CN106761748A - A kind of deep mining coal seam Hidden Karst Under karst collapse col umn method for blocking - Google Patents
A kind of deep mining coal seam Hidden Karst Under karst collapse col umn method for blocking Download PDFInfo
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- CN106761748A CN106761748A CN201611101350.2A CN201611101350A CN106761748A CN 106761748 A CN106761748 A CN 106761748A CN 201611101350 A CN201611101350 A CN 201611101350A CN 106761748 A CN106761748 A CN 106761748A
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- cement
- filling
- water
- aggregate
- water body
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- 230000000903 blocking effect Effects 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title claims abstract description 25
- 239000003245 coal Substances 0.000 title claims abstract description 23
- 238000005065 mining Methods 0.000 title claims abstract description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 94
- 239000004568 cement Substances 0.000 claims abstract description 52
- 238000007569 slipcasting Methods 0.000 claims abstract description 26
- 238000007613 slurry method Methods 0.000 claims abstract description 9
- 238000005553 drilling Methods 0.000 claims abstract description 7
- 239000010881 fly ash Substances 0.000 claims abstract description 7
- 238000007596 consolidation process Methods 0.000 claims abstract description 5
- 239000000945 filler Substances 0.000 claims abstract description 4
- 239000011435 rock Substances 0.000 claims abstract description 4
- 239000002956 ash Substances 0.000 claims description 11
- 239000002002 slurry Substances 0.000 claims description 8
- 239000000446 fuel Substances 0.000 claims description 7
- 239000011440 grout Substances 0.000 claims description 5
- 238000002347 injection Methods 0.000 claims description 5
- 239000007924 injection Substances 0.000 claims description 5
- 230000008595 infiltration Effects 0.000 claims description 3
- 238000001764 infiltration Methods 0.000 claims description 3
- 230000010412 perfusion Effects 0.000 claims description 2
- 235000019738 Limestone Nutrition 0.000 abstract description 6
- 239000006028 limestone Substances 0.000 abstract description 6
- 235000002918 Fraxinus excelsior Nutrition 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 230000009172 bursting Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C41/00—Methods of underground or surface mining; Layouts therefor
- E21C41/16—Methods of underground mining; Layouts therefor
- E21C41/18—Methods of underground mining; Layouts therefor for brown or hard coal
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Remote Sensing (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)
Abstract
The invention discloses a kind of deep mining coal seam Hidden Karst Under karst collapse col umn method for blocking, grouting treatment, described grouting treatment is to use the filling and injecting slurry method slip casting of three stages by drilling, and the filler block of complete relative water proof is formed in floor water-bearing rock；The filling and injecting slurry method slip casting of three stages comprises the following steps：First stage：Aggregate fills and to form aggregate and block water body；Second stage：Cement/flyash filling consolidation grouting forms mixing and blocks water body；Phase III：Cement placement slip casting forms cement and blocks water body；Using the technical scheme of three stages filling and injecting slurry method of the invention, quick blocking is carried out to karst collapse col umn, exploitation working face remnants water yields is less than 5m3/ h, it is ensured that water gushing channelway and initial fissure to detecting carry out high-pressure slip-casting, effectively " block water plug " is formed in target zone, reaches obstruct target zone and following aquifer in Ordovician limestone gushing water, and complete water conservation safe working.
Description
Technical field
The invention belongs to coal mining field, it is more particularly related to a kind of deep mining coal seam Hidden Karst Under is subside
Post method for blocking.
Background technology
During the deep mining coal seam of coal mining, large-scale vertical permeable structure, i.e., so-called karst collapse col umn, in hydraulic pressure high are lain concealed
And under digging disturbing influence, easily induce large-scale water bursting disaster；Shear-zone vertical passage, with deep increasing is adopted, newborn base plate splits
Gap is developed, and causes fault activation, and base plate effective water-resisting layer thickness diminishes, and under the influence of hydraulic pressure high and digging, easily produces base plate
Gushing water, at the same shear-zone link up too, aquifer in Ordovician limestone, ash dynamic supply difficult to understand participates in gushing water, and water hazard prediction danger increases, existing
Technology is prevented and treated up to slip casting at base plate by drilling, and slip casting injects cement grout using normal pressure, and this method cement is not only
Blocked it is difficult to reach and also easily caused at base plate drilling, meanwhile, water gushing channelway is run into during slip casting and initial fissure is also possible to
There is the phenomenon that cement grout is lost in, it is difficult to ensure to intercept target zone and following aquifer in Ordovician limestone gushing water, and complete water conservation safety
Exploitation, the use of a large amount of cement grouts increases production cost.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of water gushing channelway and initial fissure ensured to detecting and enter
Horizontal high voltage slip casting, effectively " block water plug " is formed in target zone, reaches obstruct target zone and following aquifer in Ordovician limestone gushing water, and complete
The deep mining coal seam Hidden Karst Under karst collapse col umn method for blocking of water conservation safe working.
