CN108798782A - A kind of tunnel fire dam displacement method - Google Patents
A kind of tunnel fire dam displacement method Download PDFInfo
- Publication number
- CN108798782A CN108798782A CN201810856619.0A CN201810856619A CN108798782A CN 108798782 A CN108798782 A CN 108798782A CN 201810856619 A CN201810856619 A CN 201810856619A CN 108798782 A CN108798782 A CN 108798782A
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- Prior art keywords
- fire dam
- tunnel
- dam
- old
- displacement method
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- 238000011549 displacement method Methods 0.000 title claims abstract description 13
- 238000012544 monitoring process Methods 0.000 claims abstract description 17
- 239000000463 material Substances 0.000 claims abstract description 16
- 239000000523 sample Substances 0.000 claims abstract description 16
- 238000009434 installation Methods 0.000 claims abstract description 14
- 231100000331 toxic Toxicity 0.000 claims abstract description 9
- 230000002588 toxic effect Effects 0.000 claims abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 6
- 238000005187 foaming Methods 0.000 claims abstract description 4
- 238000012545 processing Methods 0.000 claims abstract description 4
- 230000002787 reinforcement Effects 0.000 claims abstract description 4
- 239000007789 gas Substances 0.000 claims description 30
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 claims description 11
- 229910000831 Steel Inorganic materials 0.000 claims description 8
- 239000010959 steel Substances 0.000 claims description 8
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 6
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 6
- 229910000037 hydrogen sulfide Inorganic materials 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 5
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 4
- 229910002091 carbon monoxide Inorganic materials 0.000 claims description 4
- 238000005516 engineering process Methods 0.000 claims description 4
- MGWGWNFMUOTEHG-UHFFFAOYSA-N 4-(3,5-dimethylphenyl)-1,3-thiazol-2-amine Chemical compound CC1=CC(C)=CC(C=2N=C(N)SC=2)=C1 MGWGWNFMUOTEHG-UHFFFAOYSA-N 0.000 claims description 3
- 229910021529 ammonia Inorganic materials 0.000 claims description 3
- 238000011010 flushing procedure Methods 0.000 claims description 3
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- JCXJVPUVTGWSNB-UHFFFAOYSA-N nitrogen dioxide Inorganic materials O=[N]=O JCXJVPUVTGWSNB-UHFFFAOYSA-N 0.000 claims description 3
- 229910000069 nitrogen hydride Inorganic materials 0.000 claims description 3
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 claims description 2
- 240000007594 Oryza sativa Species 0.000 claims 1
- 235000007164 Oryza sativa Nutrition 0.000 claims 1
- 235000009566 rice Nutrition 0.000 claims 1
- 239000003245 coal Substances 0.000 description 9
- 238000005065 mining Methods 0.000 description 5
- 230000005641 tunneling Effects 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000004064 recycling Methods 0.000 description 3
- 238000005507 spraying Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 239000011378 shotcrete Substances 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000019771 cognition Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 238000001802 infusion Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000004073 vulcanization 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
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
- E21F17/103—Dams, e.g. for ventilation
- E21F17/12—Dam doors
-
- 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
- E21F17/18—Special adaptations of signalling or alarm devices
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)
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
The invention discloses a kind of tunnel fire dam displacement methods, include the following steps：Step 1: the first hole is made a call on old fire dam, installation gas concentration monitoring series probe and camera；Step 2: connecting suction pump on the pipe of turning one's coat that old fire dam is reserved, water in gob area processing is carried out；Step 3: making a call to the second hole at the middle part of old fire dam, the position area of new fire dam is determined according to camera head monitor picture, and fast foaming material is sprayed by the second hole, forms temporary airtight wall；Step 4: after forming temporary airtight wall, tunnel is evacuated, until can't detect toxic and harmful gas or toxic and harmful gas concentration drops to the acceptable range of human body；Step 5: removing old fire dam, air duct is installed above tunnel；Step 6: air duct is after installation is complete, to carrying out reinforcement supporting within the scope of each 5 meters before and after the position area of new fire dam；Step 7: in the newly-built permanent new fire dam in the position area of new fire dam.The tunnel fire dam displacement method of the present invention is safe and reliable, is easy to implement in underground, be simple and efficient.
Description
Technical field
The invention belongs to coal mine down-hole tunnel fire dam field, a kind of tunnel fire dam is specifically disclosed conveniently, safely
Displacement method.
