CN101176400A - New process for recultivating glebe in mine subsidence area - Google Patents
New process for recultivating glebe in mine subsidence area Download PDFInfo
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- CN101176400A CN101176400A CNA2006101143807A CN200610114380A CN101176400A CN 101176400 A CN101176400 A CN 101176400A CN A2006101143807 A CNA2006101143807 A CN A2006101143807A CN 200610114380 A CN200610114380 A CN 200610114380A CN 101176400 A CN101176400 A CN 101176400A
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Abstract
The invention relates to a new method for the land reclamation of mining cave-in areas, which is mainly characterized in that a drain hole is dug at the surface of a subsidence area to underground water layer, and the surface water of the subsidence area is discharged to the underground water layer through the drain hole. A borehole can be dug at the ground to the underground water layer, and the ground waterlogging is discharged to the underground water layer through the borehole. In general case, the water level of the underground water layer is lower than the lowest elevation of the surface subsidence area, and the ground waterlogging can flow to the borehole by gravity to be discharged to the underground water layer. If necessary, a water pump can be adopted to pump the waterlogging that can not flow to the borehole by gravity to the borehole to be discharged to the underground water layer. The invention has the advantages of simple and convenient construction, low cost, capability to restore the original soil ecological environment, economical and reasonable and good effects; thus the function of the method is not only land reclamation but also underground water storage, facilitating the protection of water resource.
Description
Technical field
The invention belongs to subsidence area land reclamation technical field, relate in particular to a kind of mine subsidence area land reclamation new method.
Background technology
There are many low-lying lands in earth surface, have plenty of natural, the somebody causes for factor, cause surface collapse as mine (mainly referring to the colliery) underground mining, when the face of land height after subsiding is lower than the topsoil phreatic table, or when rainfall ponding was difficult to drain in the subsidence area, original good farmland then can become marsh or lake.Do not say that for more and more precious land resources this is undoubtedly huge waste.Because subsidence area, many mines deflection is bigger, the subsidence area absolute altitude is far below peripheral face of land absolute altitude, and the irrigation canals and ditches draining is difficult to prove effective; Many subsidence areas scope of subsiding is big, and is if adopt draining cost height such as water pump, unreasonable economically.
Existing land reclamation technology mainly is to adopt the gangue refill mode: earlier toward subsidence area backfill spoil, and then on the spoil layer way of earth backing.The problem that this way exists mainly contains 3 points:
1, quantities is big, cost is high;
2, backfill gangue materials deficiency can't realize all backfill earth backing of subsidence area;
3, surperficial earth backing, soil property are difficult to ensure, are difficult to recover original ecological environment of soil.
Summary of the invention
The purpose of this invention is to provide a kind of mine subsidence area land reclamation new method, can construct simple and convenient, cost is low, can recover original ecological environment of soil, economical rationality, respond well.
The objective of the invention is to be achieved through the following technical solutions:
Subsidence area land reclamation new method in a kind of mine is beaten osculum to underground reservoir at the ground surface of subsidence area, and the surface pond of subsidence area is drained to underground reservoir by osculum.
Be provided with draining pump in the osculum porch, the surface pond of subsidence area is suppressed into underground reservoir.
In the osculum porch by ground surface to the sealing of hole steel pipe that is communicated with osculum that has preseting length.
Described sealing of hole steel pipe preseting length should meet the following conditions:
The preseting length of sealing of hole steel pipe should reach below the unconsolidated formation on stratum, and the water of avoiding ponding to flow into unconsolidated formation or unconsolidated formation flows in the osculum; Perhaps,
As comprising the mining layer between subsidence area ground surface and underground reservoir, then the preseting length of sealing of hole steel pipe should reach below the mining layer, and the water of avoiding ponding to flow into mining layer or mining layer flows in the osculum.
Described water-bearing layer comprises: thick limestone rock stratum, the strong river rising in Ningxia and flowing into central Shaanxi of limestone stream band, water guide tomography, fold axial region, Ordovician system ash rock stratum or Genesis of Karst Subsided Column.
