CN101608552A - The seat earth aquifer reinforces and protects the method for water barrier in reinforcing process - Google Patents
The seat earth aquifer reinforces and protects the method for water barrier in reinforcing process Download PDFInfo
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- CN101608552A CN101608552A CNA200810050051XA CN200810050051A CN101608552A CN 101608552 A CN101608552 A CN 101608552A CN A200810050051X A CNA200810050051X A CN A200810050051XA CN 200810050051 A CN200810050051 A CN 200810050051A CN 101608552 A CN101608552 A CN 101608552A
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- aquifer
- boring
- seat earth
- water barrier
- limestone
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Abstract
The invention discloses a kind of seat earth aquifer reinforced and protected water barrier in reinforcing process method, may further comprise the steps: 1) at first utilize transient electromagnetic that stope is carried out physical prospecting, verify the position, aquifer; 2) reinforce boring according to the physical prospecting result at the aquifer location arrangements, the angle α that reinforces between boring and the horizontal plane adopts high inclination-angle, 3 as far as possible) adopt cement paste slip casting, 4 by reinforcing boring) the whole hole of slip casting pressure should be controlled at L
8Below 2 times of limestone hydraulic pressure, this method have thoroughly solved stope and have been forced to the passive situation that stops to produce because of gushing water is dangerous.
Description
Technical field
The present invention relates to field of mining, especially at seat earth L
8The mine that limestone has gushing water to threaten is carrying out base plate L
8The limestone grouting and reinforcing is also effectively protected seat earth and L in reinforcing process
8The method of water barrier between the limestone.
Background technology
Along with the increase of the pit mining degree of depth, seat earth L
8The hydraulic pressure of limestone also increases thereupon, and this just requires carrying out seat earth L
8Grouting pressure during the limestone grouting and reinforcing also increases, owing to existing reinforce boring and all adopt the small inclination construction, grouting pressure did not add control when the big and grouting and reinforcing of the length of seat earth water barrier was passed in boring in the slip casting process; Cause seat earth L
8Seat earth and L have been destroyed in the time of the limestone grouting and reinforcing
8Water barrier between the limestone causes coal seam bottom water bursting in the exploitation process.
Summary of the invention
The purpose of this invention is to provide a kind of stope working surface of coal mines seat earth L
8Seat earth and L are reinforced and effectively protected to limestone in reinforcing process
8The method of water barrier between the limestone.
Technical scheme of the present invention is: a kind of seat earth aquifer reinforces and protects the method for water barrier in reinforcing process, may further comprise the steps:
1) at first utilizes transient electromagnetic that stope is carried out physical prospecting, verify the position, aquifer;
2) reinforce boring according to the physical prospecting result at the aquifer location arrangements, the angle α that reinforces between boring and the horizontal plane adopts high inclination-angle as far as possible, reinforces to enter L after water barrier is passed in boring
8The ash rock stratum reinforces the seat earth L of boring to stope by this
8Grouting and reinforcing is carried out in the limestone crack; High inclination-angle boring can make the destruction water barrier of minimum degree in the slip casting process;
3) adopt cement paste slip casting by reinforcing boring, cement paste had both been reinforced seat earth L
8Limestone aquifer has been protected the water barrier between seat earth and the aquifer again;
4) the whole hole of slip casting pressure should be controlled at L
8Below 2 times of limestone hydraulic pressure, too high grouting pressure is to shutoff L
8The crack effect of limestone aquifer is not too obvious, but can very seriously destroy the water barrier between the seat earth aquifer.
Angle α between boring and the horizontal plane is 25 °-90 °.
Advantage of the present invention:
1, simple to operate, be convenient to construction, effect is very good.
2, for remarkable by the stope effect of gushing water danger, this method has thoroughly solved stope and has been forced to the passive situation that stops to produce because of gushing water is dangerous.
Description of drawings
Fig. 1 is a structural representation of the present invention.
The specific embodiment
Structure of the present invention is as shown in Figure 1: comprise tunnel 1, seat earth L in coal seam 3, the coal seam
8Limestone aquifer 5 and seat earth L
8Water barrier 2 between limestone aquifer and the coal seam.
