valley high-abrupt slope waste slag body | |
| CN108532580A (en) | A kind of hillock eco-environment restoration comprehensive processing method | |
| CN109566290A (en) | A kind of Mine production side slope vegetation restorative procedure | |
| CN111021375A (en) | Recovery and treatment method for mine geological environment | |
| KR20220123696A (en) | Restoration management method of coal waste-rock stockyard using coal-based solid waste | |
| CN110984189A (en) | Slope ecological restoration system and method | |
| CN102251775A (en) | Ecological restoration method for coal gangue dump | |
| CN110984188B (en) | Comprehensive treatment process for waste rock hill | |
| CN105839649A (en) | Ecological restoration method for metal mine waste storage yard | |
| CN112323828A (en) | Green mine side slope broken stone beach treatment method | |
| CN113875344A (en) | Ecological restoration method for coal mine mountain geological environment | |
| CN114223344A (en) | Frozen soil layer repairing method for alpine mining area in plateau | |
| CN101144280A (en) | Efflorescence granite slope green safeguard structure system and construction method thereof | |
| CN110424421A (en) | Abandoned mine raised fields goes along with sb. to guard him ecological restoring method | |
| CN113396795B (en) | Foreign soil and soil layer structure based on river and lake bottom mud and phosphorite solid waste and preparation method | |
| CN109005722B (en) | Comprehensive reclamation method for land reclamation of iron ore waste stone yard | |
| CN114032874A (en) | Trench land remediation structure and method for loess plateau trench reclamation | |
| CN104294830A (en) | Side slope ecological protection and recovery method and arrangement structure | |
| CN213819073U (en) | Be used for prosthetic grass planting brick of tombarthite tailing and tombarthite tailing environment to restore structure | |
| CN113774934A (en) | Ecological restoration method for coal gangue slag slope | |
| CN108990458B (en) | Method for large-scale disposal and utilization of waste such as coal gangue and treatment of stony desertification | |
| CN207211070U (en) | Fish-scale pit biology protective slope structure | |
| CN113529754B (en) | Granular-body slope ecological slope protection structure and construction method | |
| CN114438992A (en) | Method for restoring and treating geological environment of abandoned mine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |