CN103161498B - Half-edge coal seam section coal pillar roadside packing method - Google Patents
Half-edge coal seam section coal pillar roadside packing method Download PDFInfo
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- CN103161498B CN103161498B CN201310091619.3A CN201310091619A CN103161498B CN 103161498 B CN103161498 B CN 103161498B CN 201310091619 A CN201310091619 A CN 201310091619A CN 103161498 B CN103161498 B CN 103161498B
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Abstract
A kind of half-edge coal seam section coal pillar roadside packing method, comprise comprehensive process transport casting resin, the advance of the face and move frame, paving filling bag and filling dividing plate, preset Grouting Pipe, grouting filling, the method is constructed coal column road-in packing in the filling space that section haulage way and some work face goaf form and is formed roadside support band, add the volume of section coal pillar, obturation and coal column are combined into Unified Global, effectively suppress and block goaf spoil to glide on inclined-plane; Improve the support strength in tunnel, solve the problem of roadway support difficulty.Not only reduce the percussion that upper curtate goaf spoil glides to section coal pillar, decrease the distortion of lower curtate tailgate country rock, keep the stability in tunnel.Prevent the spontaneous combustion leaked out with coal simultaneously, avoid pernicious gas in goaf and enter workspace.Its method is simple, easily constructs, time saving and energy saving, effective.
Description
Technical field
A kind of half-edge coal seam section coal pillar roadside packing method that the present invention relates to, is particularly useful for the filling that the side, section coal pillar lane of long-armed coal-mining method is moved towards in high-dipping.
Background technology
Steeply-inclined seam mining is an important topic of coal mining technique research always, and for a long time, a large amount of experts and scholars have made much research to this, and achieve some gratifying achievements.In actual progress of coal mining, due to the particularity of steeply-inclined seam mining geological conditions, during exploitation half-edge coal seam, in goaf, caved gangue is due to the effect of deadweight, in most of the cases all can not stay original place, but the landing downwards immediately along seam inclination direction.Steeply-inclined seam mining deformation and failure of roadways characteristic mechanisms is analyzed in half-edge coal seam, under interacting in run of mine coal seam stress field, the deformation failure of heading has the mutual sliding deformation feature that asymmetry presents " top board downslide base plate is heaved ".Half-edge coal seam tunnel faces the problems such as goaf spoil glides, roadway support difficulty, back distortion is large, goaf pernicious gas corrodes, exploitation tunnel utilization rate is low along empty staying when establishing tunnel.
Summary of the invention
Technical problem: the object of the invention is to overcome Problems existing in prior art, provides a kind of method of simple, high-dipping section coal pillar roadside packing supporting that effect is better, safe and reliable.
Technical scheme: half-edge coal seam section coal pillar roadside packing method of the present invention, comprises the steps:
A. No. 42.5 Portland cements are pressed on ground: sand: the quality proportioning processing filler of rubble=1:2:2, loads filler in filling bag, transport to section haulage way for subsequent use;
B. working surface production per diem enters 12 cycle operations, and every cyclic advance is 0.8m, and namely the every daily footage 9.6m of work plane estimates, determines the initial position distance work plane 300m that half-edge coal seam filling machine and material are stacked;
C. when after coal mining machine cut cutter coal on the complete same day first, pass the A in fully mechanized coal face from bottom to top successively, C, D ... frame hydraulic support, B frame hydraulic support original position is motionless, filling baffle plate one is laid in the space that the A frame hydraulic support of B frame hydraulic support and displacement is formed, then in filling baffle plate one lower side space, lay the filling bag that solid filling material is housed, afterwards, filling baffle plate two is laid at coal-face lower end A frame hydraulic support shield beam lower side, after laying filling baffle plate two completes, by B frame hydraulic support to reach frame, concordant with other hydraulic support,
D. when after coal mining machine cut next cutter coal complete, repeat A, C, D of passing in step c in fully mechanized coal face ... frame hydraulic support, B frame hydraulic support original position is motionless, remove the filling baffle plate two laid in previous step, then according to laying filling plate washer one, filling bag, laying filling baffle plate two in step c in filling space, passing B frame hydraulic support;
E. according to the cycle-index of coal cutting every day, steps d is repeated, number of repetition=coal cutting cycle-index-1;
F. along with work plane is pushed ahead, when coal-face production maintenance class, being transported to by filling pipeline by the cement bonded sand mortar stirred with filling machine lays in the space of filling bag, make fixing attal in the cement bonded sand mortar that stirs and filling bag in conjunction with as a whole, be formed in coal and help the obturation of constructing side;
G. after entering next working day, along with the continuous propelling of coal-face, repeat step c, d, e, f, until full face mining completes, complete the packing job of whole upper curtate haulage way.
