CN106121717A - A kind of driving face in coal mine caving place injecting treatment method - Google Patents
A kind of driving face in coal mine caving place injecting treatment method Download PDFInfo
- Publication number
- CN106121717A CN106121717A CN201610515551.0A CN201610515551A CN106121717A CN 106121717 A CN106121717 A CN 106121717A CN 201610515551 A CN201610515551 A CN 201610515551A CN 106121717 A CN106121717 A CN 106121717A
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- CN
- China
- Prior art keywords
- driving face
- roof fall
- coal mine
- treatment method
- injecting treatment
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 35
- 239000003245 coal Substances 0.000 title claims abstract description 13
- 238000007569 slipcasting Methods 0.000 claims abstract description 18
- 239000000463 material Substances 0.000 claims abstract description 17
- 239000004568 cement Substances 0.000 claims description 10
- 238000002347 injection Methods 0.000 claims description 6
- 239000007924 injection Substances 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 3
- 238000004080 punching Methods 0.000 claims 1
- 238000004513 sizing Methods 0.000 claims 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract description 8
- 238000010276 construction Methods 0.000 abstract description 6
- 238000009825 accumulation Methods 0.000 abstract description 4
- 238000007596 consolidation process Methods 0.000 abstract description 2
- 238000009792 diffusion process Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 abstract description 2
- 238000005553 drilling Methods 0.000 description 7
- 229910000831 Steel Inorganic materials 0.000 description 5
- 230000002159 abnormal effect Effects 0.000 description 5
- 239000002002 slurry Substances 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 230000008014 freezing Effects 0.000 description 3
- 238000007710 freezing Methods 0.000 description 3
- 241001074085 Scophthalmus aquosus Species 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 206010060904 Freezing phenomenon Diseases 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 239000011378 shotcrete Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F15/00—Methods or devices for placing filling-up materials in underground workings
- E21F15/02—Supporting means, e.g. shuttering, for filling-up materials
- E21F15/04—Stowing mats; Goaf wire netting; Partition walls
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
Driving face in coal mine often causes roof fall accident because of reasons such as geological conditions change, not in place, the mismanagements of supporting measure.For large-scale roof fall accident, tend not to well be processed.The way being usually taken is to clean out operation path in roof fall district, and personnel are deep into top, roof fall region and install anchor pole, anchor cable crib building structure top.This way personnel's amount of labour is big, difficulty of construction big, poor stability, clear cash amount are big and there is the hidden danger of roof fall district methane accumulation.Therefore the present invention proposes a kind of driving face caving place injecting treatment method.The method includes constructing wall, subregion slip casting, three technological processes of the clear cash of frame canopy.The method is not required to workman and gos deep into the operation of roof fall district, and clear cash amount is few and eliminates inbreak cavity, eliminates the risk of methane accumulation.Good to roof fall district spoil consolidation effect, serosity diffusion is more uniform.Consumption of materials is few, low cost.
Description
Technical field
The present invention relates to caving place Treatment process field, colliery, particularly relate to a kind of driving face in coal mine caving place note
Slurry processing method, the improvement to tunnel caving place also has certain suitability in addition.
Background technology
Driving face in coal mine often causes roof fall because of reasons such as geological conditions change, not in place, the mismanagements of supporting measure
Accident；Emit heights of roofs tens centimetres at least, the most tens of rice；For the roof fall accident of little scope, gunite concrete can be passed through, add
The measures such as strong supporting process, but for large-scale roof fall accident, tend not to obtain appropriate process；Be usually taken does
Method is to clean out operation path in roof fall district (5), and personnel are deep into top, roof fall region and install anchor pole, anchor cable crib building structure
Top；This way personnel's amount of labour is big, difficulty of construction big, poor stability, clear cash amount are big and there is the hidden of roof fall district methane accumulation
Suffer from；Application number: 201420201887.6 propose a kind of roof fall district filling system, but this filling system lays vacation top complex process
And it is big to there is clear cash amount, the problem that charging quantity is big；Present inventors have proposed at a kind of driving face caving place slip casting based on this
Reason method.
Summary of the invention
The present invention is based on driving face in coal mine roof fall accident can not get in prior art safety, quickly, appropriately process
Problem, it is proposed that a kind of driving face caving place injecting treatment method.
