CN108194140A - A kind of lock wall and its casting method for underground coal mine waterproof - Google Patents
A kind of lock wall and its casting method for underground coal mine waterproof Download PDFInfo
- Publication number
- CN108194140A CN108194140A CN201711439511.3A CN201711439511A CN108194140A CN 108194140 A CN108194140 A CN 108194140A CN 201711439511 A CN201711439511 A CN 201711439511A CN 108194140 A CN108194140 A CN 108194140A
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- China
- Prior art keywords
- wall
- lock
- lock wall
- coal mine
- underground coal
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- 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.)
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- 239000003245 coal Substances 0.000 title claims abstract description 51
- 238000005266 casting Methods 0.000 title claims abstract description 18
- 238000000034 method Methods 0.000 title claims abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 27
- 239000011435 rock Substances 0.000 claims abstract description 22
- 238000007569 slipcasting Methods 0.000 claims abstract description 19
- 210000003205 muscle Anatomy 0.000 claims description 26
- 238000005336 cracking Methods 0.000 claims description 23
- 239000010410 layer Substances 0.000 claims description 20
- 230000003014 reinforcing effect Effects 0.000 claims description 16
- 239000011449 brick Substances 0.000 claims description 15
- 239000011241 protective layer Substances 0.000 claims description 10
- 238000003780 insertion Methods 0.000 claims description 4
- 230000037431 insertion Effects 0.000 claims description 4
- 238000005728 strengthening Methods 0.000 claims description 3
- 238000003325 tomography Methods 0.000 claims description 2
- 230000006835 compression Effects 0.000 abstract description 7
- 238000007906 compression Methods 0.000 abstract description 7
- 238000000605 extraction Methods 0.000 abstract description 7
- 230000002706 hydrostatic effect Effects 0.000 abstract description 7
- 238000005065 mining Methods 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- -1 wherein Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH 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
Abstract
The invention discloses a kind of lock walls for underground coal mine waterproof, including lock wall wall, the first auxiliary shaft opening's edge mine water pressure direction that the lock wall wall is closed on from the main shaft mouth of pit mining is extended at the weak water-bearing fault of second auxiliary shaft mouth of mine tail end, the first lock wall wall is provided at the first auxiliary shaft mouth, the second lock wall wall is provided at second auxiliary shaft mouth, the slip casting section of concreting wall is equipped between first lock wall wall and the second lock wall wall, wherein the bottom plate of lock wall wall is located at the upper disk of weak water-bearing fault, wall side portion is embedded in underground country rock, inlet well is additionally provided at the top of the slip casting section, the invention also discloses a kind of casting methods of the lock wall for underground coal mine waterproof；Technical solution using the present invention, underground waterproof lock wall meets resistance to compression and shear resistance, and then ensure working face safety coal extraction in the case of ensureing hydrostatic pressure.
Description
Technical field
The invention belongs to coal mining field, it is more particularly related to a kind of lock for underground coal mine waterproof
Wall and its casting method.
Background technology
Disaster in coal mining exploitation process, undergrounds disaster, the water damage such as explosion are main caused by mainly having water damage, gas
It is that coal back production water crack seamed belt involves coal cutting roadway, moving water in lane enters working face, and security risk, lane are brought to working face extraction
There are four types of interior dynamic water water sources：Too buck, Ordovician karst water, tomography water and roof and floor crevice water etc., leaking crevice belt involves back after back production
Tunnel is adopted, dynamic water enters working face, serious threat working face safety coal extraction；The prior art administers water damage generally using suitably
The mode of the reserved waterproof lock room of point and floodgate wall separates flow, and still, the source of underground water is different, and hydraulic pressure is different, conventional
Waterproof lock room be difficult in adapt to the surrounding rock failure generated in work progress with floodgate wall and ground restrictive condition is different
Stope drift active workings cause in the case of hydrostatic pressure underground waterproof lock wall to be difficult to meet resistance to compression and shear resistance, waterproof lock wall by
It destroys, serious threat working face safety coal extraction.
