CN108412540A - A kind of expansion filling method based on waste filling - Google Patents
A kind of expansion filling method based on waste filling Download PDFInfo
- Publication number
- CN108412540A CN108412540A CN201810188861.5A CN201810188861A CN108412540A CN 108412540 A CN108412540 A CN 108412540A CN 201810188861 A CN201810188861 A CN 201810188861A CN 108412540 A CN108412540 A CN 108412540A
- Authority
- CN
- China
- Prior art keywords
- filling
- goaf
- expansion
- divider wall
- cloth
- 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
- 239000002699 waste material Substances 0.000 title claims abstract description 35
- 238000000034 method Methods 0.000 title claims abstract description 25
- 239000004744 fabric Substances 0.000 claims abstract description 45
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 27
- 230000008961 swelling Effects 0.000 claims abstract description 21
- 239000012530 fluid Substances 0.000 claims abstract description 15
- 239000003245 coal Substances 0.000 claims abstract description 8
- 238000005520 cutting process Methods 0.000 claims abstract description 4
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 239000011440 grout Substances 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 3
- 125000004122 cyclic group Chemical group 0.000 claims description 2
- 238000002347 injection Methods 0.000 claims description 2
- 239000007924 injection Substances 0.000 claims description 2
- 239000004575 stone Substances 0.000 claims description 2
- 238000002955 isolation Methods 0.000 claims 1
- 239000011435 rock Substances 0.000 abstract description 3
- 238000005065 mining Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 239000010878 waste rock Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F15/00—Methods or devices for placing filling-up materials in underground workings
- E21F15/005—Methods or devices for placing filling-up materials in underground workings characterised by the kind or composition of the backfilling material
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The expansion filling method based on waste filling that the invention discloses a kind of, this method include：After the completion of coal cutting, divider wall is set in goaf along working face direction, the upper end of divider wall is reserved with passway between the top in goaf, the upper end of divider wall and the top in goaf, forms filling space between divider wall and goaf；By passway, by waste filling to goaf；The upper end of divider wall is provided with charging mounting hole, cloth tube group is installed at charging mounting hole, cloth tube group is intervally arranged by several No.1 cloth tubes and several No. two cloth tubes；Switched to filling space by both feeding engine one and feeding engine two and swelling agent fluid is provided.The present invention utilizes the expansion characteristics of swelling agent on the basis of waste filling, is full of goaf within a short period of time, and then in the case where expansion is limited, certain stress is generated to periphery rock, realizes the compacting to the gamut of waste filling body.
Description
Technical field
The present invention relates to mineral industry filling technique fields, and in particular to a kind of placement method.
Background technology
Currently, the key element of coal industry evaluation filling effect mainly has pack completeness, strength of filling mass and obturation steady
Qualitative equal three aspects.In the filling mining method of use, waste filling technology is more mature, is most widely used.Pass through
Waste filling can effectively utilize discarded gangue, solve the environmental ecology caused due to the accumulation of gangue pollute with
And the problems such as gangue spontaneous combustion, while the problems such as surface subsidence caused by coal mining can be effectively solved, it is mined out
Area ground provides effective base support.
When carrying out filling mining by the way of waste filling material and its machinery conveying, first, due in vertical direction
On can not achieve whole fillings (connecing top completely), therefore, although can be carried out to the ground settlement that is brought after seam mining effective
Control, but be difficult to control within the minimum degree of permission；Second is that since common placement method needs compacting, consolidates and realizes
The density of filler so that compacting is low with the intensity of tamping, range is small, causes the density of obturation that technology is not achieved and wants
It asks.
Invention content
It is an object of the invention to the deficiencies for existing waste filling, provide a kind of expansion filling based on waste filling
Method utilizes the expansion characteristics of swelling agent on the basis of waste filling, is full of goaf within a short period of time, is then expanding
In the case of limited, certain stress is generated to periphery rock, realizes the compacting to the gamut of waste filling body.It can be solved
Waste filling connects top problem and the filling compacting problem that intensity is low, range is small.
