CN108952776A - A kind of method of the equidistant horizontal orientation concordant bored grouting transformation dual limestone of roof and floor - Google Patents
A kind of method of the equidistant horizontal orientation concordant bored grouting transformation dual limestone of roof and floor Download PDFInfo
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- CN108952776A CN108952776A CN201810979246.6A CN201810979246A CN108952776A CN 108952776 A CN108952776 A CN 108952776A CN 201810979246 A CN201810979246 A CN 201810979246A CN 108952776 A CN108952776 A CN 108952776A
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- Prior art keywords
- limestone
- bottom plate
- construction
- concordant
- main aperture
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- 235000019738 Limestone Nutrition 0.000 title claims abstract description 48
- 239000006028 limestone Substances 0.000 title claims abstract description 45
- 238000000034 method Methods 0.000 title claims abstract description 16
- 230000009977 dual effect Effects 0.000 title claims abstract description 14
- 230000009466 transformation Effects 0.000 title claims abstract description 10
- 238000010276 construction Methods 0.000 claims abstract description 30
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 25
- 239000003245 coal Substances 0.000 claims abstract description 13
- 239000004568 cement Substances 0.000 claims abstract description 8
- 239000002002 slurry Substances 0.000 claims abstract description 8
- 239000011435 rock Substances 0.000 claims abstract description 7
- 238000005553 drilling Methods 0.000 claims abstract description 6
- 238000007569 slipcasting Methods 0.000 claims abstract description 5
- 230000004888 barrier function Effects 0.000 claims abstract description 4
- 238000004140 cleaning Methods 0.000 claims abstract description 4
- 239000007788 liquid Substances 0.000 claims abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000011440 grout Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/38—Waterproofing; Heat insulating; Soundproofing; Electric insulating
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/04—Directional drilling
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Geology (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Architecture (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Civil Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The invention discloses a kind of method of equidistant horizontal orientation concordant bored grouting transformation dual limestone of roof and floor, construction drill founds hole section and inclination section, adjusts orientation construction bottom plate main aperture and constructs forward into after bottom limestone along concordant in the middle part of limestone；After the completion of the construction of bottom plate main aperture, on the basis of bottom plate main aperture, basement rock suitable position adjusts orientation construction bottom plate branched hole, and protrusive grouting mode is taken to infuse single liquid cement slurry, construction other bottom plate branched holes of bottom plate in a similar manner, are transformed into water barrier for limestone aquifer；Bottom plate main aperture is all after construction, cleaning bottom of hole adjusts orientation construction top plate main aperture after going out the inclination section of second level casing again, into after the top limestone of coal seam, construction coal top plate limestone concordant top plate branched hole in a similar manner, protrusive high-pressure slip-casting technique infuses loess cement slurry, transform top plate limestone as aquitard.That the beneficial effects of the invention are as follows drilling project amounts is small, covering target zone range is wide, the unrestrained water of top plate is few.
Description
Technical field
The invention belongs to technical field of coal exploitation, are related to a kind of equidistant horizontal orientation concordant bored grouting transformation roof and floor
The method of dual limestone.
Background technique
Seat earth limestone pressure-bearing water harnessing more mature technical method in the country's is at present: passing through note using surface grout injection station
Pipeline and working face in the pit injected hole are starched to bottom plate limestone pre-pouring grout, the Karst Fissures and water guide for filling bottom plate grieshoch water-bearing layer are split
Feed channel of cutting off the water supply is replaced away and realized to gap the water in thin layer limestone, makes to be transformed by note water-bearing layer not aqueous
Or aquitard, realize working face safe working, achieve preferable effect, but underground limited space, drilling construction apart from short,
Construction work amount is big, and cost of ton coal is high, and safety coefficient is relatively low.
But for being pushed up, the coal seam that the dual limestone aquifer water damage of bottom plate threatens, since roof water and ash difficult to understand have waterpower connection
System, it is difficult to which drainage, water drainage is costly, waste groundwater resources and economically unreasonable, is difficult to exploit always, causes resource not
It can exploitation.Roof water is difficult to drainage in the prior art and effluent cost is high, destroys the ecological balance of underground water, water-bearing layer slip casting
Range is indefinite to cause grouting amount big, increases grouting cost.
Summary of the invention
The purpose of the present invention is to provide a kind of equidistant horizontal orientation concordant bored grouting transformation dual limestones of roof and floor
Method, that the beneficial effects of the invention are as follows drilling project amounts is small, covering target zone range is wide, the unrestrained water of top plate is few, prevention and treatment water conservancy project
Work can carry out in advance, anti-comprehensive cost of harnessing the river substantially reduces.