Beneficial effect: the present invention achieves the fender exploitation of half-edge coal seam by filling measure, improve the rate of extraction of working face, by carrying out grouting filling to side on half-edge coal seam section coal pillar, enhance the self-strength of coal column, obturation and coal column are combined into Unified Global, effectively suppress and stop that goaf spoil glides on inclined-plane; Road-in packing effectively prevents lower curtate return air level line roof deformation large, controls the distortion of lower curtate tailgate, promotes the support strength in tunnel, solves the problem of roadway support difficulty.By tunnel roadside packing, stay the reparation setting section tailgate to reduce, improve exploitation tunnel utilization rate.By closed upper portion goaf, not only reduce the percussion that upper curtate goaf spoil glides to section coal pillar, greatly strengthen section coal pillar enabling capabilities, and decrease the distortion of lower curtate tailgate country rock, keep the stability in tunnel.Prevent the spontaneous combustion leaked out with coal simultaneously, avoid pernicious gas in goaf and enter workspace.The method comprehensive method of investment is lower, and filler is drawn materials conveniently, and the exploitation roadway maintenance amount of reprocessing is little, and safety is good, and method is simple, easily constructs, time saving and energy saving, effective, has practicality widely.
Accompanying drawing explanation
Fig. 1 is tunnel arrangement diagram in the work progress of shaft bottom of the present invention;
Fig. 2 is the schematic cross-section after filling of the present invention.
In figure: 1-slip casting baffle plate one, 2-slip casting baffle plate two, 3-obturation, 4-anchor cable, 5-hydraulic support, 6-goaf, 7-filling pipeline, 8-top board, 9-base plate, 10-coal is helped, 11-upper curtate haulage way.
Detailed description of the invention
Below in conjunction with accompanying drawing, one embodiment of the present of invention are further described:
Half-edge coal seam section coal pillar roadside packing method of the present invention, concrete steps are as follows:
1. first press No. 42.5 Portland cements on ground: sand: the quality proportioning of rubble=1:2:2 processing filler, the filler mixed is loaded filling bag package encapsulation well after, transport with mine car and go into the well, until for subsequent use in section haulage way; Per diem enter 12 cycle operations during working surface production, every cyclic advance is 0.8m, and namely the every daily footage 9.6m of work plane estimates, filler needed for every day is: 9.6 × 10.71=103m
3, then 110m is pressed every day
3material prepares;
2. estimate that material stacking and filling facility are in first installation site according to the every daily footage of work plane, filling pump is unsuitable too far away apart from work plane, know the every daily footage 9.6m of work plane, apart from work plane 300m when determining that half-edge coal seam is installed for the first time according to step 1;
3. when after coal mining machine cut cutter coal on the complete same day first, the up cleaning float coal of coal-winning machine, then single rack passes A successively from bottom to top, C, D ... frame hydraulic support 5, the pushing distance of hydraulic support is 0.8m, B frame hydraulic support original position is motionless, filling baffle plate 1 is laid in the space that B frame hydraulic support 5 lower side and A frame hydraulic support 5 are formed, to keep out the impact of a small amount of spoil of goaf side, play the buffering effect of crushing, avoid section coal pillar filled wall to crush when not reaching predetermined strength body of wall damaged by pressure, then in the space of filling baffle plate 1 lower side, filling is carried out by filling bag, after filling bag filling, filling baffle plate 22 is laid at work plane lower end A frame hydraulic support 5 caving shield lower side, filling baffle plate 22 is adopted to be erected at tunnel, and tentatively keep off tightly with individual prop, after laying filling baffle plate 22 completes, by B frame hydraulic support 5 to reach frame, advance distance is 0.8m, concordant with other hydraulic support 5,
4. when after coal mining machine cut next cutter coal complete, according in step 3, pass A, C, the D in fully mechanized coal face ... frame hydraulic support 5, B frame hydraulic support 5 original position is motionless, remove the filling baffle plate 22 laid in previous step, then according to laying filling plate washer 1, filling bag, laying filling baffle plate 22 in step 3 in filling space, passing B frame hydraulic support 5;
5. according to coal cutting every day cycle-index, repeat above-mentioned steps 4, filling space is constructed in the construction that circulates successively in circulating the same day 12, and repeating step 4 time number is 11 times;
6. along with work plane is constantly pushed ahead, packing job is carried out when coal-face production maintenance class, filler is added in filling pump, add water, spice, for filling is prepared, then filling dividing plate filling mouth is pierced in filling pipeline 7 outlet and carry out filling to this space, utilize filling machine that the cement bonded sand slurry stirred is transported to step 3 by filling pipeline 7, 4, the filling space of filling bag is laid in 5, make filler in the cement bonded sand slurry that stirs and filling bag in conjunction with as a whole, be formed in the obturation 3 that in coal side 10, side is constructed, when every filling once closes to an end, filling pipe road direction extends outward, with baton round, the material in filling pump line is pushed away totally, prevent filler frozen plug in pipe, and with clear water, total length pipeline is rinsed, pipe flushing adopts water extraction way,
7., after entering next working day, along with the continuous propelling of coal-face, repeat step 3,4,5,6, until full face mining completes, complete the packing job of whole upper curtate haulage way 11.