Construct little dykes and dams around the described subsidence area, avoid the water outside the subsidence area to flow in the subsidence area.
Be provided with headrace in the described subsidence area,, import in the osculum by water channel with the ponding in the subsidence area.
As seen from the above technical solution provided by the invention, subsidence area land reclamation new method in a kind of mine of the present invention, its core is to beat osculum to underground reservoir at the ground surface of subsidence area, and the surface pond of subsidence area is drained to underground reservoir by osculum.Can drain excess surface water by boring to underground reservoir by the ground drilling hole to underground reservoir.Generally speaking, the water level of underground reservoir is lower than the minimum absolute altitude in surface subsidence district, and surface pond can flow automatically, and entering holes drains to underground reservoir.The ponding that also can adopt water pump to flow automatically if desired to enter boring is evacuated to drill hole and drains to underground reservoir.Construct simple and convenient, cost is low, can recover original ecological environment of soil, economical rationality, respond well.
Description of drawings
Fig. 1 is the embodiment reference diagram of mine of the present invention subsidence area land reclamation new method.
Embodiment
Introduce the mine earth formation earlier in order to understand technical scheme of the present invention.With coalfield, China North China is example, and general earth formation form is: topmost is the Quaternary system loose alluvium, is basement rock below the loose alluvium.Generally constitute at basement rock by sandstone, mud stone, shale and the limestone etc. that deposition forms.Contain the coal seam in the regional basement rock that has, mostly the coalfield, North China is what Permo-carboniferous period formed.Bottom in the coal seam, the general Ordovician limestone of depositing thick-layer of composing is called for short grieshoch difficult to understand, and plaster layer thickness difficult to understand is from tens meters to more than 1,000 meters, and grieshoch karst difficult to understand is grown, and moisture abundant, the Ordovician karst water position is generally far below face of land absolute altitude.So grieshoch difficult to understand is desirable underground drainage reservoir bed.
Subsidence area land reclamation new method in a kind of mine of the present invention, its core is to beat osculum to underground reservoir at the ground surface of subsidence area, and the surface pond of subsidence area is drained to underground reservoir by osculum.Can drain excess surface water by boring to underground reservoir by the ground drilling hole to underground reservoir.Generally speaking, the water level of underground reservoir is lower than the minimum absolute altitude in surface subsidence district, and surface pond can flow automatically, and entering holes drains to underground reservoir.The ponding that also can adopt water pump to flow automatically if desired to enter boring is evacuated to drill hole and drains to underground reservoir.
When being higher than the minimum absolute altitude of subsidence area, the face of land, can be pressed into boring, drain to underground by pump handle subsidence area surface pond as the water level of certain area or the underground reservoir in certain period.At this moment be provided with draining pump in the osculum porch, the surface pond of subsidence area is suppressed into underground reservoir.
Simultaneously in the osculum porch by ground surface to the sealing of hole steel pipe that is communicated with osculum that has preseting length.Add the sealing of hole steel pipe two effects arranged:
One, because of the underground unconsolidated formation that exists, the water that may flow into unconsolidated formation or unconsolidated formation at ponding in the process of underground drainage may flow in the osculum, influences drainage procedure.Preseting length as the sealing of hole steel pipe reaches below the unconsolidated formation on stratum, directly underground reservoir is introduced in excess surface water by the sealing of hole steel pipe, can prevent that excess surface water from flowing in the water inflow osculum of unconsolidated formation or unconsolidated formation.
Two, because of also there being mining layer (mining coal seam) more than the underground reservoir of subsidence area, the water that may flow into mining layer or mining layer at ponding in the process of underground drainage may flow in the osculum, influences drainage procedure.Preseting length as the sealing of hole steel pipe reaches below the mining layer, can prevent in the water inflow osculum of ponding inflow mining layer or mining layer.
Above-mentioned water-bearing layer comprises: thick limestone rock stratum, strong river rising in Ningxia and flowing into central Shaanxi stream band, water guide tomography, fold axial region, Ordovician system ash rock stratum or Genesis of Karst Subsided Column.
