CN1734056A - Forced river crossing method for fully mechanized coal mining face - Google Patents
Forced river crossing method for fully mechanized coal mining face Download PDFInfo
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- CN1734056A CN1734056A CN 200410070480 CN200410070480A CN1734056A CN 1734056 A CN1734056 A CN 1734056A CN 200410070480 CN200410070480 CN 200410070480 CN 200410070480 A CN200410070480 A CN 200410070480A CN 1734056 A CN1734056 A CN 1734056A
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Abstract
This invention relates to river passing method of the coal-face, which includes: building dash dam at the up stream of the river channel first, and mounting the water guiding pipe to lead the glide from the up stream to the down steam; making the artificial river-bed on the river channel working face and laying the air duct cloth; piling the loess in the river channel, using the loess to fill the producing cranny and sealing it; digging several pump well with water pump in the river channel; arranging several venting hole under the well, pouring slurry and fixing sand after back mining; arranging the two dimension earthquake line in the working zone;
Description
Technical field
The present invention relates to the method that a kind of fully mechanized coal mining face crosses the river by force.
Background technology
In the process of coal mining, sometimes fully-mechanized mining working need pass through on the stratum below the stream, and need be from the underground process in stream of long-term property flowing water, in this case, when work plane descends process or back production to this section at it, as not taking suitable safeguard procedures, occur the phenomenon that roof caving unconsolidated formation diving and surface water will pour in the down-hole easily, thereby have the routed husky danger of the water of bursting.
Usually, fully-mechanized mining working is crossed the stream two cover technical schemes, and the one, jump and adopt removal of home, the 2nd, cross exploitation by force.Above-mentioned two technical schemes comparatively speaking, removal of home is adopted in the jumping of the fully-mechanized mining working of the first cover technical scheme, the engineering anxiety that continues influence the output and the rate of extraction, and engineering cost is higher.Therefore, often use the second cover technical scheme, the strong mistake exploited.The strong maximum problem of exploitation of crossing is that the ditch basement rock is thin, drift-sand is thick and water content is big crossing, and crosses the ditch exploitation work plane water of bursting that happens occasionally and bursts under the husky situation, can cause the danger of big security incident.
Therefore, be necessary to design the method that a kind of fully mechanized coal mining face crosses the river by force, to improve the safety factor of fully-mechanized mining working through the stream.
Summary of the invention
The method that the object of the present invention is to provide a kind of fully mechanized coal mining face to cross the river by force is to improve the safety factor of fully-mechanized mining working through the stream.
To achieve these goals, the present invention is design like this: the method that this fully mechanized coal mining face crosses the river by force may further comprise the steps:
(1) builds checkdam and aqueduct is installed in advance in the upstream, stream, flowing water is striden across work plane cause the downstream from the upstream;
(2) above the inner working face of stream, do artificial riverbed before the exploitation, and in the riverbed, lay air duct cloth with percolation-proof;
(3) stack loess in advance in the stream above work plane, in the time of near work plane is pushed into bottom of trench, with the crack of loess-filling generation, and compacting is obturaged;
(4) in the stream, dig and establish several pumped wells, and in each well submersible pump is set and draws water;
(5) several spilled water holes are set under mine, and carry out among a small circle slip casting before the back production and fix the sand measure;
(6) in the workspace, arrange some two-dimensional seismic lines;
(7) before crossing ditch, the bad regional close plating net of the top board of haulage gate and air return way stream section is beaten long anchor pole and anchor cable adds strong supporting, and respectively join entrance to a lane and augment band cap point post;
(8) several unrestrained water holes are set under mine;
(9) respectively establish a sump at haulage gate and air return way stream section;
(10) in the time of in work plane enters the stream, guarantee to move frame immediately following coal-winning machine, and the immediate support top board;
(11) in advance at the following monomer of beating of each frame canopy of supporting haulage gate internal frame canopy section;
(12) on set cap, lay geotextiles, in case fluid stopping sand is burst into work plane.。
By adopting technique scheme, can improve the safety factor of fully-mechanized mining working through the stream.