To achieve these goals, the technical scheme taken of the present invention is：A kind of deep mining coal seam Hidden Karst Under for being provided
Karst collapse col umn method for blocking, including grouting treatment, described grouting treatment are to use the filling and injecting slurry method slip casting of three stages by drilling,
The filler block of complete relative water proof is formed in floor water-bearing rock.
A kind of deep mining coal seam Hidden Karst Under karst collapse col umn method for blocking disclosed by the invention, three stage filling and injecting slurry method slip casting bags
Include following steps：
First stage：Water aggregate fills and to form aggregate and block water body；Second stage：Cement/flyash filling consolidation grouting shape
Blocked water body into mixing；Phase III：Cement placement slip casting forms cement and blocks water body.
A kind of deep mining coal seam Hidden Karst Under karst collapse col umn method for blocking disclosed by the invention, cement placement slip casting is by drilling
Injection cement grout, grouting pressure is approximately equal to water pressure, cement block water body positioned at the bottom of three ashes away from bottom it is vertical away from
From being 80~90m.
A kind of deep mining coal seam Hidden Karst Under karst collapse col umn method for blocking disclosed by the invention, aggregate filling is that cement completes crack
Irrigated using horizontal segment aggregate after filling, the aggregate body that blocks water is covered in cement and blocks water on body.
A kind of deep mining coal seam Hidden Karst Under karst collapse col umn method for blocking disclosed by the invention, aggregate is yellow ground.
Note is reinforced in a kind of deep mining coal seam Hidden Karst Under karst collapse col umn method for blocking disclosed by the invention, cement/flyash filling
Slurry is that cement/pulverized fuel ash slurry enters exhalant canal, filling fracture after completing aggregate filling, and cement blocks water body infiltration mixing resistance
Water body and aggregate block water body extend to mixing block water body bottom and wrap up that mixing blocks water body and aggregate blocks water body.
Using technical scheme, cement placement slip casting forms cement and blocks water body, is rapidly completed fracture filling, blocks
Substantial amounts of underground water is gushed out to working face, and cement placement slip casting, the flow of underground water has reduced, and working face water is from 150m3/
H starts to reduce, and water decays to 55~60m3/ h, the big crack of quick blocking is reached by the method for taking horizontal segment aggregate to fill
Purpose, after completing aggregate filling, the decay of working face water is slow, continues using cement/pulverized fuel ash slurry injection exhalant canal,
Rapid filling fracture, has reached the purpose of quick blocking water burst, and water yield decays to 5m3/ h, completes the improvement of water damage, uses
Cement/pulverized fuel ash slurry greatly reduces use cost；Form effectively " block water plug " in target zone, reach obstruct target zone and with
Lower aquifer in Ordovician limestone gushing water, and complete water conservation safe working.
Below with reference to embodiment, the present invention is described in detail.
Brief description of the drawings
The content expressed by each width accompanying drawing of this specification and the mark in figure are briefly described below：
Fig. 1 is that a kind of working face karst collapse col umn water gushing mechanism of deep mining coal seam Hidden Karst Under karst collapse col umn method for blocking of the present invention shows
It is intended to.
Specific embodiment
Below by the description to embodiment, to specific embodiment of the invention such as the shape of involved each component,
Construction, the mutual alignment between each several part and annexation, the effect of each several part and operation principle, manufacturing process and operate with
Method etc., is described in further detail, to help those skilled in the art to have inventive concept of the invention, technical scheme
More complete, accurate and deep understanding.
A kind of deep mining coal seam Hidden Karst Under karst collapse col umn method for blocking of the present invention, including grouting treatment, described grouting treatment
It is to use the filling and injecting slurry method slip casting of three stages by drilling, the filler block of complete relative water proof is formed in floor water-bearing rock；Three
Stage filling and injecting slurry method slip casting comprises the following steps：
First stage：Aggregate fills and to form aggregate and block water body；Second stage：Cement/flyash filling consolidation grouting is formed
Mix the body that blocks water；Phase III：Cement placement slip casting forms cement and blocks water body.