In order to guarantee that the subsidence area is subjected to the influence of surrounding area less, the water around preventing flows into the subsidence area, can be in described subsidence area around the fill dam, avoid in the water inflow subsidence area the subsidence area outside.Usually yes in the work progress can be to prevent the dykes and dams in the water inflow subsidence area outside the subsidence area erecting on every side of subsidence area.
Be that describe to the greatest extent by a step to the present invention for example with the coalfield, North China below:
The present invention is applied to coalfield, North China (the present invention is specially adapted to be located in the mining area in Plain), because the coal measure strata in coalfield, North China mostly is Permo-Carboniferous system, its underpart is distributing tens meters of thickness to the thick Ordovician system lime rock stratums (being called for short grieshoch difficult to understand) of an over thousands of rice, grieshoch karst cranny development difficult to understand, the water guide performance is strong, is the good water-bearing layer of draining surface water.Simultaneously, grieshoch water level difficult to understand generally is lower than the phreatic table of Quaternary system loose alluvium.So can flowing automatically, drains surface pond to grieshoch difficult to understand.
Advantage of the present invention is:
1, only need to bore the osculum of q.s, the land reclamation cost is lower than backfill method;
2, can realize all the reclaiming of soil in the subsidence area;
3, do not adopt back-filling way, can keep soil original structure and original ecosystem, be beneficial to crop growth;
Boring draining when 4, waterloging, boring is drawn water during drought, and the soil, subsidence area becomes the high yields irrespective of drought or water logging field;
5, Jiang Shui enters undergroundly, provides underground water new nourishment source, increased groundwater resources storage capacity and can the development and use amount;
6, along with social industrial and agricultural production development, groundwater resources development intensity will increase progressively, and the limestone height of water level will successively decrease, and this invents described method will have practical value and application prospect widely.
From the above mentioned, realize low cost, gross area, high-quality land reclamation, the peasant soil is lost and found again, and the soil reparations has been reduced in the mine, has increased groundwater resources.Economic benefit, particularly social benefit is huge, and popularizing application prospect is wide.And the present invention is also applicable to the transformation of low-lying land.
Embodiment, as shown in Figure 1, about 8 meters of certain mining area exploitation coal seam thickness, about 7 meters of surface subsidence district depth capacity, depth of accumulated water is about 4 meters in the subsidence area, ground elevation+47 meter, about 700 meters of coal measure strata bottom grey bed thickness difficult to understand, grieshoch difficult to understand crack karst is grown, transmissibility is strong, and grieshoch water level elevation difficult to understand is+34.0 meters, according to above-mentioned condition, the minimum absolute altitude in surface subsidence district, exploitation back is+40 meters, is higher than 6 meters of grieshoch water levels difficult to understand.So can realize gravity flow drains.
The above; only for the preferable embodiment of the present invention, but protection scope of the present invention is not limited thereto, and anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.
Claims (7)
1. mine subsidence area land reclamation new method is characterized in that:
Beat osculum to underground reservoir at the ground surface of subsidence area, the surface pond of subsidence area is drained to underground reservoir by osculum.
2. subsidence area land reclamation new method in a kind of mine according to claim 1 is characterized in that, is provided with draining pump in the osculum porch, and the surface pond of subsidence area is suppressed into underground reservoir.
3. subsidence area land reclamation new method in a kind of mine according to claim 1 and 2 is characterized in that, in the osculum porch by ground surface to the sealing of hole steel pipe that is communicated with osculum that has preseting length.
4. subsidence area land reclamation new method in a kind of mine according to claim 3 is characterized in that, described sealing of hole steel pipe preseting length should meet the following conditions:
The preseting length of sealing of hole steel pipe should reach below the unconsolidated formation on stratum, and the water of avoiding ponding to flow into unconsolidated formation or unconsolidated formation flows in the osculum; Perhaps,
As comprising the mining layer between subsidence area ground surface and underground reservoir, then the preseting length of sealing of hole steel pipe should reach below the mining layer, and the water of avoiding ponding to flow into mining layer or mining layer flows in the osculum.
