CN208918592U - A kind of open coal mine underground reservoir comprising core-wall enrockment checkdam structure - Google Patents
A kind of open coal mine underground reservoir comprising core-wall enrockment checkdam structure Download PDFInfo
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- CN208918592U CN208918592U CN201821385639.6U CN201821385639U CN208918592U CN 208918592 U CN208918592 U CN 208918592U CN 201821385639 U CN201821385639 U CN 201821385639U CN 208918592 U CN208918592 U CN 208918592U
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- enrockment
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- 239000003245 coal Substances 0.000 title claims abstract description 59
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 35
- 239000003673 groundwater Substances 0.000 claims abstract description 31
- 230000004888 barrier function Effects 0.000 claims abstract description 11
- 239000002910 solid waste Substances 0.000 claims abstract description 7
- 239000000463 material Substances 0.000 claims description 5
- 239000002344 surface layer Substances 0.000 claims description 5
- 239000004575 stone Substances 0.000 claims description 4
- 238000010276 construction Methods 0.000 abstract description 21
- 230000000694 effects Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- 238000005266 casting Methods 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 241000209202 Bromus secalinus Species 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
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Abstract
The utility model provides a kind of open coal mine underground reservoir comprising core-wall enrockment checkdam structure, open coal mine pit including being used as water space, core-wall checkdam in open coal mine pit is set, the enrockment that core-wall checkdam front and rear sides are used as water storage tank is set, and it is filled in the In-pit dumping being discharged by In-pit dumping operation on enrockment, the core-wall checkdam includes multiple core-wall checkdams made of successively constructing according to In-pit dumping operating direction, the multiple core-wall checkdam divides open coal mine pit into multiple groundwater storage spaces, each core-wall checkdam follows the In-pit dumping operation point multistage stage to construct, water transfer pipe network is equipped between the multiple groundwater storage space, guarantee the water transfer and water intaking between different libraries, impervious barrier made of the enrockment bottom setting is laid with as solid waste.The operation of open coal mine In-pit dumping and groundwater reservoir construction are effectively combined together, realize the safe and efficient construction of open coal mine underground reservoir by the open coal mine underground reservoir provided by the utility model comprising core-wall enrockment checkdam structure.
Description
Technical field
The utility model belongs to mineral engineering and hydraulic engineering interleaving techniques field, in particular to a kind of includes core-wall enrockment
The open coal mine underground reservoir of checkdam structure.
Background technique
East grassland large coal base ecology fragility, Opencut coal mine mining easily cause desertification, while over the ground
Operating system is lauched to pollute and destroy.Therefore, open coal mine underground reservoir construction is raw to east grassland large coal base
State reparation has important fwaater resources protection effect.
Opencut coal mine mining produces coal body after need to removing earth's surface rock-soil layer, then to goaf earth's surface rock-soil layer overburden
It is backfilled, which is known as internal dumping, and internal dumping is the main selection of land location of open coal mine underground reservoir construction.For dew
How its coal mine underground Design of Reservoirs realizes the Fast Construction of groundwater reservoir in Waste Dump inside Open Pit Mine, how to solve ground
How lower storage reservoir construction and In-pit dumping shop problem coordinate In-pit dumping operation and duration relationship that checkdam is constructed, and how
Live storage and utilization, these problems all have become open coal mine underground reservoir construction and urgently consider and compel problem to be solved.
Utility model content
It can coordinate In-pit dumping operation the technical problem to be solved by the utility model is to provide one kind to construct with checkdam
Duration relationship, layout designs rationally and be capable of the open coal mine comprising core-wall enrockment checkdam structure of safe and efficient construction
Groundwater reservoir.
In order to solve the above technical problems, the utility model provides a kind of outdoor coal comprising core-wall enrockment checkdam structure
Mine groundwater reservoir, the open coal mine pit including being used as water space, is arranged in the core-wall checkdam in open coal mine pit, if
It sets and is used as the enrockment of water storage tank in core-wall checkdam front and rear sides, and be filled in being discharged by In-pit dumping operation on enrockment
Casting, the core-wall checkdam includes multiple core-wall checkdams made of successively constructing according to In-pit dumping operating direction, described more
A core-wall checkdam divides open coal mine pit into multiple groundwater storage spaces, and each core-wall checkdam follows In-pit dumping operation
Point multistage stage constructs, and water transfer pipe network is equipped between the multiple groundwater storage space, guarantee water transfer between different libraries with
Water intaking, impervious barrier made of the enrockment bottom setting is laid with as solid waste.
Further, the core-wall checkdam is rolled by concreting or native stone.