Cement placement slip casting is that, by the injection cement grout that drills, grouting pressure is approximately equal to water pressure, and cement blocks water position
In vertical range of the bottom of three ashes away from bottom be 80~90m；Aggregate filling is to use water after cement completes fracture filling
Flat section aggregate perfusion, the aggregate body that blocks water is covered in cement and blocks water on body；Wherein aggregate is yellow ground；Cement/flyash filling is reinforced
Slip casting is that after completing aggregate filling, cement/pulverized fuel ash slurry enters exhalant canal, and rapid filling fracture mixes the body infiltration that blocks water
Simultaneously wrap up that cement blocks water body and aggregate blocks water body in the bottom of cement blocks water body and aggregate blocks water body extends to cement blocks water body.
Fig. 1 is that a kind of working face karst collapse col umn water gushing mechanism of deep mining coal seam Hidden Karst Under karst collapse col umn method for blocking of the present invention shows
It is intended to, using technical scheme, cement placement slip casting forms cement and blocks water body, is rapidly completed fracture filling, blocking is big
The underground water of amount is gushed out to working face, and cement placement slip casting, the flow of underground water has reduced, and working face water is from 150m3/h
Start to reduce, water decays to 55~60m3/ h, the big crack of quick blocking is reached by the method for taking horizontal segment aggregate to fill
Purpose, after completing aggregate filling, the decay of working face water is slow, continues using cement/pulverized fuel ash slurry injection exhalant canal,
Rapid filling fracture, has reached the purpose of quick blocking water burst, and water yield decays to 5m3/ h, completes the improvement of water damage, uses
Cement/pulverized fuel ash slurry greatly reduces use cost；Form effectively " block water plug " in target zone, reach obstruct target zone and with
Lower aquifer in Ordovician limestone gushing water, and complete water conservation safe working.
The present invention is exemplarily described above in conjunction with embodiment, it is clear that the present invention is implemented and do not receive above-mentioned side
The limitation of formula, if the improvement of the various unsubstantialities that method of the present invention design and technical scheme are carried out is employed, or without
Improve and design of the invention and technical scheme are directly applied into other occasions, within protection scope of the present invention.
Claims (6)
1. a kind of deep mining coal seam Hidden Karst Under karst collapse col umn method for blocking, it is characterised in that：Including grouting treatment, described slip casting is controlled
Reason is to use the filling and injecting slurry method slip casting of three stages by drilling, and the filler block of complete relative water proof is formed in floor water-bearing rock.
2. according to a kind of deep mining coal seam Hidden Karst Under karst collapse col umn method for blocking described in claim 1, it is characterised in that：Described
The filling and injecting slurry method slip casting of three stages comprises the following steps：
First stage：Aggregate fills and to form aggregate and block water body；Second stage：Cement/flyash filling consolidation grouting forms mixing
Block water body；Phase III：Cement placement slip casting forms cement and blocks water body.
3. according to a kind of deep mining coal seam Hidden Karst Under karst collapse col umn method for blocking described in claim 1 or 2, it is characterised in that：Institute
The cement placement slip casting stated is that, by the injection cement grout that drills, grouting pressure is approximately equal to water pressure, and cement blocks water body positioned at three
Vertical range of the bottom of ash away from bottom is 80~90m.
4. according to a kind of deep mining coal seam Hidden Karst Under karst collapse col umn method for blocking described in claim 1, it is characterised in that：Described
Aggregate filling is that cement is completed after fracture filling using the perfusion of horizontal segment aggregate, and the aggregate body that blocks water is covered in cement and blocks water on body.
5. according to a kind of deep mining coal seam Hidden Karst Under karst collapse col umn method for blocking described in claim 4, it is characterised in that：Described
Aggregate is yellow ground.