5. subsidence area land reclamation new method in a kind of mine according to claim 1 and 2 is characterized in that described water-bearing layer comprises: thick limestone rock stratum, the strong river rising in Ningxia and flowing into central Shaanxi of limestone stream band, water guide tomography, fold axial region, Ordovician system ash rock stratum or Genesis of Karst Subsided Column.
6. subsidence area land reclamation new method in a kind of mine according to claim 1 and 2 is characterized in that, constructs little dykes and dams on every side in described subsidence area, avoids the water outside the subsidence area to flow in the subsidence area.
7. subsidence area land reclamation new method in a kind of mine according to claim 1 and 2 is characterized in that, is provided with headrace in the described subsidence area, with the ponding in the subsidence area, imports in the osculum by water channel.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2006101143807A CN101176400B (en) | 2006-11-08 | 2006-11-08 | New process for recultivating glebe in mine subsidence area |
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| CN2006101143807A CN101176400B (en) | 2006-11-08 | 2006-11-08 | New process for recultivating glebe in mine subsidence area |
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| CN101176400A true CN101176400A (en) | 2008-05-14 |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101953245A (en) * | 2010-08-13 | 2011-01-26 | 中国矿业大学(北京) | Reclamation method of subsided farm land after earthquake disaster |
| CN102067752A (en) * | 2010-09-29 | 2011-05-25 | 成松桥 | Perforation water storage method for improving stratum water storage capacity, increasing groundwater resources and preventing drought |
| CN102204433A (en) * | 2011-05-16 | 2011-10-05 | 江西省水利规划设计院 | Tiling-process cultivated soil protection construction method for land consolidation and field raise engineering |
| CN102380506A (en) * | 2011-09-26 | 2012-03-21 | 中山大学 | Method for reclaiming heavy metal-polluted soil |
| CN102678124A (en) * | 2012-05-29 | 2012-09-19 | 武汉科技大学 | Method for back-filling surface subsidence area based on underground metal mineral deposit mining |
| CN102918950A (en) * | 2012-10-26 | 2013-02-13 | 中国矿业大学(北京) | Method for determining reclamation construction sensitive area in coal mining subsidence land |
| CN103867229A (en) * | 2014-03-12 | 2014-06-18 | 河北煤炭科学研究院 | Coal mine large-mining-depth and next-group coal exploitation water control comprehensive treatment method |
| CN104686003A (en) * | 2014-12-30 | 2015-06-10 | 中国矿业大学 | Reconstruction method of reclaimed soil profile in coal mining subsidence area |
| CN106285571A (en) * | 2016-09-29 | 2017-01-04 | 江苏省水利科学研究院 | A kind of pre-mining system of water resources in coal mines subregion and method |
| CN106285683A (en) * | 2016-08-18 | 2017-01-04 | 沈阳农业大学 | Mine reclamation stores water pumping method bottom openpit or Subsidence Area |
| CN107506953A (en) * | 2017-10-12 | 2017-12-22 | 北京蓝尊科技有限公司 | A kind of Collapse by Mining ground environment remediation decision-making assistant information acquisition methods |
| CN108243647A (en) * | 2018-01-08 | 2018-07-06 | 西安科技大学 | The new method that a kind of Midwest coal field dynamic is reclaimed in advance |
| CN110431951A (en) * | 2019-08-14 | 2019-11-12 | 煤炭科学研究总院 | A kind of opencut saves the land reclamation method of water resource |
| CN112806124A (en) * | 2021-01-05 | 2021-05-18 | 神华神东煤炭集团有限责任公司 | Construction method for constructing vegetation pit in coal mining subsidence area |
