CN204783111U - Structure is backfilled to abandonment colliery shaft - Google Patents
Structure is backfilled to abandonment colliery shaft Download PDFInfo
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- CN204783111U CN204783111U CN201520443577.XU CN201520443577U CN204783111U CN 204783111 U CN204783111 U CN 204783111U CN 201520443577 U CN201520443577 U CN 201520443577U CN 204783111 U CN204783111 U CN 204783111U
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Abstract
The utility model discloses a structure is backfilled to abandonment colliery shaft, including planting soil layer, argillic horizon, second floor gangue layer, concrete layer, first layer gangue layer, it arranges in proper order to plant soil layer, argillic horizon, second floor gangue layer, concrete layer, first layer gangue layer top -down. The utility model has the advantages that: be applicable to the circumstances that coal mining mining area gangue and discarded mine coexist simultaneously, changing waste into valuables mainly fills out a material that seals discarded mine with the gangue conduct, and sealing material is crammed in the concrete conduct, clay conduct recovering ecological environment dielectric material, and when the abandonment mine can be dealt carefully with, the related problem of gangue initiation was also effectively solved.
Description
Technical field
The utility model relates to a kind of discarded coal mine shaft backfill technology.
Background technology
Reform and opening-up is over 30 years, and Chinese national economy obtains fast development, and a large amount of mineral resources are developed and support for economic development, and arise at the historic moment in many cities with resource-based economies thus.But along with the exhaustion of resource, this type of area faces the negative issues such as mine geology environmental disruption.
For Coal Mining Area, the problems referred to above are particularly outstanding.The mine geological environment negative effect that coal mining activity causes, cause a series of Environmental Problems in Mines, be mainly manifested in following several respects: to mine and in coal separation process, the stacking (Gangue, hillock) of the Mine Solid Wastes such as the gangue that discharges not only takies a large amount of land resources, also may cause the geological disaster such as avalanche, landslide simultaneously, seriously pollute surrounding enviroment; For well lane engineering such as the abandoned mine of mining activity service has become the passage of drainage Quaternary aquifer, and descend coal mining activities synergistically and adopt rock to move the storage and recurrent state that change underground water and surface water; The straight bare area table of abandoned mine, threatens Residents in Mining Area life, property safety, has become very important dangerous matter sources.
Traditional filling sandfilling method process abandoned mine there will be the settlement crater and " cavitation corrosion " mine that are formed because of consolidation settlement or current scour effect, becomes secondary dangerous matter sources.
Utility model content
The purpose of this utility model is to provide a kind of effective discarded coal mine shaft backfill technology, in order to solve the deficiency of conventional method.The purpose of this utility model is achieved through the following technical solutions:
Envelope quality is filled out for what ensure mine sealing material, make to fill out closure material soil layer around the borehole wall to be effectively combined, eliminate the potential safety hazard of exposed discarded vertical shaft, adopt gangue, clay and concrete etc. to fill out closure material to implement to fill out envelope along the axial sectional of vertical shaft, make full use of various characteristic of filling out closure material, matched combined is filled out envelope and is administered, can the packing quality of effective guarantee vertical shaft.Concrete structure is:
A kind of discarded coal mine shaft backfill structure, is characterized in that: comprise and plant soil layer, argillic horizon, second layer bastard coal rock layers, layer of concrete, first floor bastard coal rock layers; Describedly plant soil layer, argillic horizon, second layer bastard coal rock layers, layer of concrete, first floor bastard coal rock layers be arranged in order from top to bottom;
Described second layer bastard coal rock layers distance well head 2.5-4m;
Described thickness of clay soil is 2-3m;
When the bastard coal rock layers of backfill presses 1.0m3 void side amount injection water 105kg, consolidation deposition velocity is the fastest, possesses certain intensity (0.1MPa) and intensity reaches maximum value simultaneously, this layer of gangue be backfilled to basement rock and the Quaternary Period intersection stop backfilling, water filling is saturated, precipitation consolidation 8-16h.