The technical scheme is that and be achieved in that:
A kind of driving face caving place injecting treatment method, its step includes:
(1) wall is constructed
A. the cash that falls at roof fall district (5) edge is cleared up；
B. being close to roof fall area edge and construct the width wall (1) more than 20cm, wall need to cover whole drift section, is used for preventing
Only spillage in follow-up grouting with plunger；
(2) subregion slip casting
A. in roof fall district (5) bottom construction bottom hole (2), it is possible that bit freezing phenomenon in boring drilling process, can adopt
The way taking slip casting and creep into combination, when i.e. there are the abnormal phenomenas such as bit freezing, should be moved back brill immediately and be noted by perferated thimble
Slurry, injecting paste material selects the rapid hardening early injection pulp material (referenced patent CN201310566695.5) of low water-cement ratio, quickly to add
Gu the loose spoil in fracture area, spudded in after half an hour trepanning, when again occurring creeping into abnormal, repeats slip casting, trepanning technique, until hole
As deep as projected depth；
B., after drilling construction, insert Grouting Pipe and carry out sealing of hole；
C. the novel rapid hardening early injection pulp material (referenced patent of low water-cement ratio (0.8 ~ 1.0:1) is injected
CN201310566695.5), when pressure rises to about 1MPa, slip casting is stopped；
D. repeat a～step c, be sequentially completed middle part boring (3), the drilling of top boring (4), slip casting operation, on middle part and top
In the slip casting operation of portion's boring, select the injecting paste material of relatively high water-cement ratio (2.5 ~ 3.0:1)；
(3) the clear cash of frame canopy
Installing I-steel (7) canopy in roof fall district (5) wall (1) outside, canopy is away from no more than 0.5m, and ceiling need to be carried on the back and set wire gauze (6),
Coordinating hydraulic prop gib, personnel progressively remove the caved gangue in drift section under I-steel (7) canopy supporting,
Until passing through caving place.
The invention has the beneficial effects as follows:
1. technique is simple, safety good, and workman is not required to go deep into the operation of roof fall district；
2. clear cash amount reduces, it is only necessary to clear up the useless cash of lane space, and cash is given up as packing material filling in Collapsed zone top
Collapsed zone；
3. eliminate inbreak cavity, eliminate the risk of methane accumulation；
4. pair roof fall district spoil consolidation effect is good, and serosity diffusion is more uniform；
5. consumption of materials is few, low cost.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
In having technology to describe, the required accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to
Other accompanying drawing is obtained according to these accompanying drawings.
Fig. 1 caving place wall and borehole pattern；
Fig. 2 caving place frame canopy clear cash figure；
Wherein, 1. wall, 2. bottom hole, 3. in the middle part of hole, 4. top boring, 5. roof fall district, 6. wire gauze, 7. I-shaped
Steel.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Describe, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments wholely.Based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under not paying creative work premise
Embodiment, broadly falls into the scope of protection of the invention.
A kind of driving face in coal mine caving place injecting treatment method,
1. construct wall technique to operate as follows and carry out:
A. the cash that falls at roof fall district (5) edge is cleared up；
B. being close to roof fall area edge and construct the width wall (1) more than 20cm, wall need to cover whole drift section, is used for preventing
Only spillage in follow-up grouting with plunger；
2. subregion grouting process operates as follows and carries out:
A. in roof fall district (5) bottom construction bottom hole (2), it is possible that bit freezing etc. are abnormal existing in boring drilling process
As, way slip casting can taked with creep into combination, when i.e. the abnormal phenomenas such as bit freezing occurring, brill should be moved back immediately and pass through perferated thimble
Carrying out slip casting, injecting paste material selects the rapid hardening early injection pulp material (referenced patent CN201310566695.5) of low water-cement ratio, with
The loose spoil in rapid reinforcement fracture area, spudded in after half an hour trepanning, when again occurring creeping into abnormal, repeats slip casting, trepanning technique,
Until hole depth reaches projected depth；
B., after drilling construction, insert Grouting Pipe and carry out sealing of hole；
C. the novel rapid hardening early injection pulp material (referenced patent of low water-cement ratio (0.8 ~ 1.0:1) is injected
CN201310566695.5), when pressure rises to about 1MPa, slip casting is stopped；
D. repeat a～step c, be sequentially completed middle part boring (3), the drilling of top boring (4), slip casting operation, on middle part and top
In the slip casting operation of portion's boring, select the injecting paste material of relatively high water-cement ratio (2.5 ~ 3.0:1)；
3. frame canopy clear cash technique operates as follows and carries out:
Installing I-steel (7) canopy in roof fall district (5) wall (1) outside, canopy is away from no more than 0.5m, and ceiling need to be carried on the back and set wire gauze (6),
Coordinating hydraulic prop gib, personnel progressively remove the caved gangue in drift section under I-steel (7) canopy supporting,
Until passing through caving place.
Above-mentioned purpose to be realized, after inlet well perforate, should insert sleeve；Grouting Pipe interface laterally should be welded with at sleeve,
Flange should be welded with at sleeve ends and be furnished with blind flange.
Above-mentioned purpose to be realized, subregion inlet well is that sector is arranged in each district, and drilling hole amount depends on roof fall district scope.
Above-mentioned purpose to be realized, Grouting Pipe stretches into the part in roof fall district and need to have and penetrate slurry hole.
