CN109098712A - A kind of construction method of gob side entry retaining - Google Patents
A kind of construction method of gob side entry retaining Download PDFInfo
- Publication number
- CN109098712A CN109098712A CN201810991264.6A CN201810991264A CN109098712A CN 109098712 A CN109098712 A CN 109098712A CN 201810991264 A CN201810991264 A CN 201810991264A CN 109098712 A CN109098712 A CN 109098712A
- Authority
- CN
- China
- Prior art keywords
- spoil
- entry retaining
- side entry
- artificial wall
- tunnel
- 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
- 238000010276 construction Methods 0.000 title claims abstract description 28
- 230000004888 barrier function Effects 0.000 claims abstract description 29
- 239000003245 coal Substances 0.000 claims abstract description 16
- 239000000463 material Substances 0.000 claims description 26
- 239000002184 metal Substances 0.000 claims description 9
- 229910052751 metal Inorganic materials 0.000 claims description 9
- 238000009833 condensation Methods 0.000 claims description 4
- 230000005494 condensation Effects 0.000 claims description 4
- 230000011218 segmentation Effects 0.000 claims description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000005065 mining Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture 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
- 238000011084 recovery Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK 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
-
- 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
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
- E21F17/103—Dams, e.g. for ventilation
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)
- Remote Sensing (AREA)
- Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
Abstract
The invention discloses a kind of construction methods of gob side entry retaining, include the following steps: S001: with the propulsion of working face, forming tunnel at the rear of the working face；S002: the side in the tunnel close to the goaf is disposed with the spoil barrier structure for stopping spoil；S003: artificial wall is constructed in the side in the tunnel close to the spoil barrier structure；The bottom end of the artificial wall is constructed on the roadway floor in the tunnel, the back in tunnel described in the apical support of the artificial wall；S004: gob side entry retaining is formed between the coal body and the artificial wall.The construction method of gob side entry retaining disclosed by the invention, by setting spoil barrier structure for stopping spoil so that the spoil of erecting dense individual props will not act on artificial wall, prevent artificial wall occur into gob side entry retaining in move, guarantee that gob side entry retaining can be used normally, improves construction safety.
Description
Technical field
The present invention relates to coal mining technology field more particularly to a kind of construction methods of gob side entry retaining.
Background technique
Gob side entry retaining can reduce tunnel pick by retaining tunnel using wall by lane so that next working face extraction uses
Input alleviates excavation replacement, is the important technology component part of lasting exploit.
With the development of mechanization and material, wall gradually develops from wooden prop, waste pack to filled wall by lane, filling
Though body compression strength can substantially meet the intensity requirement that top base object model rotation is sunk, however collapsing naturally due to goaf top plate
It falling and sinks with the rotation of base object model above road-in packing, the spoil of inbreak will generate horizontal compression to obturation, so that
Obturation is moved into lane, and interior shifting amount maximum seriously affects the normal use in the lane Liao Kongliu up to 1m or more, threatens safety raw
It produces.
Summary of the invention
The purpose of the present invention is to provide a kind of construction methods of gob side entry retaining that can be avoided and move in artificial wall.
Technical solution of the present invention provides a kind of construction method of gob side entry retaining, includes the following steps:
S001: with the propulsion of working face, tunnel is formed at the rear of the working face；Wherein, the one of the tunnel
Side is the goaf with spoil, is coal body in the other side in the tunnel；
S002: the side in the tunnel close to the goaf is disposed with the spoil blocking junction for stopping spoil
Structure；
S003: artificial wall is constructed in the side in the tunnel close to the spoil barrier structure；
The bottom end of the artificial wall is constructed on the roadway floor in the tunnel, the apical support institute of the artificial wall
State the back in tunnel；
S004: gob side entry retaining is formed between the coal body and the artificial wall.
Further, in the step S003: being constructed at the spoil barrier structure pre-determined distance described artificial
Wall.
Further, in the step S003: with the driving of the working face, the artificial wall is constructed in segmentation；
After having constructed one section of artificial wall, then construct the next section of artificial wall.
Further, further include following steps in the step S003:
Region to be filled is arranged close to the side of the spoil barrier structure in the tunnel；
Filling template is set up in the region to be filled；
Walling material is filled into the filling template；
The artificial wall is formed after the walling condensation of materials；
Remove the filling template.
Further, the walling material is concrete or/and cementing material.
Further, to the artificial wall whitewashing sealing.
Further, the cementing material is high-water material.