In order to stop, toxic and harmful leaks, Quaternary system is oozed under diving under water and gangue leaching is contaminated deep phreatic water, prevented well head generation secondary from subsiding, the bastard coal rock layers basis of the complete formation of above-mentioned gangue consolidation needs to build a layer thickness 2-4m, and intensity is the layer of concrete of C15.
After above-mentioned layer of concrete natural curing reaches 14d, carry out second layer gangue and water synchronously fills out envelope, technical essential when filling out envelope is with first floor gangue.When this layer of gangue fills out envelope to distance well head 2.5-4.0m, stop gangue filling out envelope, the saturated 8-16h of biding one's time of water filling makes bastard coal rock layers consolidation and has certain intensity.
On above-mentioned second layer gangue bonding course basis, backfill thickness is the argillic horizon of 2-3m, to play water moisture self restraint Revegetation of Eco-environment and to have resistance effect.The silty clay that the clay filling out envelope adopts index of plasticity to be greater than 10.
The utility model has the advantages that: be applicable to coal mining area gangue and abandoned mine simultaneously and the situation of depositing, turn waste into wealth, with gangue as the material mainly filling out envelope abandoned mine, concrete is as cramming encapsulant, clay is as Revegetation of Eco-environment dielectric material, while abandoned mine can obtain dealing carefully with, the relevant issues that gangue causes also effectively are solved.
Accompanying drawing explanation
Fig. 1 is the utility model generalized section.
In figure: 1-plants soil layer; 2-argillic horizon; 3-second layer bastard coal rock layers; 4-layer of concrete; 5-first floor bastard coal rock layers; 6-is containing gravel viscous soil horizon.
Detailed description of the invention
For further describing the utility model, be described in further detail below in conjunction with accompanying drawing and example.
One as shown in Figure 1 discards coal mine shaft backfill structure, comprises and plants soil layer 1, argillic horizon 2, second layer bastard coal rock layers 3, layer of concrete 4, first floor bastard coal rock layers 5; Describedly plant soil layer 1, argillic horizon 2, second layer bastard coal rock layers 3, layer of concrete 4, first floor bastard coal rock layers 5 be arranged in order from top to bottom;
Described second layer bastard coal rock layers 3 is apart from well head 2.5-4m;
Described argillic horizon 2 thickness is 2-3m;
Layer of concrete 4 thickness is 2-4m;
Laboratory test results shows, the gangue of backfill presses 1.0m
3when void side's amount injects water 105kg, consolidation deposition velocity is the fastest, possesses certain intensity (0.1MPa) and intensity reaches maximum value simultaneously, carries out improvements construct when therefore abandoned mine fills out envelope in this ratio.
The difficult point of gangue packing is the input ratio how controlling gangue and water.For the mine not having ponding, first calculate the demand of gangue before construction and determine its source place and moisture content, calculating total water injection rate thus.For the mine having ponding, the ponding total amount and the gangue that calculate mine fill out envelope amount, and defer to the ratio of gangue and water, calculate final water injection rate.
What adopt haulage truck and scrapers to carry out gangue fills out envelope, and the gangue useful load of the every power shovel of elevating conveyor is 1.2m
3, adopt water-tank lorry (capacity 15m
3, waterdrainage amount per minute is 0.3m
3) carry out water filling, when filling out envelope, stake gangue limit in limit is to water filling in well, and spoil water distribution quantity of often shoveling coal is 125kg (water-tank lorry discharge time is 25s).
First floor bastard coal rock layers 5 be backfilled to basement rock and the Quaternary Period intersection stop backfilling, water filling is saturated, precipitation consolidation 8-16h.
In order to stop, toxic and harmful leaks, Quaternary system is oozed under diving under water and gangue leaching is contaminated deep phreatic water, prevented well head generation secondary from subsiding, and the complete basis of first floor bastard coal rock layers 5 consolidation needs to build a layer thickness 2-4m, and intensity is the layer of concrete 4 of C15.Abandoned mine belongs to vertical structure, for ensureing that concrete does not fall excessive height because freely inclining and segregation phenomenon occurs, need build by string pipe and large funnel when concreting, simultaneously before concreting, first should fill out with 50-100mm the thick cement mortar identical with slurry composition in concrete in bottom, for ensureing that concrete can be transferred smoothly, concrete slump controls within the scope of 8-12cm.The one-shot forming of layer of concrete 4 continuous placing, adopts the method for natural curing after building, and carries out well head protection to ensure safety and to prevent foreign material and surface water from flowing in well, affects concrete strength.