Invention content
Underground waterproof lock wall is expired in the case that the technical problems to be solved by the invention are to provide a kind of guarantee hydrostatic pressure
Sufficient resistance to compression and shear resistance, and then ensure the lock wall for underground coal mine waterproof of working face safety coal extraction.
The invention also discloses a kind of casting methods of the lock wall for underground coal mine waterproof.
To achieve these goals, the technical solution taken of the present invention is：The one kind provided is used for underground coal mine waterproof
Lock wall, including lock wall wall, the first auxiliary shaft opening's edge mine water that the lock wall wall is closed on from the main shaft mouth of pit mining
Pressure direction is extended at the weak water-bearing fault of second auxiliary shaft mouth of mine tail end, and the first lock wall is provided at the first auxiliary shaft mouth
Wall is provided with the second lock wall wall at second auxiliary shaft mouth, is equipped between the first lock wall wall and the second lock wall wall mixed
Solidifying soil pours the slip casting section of wall, and the wherein bottom plate of lock wall wall is located at the upper disk of weak water-bearing fault, wall side portion insertion well
Lower country rock, slip casting section top are additionally provided with inlet well.
A kind of lock wall for underground coal mine waterproof disclosed by the invention, the first lock wall wall are two set along tunnel
The cone for clipping top put upside down of superposition, the wide portion of wall is vertical with inflow direction, the first lock wall wall center line and coal mine
The center line in lower tunnel overlaps, and wall side is 20 ° with centerlines.
A kind of lock wall for underground coal mine waterproof disclosed by the invention, the second lock wall wall are two set along tunnel
The cone for clipping top put upside down of superposition, the wide portion of wall is vertical with inflow direction, the second lock wall wall center line and coal mine
The center line in lower tunnel overlaps, and wall side is 20 ° with centerlines.
A kind of lock wall for underground coal mine waterproof disclosed by the invention, the first lock wall wall both ends setting cracking resistance muscle, resists
It is in the latticed reinforcing bar for being fixed in surface of wall to split muscle, and cracking resistance muscle outside pours a layer concrete protective layer.
A kind of lock wall for underground coal mine waterproof disclosed by the invention, the side portion of the first lock wall wall are embedding by anchor pole
Enter in the side wall country rock of tunnel, wherein anchor pole one end and wall is affixed, and one-piece casting is integrated after the other end is connect with roadway surrounding rock.
A kind of lock wall for underground coal mine waterproof disclosed by the invention, the second lock wall wall both ends setting cracking resistance muscle, resists
It is in the latticed reinforcing bar for being fixed in surface of wall to split muscle, and cracking resistance muscle outside pours a layer concrete protective layer.
A kind of lock wall for underground coal mine waterproof disclosed by the invention, the side portion of the second lock wall wall are embedding by anchor pole
Enter in the side wall country rock of tunnel, wherein anchor pole one end and wall is affixed, and one-piece casting is integrated after the other end is connect with roadway surrounding rock.
A kind of lock wall for underground coal mine waterproof disclosed by the invention, the axis of inlet well is vertical with back,
The oral area of inlet well is arranged on ground, and inlet well extends along ground to underground.
The invention also discloses a kind of casting methods of the lock wall for underground coal mine waterproof, include the following steps：
1) using concrete strengthening tunnel side wall before lock wall is built by laying bricks or stones, thickness >=200mm of reinforcing layer, the length of reinforcing >=
5m；
2) it builds lock wall wall by laying bricks or stones, the first lock wall wall is built by laying bricks or stones at the first auxiliary shaft mouth, built by laying bricks or stones at second auxiliary shaft mouth
Second lock wall wall is equipped with the slip casting section of concreting wall, tunnel side between the first lock wall wall and the second lock wall wall
Wall reinforcing layer is integrally built by laying bricks or stones with lock wall wall；
3) the first lock wall wall and the second lock wall wall surrounding distinguish laterally inserted anchor pole, and anchor pole one end and wall are affixed,
One-piece casting is integrated after the other end is connect with roadway surrounding rock；
4) the first lock wall wall and the second lock wall wall both ends set cracking resistance muscle respectively, and one layer of protection is poured on the outside of cracking resistance muscle
Layer, wherein, protective layer is the concrete layer that thickness is 70mm；
5) the first lock wall wall, the second lock wall wall and slip casting section are poured respectively.