The technical scheme adopted by the invention is that following the steps below:
Step 1: selecting suitable drill site position aperture construction drill to found hole section, since after level-one casing using non magnetic drill collar
Construct inclination section, into basement rock after lower second level casing；
Step 2: orientation construction bottom plate main aperture is adjusted after drilling out inclination section, into after bottom limestone, along limestone
Portion's concordant is constructed forward；
Step 3: after the completion of the construction of bottom plate main aperture, on the basis of bottom plate main aperture, basement rock suitable position adjusts orientation construction
Bottom plate branched hole takes protrusive grouting mode to infuse single liquid cement slurry, other bottom plate branched holes of bottom plate of constructing in a similar manner will
Limestone aquifer is transformed into water barrier；
Step 4: bottom plate main aperture is all after construction, then cleaning bottom of hole go out the inclination section of second level casing after adjust orientation construction top
Plate main aperture, into after the top limestone of coal seam, construction coal top plate limestone concordant top plate branched hole in a similar manner, protrusive high pressure
Grouting process infuses loess cement slurry, transform top plate limestone as aquitard.
Further, the vertical hole section that drills in step 1 uses ￠ 311mm level-one casing 80m；￠ 244mm second level set under inclination section
Pipe.
Further, concordant is constructed forward 400-700m in the middle part of the limestone in step 2.
Further, concordant is constructed forward 400-700m in the middle part of the top limestone in step 4.
Detailed description of the invention
Fig. 1 is the dual limestone structural schematic diagram of roof and floor of the present invention；
Fig. 2 is bottom plate branched hole schematic diagram；
Fig. 3 is top plate branched hole schematic diagram.
In figure, 1. vertical hole sections, 2. inclination sections, 3. bottom plate main apertures, 301. bottom plate branched holes, 4. bottom limestones, 5. tops
Plate main aperture, 501. top plate branched holes, 6. coal seam top limestones.
Specific embodiment
The present invention is described in detail With reference to embodiment.
The method of the equidistant horizontal orientation concordant bored grouting transformation dual limestone of roof and floor of the present invention is as shown in Figure 1 to Figure 3:
1, suitable drill site position aperture construction drill is selected to found hole section 1, using ￠ 311mm level-one casing 80m.From level-one set
Start inclination section 2 of constructing using non magnetic drill collar (1-2 °) after pipe, into basement rock after lower ￠ 244mm second level casing.
2, orientation construction bottom plate main aperture 3 is adjusted after drilling out inclination section 2, into after bottom limestone 4, along limestone 4
Portion's concordant is constructed forward 400-700m.
3, after the completion of bottom plate main aperture 3 is constructed, on the basis of bottom plate main aperture 3, basement rock suitable position adjusts orientation construction bottom
Plate branched hole 301 takes protrusive grouting mode to infuse single liquid cement slurry, other bottom plate branched holes of bottom plate of constructing in a similar manner
301.4 water-bearing layer of limestone is transformed into water barrier.
4, bottom plate main aperture 3 is all after construction, then cleaning bottom of hole go out the inclination section 2 of second level casing after adjust orientation construction top plate
Main aperture 5 is constructed forward 400-700m into after coal seam top limestone 6 along 6 middle part concordant of limestone.Construction coal in a similar manner
6 concordant top plate branched hole 501 of top plate limestone, protrusive high-pressure slip-casting technique are infused loess cement slurry, top plate limestone 6 are transform as weak
Water-bearing layer.
It is also an advantage of the present invention that:
(1) coal seam threatened by the dual limestone aquifer of roof and floor has successfully been liberated；
(2) it solves the problems, such as that roof water is difficult to drainage, realizes water-retaining production；
(3) limestone aquifer preservation range is clear, and slip casting effect is good, reduces grouting cost；
(4) the underground water ecological balance is protected.
(5) mine that this technology is equally applicable for that iron ore or nonmetallic ore etc. are threatened by the dual water damage of roof and floor realizes peace
Complete economic water-retaining production.
The above is only not to make limit in any form to the present invention to better embodiment of the invention
System, any simple modification that embodiment of above is made according to the technical essence of the invention, equivalent variations and modification,
Belong in the range of technical solution of the present invention.
Claims (4)
1. a kind of method of the equidistant horizontal orientation concordant bored grouting transformation dual limestone of roof and floor, it is characterised in that according to following
Step carries out:
Step 1: select suitable drill site position aperture construction drill to found hole section, since after level-one casing using non magnetic drill collar construct
Inclination section, into basement rock after lower second level casing；
Step 2: orientation construction bottom plate main aperture is adjusted after drilling out inclination section, it is suitable in the middle part of limestone into after bottom limestone
Layer is constructed forward；
Step 3: after the completion of the construction of bottom plate main aperture, on the basis of bottom plate main aperture, basement rock suitable position adjusts orientation construction bottom plate
Branched hole takes protrusive grouting mode to infuse single liquid cement slurry, other bottom plate branched holes of bottom plate of constructing in a similar manner, by limestone
Water-bearing layer is transformed into water barrier；
Step 4: bottom plate main aperture is all after construction, then cleaning bottom of hole go out the inclination section of second level casing after adjust orientation construction top plate master
Hole, into after the top limestone of coal seam, construction coal top plate limestone concordant top plate branched hole in a similar manner, protrusive high-pressure slip-casting
Technique infuses loess cement slurry, transform top plate limestone as aquitard.