Background technology
Over time, the science and technology in China and knowwhy have been made significant headway, but coal resources
The more adopt the more few, some old mining areas are being faced with the Tough questions of resource exhaustion, so Pillar Recovery problem also seems increasingly
It is prominent.For some old mining areas, since technical conditions and people stayed the cognition for setting and recycling relatively backward to stopping coal mining column at that time
With it is conservative, lead to stop coal mining column and stay to set longer and different in size, the installation position of fire dam is also to have length from stopping adopting with a distance from line
Have it is short, this just for the mechanization of our present coal columns recycling manufactured prodigious problem.Respectively stop for high efficiente callback coal column and unification
The recycling length of coal mining column needs the position of mobile tunnel fire dam, but since tunnel seal time is long, goaf is very
Be likely to occur ponding, the toxic and harmful gas such as gas, carbon monoxide, sulfur dioxide, in order to avoid these problems to artificial at wound
Evil, so urgently a kind of safety, science, convenient fire dam moving method solve the problems, such as this.
Invention content
In order to reasonably recycle pillar, the rate of recovery of raising coal column as high as possible, the present invention provides a kind of peaces
Entirely, science, convenient fire dam moving method.
To achieve the above object, the technical solution adopted by the present invention is a kind of tunnel fire dam displacement method, including as follows
Step：
Step 1: the first hole is made a call on old fire dam, installation gas concentration monitoring series probe and high-definition camera；
Step 2: connecting suction pump on the pipe of turning one's coat that old fire dam is reserved, water in gob area processing is carried out；
Step 3: making a call to the second hole at the middle part of old fire dam, the position area of new fire dam is determined according to camera head monitor picture, is led to
The second hole injection fast foaming material is crossed, temporary airtight wall is formed；
Step 4: after forming temporary airtight wall, tunnel is evacuated, until can't detect toxic and harmful gas or have
Malicious harmful gas concentration drops to the acceptable range of human body；
Step 5: removing old fire dam, air duct is installed above tunnel, the installation of air duct uses gradual mounting process, that is, pacifies
Two meters of air ducts are filled, fresh distinguished and admirable flushing a period of time tunnel then proceedes to install, move in circles successively；
Step 6: air duct is after installation is complete, to carrying out reinforcement supporting, and root within the scope of each 5 meters before and after the position area of new fire dam
Top plate and two are helped to reinforce using high molecular material according to situation；
Step 7: in the newly-built permanent new fire dam in the position area of new fire dam, width is 3.5 meters, front and back each 1m wide of steel wall, intermediate
It is tamped with loess, section covers tunnel, and cut depth is not less than 300mm, and sees that hard side resists stubbornly；Steel wall, width 1m, section covering
Tunnel, cut depth are not less than 300mm, and see that hard side resists stubbornly；A 3 writing brushes installation fire beam must be all stayed on permanent fire dam
Pipe, and reserved 3 writing brushes make water filling observation tube and this two pipes are extended to exploiting field material lane before permanent fire dam completion
Outside steel wall, two 3 writing brushes will be respectively protruding into permanent fire dam with each 1m other than inner and steel wall, and fire dam outer spout is stifled using disk is blocked up
Sternly.
Step 8: after permanent new fire dam completion, permanent new fire dam is reinforced using high molecular material, to permanent
The new outer tunnels 5m of fire dam and permanent new fire dam carry out tunneling boring whitewashing, and shotcrete thickness is not less than 100mm, covers tunneling boring,
It does not interspace.
The rear that permanent fire dam is located at newly-built temporary airtight wall is created, the two is at a distance of 5 ~ 6 meters.
The gas concentration monitoring series probe is YT-95H gas concentrations monitoring series probe, is purchased from Shenzhen Yuan Te
Science and Technology Ltd..YT-95H gas concentrations monitoring series probe includes methane（YT-95H-CH4）, carbon monoxide（YT-95H-
CO）, hydrogen sulfide（YT-95H-H2S）, nitrogen dioxide（YT-95H-NO2）, sulfur dioxide（YT-95H-SO2）, ammonia（YT-95H-
NH3）Etc. gas concentrations monitoring probe.
The selection of expanded material will prevent fires, waterproof and be easy to bond with roadway surrounding rock, enable to form new fire dam and enclose
Rock forms a closed entirety.Expanded material in the present invention preferably uses German foam chemical company（Schaum-Chemie
W. Bauer GmbH）The Isoschaum type rapid hardening foamed resins of research and development, this material are sent out by resin liquid solvent and liquid
Infusion two kinds of materials composition, material have the characteristics that construct that speed is fast, expansion rate is high, material utilization amount is few, with yielding property.