Further, further include following steps in the step S002:
More root bottom part anchor poles are arranged in interval on the roadway floor, and the bottom anchor pole prolongs towards the back
It stretches；
More roll bolts of interval setting, the roll bolt prolong towards the roadway floor on the back
It stretches；
The spoil barrier structure is collectively formed in the more roll bolts and the more bottom anchor poles.
Further, metal mesh is connected between the roll bolt and the bottom anchor pole.
Further, it is corresponding with the roll bolt above the every bottom anchor pole, the roll bolt
Pre-determined distance is separated between lower end and the upper end of the bottom anchor pole；
The metal mesh is connected between the lower end of the roll bolt and the upper end of the bottom anchor pole.
By adopting the above technical scheme, it has the following beneficial effects:
The construction method of gob side entry retaining provided by the invention, by setting spoil barrier structure for stopping spoil, so that
The spoil of erecting dense individual props will not act on artificial wall, prevent artificial wall occur into gob side entry retaining in move, guarantee edge
The lane Kong Liu can be used normally, and improve construction safety.
Detailed description of the invention
Fig. 1 is that the construction method of gob side entry retaining provided in an embodiment of the present invention constructs spoil barrier structure in tunnel
Schematic diagram；
Fig. 2 is that the construction method of gob side entry retaining provided in an embodiment of the present invention arranges the signal in region to be filled in tunnel
Figure；
Fig. 3 is that the construction method of gob side entry retaining provided in an embodiment of the present invention constructs the signal of artificial wall in tunnel
Figure；
Fig. 4 be Fig. 3 along A-A to cross-section diagram.
Specific embodiment
Further illustrate a specific embodiment of the invention with reference to the accompanying drawing.Wherein identical components are with identical
Appended drawing reference indicates.It should be noted that word "front", "rear" used in the following description, "left", "right", "up" and "down"
Refer to that the direction in attached drawing, word "inner" and "outside" refer respectively to the direction towards or away from geometric center of specific component.
As shown in Figs 1-4, the construction method for the gob side entry retaining that one embodiment of the invention provides, includes the following steps:
S001: with the propulsion of working face, tunnel 1 is formed at the rear of working face.It wherein, is tool in the side in tunnel 1
There is the goaf 100 of spoil 101, is coal body 200 in the other side in tunnel 1.
S002: the side in tunnel 1 close to goaf 100 is disposed with the spoil barrier structure for stopping spoil 101
2。
S003: artificial wall 3 is constructed in the side in tunnel 1 close to spoil barrier structure 2.
The bottom end of artificial wall 3 is constructed on the roadway floor 11 in tunnel 1, the lane in the apical support tunnel 1 of artificial wall 3
Road top plate 12.
S004: gob side entry retaining 10 is formed between coal body 200 and artificial wall 3.
Tunnel 1 is formed between goaf 100 and coal body 200, and with the propulsion of working face, hydraulic support 4 is supported on lane
On road top plate 12.With the propulsion of working face, tunnel 1 is formed in the rear of hydraulic support 4.
Spoil barrier structure 2 constructs the side on tunnel 1 close to goaf 100, for stopping the spoil 101 of inbreak.
Artificial wall 3 is constructed in tunnel 1, artificial wall 3 is close to the side of spoil barrier structure 2, thus in coal body 200
Gob side entry retaining 10 is formd between artificial wall 3.
Gob side entry retaining 10 is to safeguard former stope drift active workings along mined out area edge after coal working face.In order to recycle traditional mining mode side
The protection coal pillar set is stayed in formula, leaving the crossheading of a upper section again supporting for next section using certain technological means makes
With.This way for staying lane is to retain to be known as gob side entry retaining in former crossheading position along mined out area edge.Gob side entry retaining can be with
Resource recovery avoids coal body from losing to greatest extent.
The construction method of gob side entry retaining provided by the invention, by setting spoil barrier structure 2 for stopping spoil 101,
So that the spoil 101 of 100 inbreak of goaf will not act on artificial wall 3, the spoil of 100 inbreak of goaf can be stopped
101 pairs of artificial walls 3 directly apply horizontal applied force, prevent artificial wall 3 occur into gob side entry retaining 10 in move, guarantee stayed along sky
Lane 10 can be used normally, and improve construction safety.
Preferably, in step S003: artificial wall 3 is constructed at 2 pre-determined distance of spoil barrier structure, so that manually
Wall 3 is apart from 2 certain distance of spoil barrier structure, to form certain intervals space, can pass through spoil to avoid spoil is made
Barrier structure 2 acts on artificial wall 3, farthest protects artificial wall 3, avoids moving in it.
Preferably, in step S003: with the driving of working face, artificial wall is constructed in segmentation；Constructing one section of people
After work wall, then construct next section of artificial wall.In such a way that segmentation is constructed, it synchronous with working face can carry out, conveniently apply
Work.