A kind of casting method of lock wall for underground coal mine waterproof disclosed by the invention, the first lock wall wall, the second lock
Wall wall and slip casting section are respectively adopted plain concrete and are poured；Cracking resistance muscle is reinforcing bar, wherein, bar spacing 200mm, array pitch
For 250mm.
Technical solution using the present invention sets waterproof lock wall at the weak water-bearing fault of underground coal mine, can when flood occurs
Mine subregion is isolated, reduces the condition of a disaster coverage, control flow of water harm, it is ensured that mine safety, the design of waterproof lock wall are main
The calculating of structure type including waterproof lock wall both ends wall, wall length, embedded country rock size, grouting design between wall, with
Ensure that waterproof lock wall has enough resistance to compressions and shear resistance in the case where designing hydrostatic pressure, it is ensured that waterproof lock wall is not subjected to brokenly
It is bad, and then ensure the safety in production of mine；First lock wall wall and the second lock wall wall are set as two and are fallen along what tunnel was superimposed
What is put clips the cone at top, and the wide portion of wall is vertical with inflow direction, ensures waterproof lock wall in the case where designing hydrostatic pressure
There are enough resistance to compressions and shear resistance, and then ensure working face safety coal extraction；Between first lock wall wall and the second lock wall wall
The slip casting section of concreting wall is set, water shutoff quality and effect can be effectively improved, mine subregion is isolated, to greatest extent
Ground reduces flood probability.
Below with reference to drawings and examples, the present invention is described in detail.
Description of the drawings
The content to this specification expressed by each width attached drawing and the label in figure are briefly described below：
Fig. 1 is a kind of schematic diagram of lock wall for underground coal mine waterproof of the invention：
Fig. 2 is a kind of sectional view of the first lock wall wall for underground coal mine waterproof of the invention.
In figure label for：1st, the first lock wall wall；2nd, the second lock wall wall；3rd, slip casting section；4th, inlet well；5th, bottom plate；
6th, tunnel.
Specific embodiment
Below against attached drawing, by the description of the embodiment, each structure for example involved to the specific embodiment of the present invention
Mutual alignment and connection relation, the effect of each section and operation principle, manufacturing process between the shape of part, construction, each section
And operate with method etc., be described in further detail, with help those skilled in the art to the present invention inventive concept,
Technical solution has more complete, accurate and deep understanding.
Fig. 1 is a kind of schematic diagram of lock wall for underground coal mine waterproof of the invention；Fig. 2 is a kind of for coal mine for the present invention
The sectional view of first lock wall wall of underground waterproof；A kind of lock wall for underground coal mine waterproof of the present invention as depicted, packet
Lock wall wall is included, the first auxiliary shaft opening's edge mine water pressure direction that the lock wall wall is closed on from the main shaft mouth of pit mining prolongs
It extends at the weak water-bearing fault of second auxiliary shaft mouth of mine tail end, the first lock wall wall 1 is provided at the first auxiliary shaft mouth, it is close
The second lock wall wall 2 is provided at second auxiliary shaft mouth, is poured between the first lock wall wall 1 and the second lock wall wall 2 equipped with concrete
The bottom plate 5 of the slip casting section 3 of walling body, wherein lock wall wall is located at the upper disk of weak water-bearing fault, and wall side portion insertion underground is enclosed
Rock, 3 top of slip casting section are additionally provided with inlet well 4；First lock wall wall 1 is to put upside down along what two that tunnel 6 is set were superimposed
The cone at top is clipped, the wide portion of wall is vertical with inflow direction, the center of the first lock wall wall center line and coal mine down-hole tunnel 6
Line overlaps, and wall side is 20 ° with centerlines；Second lock wall wall 2 is to put upside down along what two that tunnel 6 is set were superimposed
The cone at top is clipped, the wide portion of wall is vertical with inflow direction, in 2 center line of the second lock wall wall and coal mine down-hole tunnel 6