Description of drawings
Below in conjunction with accompanying drawing, specifically describe the present invention, wherein:
Fig. 1 is the flow chart of the method that crosses the river by force of fully mechanized coal mining face of the present invention.
The specific embodiment
Fig. 1 is consulted in request, and the method that fully mechanized coal mining face of the present invention crosses the river by force mainly may further comprise the steps:
(1) builds checkdam and aqueduct is installed in advance in the upstream, stream, flowing water is striden across work plane cause the downstream from the upstream, pour in the down-hole thereby prevent to ooze under the surface water and exploit later along the crack, and for convenience's sake, can be with the aqueduct former waterway laying of ditch along the river;
(2) in order to prevent that heavy rain from forming mountain torrents and bursting into the down-hole, before exploitation, above the inner working face of stream, do artificial riverbed, this channel gradient is the stream nature flowing water gradient, in the riverbed, lay air duct cloth with percolation-proof, after work plane was adopted artificial stream, to the sinker area backfill reparation of subsiding, guarantee that the race bed accessory is equipped with flood carrying capacity;
(3) stack loess in advance in the stream above work plane, in the time of near work plane is pushed into bottom of trench, with the crack of loess-filling generation, and compacting is obturaged;
(4) for draining in advance, in the stream, dig and establish 13 pumped wells, and in each well submersible pump is set and draws water;
(5) in order in time water burst being discharged, to make a call to 30 spilled water holes, to have guaranteed that water burst branch multichannel sends in the down-hole; Drift sand is burst into the down-hole when preventing back production, carries out among a small circle slip casting and fix the sand measure before back production; In addition, several straight spilled water holes and several inspecting holes are set on the work plane face of land also need be set on the air return way face of land;
(6) in the workspace, arrange some two-dimensional seismic lines; During the ditch that drew water, to check, will in time supervise processing in case pinpoint the problems to draining situation, surface collapse situation;
(7) before crossing ditch, the bad regional close plating net of the top board of haulage gate and air return way stream section is beaten long anchor pole and anchor cable adds strong supporting, and respectively join entrance to a lane and augment band cap point post, roof fall accident takes place in advance to prevent to be subjected to mining influence;
(8) 5 unrestrained water holes are set under mine, play hydrophobic step-down; And 2 peep holes are set on ground, grasp unrestrained water effect to observe.
(9) respectively establish a sump at haulage gate and air return way stream section; At air return way several forced-ventilated holes are set then, drain in the stream, the face of land, thereby simplify drainage system, shorten drain line, guarantee water in time to discharge in order to the down-hole is entered air return way sump water.
(10) in the time of in work plane enters the stream, it is unsuitable too high to adopt the face mining height, guarantees to move frame simultaneously immediately following coal-winning machine, and the immediate support top board, guarantees setting load, reduces unsupported back span and empty top time, prevents to cut the top and leaks cash;
(11) in advance at the following monomer of beating of each frame canopy of supporting haulage gate internal frame canopy section; But also need to reduce, and beat double monomer at air return way in the haulage gate distance between the monomer of frame section not.
(12) during the Coal Face Passing Through ditch, strengthen service work, guarantee that support, coal machine, conveyor etc. are in serviceable condition, all support safety valves must be intact reliable, guarantees to reach design supporting resistance; When work plane pushed away thin basement rock, on set cap, lay geotextiles, in case fluid stopping sand is burst into work plane.
By using the above-mentioned fully-mechanized mining working method that crosses the river by force, can avoid jumping adopt engineering that removal of home brings continue anxiety, influence the output and the rate of extraction and engineering cost than problems such as height, nonproductive time can be reduced, improve the mine rate of extraction, reduce raw coal cost, faster production, thus realize the efficient centralized production of mine.