Preferably, further including following steps in step S003 as Figure 2-3:
Region 13 to be filled is arranged close to the side of spoil barrier structure 2 in tunnel 1.It is set up in region 13 to be filled
Filling template.Walling material is filled into filling template.Artificial wall 3 is formed after walling condensation of materials.Remove filling template.
By arranging region 13 to be filled in advance, region 13 to be filled is disposed adjacent to the side of spoil barrier structure 2.
Then filling template is constructed in region 13 to be filled, then fills walling material into filling template.After standing a period of time,
Then walling condensation of materials is formed artificial wall 3, finally removes filling template, artificial wall 3 is made to be spaced in coal body 200
Between spoil barrier structure 2.At this point, foring gob side entry retaining 10 between coal body 200 and artificial wall 3.
Preferably, walling material is concrete or/and cementing material.Walling material can be individually for concrete, Huo Zhedan
It is solely cementing material, or is the mixture of concrete and cementing material, applied widely, artificial wall body structure after molding is strong
Degree is high.
Cementing material can be high-water material.High-water material is the unit filling and tailings of metallurgy industry gold mine, iron ore etc.
The cementing material of filling, waste material filling.
It is sealed preferably, whitewashing to artificial wall 3, with the gas completely cut off in goaf 100, goaf 100 is avoided to leak out,
It causes to lose coal spontaneous, improves the security performance of construction.
Preferably, further including following steps in step S002 as shown in Figs 1-4:
More root bottom part anchor poles 21 are arranged in interval on roadway floor 11, and bottom anchor pole 21 extends towards back 12.
More roll bolts 22 of interval setting, roll bolt 22 extend towards roadway floor 11 on back 12.
Spoil barrier structure 2 is collectively formed in more roll bolts 22 and more root bottom part anchor poles 21.
Facilitate construction and molding spoil barrier structure 2, and using the anchor pole of shearing resistance as roll bolt 22 and bottom anchor
Bar 21, improves structural strength, and spoil is avoided to break through spoil barrier structure 2 and influence artificial wall 3.
Preferably, as shown in Figs 1-4, metal mesh 23 is connected between roll bolt 22 and bottom anchor pole 21, by anti-
The spoil barrier structure 2 that the anchor pole and mining metal mesh 23 cut form, effectively controls the interior shifting of artificial wall 3.
Preferably, as shown in Figs 1-4, the top of every root bottom part anchor pole 21 is corresponding with a roll bolt 22, roll bolt
Pre-determined distance is separated between 22 lower end and the upper end of bottom anchor pole 21.
Metal mesh 23 is connected between the lower end of roll bolt 22 and the upper end of bottom anchor pole 21.Facilitate the peace of metal mesh 23
Dress, the spoil that can effectively stop particle small by metal mesh 23, roll bolt 22 and lower part anchor pole 21 can effectively stop
The big spoil of particle, improves spoil blocking effect.
As needed, above-mentioned each technical solution can be combined, to reach best-of-breed technology effect.
Above-described is only the principle of the present invention and preferred embodiment.It should be pointed out that for the common skill of this field
For art personnel, on the basis of the principle of the invention, several other modifications can also be made, also should be regarded as protection model of the invention
It encloses.
Claims (10)
1. a kind of construction method of gob side entry retaining, which comprises the steps of:
S001: with the propulsion of working face, tunnel is formed at the rear of the working face；Wherein, it is in the side in the tunnel
Goaf with spoil is coal body in the other side in the tunnel；
S002: the side in the tunnel close to the goaf is disposed with the spoil barrier structure for stopping spoil；
S003: artificial wall is constructed in the side in the tunnel close to the spoil barrier structure；
The bottom end of the artificial wall is constructed on the roadway floor in the tunnel, lane described in the apical support of the artificial wall
The back in road；
S004: gob side entry retaining is formed between the coal body and the artificial wall.
2. the construction method of gob side entry retaining according to claim 1, which is characterized in that in the step S003:
The artificial wall is constructed at the spoil barrier structure pre-determined distance.
3. the construction method of gob side entry retaining according to claim 1, which is characterized in that in the step S003:
With the driving of the working face, the artificial wall is constructed in segmentation；
After having constructed one section of artificial wall, then construct the next section of artificial wall.
4. the construction method of gob side entry retaining described in any one of -4 according to claim 1, which is characterized in that in the step
Further include following steps in S003:
Region to be filled is arranged close to the side of the spoil barrier structure in the tunnel；
Filling template is set up in the region to be filled；
Walling material is filled into the filling template；
The artificial wall is formed after the walling condensation of materials；
Remove the filling template.
