CN105156116A - Coal mine stoping roadway designing and constructing method - Google Patents
Coal mine stoping roadway designing and constructing method Download PDFInfo
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- CN105156116A CN105156116A CN201510537723.XA CN201510537723A CN105156116A CN 105156116 A CN105156116 A CN 105156116A CN 201510537723 A CN201510537723 A CN 201510537723A CN 105156116 A CN105156116 A CN 105156116A
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Abstract
The invention discloses a coal mine stoping roadway designing and constructing method. The method includes: step 1, constructing a section of counter-slope stoping roadway in a false-inclined manner along a coal bed at a coal exposing point opening of a mining area cross hole of an air return way and a transportation way, and stopping tunneling when elevation of a stoping roadway is lowered to elevation of a designed leveling point; step 2, changing a construction direction of the stoping roadway, and stopping tunneling when the stoping roadway is constructed along the direction of the coal bed to an upper or lower port of a cutting hole; step 3, constructing the cutting hole to form a coal mining work face with an independent air return system; step 4, stopping stoping work of the coal mining work face when the coal mining work face is stoped to a connecting line of an air return way leveling point and a transportation way leveling point. The coal mining work face and a mining area cross hole roadway are staggered by a certain distance, so that the mining area cross hole roadway in a section is only influenced by mining move of stoping of the coal mining work face once, influence of secondary mining move when the coal mining work face is stoped in a next section is avoided, the problem that the mining area cross hole roadway is difficult to support and frequent to maintain is solved, and service life of the mining area cross hole is prolonged.
Description
Technical field
The invention belongs to coal mine roadway design and construction method, particularly relate to a kind of stope of coal mines tunnel design and construction method.
Background technology
Stope formed mining influence be repeatedly all the time cause district cross-cut roadway support difficulty, safeguard principal element frequently.District cross-cut tunnel is by repeatedly the affecting of mining induced stress, and country rock unstability, two of crushing helps the serious and ground drum phenomenon of convergent deformation to give prominence to, and has a strong impact on the using function in district cross-cut tunnel, causes the frequent maintenance in district cross-cut tunnel.The deformation instability in district cross-cut tunnel causes not only to the shaft production links such as transport, pedestrains safety and has a strong impact on, and in order to the safety production condition ensureing district cross-cut tunnel also need a large amount of human and material resources of input, financial resource carries out maintenance to tunnel.Existing technology avoids district cross-cut to be subject to secondary mining influence by improving stope drift active workings design, reduce the number of times of the mining influence that coal work causes in the face of district cross-cut tunnel, thus significantly reduce district cross-cut roadway maintenance number of times, solve district cross-cut roadway support difficulty, safeguard present situation frequently.
Summary of the invention
The technical problem to be solved in the present invention is: a kind of design and construction method providing stope of coal mines tunnel, reduces the mining influence repeatedly that actual mining causes in the face of district cross-cut tunnel, solves district cross-cut roadway support difficulty, safeguards the problems such as frequent.
Technical solution of the present invention is:
A kind of stope of coal mines tunnel design and construction method, it comprises the steps:
Step 1, return airway, transportation roadway district cross-cut see coal point opening along coal seam pseudo-inclination construction one section of negative slope stope drift active workings, when the absolute altitude of stope drift active workings drop to design fall flat spot absolute altitude time stop driving.That is, in the negative slope section AB section of seeing pseudo-return aircourse that tilts to construct along coal seam, coal point A place of return airway crossdrift, stop tunneling when the absolute altitude of return aircourse drops to the absolute altitude designing flat spot B; Meanwhile in the negative slope section DE section of seeing coal point D place pseudo-haulage drift that tilts to construct along coal seam of transportation roadway crossdrift, stop tunneling when the absolute altitude of haulage drift drops to the absolute altitude designing flat spot E;
Step 2, change stope drift active workings construction orientation along bearing construction stope drift active workings to design cut eye upper (lower) mouth time stop driving.That is, change the BC section of construction orientation along bearing construction return aircourse of return aircourse, when return aircourse construction to design cut eye C place suitable for reading time stop tunneling; The construction orientation simultaneously changing return aircourse along the EF section of bearing construction haulage drift, when haulage drift construction to design cut now mouth F place time stop tunneling;
Step 3, eye is cut in construction, forms the coal-face with independent air return system;
Step 4, coal-face back production to return aircourse fall flat spot and haulage drift fall the link position of flat spot time stop the actual mining of coal-face.That is, coal-face back production to return aircourse fall flat spot B and haulage drift fall the link position of flat spot E time stop the actual mining of coal-face.