Its technical solution includes：
A kind of expansion filling method based on waste filling, which is characterized in that the method includes the following steps successively：
After the completion of a coal cuttings, divider wall is set in goaf along working face direction, the upper end of the divider wall is close to mined out
The top in area, is reserved with passway between the upper end of the divider wall and the top in goaf, the divider wall and goaf it
Between form filling space；
B is by the passway, and by waste filling to goaf, the packed height and divider wall height of the spoil are flat
Together；
C is provided with charging mounting hole in the upper end of the divider wall, and cloth tube group, institute are installed at the charging mounting hole
Stating cloth tube group is intervally arranged by several No.1 cloth tubes and several No. two cloth tubes, and all No.1 cloth tubes are total
With a feeding engine one, all No. two cloth tubes share a feeding engine two；
D start feeding engine one, by all No.1 cloth tubes will in swelling agent fluid conveying to filling space, fill 40~
After 50min, feeding engine one is closed, opens feeding engine two, by all No. two cloth tubes by swelling agent fluid conveying to filling sky
In；The swelling agent fluid of such cyclic switching, injection flows into inside waste filling body, and generating body product expansion so that expansion
The obturation rapid spatial expansion that agent is mixed with spoil realizes that goaf filling connects top, while oppressing waste filling body, realizes cash
The compacting and tamping of stone, and when spoil is compacted to a certain extent, start compression-expansion agent internal particle gap, improve obturation
Laser intensity and stability；
After swelling agent to be filled e reaction completely, the obturation for fully connecing top is formed in goaf, remove described in every
From wall, this round expansion filling is completed；
F repeats step a-e according to this, carries out the expansion filling of next one.
As a preferred solution of the present invention, in step a, the height of the divider wall is equivalent to the 4/ of goaf height
5, the passway diameter is equal to the 1/5 of goaf height.
As another preferred embodiment of the present invention, the divider wall is formed by polylith template splicing, and the outside of template is logical
Holder is crossed to be fixed.
Preferably, the No.1 cloth tube, No. two cloth tubes grout outlet be directed at the filling space above obturation.
Advantageous effects caused by the present invention：
Compared with prior art, the present invention is injected in turn to filling space by No.1 cloth tube and No. two cloth tubes and is expanded
Agent fluid, the switching time filled in turn should control in 40~50min, in order to avoid lead to cloth because swelling agent fluid sets expand
Blockage.
Swelling agent and waste filling are effectively combined together by the present invention, efficiently solve the problems, such as Tight filling, are improved
Pack completeness, while improving the strength and stability of obturation.Before reducing the influence to surface buildings, railway and water body
It puts, solution releases more " under three " overstocked coal resources, improves resource recovery, reaches the purpose of sustainable development, right
Three unders in coal mining has far-reaching significance.
Description of the drawings
The present invention will be further described below in conjunction with the accompanying drawings：
Fig. 1 is the process schematic (setting divider wall) of placement method of the present invention；
Fig. 2 is the process schematic (filling waste rock in filling space) of placement method of the present invention；
Fig. 3 is the process schematic (filling expansion obturation) of placement method of the present invention；
Fig. 4 is the design sketch after placement method of the present invention filling；
Fig. 5 is the arrangement schematic diagram of No.1 cloth tube of the present invention, No. two cloth tubes；
In figure, 1, divider wall, 2, passway, 3, No.1 cloth tube, 4, No. two cloth tubes, 5, waste filling body, 6, mixing
Obturation.
Specific implementation mode
The present invention proposes a kind of expansion filling method based on waste filling, in order to make advantages of the present invention, technical side
Case is clearer, clear, elaborates to the present invention with reference to specific embodiment.