Further, the dam foundation depth of the first order core-wall checkdam of the core-wall checkdam is 10-15m, every grade of core-wall
The slope angle of checkdam is 87 °, and the width at dam crest of afterbody core-wall checkdam is 10-15m, the overall height H of core-wall checkdamnWith
The relationship that open coal mine cheats depth H is H=HnThe relationship of+10m, the hole the maximum width W and open coal mine depth H of core-wall checkdam are W
=20m+ (H-10m)/tan87 °.
Further, the In-pit dumping packed height on the enrockment and the core-wall checkdam height maintain an equal level.
Further, the enrockment is by rubble or the material with spatial hole and/or cavity configuration is kept off along the core-wall
Dam inclination is accumulated.
Further, the stacking gradient of the enrockment is 25 ° -33 °.
Further, the thickness Hs of the impervious barrier is 1-1.5m.
Further, the water transfer pipe network includes the ground lower water-supply-pipe being embedded in the water storage tank, and including setting
The earth's surface water-supply-pipe that casting surface layer is connected to described ground lower water-supply-pipe by vertical pipeline.
A kind of open coal mine underground reservoir comprising core-wall enrockment checkdam structure provided by the utility model, by outdoor coal
The operation of mine In-pit dumping is effectively combined together with groundwater reservoir construction, considers the underground of design core-wall enrockment checkdam structural shape
Reservoir is built, and under the premise of guaranteeing does not influence In-pit dumping operation, multistage, multiplexing phase build core-wall enrockment checkdam, is realized
The safe and efficient construction of open coal mine underground reservoir.Also, it is set using the groundwater reservoir of core-wall enrockment checkdam structural shape
Meter, dam structure are composed of core-wall and enrockment, and for typical strong and weak composite unit structure, granular media enrockment can not only play storage
Water effect also has the effect of energy-absorbing slicing, therefore using the groundwater reservoir of core-wall enrockment checkdam structure, has sufficiently stable
Structural seismic performance.Meanwhile groundwater reservoir bottom storehouse is laid with using the solid waste such as mine spoil, the building or plastics system of grinding and is used as
Impervious barrier meets the engine request of bottom storehouse antiseepage, realizes the green construction theory to turn waste into wealth.
Detailed description of the invention
Fig. 1 is the open coal mine underground reservoir provided by the embodiment of the utility model comprising core-wall enrockment checkdam structure
Whole design cross-sectional view；
Fig. 2 is the open coal mine underground reservoir provided by the embodiment of the utility model comprising core-wall enrockment checkdam structure
Partial sectional view；
Fig. 3 is the open coal mine underground reservoir provided by the embodiment of the utility model comprising core-wall enrockment checkdam structure
Plane figure；
Fig. 4 is the open coal mine underground reservoir provided by the embodiment of the utility model comprising core-wall enrockment checkdam structure
The core-wall checkdam first order stage constructs design drawing.
Specific embodiment
Referring to Fig. 1, Fig. 2 and Fig. 3, a kind of dew comprising core-wall enrockment checkdam structure provided by the embodiment of the utility model
Its coal mine underground reservoir, the open coal mine pit 10 including being used as water space, is arranged in the core-wall in open coal mine pit 10
Checkdam 20, be arranged in 20 front and rear sides of core-wall checkdam be used as water storage tank enrockment 30, and be filled on enrockment 30 by
The In-pit dumping 40 of In-pit dumping operation discharge, and the height of the packed height of the In-pit dumping 40 on enrockment 30 and core-wall checkdam 20
Maintain an equal level.Wherein, core-wall checkdam 20 is rolled by concreting or native stone, and core-wall checkdam 20 includes making along In-pit dumping
Industry direction multiple core-wall checkdams made of successively constructing, in this way, multiple core-wall checkdams divide open coal mine pit 10 into
Multiple groundwater storage spaces form multiple groundwater reservoirs such as 1#, 2#, 3#, 4#.Also, each core-wall checkdam 10 is with interior
The casting operation point multistage stage constructs, i.e., each core-wall checkdam 10 waits the multistage stage to construct by 1,2,3,4 ....
Referring to fig. 4, the dam foundation depth of the first order core-wall checkdam of each core-wall checkdam 20 is 10-15m, can be made in this way
Core-wall checkdam 20 is firm to be stood in groundwater reservoir；The slope angle of every grade of core-wall checkdam is 87 °, i.e. 20 base of core-wall checkdam
This is close to stalk formula, and the core-wall checkdam of this structure, stability is good, is convenient for construction, construction is simple；Afterbody core-wall water blocking
The width at dam crest on dam is 10-15m, the overall height H of core-wall checkdam 20nBy the relation formula H=H for cheating depth H with open coal minen+
10m determines that the maximum width W of core-wall checkdam 20 namely the width W of first order core-wall checkdam are deep by cheating with open coal mine
The relation formula W=20m+ (H-10m) of H/tan87 ° is determined.