2. according to a kind of method of equidistant horizontal orientation concordant bored grouting transformation dual limestone of roof and floor described in claim 1,
It is characterized by: the vertical hole section that drills in the step 1 uses ￠ 311mm level-one casing 80m；￠ 244mm second level set under inclination section
Pipe.
3. according to a kind of method of equidistant horizontal orientation concordant bored grouting transformation dual limestone of roof and floor described in claim 1,
It is characterized by: concordant is constructed forward 400-700m in the middle part of the limestone in the step 2.
4. according to a kind of method of equidistant horizontal orientation concordant bored grouting transformation dual limestone of roof and floor described in claim 1,
It is characterized by: concordant is constructed forward 400-700m in the middle part of the top limestone in the step 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810979246.6A CN108952776A (en) | 2018-08-27 | 2018-08-27 | A kind of method of the equidistant horizontal orientation concordant bored grouting transformation dual limestone of roof and floor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810979246.6A CN108952776A (en) | 2018-08-27 | 2018-08-27 | A kind of method of the equidistant horizontal orientation concordant bored grouting transformation dual limestone of roof and floor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108952776A true CN108952776A (en) | 2018-12-07 |
Family
ID=64474149
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810979246.6A Pending CN108952776A (en) | 2018-08-27 | 2018-08-27 | A kind of method of the equidistant horizontal orientation concordant bored grouting transformation dual limestone of roof and floor |
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| CN (1) | CN108952776A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109899089A (en) * | 2019-03-07 | 2019-06-18 | 中煤科工集团西安研究院有限公司 | Goaf grouting method based on pinniform horizontal branch directional drilling technique |
| CN110469293A (en) * | 2019-09-17 | 2019-11-19 | 中国煤炭地质总局水文地质局 | A kind of mine EXIT POINT plugging technology |
| CN110486022A (en) * | 2019-09-11 | 2019-11-22 | 中煤科工集团西安研究院有限公司 | The advanced Regional pattern classification in seat earth water-bearing layer determines method |
| CN110566118A (en) * | 2019-09-09 | 2019-12-13 | 中煤科工集团西安研究院有限公司 | Advanced grouting transformation method for combined directional hole of underground deep-buried aquifer bottom plate of coal mine |
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| JP2001032687A (en) * | 1999-07-23 | 2001-02-06 | Kajima Corp | Water cut-off method for tail part of rectangular segment and device therefor |
| CN102877884A (en) * | 2012-09-13 | 2013-01-16 | 山东能源集团有限公司 | Method for modification and construction of top of Ordovician limestone of mine based on kilometer directional drilling technique |
| CN106703692A (en) * | 2016-12-02 | 2017-05-24 | 淮北矿业股份有限公司 | Method using surface orientation bedding drilling grouting to reinforce laminar limestone |
| CN106948843A (en) * | 2017-03-21 | 2017-07-14 | 山东省邱集煤矿 | A kind of double-deck multiple-limb concordant bored grouting transformation dual limestone aquifer method of roof and floor |
| CN107740701A (en) * | 2017-11-27 | 2018-02-27 | 山东省邱集煤矿 | A kind of method of the accurate grout transformation of top plate thin layer limestone aquifer |
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Patent Citations (5)
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| JP2001032687A (en) * | 1999-07-23 | 2001-02-06 | Kajima Corp | Water cut-off method for tail part of rectangular segment and device therefor |
| CN102877884A (en) * | 2012-09-13 | 2013-01-16 | 山东能源集团有限公司 | Method for modification and construction of top of Ordovician limestone of mine based on kilometer directional drilling technique |
| CN106703692A (en) * | 2016-12-02 | 2017-05-24 | 淮北矿业股份有限公司 | Method using surface orientation bedding drilling grouting to reinforce laminar limestone |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109899089A (en) * | 2019-03-07 | 2019-06-18 | 中煤科工集团西安研究院有限公司 | Goaf grouting method based on pinniform horizontal branch directional drilling technique |
| CN110566118A (en) * | 2019-09-09 | 2019-12-13 | 中煤科工集团西安研究院有限公司 | Advanced grouting transformation method for combined directional hole of underground deep-buried aquifer bottom plate of coal mine |
| CN110566118B (en) * | 2019-09-09 | 2021-03-26 | 中煤科工集团西安研究院有限公司 | Advanced grouting transformation method for combined directional hole of underground deep-buried aquifer bottom plate of coal mine |
| CN110486022A (en) * | 2019-09-11 | 2019-11-22 | 中煤科工集团西安研究院有限公司 | The advanced Regional pattern classification in seat earth water-bearing layer determines method |
| CN110486022B (en) * | 2019-09-11 | 2020-12-22 | 中煤科工集团西安研究院有限公司 | Method for determining treatment mode classification of advanced region of coal seam floor aquifer |
| CN110469293A (en) * | 2019-09-17 | 2019-11-19 | 中国煤炭地质总局水文地质局 | A kind of mine EXIT POINT plugging technology |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181207 |
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| RJ01 | Rejection of invention patent application after publication |