Claims (1)
1. a half-edge coal seam section coal pillar roadside packing method, is characterized in that, comprise the steps:
A. No. 42.5 Portland cements are pressed on ground: sand: the quality proportioning processing filler of rubble=1:2:2, loads filler in filling bag, transport to section haulage way (11) for subsequent use;
B. working surface production per diem enters 12 cycle operations, and every cyclic advance is 0.8m, and namely the every daily footage 9.6m of work plane estimates, determines the initial position distance work plane 300m that half-edge coal seam filling machine and material are stacked;
C. when after coal mining machine cut cutter coal on the complete same day first, pass the A in fully mechanized coal face from bottom to top successively, C, D ... frame hydraulic support, the pushing distance of hydraulic support is 0.8m, B frame hydraulic support original position is motionless, filling baffle plate one (1) is laid in the space that the A frame hydraulic support of B frame hydraulic support and displacement is formed, to keep out the impact of a small amount of spoil of goaf side, play the buffering effect of crushing, avoid section coal pillar filled wall to crush when not reaching predetermined strength body of wall damaged by pressure, then in filling baffle plate one (1) lower side space, lay the filling bag that solid filling material is housed, afterwards, filling baffle plate two (2) is laid at coal-face lower end A frame hydraulic support shield beam lower side, after laying filling baffle plate two (2) completes, by B frame hydraulic support to reach frame, advance distance is 0.8m, concordant with other hydraulic support,
D. when after coal mining machine cut next cutter coal complete, repeat A, C, D of passing in step c in fully mechanized coal face ... frame hydraulic support, B frame hydraulic support original position is motionless, remove the filling baffle plate two (2) laid in previous step, then according to laying filling plate washer one (1), filling bag, laying filling baffle plate two (2) in step c in filling space, passing B frame hydraulic support;
E. according to the cycle-index of coal cutting every day, steps d is repeated, number of repetition=coal cutting cycle-index-1;
F. along with work plane is pushed ahead, packing job is carried out when coal-face production maintenance class, being transported to by filling pipeline (7) by the cement bonded sand mortar stirred with filling machine lays in the space of filling bag, make fixing attal in the cement bonded sand mortar that stirs and filling bag in conjunction with as a whole, be formed in the obturation (3) that the upper side of coal side (10) is constructed; When every filling once closes to an end, filling pipe road direction extends outward, is pushed away totally by the material in filling pump line with baton round, and prevent filler frozen plug in pipe, and rinsed by total length pipeline with clear water, pipe flushing adopts water extraction way;
G. after entering next working day, along with the continuous propelling of coal-face, repeat step c, d, e, f, until full face mining completes, complete the packing job of whole upper curtate haulage way (11).
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| CN201310091619.3A CN103161498B (en) | 2013-03-20 | 2013-03-20 | Half-edge coal seam section coal pillar roadside packing method |
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| CN201310091619.3A CN103161498B (en) | 2013-03-20 | 2013-03-20 | Half-edge coal seam section coal pillar roadside packing method |
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| CN103161498B true CN103161498B (en) | 2016-01-06 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103485819B (en) * | 2013-09-23 | 2015-11-04 | 中国矿业大学 | Fall from power rank pocket type placement method in a kind of large-inclination-angle coal bed goaf |
| CN105736019A (en) * | 2014-12-26 | 2016-07-06 | 华北冶建工程建设有限公司 | Measure chamber treatment technology for drainage tunnel |
| CN109736880B (en) * | 2019-01-22 | 2021-01-08 | 长安大学 | Filling body for coal mining and preparation method and process thereof |
| CN110681629B (en) * | 2019-10-14 | 2020-09-15 | 重庆聿远机器人科技有限公司 | Automatic flushing system for fully-mechanized mining hydraulic support and working method thereof |
| CN111485913B (en) * | 2020-03-31 | 2022-04-26 | 扬州中矿建筑新材料科技有限公司 | Gob-side entry retaining system and method for roadway-side goaf gangue cementing wall forming |
| CN114017104A (en) * | 2021-10-26 | 2022-02-08 | 北京中煤矿山工程有限公司 | Method for treating goaf of multilayer inclined coal seam |
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| SU898100A1 (en) * | 1980-02-11 | 1982-01-15 | За витель | Power-operated filling-in partition |
| SU1451286A1 (en) * | 1986-11-05 | 1989-01-15 | Донецкий Научно-Исследовательский Угольный Институт | Method of setting enclosure for retaining the filling on steep seams |
| CN100562646C (en) * | 2007-11-30 | 2009-11-25 | 西安科技大学 | Large-inclination-angle coal bed mining top board multiple segment control exploration method for deeply inclined |
| CN101372891B (en) * | 2008-06-10 | 2010-08-11 | 沈阳市华祥矿山机械厂 | Strip filling integral backstopping coal mining method |
| CN201687491U (en) * | 2010-06-01 | 2010-12-29 | 郑州四维机电设备制造有限公司 | Tail end paste filling structure of integrated hydraulic support supported and filled by paste |
| CN102493838B (en) * | 2011-12-17 | 2014-01-15 | 湖南科技大学 | Method for fully mechanized continuously-filling coal mining of steeply pitching coal seam |
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