Especially, in step 1, stope drift active workings are higher than stope drift active workings at the absolute altitude of the opening point of crossdrift and fall the absolute altitude 3 ~ 5m of flat spot, that is, see the absolute altitude 3 ~ 5m of the absolute altitude at coal point A, D place higher than flat spot B, E place that falls in stope drift active workings; The inclination angle scope that return airway, transportation roadway bear slope section is-11 ° ~-27 °, and namely the inclination angle scope of the AB section of return aircourse and the DE section of haulage drift is-11 ° ~-27 °.
Especially, in step 2, the orientation in return airway, transportation roadway gallery section tunnel wants consistent, that is, the BC section of return aircourse requires consistent with the azimuth of the EF section of haulage drift.
In step 4, return aircourse the fall link position of flat spot E of flat spot B and haulage drift that falls is the position of terminal mining line of coal-face, that is, stope stop adopt line and exceed return aircourse the fall link position of flat spot E of flat spot B and haulage drift that falls and be the position of terminal mining line of coal-face.
The inventive method design and construction are simple, mining influence is caused in the district cross-cut tunnel in coal-face back production Zhi Duiyun in latter stage lane, because the district cross-cut of return airway and return airway stagger certain distance, avoid the secondary mining influence of coal-face, effectively can reduce the number of times of mining influence repeatedly that coal work causes in the face of district cross-cut, solve district cross-cut roadway support difficulty, safeguard the problems such as frequent.
Accompanying drawing explanation
Fig. 1 is plan view of the present invention;
Fig. 2 is I-I generalized section of Fig. 1;
Fig. 3 is II-II generalized section of Fig. 1;
Fig. 4 is III-III generalized section of Fig. 1.
Detailed description of the invention
As shown in Figure 1 to 4, a kind of stope of coal mines tunnel design and construction method, comprises the steps:
Step 1, in the negative slope section AB section of seeing pseudo-return aircourse 4 that tilts to construct along coal seam 1, coal point A place of return airway crossdrift 2, stops tunneling when the absolute altitude of return aircourse 4 drops to the absolute altitude designing flat spot B; Meanwhile in the negative slope section DE section of seeing coal point D place pseudo-haulage drift 5 that tilts to construct along coal seam 1 of transportation roadway crossdrift 3, stop tunneling when the absolute altitude of haulage drift 5 drops to the absolute altitude designing flat spot E;
Step 2, changes the construction orientation of return aircourse 4 and move towards along coal seam 1 to construct the BC section of return aircourse 4, when return aircourse 4 construct to design cut eye 6 C place suitable for reading time stopping tunnel; Change the construction orientation of haulage drift 5 move towards along coal seam 1 to construct the EF section of haulage drift 5 simultaneously, when haulage drift 5 construct to design cut eye 6 end opening F place time stopping tunnel;
Step 3, eye 6 is cut in construction, forms the coal-face with independent air return system;
Step 4, coal-face back production to return aircourse fall flat spot B and haulage drift fall the link position of flat spot E time stop the actual mining of coal-face.
See that the absolute altitude at coal point A place is higher than in return aircourse 4 height at least one tunnel of absolute altitude at the flat spot B place that falls described in step 1, be generally 3 ~ 5m; See that the absolute altitude at coal point D place is higher than in haulage drift 5 height at least one tunnel of absolute altitude at the flat spot E place that falls, be generally 3 ~ 5m.
The BC section of the return aircourse 4 described in step 2 requires consistent with the azimuth of the EF section of haulage drift 5.