Above-mentioned purpose to be realized, need to use a kind of novel rapid hardening early injection pulp material, the novel slurry filling selected in this method
Material divides two kinds of components of A, B to constitute, and this material low water-cement ratio is 0.8:1～1.0:1, starches under this ratio of mud after two component mixing
Liquid can realize 3～5min initial sets, 5～15min final set；This material high water-cement ratio is 3.0:1～4.0:1, under this ratio of mud two
Component mixing rear slurry can realize 10～30min initial sets, 30～60min final set.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all essences in the present invention
Within god and principle, any modification, equivalent substitution and improvement etc. made, should be included within the scope of the present invention.
Claims (6)
1. a driving face in coal mine caving place injecting treatment method, it is characterised in that its step includes:
Construct wall, subregion slip casting, three technological processes of the clear cash of frame canopy.
2. a kind of driving face in coal mine caving place injecting treatment method as claimed in claim 1, it is characterised in that construct stifled
In wall (1) technique, body of wall must cover whole drift section, and thickness of wall body is not less than 20cm.
3. a kind of driving face in coal mine caving place injecting treatment method as claimed in claim 1, it is characterised in that subregion is noted
The mode that sizing process must combine according to punching, slip casting, is sequentially completed bottom hole (2), middle part boring (3), top boring (4)
Drill, slip casting operation.
4. a kind of driving face in coal mine caving place injecting treatment method as claimed in claim 1, it is characterised in that frame canopy is clear
In cash technique, canopy, away from no more than 0.5m, ceiling needs the back of the body have wire gauze (6).
5. a kind of driving face in coal mine caving place injecting treatment method as claimed in claim 3, it is characterised in that drillman
In skill, Grouting Pipe must be inserted after pore-forming, and carry out sealing of hole.
6. a kind of driving face in coal mine caving place injecting treatment method as claimed in claim 3, it is characterised in that Cementer
In skill, bottom hole (2) slip casting need to use the novel rapid hardening early injection pulp material (referenced patent of low water-cement ratio (0.8 ~ 1.0:1)
CN201310566695.5), middle part and top bored grouting can use the injecting paste material of relatively high water-cement ratio (2.5 ~ 3.0:1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610515551.0A CN106121717A (en) | 2016-07-04 | 2016-07-04 | A kind of driving face in coal mine caving place injecting treatment method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610515551.0A CN106121717A (en) | 2016-07-04 | 2016-07-04 | A kind of driving face in coal mine caving place injecting treatment method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106121717A true CN106121717A (en) | 2016-11-16 |
Family
ID=57469140
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610515551.0A Pending CN106121717A (en) | 2016-07-04 | 2016-07-04 | A kind of driving face in coal mine caving place injecting treatment method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106121717A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107503771A (en) * | 2017-10-16 | 2017-12-22 | 山西阳城阳泰集团西冯街煤业有限公司 | A kind of colliery crushes coal petrography consolidation method |
| CN109446659A (en) * | 2018-10-31 | 2019-03-08 | 华北科技学院 | A kind of method that integrated forecasting heading emits heights of roofs and hidden danger classification |
| CN110067573A (en) * | 2019-04-26 | 2019-07-30 | 西和县中宝矿业有限公司 | A kind of quick improvement and the construction method for passing through the crushed zone that caved in |
| CN110206569A (en) * | 2019-05-05 | 2019-09-06 | 西安科技大学 | A method of administering large-mining-height working surface roof fall wall caving |
| CN111594231A (en) * | 2020-06-03 | 2020-08-28 | 贵州盘江精煤股份有限公司 | Grouting reinforcement method for deep surrounding rock broken water erosion roadway |
| CN114263483A (en) * | 2021-12-27 | 2022-04-01 | 国家能源集团宁夏煤业有限责任公司 | Processing method for caving space in fully mechanized coal mining face propelling process |
-
2016
- 2016-07-04 CN CN201610515551.0A patent/CN106121717A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107503771A (en) * | 2017-10-16 | 2017-12-22 | 山西阳城阳泰集团西冯街煤业有限公司 | A kind of colliery crushes coal petrography consolidation method |
| CN109446659A (en) * | 2018-10-31 | 2019-03-08 | 华北科技学院 | A kind of method that integrated forecasting heading emits heights of roofs and hidden danger classification |
| CN110067573A (en) * | 2019-04-26 | 2019-07-30 | 西和县中宝矿业有限公司 | A kind of quick improvement and the construction method for passing through the crushed zone that caved in |
| CN110206569A (en) * | 2019-05-05 | 2019-09-06 | 西安科技大学 | A method of administering large-mining-height working surface roof fall wall caving |
| CN111594231A (en) * | 2020-06-03 | 2020-08-28 | 贵州盘江精煤股份有限公司 | Grouting reinforcement method for deep surrounding rock broken water erosion roadway |
| CN114263483A (en) * | 2021-12-27 | 2022-04-01 | 国家能源集团宁夏煤业有限责任公司 | Processing method for caving space in fully mechanized coal mining face propelling process |
| CN114263483B (en) * | 2021-12-27 | 2024-01-30 | 国家能源集团宁夏煤业有限责任公司 | Method for processing caving space in fully mechanized coal mining face advancing process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20161116 |