Claims (5)
1. method that fully mechanized coal mining face crosses the river by force is characterized in that: said method comprising the steps of:
(1) builds checkdam and aqueduct is installed in advance in the upstream, stream, flowing water is striden across work plane cause the downstream from the upstream;
(2) above the inner working face of stream, do artificial riverbed before the exploitation, and in the riverbed, lay air duct cloth with percolation-proof;
(3) stack loess in advance in the stream above work plane, in the time of near work plane is pushed into bottom of trench, with the crack of loess-filling generation, and compacting is obturaged;
(4) in the stream, dig and establish several pumped wells, and in each well submersible pump is set and draws water;
(5) several spilled water holes are set under mine, and carry out among a small circle slip casting before the back production and fix the sand measure;
(6) in the workspace, arrange some two-dimensional seismic lines;
(7) before crossing ditch, the bad regional close plating net of the top board of haulage gate and air return way stream section is beaten long anchor pole and anchor cable adds strong supporting, and respectively join entrance to a lane and augment band cap point post;
(8) several unrestrained water holes are set under mine;
(9) respectively establish a sump at haulage gate and air return way stream section;
(10) in the time of in work plane enters the stream, guarantee to move frame immediately following coal-winning machine, and the immediate support top board;
(11) in advance at the following monomer of beating of each frame canopy of supporting haulage gate internal frame canopy section;
(12) on set cap, lay geotextiles, in case fluid stopping sand is burst into work plane.
2. the method that fully mechanized coal mining face as claimed in claim 1 crosses the river by force is characterized in that: step (5) also is included in the air return way face of land several straight spilled water holes is set.
3. the method that fully mechanized coal mining face as claimed in claim 2 crosses the river by force is characterized in that: described step (8) further is included in ground several peep holes is set.
4. the method that fully mechanized coal mining face as claimed in claim 3 crosses the river by force is characterized in that: described step (9) further is included in air return way several forced-ventilated holes is set, and drains in the stream, the face of land in order to the down-hole is entered air return way sump water.
5. the method that fully mechanized coal mining face as claimed in claim 4 crosses the river by force is characterized in that: wherein step (11) further comprises minimizing in the haulage gate distance between the monomer of frame section not, and beats double monomer at air return way.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100704805A CN100540846C (en) | 2004-08-03 | 2004-08-03 | The method that fully mechanized coal mining face crosses the river by force |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100704805A CN100540846C (en) | 2004-08-03 | 2004-08-03 | The method that fully mechanized coal mining face crosses the river by force |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1734056A true CN1734056A (en) | 2006-02-15 |
| CN100540846C CN100540846C (en) | 2009-09-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2004100704805A Active CN100540846C (en) | 2004-08-03 | 2004-08-03 | The method that fully mechanized coal mining face crosses the river by force |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102061922A (en) * | 2010-10-26 | 2011-05-18 | 中国矿业大学 | Method for carrying out comprehensive mechanical coal mining and continuous propulsion mining on split and merged coal beds |
| CN102080568A (en) * | 2010-11-19 | 2011-06-01 | 河北联合大学 | Method for reducing water pressure of covering layer of mine transferred from opencast mine to underground mine |
| CN107227973A (en) * | 2017-08-03 | 2017-10-03 | 中煤科工集团西安研究院有限公司 | Thin-base-rock shallow coal-layer crosses ditch exploitation working face flood and waterlogging control method |
-
2004
- 2004-08-03 CN CNB2004100704805A patent/CN100540846C/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102061922A (en) * | 2010-10-26 | 2011-05-18 | 中国矿业大学 | Method for carrying out comprehensive mechanical coal mining and continuous propulsion mining on split and merged coal beds |
| CN102061922B (en) * | 2010-10-26 | 2012-10-24 | 中国矿业大学 | Method for carrying out comprehensive mechanical coal mining and continuous propulsion mining on split and merged coal beds |
| CN102080568A (en) * | 2010-11-19 | 2011-06-01 | 河北联合大学 | Method for reducing water pressure of covering layer of mine transferred from opencast mine to underground mine |
| CN102080568B (en) * | 2010-11-19 | 2012-10-31 | 河北联合大学 | Method for reducing water pressure of covering layer of mine transferred from opencast mine to underground mine |
| CN107227973A (en) * | 2017-08-03 | 2017-10-03 | 中煤科工集团西安研究院有限公司 | Thin-base-rock shallow coal-layer crosses ditch exploitation working face flood and waterlogging control method |
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| Publication number | Publication date |
|---|---|
| CN100540846C (en) | 2009-09-16 |
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