Adopt a kind of design and construction method that the invention provides stope of coal mines tunnel, by certain distance that coal-face and district cross-cut tunnel are staggered, the district cross-cut tunnel of a section is made only to be subject to the mining influence of a coal-face back production, cause secondary mining influence when avoiding next section coal-face back production, solve district cross-cut roadway support difficulty, safeguard the problems such as frequent.
Claims (5)
1. a stope of coal mines tunnel design and construction method, it comprises the steps:
Step 1, to tilt along coal seam (1) puppet the negative slope section AB section of construction return aircourse (4) at the coal point A place of seeing of return airway crossdrift (2), when the absolute altitude of return aircourse (4) drop to design fall the absolute altitude of flat spot B time stop driving; Meanwhile to tilt along coal seam (1) puppet the negative slope section DE section of construction haulage drift (5) at the coal point D place of seeing of transportation roadway crossdrift (3), when the absolute altitude of haulage drift (5) drop to design fall the absolute altitude of flat spot E time stop driving;
Step 2, move towards to construct along coal seam (1) the BC section of return aircourse (4) in the construction orientation changing return aircourse (4), when return aircourse (4) construction to design cut eye (6) C place suitable for reading time stopping tunnel; Move towards to construct along coal seam (1) the EF section of haulage drift (5) in the construction orientation simultaneously changing return aircourse (5), when haulage drift (5) construction to design cut eye (6) end opening F place time stop tunneling;
Step 3, eye (6) is cut in construction, forms the coal-face with independent air return system;
Step 4, coal-face back production to return aircourse fall flat spot B and haulage drift fall the link position of flat spot E time stop the actual mining of coal-face.
2. a kind of stope of coal mines tunnel according to claim 1 design and construction method, is characterized in that: see the absolute altitude 3 ~ 5m of the absolute altitude at coal point A, D place higher than flat spot B, E place that falls in stope drift active workings (4), (5).
3. a kind of stope of coal mines tunnel according to claim 1 design and construction method, is characterized in that: the inclination angle scope of the AB section of return aircourse (4) and the DE section of haulage drift (5) is-11 ° ~-27 °.
4. a kind of stope of coal mines tunnel according to claim 1 design and construction method, is characterized in that: the BC section of return aircourse (4) requires consistent with the azimuth of the EF section of haulage drift (5).
5. a kind of stope of coal mines tunnel according to claim 1 design and construction method, is characterized in that: the return aircourse (4) that described step 4 requires the fall link position of flat spot E of flat spot B and haulage drift (5) that falls is the position of terminal mining line of coal-face.
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| CN201510537723.XA CN105156116B (en) | 2015-08-28 | 2015-08-28 | A kind of stope of coal mines tunnel design and construction method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106089236A (en) * | 2016-07-28 | 2016-11-09 | 北京昊华能源股份有限公司 | A kind of district cross-cut coal seam notch overall structure and driving method |
| CN107489422A (en) * | 2017-08-28 | 2017-12-19 | 龙口矿业集团有限公司 | A kind of technology of different operating face connection roadway stope of coal mines |
| CN110617068A (en) * | 2019-09-23 | 2019-12-27 | 六盘水师范学院 | Design and construction method for coal mine stoping roadway |
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| CN106089236A (en) * | 2016-07-28 | 2016-11-09 | 北京昊华能源股份有限公司 | A kind of district cross-cut coal seam notch overall structure and driving method |
| CN106089236B (en) * | 2016-07-28 | 2018-03-02 | 北京昊华能源股份有限公司 | A kind of district cross-cut coal seam notch overall structure and driving method |
| CN107489422A (en) * | 2017-08-28 | 2017-12-19 | 龙口矿业集团有限公司 | A kind of technology of different operating face connection roadway stope of coal mines |
| CN107489422B (en) * | 2017-08-28 | 2021-01-05 | 龙口矿业集团有限公司 | Coal mine stoping technology for different working face connecting roadways |
| CN110617068A (en) * | 2019-09-23 | 2019-12-27 | 六盘水师范学院 | Design and construction method for coal mine stoping roadway |
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| CN105156116B (en) | 2017-09-12 |
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