CN104533522A - Rapid safe construction method and device for bag poured airtight wall and anti-explosion wall - Google Patents
Rapid safe construction method and device for bag poured airtight wall and anti-explosion wall Download PDFInfo
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- CN104533522A CN104533522A CN201410820518.XA CN201410820518A CN104533522A CN 104533522 A CN104533522 A CN 104533522A CN 201410820518 A CN201410820518 A CN 201410820518A CN 104533522 A CN104533522 A CN 104533522A
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- 238000010276 construction Methods 0.000 title claims abstract description 23
- 238000004880 explosion Methods 0.000 title abstract description 9
- 239000003063 flame retardant Substances 0.000 claims abstract description 93
- 239000004570 mortar (masonry) Substances 0.000 claims abstract description 20
- 238000002955 isolation Methods 0.000 claims abstract description 8
- 238000007599 discharging Methods 0.000 claims abstract description 5
- 239000000463 material Substances 0.000 claims description 33
- 239000007789 gas Substances 0.000 claims description 24
- 238000005187 foaming Methods 0.000 claims description 18
- 239000007788 liquid Substances 0.000 claims description 15
- 239000011268 mixed slurry Substances 0.000 claims description 15
- 238000004079 fireproofing Methods 0.000 claims description 13
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 11
- 239000002002 slurry Substances 0.000 claims description 8
- 229910052757 nitrogen Inorganic materials 0.000 claims description 7
- 239000011343 solid material Substances 0.000 claims description 6
- 230000015572 biosynthetic process Effects 0.000 claims description 5
- 239000006260 foam Substances 0.000 claims description 5
- 239000002775 capsule Substances 0.000 claims description 4
- 206010011732 Cyst Diseases 0.000 claims description 3
- 238000004026 adhesive bonding Methods 0.000 claims description 3
- 208000031513 cyst Diseases 0.000 claims description 3
- LENZDBCJOHFCAS-UHFFFAOYSA-N tris Chemical compound OCC(N)(CO)CO LENZDBCJOHFCAS-UHFFFAOYSA-N 0.000 claims description 3
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 claims description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 abstract description 8
- 238000003823 mortar mixing Methods 0.000 abstract 2
- 238000009423 ventilation Methods 0.000 abstract 1
- 239000007787 solid Substances 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 239000000428 dust Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 231100000331 toxic Toxicity 0.000 description 2
- 230000002588 toxic effect Effects 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000005273 aeration Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000034994 death Effects 0.000 description 1
- 231100000517 death Toxicity 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000002085 irritant Substances 0.000 description 1
- 231100000021 irritant Toxicity 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000010412 perfusion Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000007569 slipcasting Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000003643 water by type Substances 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
- E21F17/107—Dams, e.g. for ventilation inflatable
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)
- Building Environments (AREA)
Abstract
The invention discloses a rapid safe construction method for a bag poured type airtight wall and an anti-explosion wall. The rapid safe construction method includes the following steps that a flame-retardant bag is machined, and multiple small holes are formed in the bag in advance; the flame-retardant bag is installed inside a tunnel; the discharging port of a mortar feeding pipe is formed inside the flame-retardant bag, and liquefied mixed mortar is fed into the mortar feeding pipe; sufficient pouring is performed inside the flame-retardant bag, and after the mortar is solidified, the isolation airtight wall is formed. The invention further discloses a construction device for the bag poured airtight wall and the anti-explosion wall. The device comprises the flame-retardant bag, the mortar feeding pipe and a mortar mixing and conveying device, the outlet of the mortar mixing and conveying device is connected with the flame-resistant bag through the mortar feeding pipe in a communicated mode, and the small holes for ventilation and mortar leakage are formed in the two sides and the top wall of the flame-retardant bag respectively. The mode that the flame-retardant bag is filled with the mortar, and the mortar is rapidly solidified and formed is adopted for rapidly, efficiently and safely constructing the isolation airtight wall and the anti-explosion wall, and compared with a traditional construction mode, the rapid safe construction method has the advantages of being obviously safe and efficient.
Description
Technical field
The present invention relates to construction method and the device of a kind of fire dam and blast wall, particularly relate to fast and safely construction method and the device of a kind of down-hole utricule filling type fire dam and blast wall.
Background technology
In mine, particularly often can there is the accidents such as various fire, Gas Outburst, gas and dust explosion and water burst gushing water in coal mine.In order to prevent and rescue these disasters, fast shut-off is just needed to be correlated with tunnel, make fire gases, methane gas, toxic and harmful and the dust that blast produces, a large amount of waters etc. are stopped by packing, thus the generation of disaster prevention or reduce the injures and deaths and loss that even elimination disaster accident causes.