5. the construction method of gob side entry retaining according to claim 4, which is characterized in that the walling material is concrete
Or/and cementing material.
6. the construction method of gob side entry retaining according to claim 4, which is characterized in that close to the artificial wall whitewashing
Envelope.
7. the construction method of gob side entry retaining according to claim 5, which is characterized in that the cementing material is Gao Shuicai
Material.
8. the construction method of gob side entry retaining described in any one of -4 according to claim 1, which is characterized in that in the step
Further include following steps in S002:
More root bottom part anchor poles are arranged in interval on the roadway floor, and the bottom anchor pole extends towards the back；
More roll bolts of interval setting, the roll bolt extend towards the roadway floor on the back；
The spoil barrier structure is collectively formed in the more roll bolts and the more bottom anchor poles.
9. the construction method of gob side entry retaining according to claim 8, which is characterized in that in the roll bolt and the bottom
Metal mesh is connected between portion's anchor pole.
10. the construction method of gob side entry retaining according to claim 9, which is characterized in that every bottom anchor pole it is upper
Side be corresponding with the roll bolt, between the lower end of the roll bolt and the upper end of the bottom anchor pole between be separated with it is default
Distance；
The metal mesh is connected between the lower end of the roll bolt and the upper end of the bottom anchor pole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810991264.6A CN109098712A (en) | 2018-08-29 | 2018-08-29 | A kind of construction method of gob side entry retaining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810991264.6A CN109098712A (en) | 2018-08-29 | 2018-08-29 | A kind of construction method of gob side entry retaining |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109098712A true CN109098712A (en) | 2018-12-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810991264.6A Pending CN109098712A (en) | 2018-08-29 | 2018-08-29 | A kind of construction method of gob side entry retaining |
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| Country | Link |
|---|---|
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101864987A (en) * | 2010-06-13 | 2010-10-20 | 中国矿业大学 | Building method of filled wall body for gob-side entry retaining of large-inclination coal seam |
| CN102852550A (en) * | 2012-04-01 | 2013-01-02 | 中国矿业大学 | Coal-pillar-free semi-normal-position goaf-side entry retaining method |
| CN203383851U (en) * | 2013-07-17 | 2014-01-08 | 安徽理工大学 | Gob-side entry retaining flexible filling wall body structure |
| CN103967519A (en) * | 2014-05-15 | 2014-08-06 | 山东科技大学 | Method for reinforcing gob-side entry retaining through fallen gangue in gob of composite top board inclined seam |
| CN104018837A (en) * | 2014-06-20 | 2014-09-03 | 中国矿业大学 | Spacing-filling gob-side entry retaining method for treating dinting gangue |
| CN104481568A (en) * | 2014-09-15 | 2015-04-01 | 辽宁工程技术大学 | Fully mechanized caving face gob-side entry retaining process and ventilating method |
| CN105715297A (en) * | 2016-01-26 | 2016-06-29 | 山东科技大学 | Method for treating heavy inclined seam gob-side entry retaining gangue |
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-
2018
- 2018-08-29 CN CN201810991264.6A patent/CN109098712A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101864987A (en) * | 2010-06-13 | 2010-10-20 | 中国矿业大学 | Building method of filled wall body for gob-side entry retaining of large-inclination coal seam |
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| CN203383851U (en) * | 2013-07-17 | 2014-01-08 | 安徽理工大学 | Gob-side entry retaining flexible filling wall body structure |
| CN103967519A (en) * | 2014-05-15 | 2014-08-06 | 山东科技大学 | Method for reinforcing gob-side entry retaining through fallen gangue in gob of composite top board inclined seam |
| CN104018837A (en) * | 2014-06-20 | 2014-09-03 | 中国矿业大学 | Spacing-filling gob-side entry retaining method for treating dinting gangue |
| CN104481568A (en) * | 2014-09-15 | 2015-04-01 | 辽宁工程技术大学 | Fully mechanized caving face gob-side entry retaining process and ventilating method |
| CN105715297A (en) * | 2016-01-26 | 2016-06-29 | 山东科技大学 | Method for treating heavy inclined seam gob-side entry retaining gangue |
| CN106285692A (en) * | 2016-08-31 | 2017-01-04 | 中国神华能源股份有限公司 | A kind of construction method of gob side entry retaining |
| CN107355223A (en) * | 2017-08-21 | 2017-11-17 | 华北科技学院 | A kind of stope drift active workings gob-side entry retaining method suitable for easy inbreak top plate |
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Application publication date: 20181228 |