In conjunction with shown in Fig. 1 to Fig. 5, a kind of expansion filling method based on waste filling of the present invention specifically includes following step
Suddenly：
After the completion of coal cutting, divider wall 1 is arranged in goaf along working face direction, the upper end of divider wall 1 is close in the first step
The top in goaf is highly equivalent to the 4/5 of goaf height, reserves the passway 2 of filling waste rock and expanding material, channel
2 diameters of mouth are equal to the 1/5 of goaf height, and goaf is separated into a closed filling space by divider wall 1.The divider wall
1 is formed by polylith template splicing, and the outside of template is fixed by holder.
Second step, by waste filling to goaf, is fills up to high with divider wall 1 by the passway 2 on 1 top of divider wall
Degree is concordant, is tamped and is consolidated without the spoil to filling.
Third walks, and arranges cloth tube by the expects pipe mounting hole of 1 top of divider wall, the cloth tube includes multiple No.1 cloth
Expects pipe 3 and multiple No. two cloth tubes 4, the radial arrangement in interval successively between each No.1 cloth tube 3 and each No. two cloth tubes 4.It is all
No.1 cloth tube 3 and all No. two cloth tubes 4 carry out fluid expansion filling in turn, and the switching time filled in turn should control 40
~50min, in order to avoid lead to cloth blockage because swelling agent fluid sets expand.The grout outlet alignment spoil of all cloth tubes fills
Filling space above body is filled out, all No.1 cloth tubes 3 are connected with a feeding engine, and all No. two cloth tubes 4 another are sent with one
Material pump is connected.
4th step starts feeding engine, by cloth tube by swelling agent fluid conveying to filling space, in space to be filled
When the fluid-filled complete remaining goaf space of swelling agent, since various environment and human factor influence, obturation connects top effect simultaneously
It is undesirable, stop the filling of swelling agent fluid at this time, and all expects pipe mounting holes of 1 top of divider wall and passway are blocked.
Subsequently, as waste filling body, without compacting, swelling agent fluid flows into inside waste filling body 5, and generating body product expansion so that
The obturation rapid spatial expansion that swelling agent is mixed with spoil realizes that goaf filling connects top, while continuing to oppress waste filling
Body realizes the compacting and tamping of spoil, and when spoil is compacted to a certain extent, beginning compression-expansion agent internal particle gap,
Improve obturation laser intensity and stability.After swelling agent to be filled reaction completely, goaf be formed fully connect top,
Obturation laser intensity and all higher mixed filling body 6 of stability remove divider wall, complete this round expansion filling.
5th step repeats the first step, second step, third step, the 4th step, carries out next one expansion filling.
The present invention utilizes the expansion characteristics of swelling agent on the basis of waste filling, is full of goaf within a short period of time,
Then in the case where expansion is limited, certain stress is generated to periphery rock, realizes the pressure to the gamut of waste filling body
It is real.
The part that do not addressed in the present invention uses or uses for reference prior art and can be realized.
Although more herein used the terms such as passway, No.1 cloth tube, it is not precluded using other
The possibility of term, the simple replacement that those skilled in the art under the inspiration of the present invention do these terms should all be at this
Within the protection domain of invention.
Claims (4)
1. a kind of expansion filling method based on waste filling, which is characterized in that the method includes the following steps successively：
After the completion of a coal cuttings, divider wall is set in goaf along working face direction, the upper end of the divider wall is close to goaf
Top is reserved with passway, shape between the divider wall and goaf between the upper end of the divider wall and the top in goaf
At filling space；
B is concordant with divider wall height by the packed height of waste filling to goaf, the spoil by the passway；
C is provided with charging mounting hole in the upper end of the divider wall, and cloth tube group, the cloth are installed at the charging mounting hole
Expects pipe group is intervally arranged by several No.1 cloth tubes and several No. two cloth tubes, and all No.1 cloth tubes share one
A feeding engine one, all No. two cloth tubes share a feeding engine two；
D start feeding engine one, by all No.1 cloth tubes will in swelling agent fluid conveying to filling space, fill 40~
After 50min, feeding engine one is closed, opens feeding engine two, by all No. two cloth tubes by swelling agent fluid conveying to filling sky
In；The swelling agent fluid of such cyclic switching, injection flows into inside waste filling body, and generating body product expansion so that expansion
The obturation rapid spatial expansion that agent is mixed with spoil realizes that goaf filling connects top, while oppressing waste filling body, realizes cash
The compacting and tamping of stone, and when spoil is compacted to a certain extent, start compression-expansion agent internal particle gap, improve obturation
Laser intensity and stability；
After swelling agent to be filled e reaction completely, it is formed the obturation for fully connecing top in goaf, removes the isolation
Wall completes this round expansion filling；
F repeats step a-e according to this, carries out the expansion filling of next one.