6. according to a kind of deep mining coal seam Hidden Karst Under karst collapse col umn method for blocking described in claim 3, it is characterised in that：Described
Cement/flyash filling consolidation grouting is after completing aggregate filling, and cement/pulverized fuel ash slurry enters exhalant canal, filling fracture,
Cement block water body infiltration mixing block water body and aggregate block water body extend to mixing block water body bottom and wrap up mixing block water body and
Aggregate blocks water body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611101350.2A CN106761748A (en) | 2016-12-02 | 2016-12-02 | A kind of deep mining coal seam Hidden Karst Under karst collapse col umn method for blocking |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611101350.2A CN106761748A (en) | 2016-12-02 | 2016-12-02 | A kind of deep mining coal seam Hidden Karst Under karst collapse col umn method for blocking |
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| Publication Number | Publication Date |
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| CN106761748A true CN106761748A (en) | 2017-05-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201611101350.2A Pending CN106761748A (en) | 2016-12-02 | 2016-12-02 | A kind of deep mining coal seam Hidden Karst Under karst collapse col umn method for blocking |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108825263A (en) * | 2018-05-30 | 2018-11-16 | 陕煤集团神木张家峁矿业有限公司 | It is a kind of from appearing to the curtain-grouting method in real coal body section part burnt rock water-bearing layer |
| CN111075482A (en) * | 2020-01-02 | 2020-04-28 | 华北科技学院 | Working face collapse column grouting waterproof treatment method |
| CN112112559A (en) * | 2020-08-26 | 2020-12-22 | 山西晋城无烟煤矿业集团有限责任公司 | Method for segmented grouting of same grouting hole of underground mining face collapse column roadway |
| CN112610249A (en) * | 2020-12-22 | 2021-04-06 | 中煤科工集团西安研究院有限公司 | Method for preventing and controlling water damage of mine bottom plate under high-pressure-bearing flowing water condition |
| CN113374440A (en) * | 2021-05-28 | 2021-09-10 | 中煤科工集团西安研究院有限公司 | Rapid plugging method and construction method for water inrush channel of hidden collapse column |
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| CN103742172A (en) * | 2013-12-02 | 2014-04-23 | 陕西煤业化工技术研究院有限责任公司 | Method for blocking hydrogen-sulfide-contained water bursting point on bottom plate in grouting mode |
| CN104763428A (en) * | 2015-03-10 | 2015-07-08 | 太原理工大学 | Method of classified divisional grouting reinforcement of collapse columns to enable fully mechanized coal face to directly pass soft collapse column |
| CN106368731A (en) * | 2016-11-16 | 2017-02-01 | 中国神华能源股份有限公司 | Goaf disposal method |
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Patent Citations (3)
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| CN103742172A (en) * | 2013-12-02 | 2014-04-23 | 陕西煤业化工技术研究院有限责任公司 | Method for blocking hydrogen-sulfide-contained water bursting point on bottom plate in grouting mode |
| CN104763428A (en) * | 2015-03-10 | 2015-07-08 | 太原理工大学 | Method of classified divisional grouting reinforcement of collapse columns to enable fully mechanized coal face to directly pass soft collapse column |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108825263A (en) * | 2018-05-30 | 2018-11-16 | 陕煤集团神木张家峁矿业有限公司 | It is a kind of from appearing to the curtain-grouting method in real coal body section part burnt rock water-bearing layer |
| CN108825263B (en) * | 2018-05-30 | 2019-07-30 | 陕煤集团神木张家峁矿业有限公司 | It is a kind of from appearing to the curtain-grouting method in real coal body section part burnt rock water-bearing layer |
| CN111075482A (en) * | 2020-01-02 | 2020-04-28 | 华北科技学院 | Working face collapse column grouting waterproof treatment method |
| CN112112559A (en) * | 2020-08-26 | 2020-12-22 | 山西晋城无烟煤矿业集团有限责任公司 | Method for segmented grouting of same grouting hole of underground mining face collapse column roadway |
| CN112610249A (en) * | 2020-12-22 | 2021-04-06 | 中煤科工集团西安研究院有限公司 | Method for preventing and controlling water damage of mine bottom plate under high-pressure-bearing flowing water condition |
| CN113374440A (en) * | 2021-05-28 | 2021-09-10 | 中煤科工集团西安研究院有限公司 | Rapid plugging method and construction method for water inrush channel of hidden collapse column |
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| CB03 | Change of inventor or designer information |
Inventor after: Ni Jianming Inventor after: Zheng Shitian Inventor after: Wu Jianguo Inventor after: Zhao Shaolei Inventor after: Jiang Bo Inventor after: Wang Yuhang Inventor after: Miao Yusheng Inventor before: Ni Jianming Inventor before: Zheng Shitian Inventor before: Wu Jianguo Inventor before: Zhao Shaolei Inventor before: Jiang Bo Inventor before: Wang Yuhang |
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Application publication date: 20170531 |
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