Heart line overlaps, and wall side is 20 ° with centerlines；First lock wall wall, 1 both ends set cracking resistance muscle, and cracking resistance muscle is in grid
Shape is fixed in the reinforcing bar of surface of wall, and a layer concrete protective layer is poured on the outside of cracking resistance muscle；The side portion of first lock wall wall 1 is led to
It crosses in anchor pole insertion tunnel side wall country rock, wherein anchor pole one end and wall is affixed, and the other end integrally pours after being connect with roadway surrounding rock
It builds and is integrated；Second lock wall wall, 2 both ends set cracking resistance muscle, and cracking resistance muscle is in the latticed reinforcing bar for being fixed in surface of wall, is resisted
It splits and pours a layer concrete protective layer on the outside of muscle；The side portion of second lock wall wall 2 is embedded in by anchor pole in the side wall country rock of tunnel,
Wherein anchor pole one end and wall is affixed, and one-piece casting is integrated after the other end is connect with roadway surrounding rock；The axis of inlet well 4 with
Back is vertical, and the oral area of inlet well 4 is arranged on ground, and inlet well 4 extends along ground to underground.
The invention also discloses a kind of casting methods of the lock wall for underground coal mine waterproof, include the following steps：
1) using concrete strengthening tunnel side wall before lock wall is built by laying bricks or stones, thickness >=200mm of reinforcing layer, the length of reinforcing >=
5m；
2) it builds lock wall wall by laying bricks or stones, the first lock wall wall is built by laying bricks or stones at the first auxiliary shaft mouth, built by laying bricks or stones at second auxiliary shaft mouth
Second lock wall wall is equipped with the slip casting section of concreting wall, tunnel side between the first lock wall wall and the second lock wall wall
Wall reinforcing layer is integrally built by laying bricks or stones with lock wall wall；
3) the first lock wall wall and the second lock wall wall surrounding distinguish laterally inserted anchor pole, and anchor pole one end and wall are affixed,
One-piece casting is integrated after the other end is connect with roadway surrounding rock；
4) the first lock wall wall and the second lock wall wall both ends set cracking resistance muscle respectively, and one layer of protection is poured on the outside of cracking resistance muscle
Layer, wherein, protective layer is the concrete layer that thickness is 70mm；
5) the first lock wall wall, the second lock wall wall and slip casting section are poured respectively.
Technical solution using the present invention sets waterproof lock wall at the weak water-bearing fault of underground coal mine, can when flood occurs
Mine subregion is isolated, reduces the condition of a disaster coverage, control flow of water harm, it is ensured that mine safety, the design of waterproof lock wall are main
The calculating of structure type including waterproof lock wall both ends wall, wall length, embedded country rock size, grouting design between wall, with
Ensure that waterproof lock wall has enough resistance to compressions and shear resistance in the case where designing hydrostatic pressure, it is ensured that waterproof lock wall is not subjected to brokenly
It is bad, and then ensure the safety in production of mine；First lock wall wall and the second lock wall wall are set as two and are fallen along what tunnel was superimposed
What is put clips the cone at top, and the wide portion of wall is vertical with inflow direction, ensures waterproof lock wall in the case where designing hydrostatic pressure
There are enough resistance to compressions and shear resistance, and then ensure working face safety coal extraction；Between first lock wall wall and the second lock wall wall
The slip casting section of concreting wall is set, water shutoff quality and effect can be effectively improved, mine subregion is isolated, to greatest extent
Ground reduces flood probability.
The present invention is exemplarily described above in conjunction with attached drawing, it is clear that present invention specific implementation is not by aforesaid way
Limitation, as long as employ the inventive concept and technical scheme of the present invention progress various unsubstantialities improvement or without changing
Other occasions are directly applied to by the design of the present invention and technical solution, within protection scope of the present invention.
