CN104329092A - Old empty water waterproof coal pillar setting-up method - Google Patents
Old empty water waterproof coal pillar setting-up method Download PDFInfo
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- CN104329092A CN104329092A CN201410441276.3A CN201410441276A CN104329092A CN 104329092 A CN104329092 A CN 104329092A CN 201410441276 A CN201410441276 A CN 201410441276A CN 104329092 A CN104329092 A CN 104329092A
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- exploitation
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- coal
- empty water
- old empty
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- E—FIXED CONSTRUCTIONS
- E21—EARTH 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
Abstract
The invention relates to an old empty water waterproof coal pillar setting-up method. The method comprises the following steps: step 10, determining the coal exploitation related geological parameters of a working plane to be exploited; step 20, calculating the distribution range of the top plate support pressure along the coal layer direction according to the mine pressure theory; step 30, taking the determined distribution range in the step 20 as the minimal width of an old empty water waterproof coal pillar. In the method, two related geological parameters namely the height of an exploitation coal layer of a working plane and the exploitation lowest depth are adopted, and the two related geological parameters are easy to obtain. According to the working plane exploitation coal layer height (h) and the exploitation lowest depth (H), the distribution range of the top plate support pressure along the coal layer direction can be determined, and thus the minimal width of a old empty water waterproof coal pillar can be determined. The calculation is simple and convenient, and the provided method is suitable for being used by on-site working personnel.
Description
Technical field
The present invention relates to field, colliery, particularly the old empty water barrier pillar of one stays equipment, method.
Background technology
Due to old empty glassware for drinking water large, the destructive feature such as strong of short, the water yield if having time, very easily cause the major accident of flooding head, flooding face and hurting sb.'s feelings, the safety in production of serious threat mine.Old empty staying of water barrier pillar is established, Chinese scholars has carried out some useful groping and attempting, as adopted experience analogy method, utilizing theoretical or empirical formula method, analog study etc., these methods lack theoretical foundation or for old empty underwater mining analogy method is complicated or difficult parameters to obtain.It is a quite complicated problem that rationally the staying of old empty water barrier pillar is established, and still to need in production practices research further perfect gradually.Therefore, find the parameter being easy to the old empty water barrier pillar width of calculating obtained, and a kind of convenience of calculation, simple and clear method, the setting tool of staying for barrier pillar has important theory and realistic meaning.
Summary of the invention
For meeting the demand of coal production and safety, the object of this invention is to provide that a kind of parameter easily obtains, convenience of calculation, simple old empty water barrier pillar stay equipment, method.
For solving the problems of the technologies described above, as one aspect of the present invention, providing a kind of old empty water barrier pillar and staying equipment, method, comprising: step 10, the coal mining determining to be about to exploitation work plane is correlated with geologic parameter; Step 20, theoretical according to mine pressure, calculate the distribution of top plate supporting pressure along direction, coal seam; Step 30, using the minimum widith of determined for step 20 distribution as old empty water barrier pillar.
Further, the parameter in step 1 comprises mining height and the exploitation minimum air velocity in working face mining coal seam.
Further, step 20 comprises: in the distribution figure of top plate supporting pressure along direction, coal seam, find the curve corresponding to mining height, then, draw a vertical line in the position corresponding to exploitation minimum air velocity, draw a horizon from the intersection point of this vertical line and mining height to the coordinate axes at the distribution place of distribution figure, the intersection point of this horizon and coordinate axes, is distribution.
The present invention chooses the mining height in working face mining coal seam and the relevant geologic parameter of exploitation minimum air velocity two coal mining, achieves the object that parameter is easy to obtain; Determine the distribution of top plate supporting pressure along direction, coal seam according to the mining height h in working face mining coal seam and exploitation minimum air velocity H, and then determine the method for minimum widith of old empty water barrier pillar, convenience of calculation, simple, be adapted to the application of field personnel.
Accompanying drawing explanation
Fig. 1 is the inventive method flow chart;
Fig. 2 is the distribution figure of top plate supporting pressure along direction, coal seam.
Detailed description of the invention
Below embodiments of the invention are described in detail, but the multitude of different ways that the present invention can be defined by the claims and cover is implemented.
Please refer to accompanying drawing 1-2, the invention provides a kind of old empty water barrier pillar and stay equipment, method, comprising: step 10, the coal mining determining to be about to exploitation work plane is correlated with geologic parameter, preferably, the relevant geologic parameter of described coal mining is determined according to bore hole columnar section and the means of production; Step 20, theoretical according to mine pressure, calculate the distribution of top plate supporting pressure along direction, coal seam; Step 30, using the minimum widith of determined for described step 20 described distribution as old empty water barrier pillar.
Preferably, the parameter in described step 1 comprises mining height h and the exploitation minimum air velocity H in working face mining coal seam.