According to the analysis of causes of stope coal seam bottom water bursting, the reason of gushing water mainly is: to seat earth aquifer L
8When limestone is reinforced, seat earth and L have also been destroyed
8Water barrier between the limestone, because that press in the ore deposit is bigger, during working face extraction, seat earth destroys serious, end distension especially, therefore coal seam bottom water bursting in the time of will causing back production like this, is carrying out stope seat earth L
8During the limestone grouting and reinforcing, the present invention takes the following slip casting measure of controlling targetedly, and concrete steps are as follows:
1) at first utilizes transient electromagnetic that stope is carried out physical prospecting, verify seat earth L
8The limestone aquifer position;
2) according to the physical prospecting result at seat earth L
8The limestone aquifer position reinforces boring 4 by arranging in the tunnel 1, the angle α that reinforces between boring 4 and the horizontal plane adopts high inclination-angle as far as possible, the angle α of high inclination-angle boring is 25 °-90 °, thereby can make the destruction seat earth water barrier of short minimum degree of distance in the slip casting process;
3); Adopt cement paste to carry out slip casting by reinforcing boring 4, cement paste had both been reinforced seat earth L
8Limestone aquifer has been protected the water barrier 2 between seat earth and the aquifer again;
4) the whole hole of slip casting pressure should be controlled at L
8Below 2 times of limestone hydraulic pressure are because draw too high grouting pressure to shutoff L by test
8The crack effect of limestone aquifer is not too obvious, but has very seriously destroyed the water barrier between the seat earth aquifer.
High hydraulic pressure mine coal seam base plate aquifer reinforces the new method Economic and Efficiency Analysis
(1) for seat earth L
8When reinforcing, adopts limestone seat earth and L
8The guard method of limestone water barrier has thoroughly solved the base plate gushing water of stope in exploitation process and has been forced to the passive situation that stops to produce.
(2) guaranteed the safety of stope, it produces economic benefit and can't calculate.
Claims (2)
1, a kind of seat earth aquifer reinforce and in reinforcing process the method for protection water barrier, may further comprise the steps:
1) at first utilizes transient electromagnetic that stope is carried out physical prospecting, verify the position, aquifer;
2) reinforce boring according to the physical prospecting result at the aquifer location arrangements, the angle α that reinforces between boring and the horizontal plane adopts high inclination-angle as far as possible, reinforces to enter L after water barrier is passed in boring
8The ash rock stratum reinforces the seat earth L of boring to stope by this
8Grouting and reinforcing is carried out in the limestone crack; High inclination-angle boring can make the destruction water barrier of minimum degree in the slip casting process;
3) adopt cement paste slip casting by reinforcing boring, cement paste had both been reinforced seat earth L
8Limestone aquifer has been protected the water barrier between seat earth and the aquifer again;
4) the whole hole of slip casting pressure should be controlled at L
8Below 2 times of limestone hydraulic pressure, too high grouting pressure is to shutoff L
8The crack effect of limestone aquifer is not too obvious, but can very seriously destroy the water barrier between the seat earth aquifer.
2, seat earth according to claim 1 aquifer reinforce and in reinforcing process the method for protection water barrier, it is characterized in that: the angle α between boring and the horizontal plane is 25 °-90 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200810050051XA CN101608552A (en) | 2008-06-18 | 2008-06-18 | The seat earth aquifer reinforces and protects the method for water barrier in reinforcing process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200810050051XA CN101608552A (en) | 2008-06-18 | 2008-06-18 | The seat earth aquifer reinforces and protects the method for water barrier in reinforcing process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101608552A true CN101608552A (en) | 2009-12-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA200810050051XA Pending CN101608552A (en) | 2008-06-18 | 2008-06-18 | The seat earth aquifer reinforces and protects the method for water barrier in reinforcing process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101608552A (en) |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102400698A (en) * | 2010-09-17 | 2012-04-04 | 焦作煤业集团赵固（新乡）能源有限责任公司 | Method for controlling rib spalling in double hard high-mining-height fully-mechanized mining face coal wall |
| 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 |
| CN103032083A (en) * | 2012-12-21 | 2013-04-10 | 中南大学 | Reconstruction method for water-proof shell |
| CN103291325A (en) * | 2013-06-25 | 2013-09-11 | 山东科技大学 | Method for preventing and controlling water burst of coal mining base board rock stratum on pressure bearing water body |