2. a kind of expansion filling method based on waste filling according to claim 1, it is characterised in that：In step a, institute
The height for stating divider wall is equivalent to the 4/5 of goaf height, and the passway diameter is equal to the 1/5 of goaf height.
3. a kind of expansion filling method based on waste filling according to claim 1, it is characterised in that：The divider wall
It is formed by polylith template splicing, the outside of template is fixed by holder.
4. a kind of expansion filling method based on waste filling according to claim 1, it is characterised in that：The No.1 cloth
Expects pipe, No. two cloth tubes grout outlet be directed at the filling space above obturation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810188861.5A CN108412540A (en) | 2018-03-08 | 2018-03-08 | A kind of expansion filling method based on waste filling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810188861.5A CN108412540A (en) | 2018-03-08 | 2018-03-08 | A kind of expansion filling method based on waste filling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108412540A true CN108412540A (en) | 2018-08-17 |
Family
ID=63130241
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810188861.5A Pending CN108412540A (en) | 2018-03-08 | 2018-03-08 | A kind of expansion filling method based on waste filling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108412540A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109441530A (en) * | 2018-12-13 | 2019-03-08 | 山东科技大学 | A kind of filing gangue in mined-out area squirts tamping unit and waste filling method |
| CN110454217A (en) * | 2019-08-12 | 2019-11-15 | 内蒙古伊泰煤炭股份有限公司 | A kind of coal working face filling method for protecting support |
| CN112253228A (en) * | 2020-10-28 | 2021-01-22 | 中国矿业大学 | Method for fully filling waste rock in goaf of underground mine by roof contact |
| CN112433205A (en) * | 2020-11-12 | 2021-03-02 | 北京科技大学 | Mining and filling empty roof height detection device, installation method and detection method thereof |
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| WO2011103620A1 (en) * | 2010-02-26 | 2011-09-01 | Subsidence Control International Pty Ltd | A method of reducing subsidence or windblast impacts from longwall mining |
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| CN105523747A (en) * | 2016-01-27 | 2016-04-27 | 济南大学 | Mine filling cementing material and preparation method thereof |
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| CN105756703B (en) * | 2016-04-25 | 2017-10-31 | 太原理工大学 | A kind of placement method in room formula goaf |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109441530A (en) * | 2018-12-13 | 2019-03-08 | 山东科技大学 | A kind of filing gangue in mined-out area squirts tamping unit and waste filling method |
| CN109441530B (en) * | 2018-12-13 | 2023-11-03 | 山东科技大学 | Goaf filling gangue wet spraying tamping device and gangue filling method |
| CN110454217A (en) * | 2019-08-12 | 2019-11-15 | 内蒙古伊泰煤炭股份有限公司 | A kind of coal working face filling method for protecting support |
| CN112253228A (en) * | 2020-10-28 | 2021-01-22 | 中国矿业大学 | Method for fully filling waste rock in goaf of underground mine by roof contact |
| CN112253228B (en) * | 2020-10-28 | 2021-12-28 | 中国矿业大学 | Method for fully filling waste rock in goaf of underground mine by roof contact |
| CN112433205A (en) * | 2020-11-12 | 2021-03-02 | 北京科技大学 | Mining and filling empty roof height detection device, installation method and detection method thereof |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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Application publication date: 20180817 |