Preferably, described step 20 comprises: in the distribution figure of top plate supporting pressure along direction, coal seam, find the curve corresponding to described mining height, then, draw a vertical line in the position corresponding to described exploitation minimum air velocity, draw a horizon, the intersection point of this horizon and described coordinate axes from the intersection point of this vertical line and described mining height to the coordinate axes at the distribution place of described distribution figure, be described distribution.
Such as, mining height h is 0.5m, exploitation minimum air velocity H is the work plane of 200m, first on Fig. 2, find the curve of h=0.5, then axis of abscissas correspond to 200 position draw a vertical line 1, meet on the curve of h=0.5, then meet at axis of ordinates from this strokes and dots horizon 2, the numerical value of this point so on axis of ordinates is the distribution L of top plate supporting pressure along direction, coal seam.
Technique effect of the present invention is: choose the mining height in working face mining coal seam and the relevant geologic parameter of exploitation minimum air velocity two coal mining, achieve the object that parameter is easy to obtain; Determine the distribution of top plate supporting pressure along direction, coal seam according to the mining height h in working face mining coal seam and exploitation minimum air velocity H, and then determine the method for minimum widith of old empty water barrier pillar, convenience of calculation, simple, be adapted to the application of field personnel.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (3)
1. old empty water barrier pillar stays an equipment, method, it is characterized in that, comprising:
Step 10, determines that the coal mining being about to exploitation work plane is correlated with geologic parameter;
Step 20, theoretical according to mine pressure, calculate the distribution of top plate supporting pressure along direction, coal seam;
Step 30, using the minimum widith of determined for described step 20 described distribution as old empty water barrier pillar.
2. method according to claim 1, is characterized in that, the parameter in described step 1 comprises mining height and the exploitation minimum air velocity in working face mining coal seam.
3. method according to claim 2, it is characterized in that, described step 20 comprises: in the distribution figure of top plate supporting pressure along direction, coal seam, find the curve corresponding to described mining height, then, draw a vertical line in the position corresponding to described exploitation minimum air velocity, draw a horizon from the intersection point of this vertical line and described mining height to the coordinate axes at the distribution place of described distribution figure, the intersection point of this horizon and described coordinate axes, is described distribution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410441276.3A CN104329092A (en) | 2014-09-01 | 2014-09-01 | Old empty water waterproof coal pillar setting-up method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410441276.3A CN104329092A (en) | 2014-09-01 | 2014-09-01 | Old empty water waterproof coal pillar setting-up method |
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| Publication Number | Publication Date |
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| CN104329092A true CN104329092A (en) | 2015-02-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410441276.3A Pending CN104329092A (en) | 2014-09-01 | 2014-09-01 | Old empty water waterproof coal pillar setting-up method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112922598A (en) * | 2021-03-23 | 2021-06-08 | 中矿科创(北京)煤炭技术有限公司 | Method for reducing gob-side entry driving roof pressure through roof cutting and pressure relief |
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| CN102505943A (en) * | 2011-11-21 | 2012-06-20 | 西安科技大学 | Water conservation coal cutting method for small and medium-sized coal mines in waterhead area |
| CN103510956A (en) * | 2013-08-30 | 2014-01-15 | 中国矿业大学(北京) | Method for reducing reserved width of waterproof coal pillars of inclined coal seam |
| CN103924975A (en) * | 2014-04-16 | 2014-07-16 | 河北煤炭科学研究院 | Water retaining method for coal mining process |
| CN103982203A (en) * | 2014-05-22 | 2014-08-13 | 太原理工大学 | Method for stopping inrushing of goaf water of mine |
-
2014
- 2014-09-01 CN CN201410441276.3A patent/CN104329092A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102505943A (en) * | 2011-11-21 | 2012-06-20 | 西安科技大学 | Water conservation coal cutting method for small and medium-sized coal mines in waterhead area |
| CN103510956A (en) * | 2013-08-30 | 2014-01-15 | 中国矿业大学(北京) | Method for reducing reserved width of waterproof coal pillars of inclined coal seam |
| CN103924975A (en) * | 2014-04-16 | 2014-07-16 | 河北煤炭科学研究院 | Water retaining method for coal mining process |
| CN103982203A (en) * | 2014-05-22 | 2014-08-13 | 太原理工大学 | Method for stopping inrushing of goaf water of mine |
Non-Patent Citations (2)
| Title |
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| 李冠良等: "老空水防治技术探讨", 《煤炭工程》 * |
| 杨锦华等: "七一新发煤业五采区防水煤柱合理留设研究", 《中国煤炭》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112922598A (en) * | 2021-03-23 | 2021-06-08 | 中矿科创(北京)煤炭技术有限公司 | Method for reducing gob-side entry driving roof pressure through roof cutting and pressure relief |
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Application publication date: 20150204 |