The various fire dams adopting airtight mode mainly to utilize masonry, cement, sandbag and plank etc. to construct at present both at home and abroad, comprise general fire dam and blast wall.The relatively common fire dam of anti-flame proof fire dam is abundant, can withstand certain explosion wave.Also have the method for much constructing fire dam fast in addition, such as utilize and construct temporary airtight wall stop flue gas to air bag fast aeration, utilize expanded material fast pouring to form fire dam etc.These methods of constructing fire dam meet the requirement of fire dam to a certain extent or under certain condition, but also come with some shortcomings.Such as utilize masonry to construct fire dam, speed of particularly constructing when explosion-proof fire dam is slow, needs a large amount of personnel to carry out transporting material and construction.Airtightly general all compare hazardous environment and the time period carries out in rescue and relief work etc. owing to constructing, bring the risk of personal injury therefore to a large amount of constructor.Although the airtight construction of gasbag-type is very fast, but due to roadway shape irregular of mine, rough surface in tunnel is uneven, also have many cable pipelines etc. in tunnel simultaneously, gasbag-type is airtight often can not better enclosing tunnel, fire gases or explosion gas by airtight, can be damaged airtight outside personnel.In addition, gasbag-type is airtight because air bag volume is often at tens cubic metres to more than 100 cubic metres, its surface area is between tens to one or two hundred square metre, its tightness is difficult to be guaranteed, therefore such airtight life period is short, can not do forever airtight, even can not meet the needs of long period rescue and relief work; Such is airtight is simultaneously that main body is formed owing to being air bag, does not possess opposing explosion wave, the pressure of water burst gushing water and the high temperature action of fire generation, therefore has larger application limitation.
Utilizing foaming kind material directly to build and forming fire dam is the new technology grown up recent years, there is feature comparatively fast, but also come with some shortcomings, such as build must personnel to approach the construction of fire dam long period be abnormally dangerous and be subject to material itself and discharge the impact of irritant gas, such material is fluent material before foaming forms solid simultaneously, be not easy to the fire dam of building into rule, lot of materials runs off bottom tunnel wastes lot of materials, more seriously this material will ftracture when building in a large number, be easy to formation to leak out passage, this material is formed in solid process and will produce amount of heat in addition, due to the reason of expanding with heat and contract with cold, water and build up wall back wall and will slowly shrink in dozens of hours, the fire dam top of building is made can not fully to touch top, tunnel, its the right and left and navigation channel wall can form larger crack, if reach airtight preferably, just need repeatedly to build and process top and crack, so just do not reach the requirement of rapidly and efficiently safety.
Summary of the invention
Object of the present invention is just to provide to solve the problem a kind of less material can reach rapid sealing effect and can connects the utricule filling type fire dam on top and the fast and safely construction method of blast wall and device fast.
The present invention is achieved through the following technical solutions above-mentioned purpose:
A fast and safely construction method for utricule filling type fire dam and blast wall, comprises the following steps:
(1) process a fire-retardant utricule with fire proofing, the position that this fire-retardant utricule contacts with wall offers multiple aperture in advance;
(2) in the tunnel that needs construct isolation fire dam and blast wall, fire-retardant utricule is installed;
(3) discharging opening of slurry-conveying tube is placed in fire-retardant utricule, input in feed pipe for mortar and to be expected by foaming A and foaming B expects the liquid mixed slurry that mixes and quick-hardening forms solid material, in the process, operative liquid mixed slurry to be flowed out between fire-retardant utricule and wall by part aperture before curing and gluing solidifies, and makes fire-retardant utricule and wall close adhesion;
(4) foam A material and foaming B expect that the liquid mixed slurry mixed fully pours into and is cured to full capsule in fire-retardant utricule, make the solid material in fire-retardant utricule and fire-retardant utricule formation by fire-retardant utricule limit shape and with the close-connected isolation fire dam of wall and blast wall.
As preferably, in described step (1), the width of fire-retardant utricule and be highly a bit larger tham width and the height in tunnel, the length of fire-retardant utricule needs the 0.3-2 doubly left and right for tunnel radial section height according to airtight and flame proof; Fire-retardant utricule is fixedly installed in tunnel by the fixed band of corner bottom it.
In described step (2), the diameter of aperture is not more than 2mm.