Second layer gangue 3 and water synchronously fill out envelope.After above-mentioned layer of concrete natural curing reaches 14d, carry out second layer gangue 3 and water synchronously fills out envelope, technical essential when filling out envelope is with first floor bastard coal rock layers.When this layer of gangue fills out envelope to distance well head 2.5-4.0m, stop gangue filling out envelope, the saturated 8-16h of biding one's time of water filling makes bastard coal rock layers 3 consolidation and has certain intensity.
On second layer gangue bonding course 3 basis, backfill thickness is the argillic horizon 2 of 2-3m, to play water moisture self restraint Revegetation of Eco-environment and to have resistance effect.The silty clay that the clay filling out envelope adopts index of plasticity to be greater than 10.
Claims (4)
1. a discarded coal mine shaft backfill structure, is characterized in that: comprise and plant soil layer, argillic horizon, second layer bastard coal rock layers, layer of concrete, first floor bastard coal rock layers; Describedly plant soil layer, argillic horizon, second layer bastard coal rock layers, layer of concrete, first floor bastard coal rock layers be arranged in order from top to bottom.
2. discarded coal mine shaft backfill structure according to claim 1, is characterized in that: described second layer bastard coal rock layers distance well head 2.5-4m.
3. discarded coal mine shaft backfill structure according to claim 1, is characterized in that: described thickness of clay soil is 2-3m.
4. discarded coal mine shaft backfill structure according to claim 1, is characterized in that: layer of concrete 4 thickness is 2-4m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520443577.XU CN204783111U (en) | 2015-06-24 | 2015-06-24 | Structure is backfilled to abandonment colliery shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520443577.XU CN204783111U (en) | 2015-06-24 | 2015-06-24 | Structure is backfilled to abandonment colliery shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204783111U true CN204783111U (en) | 2015-11-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520443577.XU Expired - Fee Related CN204783111U (en) | 2015-06-24 | 2015-06-24 | Structure is backfilled to abandonment colliery shaft |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107676132A (en) * | 2017-09-15 | 2018-02-09 | 徐州工程学院 | Method for placing waste concrete and sealing carbon dioxide in old waste mine |
| CN107859532A (en) * | 2017-10-18 | 2018-03-30 | 煤炭工业太原设计研究院 | It is a kind of to run through closely the discarded shaft of vertical well processing method of coal seam stope up and down |
| CN108755765A (en) * | 2018-06-20 | 2018-11-06 | 中钢集团马鞍山矿山研究院有限公司 | The safe administering method of vertical shaft is discarded in a kind of mine |
-
2015
- 2015-06-24 CN CN201520443577.XU patent/CN204783111U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107676132A (en) * | 2017-09-15 | 2018-02-09 | 徐州工程学院 | Method for placing waste concrete and sealing carbon dioxide in old waste mine |
| CN107676132B (en) * | 2017-09-15 | 2019-03-19 | 徐州工程学院 | Method for placing waste concrete and sealing carbon dioxide in old waste mine |
| CN107859532A (en) * | 2017-10-18 | 2018-03-30 | 煤炭工业太原设计研究院 | It is a kind of to run through closely the discarded shaft of vertical well processing method of coal seam stope up and down |
| CN107859532B (en) * | 2017-10-18 | 2019-04-19 | 煤炭工业太原设计研究院 | A kind of discarded shaft of vertical well processing method of the coal seam stope above and below short distance |
| CN108755765A (en) * | 2018-06-20 | 2018-11-06 | 中钢集团马鞍山矿山研究院有限公司 | The safe administering method of vertical shaft is discarded in a kind of mine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151118 Termination date: 20210624 |