Claims (10)
1. a kind of lock wall for underground coal mine waterproof, including lock wall wall, it is characterised in that：The lock wall wall is from mine
The second auxiliary shaft mouth that the first auxiliary shaft opening's edge mine water pressure direction that the main shaft mouth of exploitation closes on extends to mine tail end is weak aqueous
At tomography, the first lock wall wall is provided at the first auxiliary shaft mouth, the second lock wall wall is provided at second auxiliary shaft mouth,
The bottom plate position of slip casting section, wherein lock wall wall equipped with concreting wall between first lock wall wall and the second lock wall wall
In the upper disk of weak water-bearing fault, wall side portion insertion underground country rock, slip casting section top is additionally provided with inlet well.
2. a kind of lock wall for underground coal mine waterproof described in accordance with the claim 1, it is characterised in that：The first lock wall
Wall is the cone for clipping top put upside down of two superpositions set along tunnel, and the wide portion of wall is vertical with inflow direction, first
Lock wall wall center line is overlapped with the center line of coal mine down-hole tunnel, and wall side is 20 ° with centerlines.
3. a kind of lock wall for underground coal mine waterproof described in accordance with the claim 1, it is characterised in that：The second lock wall
Wall is the cone for clipping top put upside down of two superpositions set along tunnel, and the wide portion of wall is vertical with inflow direction, second
Lock wall wall center line is overlapped with the center line of coal mine down-hole tunnel, and wall side is 20 ° with centerlines.
4. according to a kind of lock wall for underground coal mine waterproof described in claims 1 or 2, it is characterised in that：Described first
Lock wall wall both ends set cracking resistance muscle, and cracking resistance muscle is in the latticed reinforcing bar for being fixed in surface of wall, and cracking resistance muscle outside pours one
Layer concrete protective layer.
5. according to a kind of lock wall for underground coal mine waterproof described in claim 4, it is characterised in that：The first lock wall
The side portion of wall is embedded in by anchor pole in the side wall country rock of tunnel, and wherein anchor pole one end is affixed with wall, and the other end is enclosed with tunnel
One-piece casting is integrated after rock connection.
6. according to a kind of lock wall for underground coal mine waterproof described in claim 1 or 3, it is characterised in that：Described second
Lock wall wall both ends set cracking resistance muscle, and cracking resistance muscle is in the latticed reinforcing bar for being fixed in surface of wall, and cracking resistance muscle outside pours one
Layer concrete protective layer.
7. according to a kind of lock wall for underground coal mine waterproof described in claim 6, it is characterised in that：The second lock wall
The side portion of wall is embedded in by anchor pole in the side wall country rock of tunnel, and wherein anchor pole one end is affixed with wall, and the other end is enclosed with tunnel
One-piece casting is integrated after rock connection.
8. a kind of lock wall for underground coal mine waterproof described in accordance with the claim 1, it is characterised in that：The inlet well
Axis it is vertical with back, the oral area of inlet well is arranged on ground, and inlet well extends along ground to underground.
9. a kind of casting method for the lock wall that underground coal mine waterproof is used for according to claim 1~8 any one of them, feature
It is：Include the following steps：
1) using concrete strengthening tunnel side wall, thickness >=200mm of reinforcing layer, length >=5m of reinforcing before lock wall is built by laying bricks or stones；
2) it builds lock wall wall by laying bricks or stones, the first lock wall wall is built by laying bricks or stones at the first auxiliary shaft mouth, second is built by laying bricks or stones at second auxiliary shaft mouth
Lock wall wall, is equipped with the slip casting section of concreting wall between the first lock wall wall and the second lock wall wall, tunnel side wall adds
Gu layer is integrally built by laying bricks or stones with lock wall wall；
3) the first lock wall wall and the second lock wall wall surrounding distinguish laterally inserted anchor pole, and anchor pole one end and wall are affixed, another
One-piece casting is integrated after end is connect with roadway surrounding rock；
4) the first lock wall wall and the second lock wall wall both ends set cracking resistance muscle respectively, and layer protective layer is poured on the outside of cracking resistance muscle,
Wherein, protective layer is the concrete layer that thickness is 70mm；
5) the first lock wall wall, the second lock wall wall and slip casting section are poured respectively.