| CN104088619A (en) * | 2014-06-26 | 2014-10-08 | 新奥气化采煤有限公司 | Method for increasing strength of rock stratum above coal seam and underground gasification furnace building method |
| CN104847379A (en) * | 2015-03-20 | 2015-08-19 | 山东科技大学 | Method for reinforcing working surface bottom plate by Ordovician limestone top grouting |
| CN104989403A (en) * | 2015-06-02 | 2015-10-21 | 国投新集能源股份有限公司 | Method for reconstructing floor limestone aquifer into natural-artificial composite integrated aquiclude |
| CN106437790A (en) * | 2016-12-02 | 2017-02-22 | 淮北矿业股份有限公司 | High-pressure-intensity water-containing layer karst fissure grouting method of difficult mining coal seam base plate thin-layer limestone |
| CN106869967A (en) * | 2017-04-05 | 2017-06-20 | 中煤科工集团西安研究院有限公司 | The routed sand remote jet disturbance grouting method of driving face gushing water |
| 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 |
| CN108798589A (en) * | 2018-04-28 | 2018-11-13 | 安徽建筑大学 | A kind of water-bearing layer method of modifying |
| 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 |
| CN111075482A (en) * | 2020-01-02 | 2020-04-28 | 华北科技学院 | Working face collapse column grouting waterproof treatment method |
| WO2020192055A1 (en) * | 2019-03-25 | 2020-10-01 | 中国矿业大学 | Two-step grouting modified water-protective coal mining method for roof aquifers |
| CN112761677A (en) * | 2020-12-09 | 2021-05-07 | 中国矿业大学 | Underground coal mine water prevention and control method for grouting water-resisting layer by adopting mechanical digging groove construction |
| CN113738445A (en) * | 2021-09-13 | 2021-12-03 | 紫金矿业集团股份有限公司 | Water plugging and leaking-off process for floor aquifer |
-
2008
- 2008-06-18 CN CNA200810050051XA patent/CN101608552A/en active Pending
Cited By (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102400698A (en) * | 2010-09-17 | 2012-04-04 | 焦作煤业集团赵固（新乡）能源有限责任公司 | Method for controlling rib spalling in double hard high-mining-height fully-mechanized mining face coal wall |
| CN102877884B (en) * | 2012-09-13 | 2016-03-16 | 山东能源集团有限公司 | The difficult to understand grey top transformation of a kind of mine based on km directional drilling technology and construction method |
| 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 |
| CN103032083A (en) * | 2012-12-21 | 2013-04-10 | 中南大学 | Reconstruction method for water-proof shell |
| CN103291325A (en) * | 2013-06-25 | 2013-09-11 | 山东科技大学 | Method for preventing and controlling water burst of coal mining base board rock stratum on pressure bearing water body |
| CN103291325B (en) * | 2013-06-25 | 2015-08-19 | 山东科技大学 | The preventing control method of Coal-mining Above Confined-water floor strata gushing water |
| CN104088619A (en) * | 2014-06-26 | 2014-10-08 | 新奥气化采煤有限公司 | Method for increasing strength of rock stratum above coal seam and underground gasification furnace building method |
| CN104847379A (en) * | 2015-03-20 | 2015-08-19 | 山东科技大学 | Method for reinforcing working surface bottom plate by Ordovician limestone top grouting |
| CN104847379B (en) * | 2015-03-20 | 2016-01-13 | 山东科技大学 | The method of a kind of Austria grey top grouting and reinforcing floor undulation |
| CN104989403A (en) * | 2015-06-02 | 2015-10-21 | 国投新集能源股份有限公司 | Method for reconstructing floor limestone aquifer into natural-artificial composite integrated aquiclude |
| CN104989403B (en) * | 2015-06-02 | 2017-05-10 | 国投新集能源股份有限公司 | Method for reconstructing floor limestone aquifer into natural-artificial composite integrated aquiclude |
| CN106437790A (en) * | 2016-12-02 | 2017-02-22 | 淮北矿业股份有限公司 | High-pressure-intensity water-containing layer karst fissure grouting method of difficult mining coal seam base plate thin-layer limestone |
| CN106437790B (en) * | 2016-12-02 | 2018-12-25 | 淮北矿业股份有限公司 | Hard-to-recovery reserve bottom plate thin layer limestone high pressure strong aquifer Karst Fissures grouting method |
| CN106869967A (en) * | 2017-04-05 | 2017-06-20 | 中煤科工集团西安研究院有限公司 | The routed sand remote jet disturbance grouting method of driving face gushing water |
| 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 |
| CN108798589A (en) * | 2018-04-28 | 2018-11-13 | 安徽建筑大学 | A kind of water-bearing layer method of modifying |
| CN108798589B (en) * | 2018-04-28 | 2020-07-28 | 安徽建筑大学 | Modification method of aquifer |
| WO2020192055A1 (en) * | 2019-03-25 | 2020-10-01 | 中国矿业大学 | Two-step grouting modified water-protective coal mining method for roof aquifers |
| 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 |
| CN111075482A (en) * | 2020-01-02 | 2020-04-28 | 华北科技学院 | Working face collapse column grouting waterproof treatment method |
| CN112761677A (en) * | 2020-12-09 | 2021-05-07 | 中国矿业大学 | Underground coal mine water prevention and control method for grouting water-resisting layer by adopting mechanical digging groove construction |
| CN113738445A (en) * | 2021-09-13 | 2021-12-03 | 紫金矿业集团股份有限公司 | Water plugging and leaking-off process for floor aquifer |
| CN113738445B (en) * | 2021-09-13 | 2022-12-09 | 紫金矿业集团股份有限公司 | Water plugging and leaking-off process for floor aquifer |
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Open date: 20091223 |