| CN113432322A (en) * | 2021-07-02 | 2021-09-24 | 山东科技大学 | Comprehensive utilization method and test equipment for surface water, goaf and geothermal heat of coal mining subsidence area |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1063518C (en) * | 1995-12-26 | 2001-03-21 | 张朝喜 | Drainage cut-off (deep ditch high-building method) drainage and supplying optimization combination for preventing and harnessing groud water |
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2006
- 2006-11-08 CN CN2006101143807A patent/CN101176400B/en not_active Expired - Fee Related
Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101953245A (en) * | 2010-08-13 | 2011-01-26 | 中国矿业大学(北京) | Reclamation method of subsided farm land after earthquake disaster |
| CN102067752A (en) * | 2010-09-29 | 2011-05-25 | 成松桥 | Perforation water storage method for improving stratum water storage capacity, increasing groundwater resources and preventing drought |
| CN102204433A (en) * | 2011-05-16 | 2011-10-05 | 江西省水利规划设计院 | Tiling-process cultivated soil protection construction method for land consolidation and field raise engineering |
| CN102380506A (en) * | 2011-09-26 | 2012-03-21 | 中山大学 | Method for reclaiming heavy metal-polluted soil |
| CN102678124A (en) * | 2012-05-29 | 2012-09-19 | 武汉科技大学 | Method for back-filling surface subsidence area based on underground metal mineral deposit mining |
| CN102678124B (en) * | 2012-05-29 | 2014-05-21 | 武汉科技大学 | Method for back-filling surface subsidence area based on underground metal mineral deposit mining |
| CN102918950A (en) * | 2012-10-26 | 2013-02-13 | 中国矿业大学(北京) | Method for determining reclamation construction sensitive area in coal mining subsidence land |
| CN102918950B (en) * | 2012-10-26 | 2015-04-01 | 中国矿业大学(北京) | Method for determining reclamation construction sensitive area in coal mining subsidence land |
| CN103867229A (en) * | 2014-03-12 | 2014-06-18 | 河北煤炭科学研究院 | Coal mine large-mining-depth and next-group coal exploitation water control comprehensive treatment method |
| CN104686003A (en) * | 2014-12-30 | 2015-06-10 | 中国矿业大学 | Reconstruction method of reclaimed soil profile in coal mining subsidence area |
| CN106285683B (en) * | 2016-08-18 | 2018-12-04 | 沈阳农业大学 | Openpit or Subsidence Area bottom store water pumping method in mine reclamation |
| CN106285683A (en) * | 2016-08-18 | 2017-01-04 | 沈阳农业大学 | Mine reclamation stores water pumping method bottom openpit or Subsidence Area |
| CN106285571B (en) * | 2016-09-29 | 2018-11-30 | 江苏省水利科学研究院 | A kind of pre- mining system of water resources in coal mines subregion and method |
| CN106285571A (en) * | 2016-09-29 | 2017-01-04 | 江苏省水利科学研究院 | A kind of pre-mining system of water resources in coal mines subregion and method |
| CN107506953A (en) * | 2017-10-12 | 2017-12-22 | 北京蓝尊科技有限公司 | A kind of Collapse by Mining ground environment remediation decision-making assistant information acquisition methods |
| CN108243647A (en) * | 2018-01-08 | 2018-07-06 | 西安科技大学 | The new method that a kind of Midwest coal field dynamic is reclaimed in advance |
| CN110431951A (en) * | 2019-08-14 | 2019-11-12 | 煤炭科学研究总院 | A kind of opencut saves the land reclamation method of water resource |
| CN112806124A (en) * | 2021-01-05 | 2021-05-18 | 神华神东煤炭集团有限责任公司 | Construction method for constructing vegetation pit in coal mining subsidence area |
| CN113432322A (en) * | 2021-07-02 | 2021-09-24 | 山东科技大学 | Comprehensive utilization method and test equipment for surface water, goaf and geothermal heat of coal mining subsidence area |
| CN113432322B (en) * | 2021-07-02 | 2022-07-19 | 山东科技大学 | Comprehensive utilization method and test equipment for surface water, goaf and geothermal heat of coal mining subsidence area |
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