The beneficial effect comprise that：The tunnel fire dam displacement method of the present invention is safe and reliable, is easy in underground
Implement, is simple and efficient, and people can be damaged to avoid toxic and harmful gas, it is safe.
Description of the drawings
Fig. 1 is old fire dam and the position view in the first hole and the second hole that open up thereon；
Fig. 2 is schematic diagram when temporary airtight wall is built；
Fig. 3 be embodiment 1 on the south 8828 transportation roadway fire dam of village coal mine shift example floor map.
In figure, 1,3 cun of fire beam tube, 2,3 cun of water filling observation tubes, 3, temporary airtight wall, 4, old fire dam, 5, it is newly-built forever
Long fire dam, 6, the jet rod of spraying machine, 7, gas concentration monitoring series probe and high-definition camera, 8, expanded material injection
Machine, 9, display screen, the 10, first hole, the 11, second hole.
Specific implementation mode
Embodiment 1
Step 1: making a call to an aperture 10 in the top position of original old fire dam（First hole）, extract a certain amount of gas into
Promoting the circulation of qi body composition detection installs methane according to detection gas ingredient（YT-95H-CH4）, carbon monoxide（YT-95H-CO）, vulcanization
Hydrogen（YT-95H-H2S）, nitrogen dioxide（YT-95H-NO2）, sulfur dioxide（YT-95H-SO2）, ammonia（YT-95H-NH3）YT-
95H gas concentrations monitoring series probe.YT-95H gas concentrations monitoring series probe is a to be supervised online for twenty four hours
Survey environmental gas concentration, 12-36V DC power supplies power supply standard configuration three-wire system 4-20mA, RS485, relay signal output.Installation is high
Clear camera analyzes the case where solving closed portion within the walls according to camera head monitor video and gas concentration monitoring probe.YT-95H
Gas concentration monitoring series probe and camera are electrically connected with display 9.
Step 2: the case where being understood according to camera head monitor video and gas concentration monitoring probe analysis is constructed,
Suction pump is connected on the reserved pipe of turning one's coat of former fire dam, carries out water in gob area processing.
Step 3: making a call to the second hole 11 in the center of old fire dam 4, the position of new fire dam is determined according to camera head monitor picture
Set area（The position of new fire dam needs to be determined according to the displacement of practical fire dam）, the jet rod 6 of spraying machine is passed through second
Hole 12 passes through old fire dam 4 to enter tunnel, sprays fast foaming material, forms new temporary airtight wall（Newly-built temporary airtight wall
Front positioned at the position area of new fire dam, the two is at a distance of 5 ~ 6 meters）.
Step 4: after forming new temporary airtight wall 3, remove spraying machine 8, installation extraction gas apparatus to tunnel into
Row pumping, until can't detect toxic and harmful gas or toxic and harmful gas concentration drops to the acceptable range of human body.
Step 5: removing old fire dam 4, air duct is installed in tunnel upper right side, the installation of air duct is had to using progressive
Formula mounting process installs two meters of air ducts, fresh distinguished and admirable flushing a period of time tunnel then proceedes to install, move in circles successively.
In step 5, before removing old fire dam, the toxic and harmful gas between old fire dam 4 and temporary airtight wall 3 must reduce
To within the scope of human-acceptable, not so unremovable old fire dam 4.
Step 6: air duct is after installation is complete, according to the permanent closed wall displacement newly determined, before permanent closed wall displacement area
Reinforcement supporting is carried out within the scope of each 5 meters afterwards, and according to circumstances top plate and two is helped to reinforce using high molecular material.
Step 7: newly-built permanent fire dam 5, width is 3.5 meters, front and back each 1m wide of steel wall, and centre is tamped with loess, section
Tunnel is covered, cut depth is not less than 300mm, and sees that hard side resists stubbornly.Steel wall, width 1m, section cover tunnel, and cut depth is not
Less than 300mm, and see that hard side resists stubbornly.
Step 8: after permanent fire dam 5 completes, permanent fire dam is reinforced using high molecular material, to permanent close
It closes the outer tunnels 5m of wall and permanent fire dam carries out tunneling boring whitewashing, shotcrete thickness is not less than 100mm, covers tunneling boring, does not leave a blank
Gap.