10. according to a kind of casting method of lock wall for underground coal mine waterproof described in claim 9, it is characterised in that：Institute
The first lock wall wall, the second lock wall wall and the slip casting section stated are respectively adopted plain concrete and are poured；Cracking resistance muscle is reinforcing bar,
In, bar spacing 200mm, array pitch 250mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711439511.3A CN108194140A (en) | 2017-12-27 | 2017-12-27 | A kind of lock wall and its casting method for underground coal mine waterproof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711439511.3A CN108194140A (en) | 2017-12-27 | 2017-12-27 | A kind of lock wall and its casting method for underground coal mine waterproof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108194140A true CN108194140A (en) | 2018-06-22 |
Family
ID=62584279
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711439511.3A Pending CN108194140A (en) | 2017-12-27 | 2017-12-27 | A kind of lock wall and its casting method for underground coal mine waterproof |
Country Status (1)
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| CN (1) | CN108194140A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4784522A (en) * | 1986-11-14 | 1988-11-15 | Dennis Mraz | Method and apparatus for effecting high pressure isolation of liquids |
| CN202081916U (en) * | 2011-04-28 | 2011-12-21 | 煤炭工业济南设计研究院有限公司 | High-pressure waterproof lock wall |
| EA201171238A1 (en) * | 2011-09-07 | 2013-03-29 | Открытое Акционерное Общество "Белгорхимпром" (Оао "Белгорхимпром") | METHOD OF PREVENTION OF FLOODING OF POTASSIUM MINES DURING BREAKTHROUGHES IN THE MINE OF UNDERGROUND WATER FROM GEOLOGICAL DISORDERS |
| CN203374309U (en) * | 2013-06-21 | 2014-01-01 | 中国瑞林工程技术有限公司 | Inverted truncated cone type large hydraulic pressure mine waterproof gate chamber |
| CN203879548U (en) * | 2014-03-24 | 2014-10-15 | 铜陵有色设计研究院 | Sealing wall for water plugging of mine roadway |
| CN205422815U (en) * | 2016-03-14 | 2016-08-03 | 河北钢铁集团矿业有限公司 | Big flood underground mine tunnel waterwall |
| CN207960680U (en) * | 2017-12-27 | 2018-10-12 | 淮北工业建筑设计院有限责任公司 | A kind of lock wall for underground coal mine waterproof |
-
2017
- 2017-12-27 CN CN201711439511.3A patent/CN108194140A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4784522A (en) * | 1986-11-14 | 1988-11-15 | Dennis Mraz | Method and apparatus for effecting high pressure isolation of liquids |
| CN202081916U (en) * | 2011-04-28 | 2011-12-21 | 煤炭工业济南设计研究院有限公司 | High-pressure waterproof lock wall |
| EA201171238A1 (en) * | 2011-09-07 | 2013-03-29 | Открытое Акционерное Общество "Белгорхимпром" (Оао "Белгорхимпром") | METHOD OF PREVENTION OF FLOODING OF POTASSIUM MINES DURING BREAKTHROUGHES IN THE MINE OF UNDERGROUND WATER FROM GEOLOGICAL DISORDERS |
| CN203374309U (en) * | 2013-06-21 | 2014-01-01 | 中国瑞林工程技术有限公司 | Inverted truncated cone type large hydraulic pressure mine waterproof gate chamber |
| CN203879548U (en) * | 2014-03-24 | 2014-10-15 | 铜陵有色设计研究院 | Sealing wall for water plugging of mine roadway |
| CN205422815U (en) * | 2016-03-14 | 2016-08-03 | 河北钢铁集团矿业有限公司 | Big flood underground mine tunnel waterwall |
| CN207960680U (en) * | 2017-12-27 | 2018-10-12 | 淮北工业建筑设计院有限责任公司 | A kind of lock wall for underground coal mine waterproof |
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