Wherein, enrockment 30 be by with hole or crack rubble or other with spatial hole, have and cavity configuration or have
The material of spatial hole and cavity configuration is piled up along the inclination of core-wall checkdam 20, piles up construction, heap in order to facilitate enrockment 30
The stacking gradient of stone 30, which is set as 25 ° -33 °, to be advisable.These rockfill materials are low in cost, and have absorption and filtering function, no
It can only guarantee the effective purification and storage of body of groundwater, and these granular media enrockments and core-wall enrockment checkdam are combined into typical case
Strong and weak composite unit structure, energy-absorbing slicing can be played the role of, make groundwater reservoir have sufficiently stable structural seismic performance.Storage
Water body material, which is paid the utmost attention to tilt along the core-wall checkdam, to be accumulated.
In order to guarantee the water transfer and water intaking between different groundwater reservoirs, 1#, 2# that multiple groundwater storage spaces are formed,
Water transfer pipe network is equipped between multiple groundwater reservoirs such as 3#, 4#.Wherein, water transfer pipe network includes the enrockment 30 being embedded in as water storage tank
In ground lower water-supply-pipe 61, and be arranged in 40 surface layer of In-pit dumping with described ground lower water-supply-pipe 61 pass through vertical pipeline 63 be connected to
Earth's surface water-supply-pipe 62, the underground water delivery with 20 side-by-side parallel of core-wall checkdam is provided under the enrockment 30 of each groundwater reservoir
Pipe 61, all ground lower water-supply-pipe 61 are connected to by many vertical pipelines 63 with many earth's surface water-supply-pipes 62, and water-supply-pipe is formed
Net, and for the convenience of water transfer and water intaking, 40 surface layer of In-pit dumping of each groundwater reservoir is every nearby along core-wall checkdam 20
Being spaced a distance construction has multiple water intaking stations 70 being connected to earth's surface water-supply-pipe 62.
In addition, being arranged to make groundwater reservoir that there is better water-holding capacity in 30 bottom of enrockment of each groundwater reservoir
Have an impervious barrier 50, impervious barrier 50 be using the solid waste such as coal mine waste spoil, building castoff or plastic refuse into
Row is laid with, and is laid with clay on solid waste surface layer and roll, in order to reach optimal impermeable effect and not
Construction cost is caused to improve as the construction period is extended, it is best that the thickness Hs of impervious barrier 50, which is set as 1-1.5m,.Utilize mine
The solid waste such as spoil, the building or plastics system of grinding is laid with groundwater reservoir bottom storehouse, not only meets the engine request of bottom storehouse antiseepage,
It can also realize the green construction theory to turn waste into wealth, this is of great significance to ecological restoration of mine and fwaater resources protection.
When carrying out the construction of the open coal mine underground reservoir comprising core-wall enrockment checkdam structure, open coal mine is selected to adopt
The pit of dead zone as groundwater storage space 10, open coal mine goaf internal dumping close to open-pit slope it is certain away from
From the first order stage checkdam for constructing first core-wall checkdam 20, and in the front and rear sides of core-wall checkdam 20 along core-wall
Checkdam 20 piles up enrockment 30.When piling up for enrockment 30 is highly held with the first order stage checkdam of first core-wall checkdam 20
Usually, the In-pit dumping 40 that internal dumping is discharged is filled on the enrockment 30 of that side of internal dumping up to In-pit dumping 40
Height and the first order stage checkdam of core-wall checkdam 20 maintain an equal level.When the height and the first of core-wall checkdam 20 of In-pit dumping 40
After grade stage checkdam maintains an equal level, continue to construct second stage checkdam, heap on first order stage checkdam according to the method described above
Enrockment 30 and filling In-pit dumping 40 are built, until the total height of core-wall checkdam 20 reaches Hn.Certainly before the accumulation of enrockment 30,
It first is laid with impervious barrier 50 in bottom storehouse, and is laid under the enrockment 30 on impervious barrier defeated with the underground of 20 side-by-side parallel of core-wall checkdam
Water pipe 61, while the vertical pipeline 63 being connected to ground lower water-supply-pipe 61 is buried in enrockment 30.When first core-wall checkdam 20
Completion is constructed, and the In-pit dumping 40 being filled on the enrockment 30 of that side of internal dumping is held with first core-wall checkdam 20
After flat, the constructing of second core-wall checkdam 20 is carried out according still further to the above method, piles up enrockment 30 and filling In-pit dumping 40,
The rest may be inferred in this way, the multistage of core-wall checkdam 20 is constructed, the accumulation operation of enrockment 20 and the filling of In-pit dumping 40 it is successive
It is respectively completed, is completed until entire groundwater reservoir is built, thus, the operation of open coal mine In-pit dumping and groundwater reservoir are built effective
It is combined together, under the premise of ensure that does not influence In-pit dumping operation, the construction core-wall enrockment water blocking of multistage and multiplexing phase
Dam realizes the safe and efficient construction of open coal mine underground reservoir.It is laid on the In-pit dumping 40 finally filled and led up herein by vertical
The earth's surface water-supply-pipe 62 that pipeline 63 is connected to ground lower water-supply-pipe 61.Build the open coal mine comprising core-wall enrockment checkdam completed
The effect picture of groundwater reservoir is as shown in figures 1 and 3.