Claims (6)
1. a kind of tunnel fire dam displacement method, it is characterised in that include the following steps：
Step 1: the first hole is made a call on old fire dam, installation gas concentration monitoring series probe and camera；
Step 2: connecting suction pump on the pipe of turning one's coat that old fire dam is reserved, water in gob area processing is carried out；
Step 3: making a call to the second hole at the middle part of old fire dam, the position area of new fire dam is determined according to camera head monitor picture, is led to
The second hole injection fast foaming material is crossed, temporary airtight wall is formed；
Step 4: after forming temporary airtight wall, tunnel is evacuated, until can't detect toxic and harmful gas or have
Malicious harmful gas concentration drops to the acceptable range of human body；
Step 5: removing old fire dam, air duct is installed above tunnel；
Step 6: air duct is after installation is complete, to carrying out reinforcement supporting within the scope of each 5 meters before and after the position area of new fire dam；
Step 7: in the newly-built permanent new fire dam in the position area of new fire dam.
2. fire dam displacement method in tunnel as described in claim 1, it is characterised in that：The permanent new fire dam width is 3.5
Rice, front and back each 1m wide of steel wall, centre are tamped with loess, and section covers tunnel, and cut depth is not less than 300mm, and see that hard side is hard
Top；Steel wall, width 1m, section cover tunnel, and cut depth is not less than 300mm, and see that hard side resists stubbornly.
3. fire dam displacement method in tunnel as described in claim 1, it is characterised in that：The gas concentration monitoring series, which is popped one's head in, is
YT-95H gas concentrations monitoring series probe, is purchased from Yuan Te Science and Technology Ltd.s of Shenzhen.
4. fire dam displacement method in tunnel as described in claim 1, it is characterised in that：Permanent new fire dam position in the step 7
In the rear of temporary airtight wall, the two is at a distance of 5 ~ 6 meters.
5. fire dam displacement method in tunnel as described in claim 1, it is characterised in that：The installation of air duct uses in the step 5
Gradual mounting process installs two meters of air ducts, fresh distinguished and admirable flushing a period of time tunnel then proceedes to install, recycle successively
Back and forth.
6. fire dam displacement method in tunnel as described in claim 1, it is characterised in that：The YT-95H gas concentrations monitoring series
Probe includes methane（YT-95H-CH4）, carbon monoxide（YT-95H-CO）, hydrogen sulfide（YT-95H-H2S）, nitrogen dioxide（YT-
95H-NO2）, sulfur dioxide（YT-95H-SO2）, ammonia（YT-95H-NH3）Gas concentration monitoring probe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810856619.0A CN108798782A (en) | 2018-07-31 | 2018-07-31 | A kind of tunnel fire dam displacement method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810856619.0A CN108798782A (en) | 2018-07-31 | 2018-07-31 | A kind of tunnel fire dam displacement method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108798782A true CN108798782A (en) | 2018-11-13 |
Family
ID=64078865
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810856619.0A Pending CN108798782A (en) | 2018-07-31 | 2018-07-31 | A kind of tunnel fire dam displacement method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108798782A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112627894A (en) * | 2020-12-23 | 2021-04-09 | 国能包头能源有限责任公司 | Underground closed wall construction method and closed wall |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6056638A (en) * | 1998-06-24 | 2000-05-02 | Jones; Ricky L. | Mine ventilation wall construction |
| CN106050302A (en) * | 2016-07-19 | 2016-10-26 | 河南理工大学 | Constructing system and method for coal mine permanent sealing wall |
| CN107387163A (en) * | 2017-09-14 | 2017-11-24 | 西安科技大学 | A kind of underworkings from walk fire dam system |
-
2018
- 2018-07-31 CN CN201810856619.0A patent/CN108798782A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6056638A (en) * | 1998-06-24 | 2000-05-02 | Jones; Ricky L. | Mine ventilation wall construction |
| CN106050302A (en) * | 2016-07-19 | 2016-10-26 | 河南理工大学 | Constructing system and method for coal mine permanent sealing wall |
| CN107387163A (en) * | 2017-09-14 | 2017-11-24 | 西安科技大学 | A kind of underworkings from walk fire dam system |
Non-Patent Citations (2)
| Title |
|---|
| 姚海飞;付伟;吴海军;郑忠亚;徐长富;: "整合矿井密闭墙启封技术研究及实践", 中国煤炭, no. 07, pages 97 - 100 * |
| 陈炎光等: "中国煤矿巷道围岩控制", 中国矿业大学出版社, pages: 486 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112627894A (en) * | 2020-12-23 | 2021-04-09 | 国能包头能源有限责任公司 | Underground closed wall construction method and closed wall |
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