In described step (3), foaming A material and foaming B material are respectively the PPG and vulcabond that add fire retardant, or adopt similar material modified.
Fire-retardant utricule is by fire proofing as flame retardant fabric is made, and the density of described fire proofing is not substantially revealed with liquid mixed slurry and is limited.
In described step (3) and step (4), while grouting, in fire-retardant utricule, send into compressed nitrogen or compressed air by tracheae.
The fast and safely building device of a kind of utricule filling type fire dam and blast wall, comprise fire-retardant utricule, feed pipe for mortar, slurries mixing and conveying device, the mixing of described slurries is connected by described feed pipe for mortar and described fire-retardant utricule with the outlet of conveying device, the both sides of described fire-retardant utricule and top cyst wall is respectively equipped with multiple for the ventilative aperture with spillage.
As preferably, described fast and safely building device also comprises tracheae and compressed gas source, and the outlet of described compressed gas source is connected by described tracheae and described fire-retardant utricule, and the gas in described compressed gas source is nitrogen or air.
Described fire-retardant utricule is made by fire proofing, and the density of described fire proofing is not substantially revealed with liquid mixed slurry and is limited.
The diameter of the aperture on described fire-retardant utricule is not more than 2mm; The corner, bottom of described fire-retardant utricule is respectively equipped with fixed band.
Beneficial effect of the present invention is:
The present invention adopts and long-range for the expanded material of fire-retardant low heating being fed into is reached the object of rapidly and efficiently constructing safely isolation fire dam or blast wall with the mode in the fire-retardant utricule of tunnel size coupling, compare tradition and construct mode, there is significant safe, efficient advantage, be embodied in:
(1) due to have fire-retardant utricule specification expanded material form the shape of solid, just can reach the effect of rapid sealing with relatively less material, top can be connect fast especially, not only save cost, the more important thing is the time of saving, namely reduce operating risk;
(2) owing to there being the stop standardization role of fire-retardant utricule, expanded material can only form solid in fire-retardant utricule, even if when expanded material relatively large application formation solid is due to thermal expansion generation cracking situation, crack shutoff can be fallen by follow-up expanded material at once, and the phenomenon that fluent material draws ditch to run away to open space can not occur;
(3) owing to there being fire-retardant utricule standardization role, as long as fixing a little bottom fire-retardant utricule, just can more remote in fire-retardant utricule with certain flow filling expanded material, such constructor just can be in a comparatively safe position, than with other conventional method must the long period to construct the operation of fire dam position safer, because deathtrap is compared often in the position constructing fire dam, that is the personnel utilizing the present invention to construct fire dam are only the positions being in fire dam when laying fire-retardant utricule, and its time is very short;
(4) employing is blown into compressed nitrogen or compressed-air actuated mode while fire-retardant capsule perfusion in vivo expanded material, the solid material of formation is cooled fast, thus the shrinkage reducing fire dam enables fire dam better contact top, tunnel, arrives the object of good enclosing tunnel;
(5) thickness of the coefficient of foaming of expanded material and airtight body of wall can be regulated to meet the requirement of the explosion-proof of fire dam, shock wave resistance and hydraulic pressure.
Accompanying drawing explanation
Fig. 1 is the perspective view of the fast and safely building device of utricule filling type fire dam of the present invention and blast wall.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described:
Because fast and safely construction method of the present invention preferably can use fast and safely building device of the present invention, so be first specifically described the structure of fast and safely building device of the present invention below:
As shown in Figure 1, the fast and safely building device of utricule filling type fire dam of the present invention and blast wall, comprise fire-retardant utricule 1, feed pipe for mortar 5, slurries mixing and conveying device 8, tracheae 6 and compressed gas source 11, fire-retardant utricule 1 is made by the cloth of fire proofing as having anti-flaming function, the density of described fire proofing is not substantially revealed with liquid mixed slurry and is limited, and the corner, bottom of fire-retardant utricule 1 is respectively equipped with fixed band 7; Slurries mixing is connected by feed pipe for mortar 5 and fire-retardant utricule 1 with the outlet of conveying device 8, the discharging opening 4 of feed pipe for mortar 5 is placed in fire-retardant utricule 1, the both sides of fire-retardant utricule 1 and top cyst wall are respectively equipped with multiple for aperture 2 that is ventilative and spillage, the diameter of aperture 2 is not more than 2mm, the outlet of compressed gas source 11 is connected by tracheae 6 and fire-retardant utricule 1, the gas outlet 3 of tracheae 6 is placed in fire-retardant utricule 1, and the gas in compressed gas source 11 is nitrogen or air.