It should be noted last that the above specific embodiment is only to illustrate the technical solution of the utility model rather than limits
System, although the utility model is described in detail referring to example, those skilled in the art should understand that, it can be right
The technical solution of the utility model is modified or replaced equivalently, without departing from the spirit and model of technical solutions of the utility model
It encloses, should all cover in the scope of the claims of the utility model.
Claims (8)
1. a kind of open coal mine underground reservoir comprising core-wall enrockment checkdam structure, it is characterised in that: empty including being used as water storage
Between open coal mine pit, the core-wall checkdam in open coal mine pit is set, and setting is used in core-wall checkdam front and rear sides
Make the enrockment of water storage tank, and the In-pit dumping being discharged by In-pit dumping operation being filled on enrockment, the core-wall checkdam includes
Multiple core-wall checkdams made of successively constructing according to In-pit dumping operating direction, the multiple core-wall checkdam is by open coal mine mine
Hole divides multiple groundwater storage spaces into, and each core-wall checkdam follows the In-pit dumping operation point multistage stage to construct, described
Be equipped with water transfer pipe network between multiple groundwater storage spaces, guarantee the water transfer and water intaking between different libraries, the enrockment bottom setting by
Impervious barrier made of solid waste is laid with.
2. open coal mine underground reservoir according to claim 1, it is characterised in that: the core-wall checkdam is poured by concrete
It builds or native stone rolls.
3. open coal mine underground reservoir according to claim 2, it is characterised in that: the first order heart of the core-wall checkdam
The dam foundation depth of wall checkdam is 10-15m, and the slope angle of every grade of core-wall checkdam is 87 °, the dam crest of afterbody core-wall checkdam
Width is 10-15m, the overall height H of core-wall checkdamnRelationship with open coal mine hole depth H is H=Hn+ 10m, core-wall checkdam
The relationship of maximum width W and open coal mine hole depth H are W=20m+ (H-10m)/tan87 °.
4. open coal mine underground reservoir according to claim 1, it is characterised in that: the In-pit dumping on the enrockment is filled high
Degree maintains an equal level with the core-wall checkdam height.
5. open coal mine underground reservoir according to claim 1, it is characterised in that: the enrockment is that by rubble or have
The material of spatial hole and/or cavity configuration is accumulated along core-wall checkdam inclination.
6. open coal mine underground reservoir according to claim 5, it is characterised in that: the stacking gradient of the enrockment be 25 °-
33°。
7. open coal mine underground reservoir according to claim 1, it is characterised in that: the thickness Hs of the impervious barrier is 1-
1.5m。
8. open coal mine underground reservoir according to claim 1, it is characterised in that: the water transfer pipe network includes being embedded in institute
The ground lower water-supply-pipe in water storage tank is stated, and is arranged in what In-pit dumping surface layer was connected to described ground lower water-supply-pipe by vertical pipeline
Earth's surface water-supply-pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821385639.6U CN208918592U (en) | 2018-08-27 | 2018-08-27 | A kind of open coal mine underground reservoir comprising core-wall enrockment checkdam structure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201821385639.6U CN208918592U (en) | 2018-08-27 | 2018-08-27 | A kind of open coal mine underground reservoir comprising core-wall enrockment checkdam structure |
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| CN208918592U true CN208918592U (en) | 2019-05-31 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109026152A (en) * | 2018-08-27 | 2018-12-18 | 清华大学 | A kind of open coal mine underground reservoir comprising core-wall enrockment checkdam structure |
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2018
- 2018-08-27 CN CN201821385639.6U patent/CN208918592U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109026152A (en) * | 2018-08-27 | 2018-12-18 | 清华大学 | A kind of open coal mine underground reservoir comprising core-wall enrockment checkdam structure |
| CN109026152B (en) * | 2018-08-27 | 2024-04-19 | 清华大学 | Open pit coal mine underground reservoir containing core wall rock-fill retaining dam structure |
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