Below in conjunction with Fig. 1, the fast and safely construction method of utricule filling type fire dam of the present invention and blast wall is specifically described:
Described fast and safely construction method comprises the following steps:
(1) process a fire-retardant utricule 1 with fire proofing, the position that this fire-retardant utricule 1 contacts with wall offers multiple aperture being not more than 2mm for diameter that is ventilative and spillage in advance;
(2) in the tunnel (not shown) that needs construct isolation fire dam and blast wall, fire-retardant utricule 1 is installed, the width of fire-retardant utricule 1 and be highly a bit larger tham width and the height in tunnel, the length of fire-retardant utricule 1 is 0.3-2 times of tunnel radial section height, specifically determine according to the actual requirements, fire-retardant utricule 1 is fixedly installed in tunnel by the fixed band 7 of corner bottom it, can be fixed by nail, also can by as fixing in stone, fragment of brick compacting with weight;
(3) discharging opening 4 of slurry-conveying tube 5 and the gas outlet 3 of a tracheae 6 are placed in fire-retardant utricule 1, with conveying device 8, the A that foams is expected that 10 (preferably adding the PPG of fire retardant) and the B that foams expect that 9 (preferably adding the vulcabond of fire retardant) mix and obtain liquid mixed slurry with slurries mixing, feed pipe for mortar 5 is sent in liquid mixed slurry pressurization and enters the interior also quick-hardening of fire-retardant utricule 1 and form solid material, meanwhile, Compressed Gas is sent into tracheae 6 as nitrogen or air and is entered in fire-retardant utricule 1 by compressed gas source 11; In the process, in fire-retardant utricule 1, original air is discharged by part aperture 2 and grouting is carried out smoothly, operative liquid mixed slurry to be flowed out between fire-retardant utricule 1 and wall by part aperture 2 before curing and gluing solidifies, and makes fire-retardant utricule 1 and wall close adhesion;
(4) foam A material 10 and the liquid mixed slurries that mix of foaming B material 9 fully pour into and are cured to full capsule in fire-retardant utricule 1, the solid size in fire-retardant utricule and fire-retardant utricule 1 is formed jointly by fire-retardant utricule 1 limit shape and with the close-connected fire dam of wall and blast wall.Concrete grouting amount is determined according to the size of fire-retardant utricule 1 and slurries coefficient of foaming, generally exceedes more than 1.1 times that calculate and form solid volume; If this fire dam Main Function stops toxic and harmful, the coefficient of foaming of injection material is the bigger the better, and thickness of wall body is greater than 0.3 times of head-room; If this fire dam is used for stop and gushes out water body, the coefficient of foaming of injection material is advisable to be no more than 10 times, and thickness of wall body must be over 2 meters or be greater than 0.5 times of head-room; If this body of wall is blast wall, the coefficient of foaming of injection material is less than 5 times, and thickness of wall body is greater than 5 meters.
In early stage processing procedure, the bottom of fire-retardant utricule 1 is fixed on by fixed band 7 and needs to construct airtight or anti-explosion wall position and after connecting feed pipe for mortar 5 tracheae 6, installation personnel leaves fast, in the comparatively far away and region of safety, slip casting carried out to fire-retardant utricule 1 and pass into the operation of gas, to guarantee safety simultaneously.
Above-described embodiment is preferred embodiment of the present invention; it is not the restriction to technical solution of the present invention; as long as without the technical scheme that creative work can realize on the basis of above-described embodiment, all should be considered as falling within the scope of the rights protection of patent of the present invention.
Claims (10)
1. a fast and safely construction method for utricule filling type fire dam and blast wall, is characterized in that: comprise the following steps:
(1) process a fire-retardant utricule with fire proofing, the position that this fire-retardant utricule contacts with wall offers multiple aperture in advance;
(2) in the tunnel that needs construct isolation fire dam and blast wall, fire-retardant utricule is installed;
(3) discharging opening of slurry-conveying tube is placed in fire-retardant utricule, input in feed pipe for mortar and to be expected by foaming A and foaming B expects the liquid mixed slurry that mixes and quick-hardening forms solid material, in the process, operative liquid mixed slurry to be flowed out between fire-retardant utricule and wall by part aperture before curing and gluing solidifies, and makes fire-retardant utricule and wall close adhesion;
(4) foam A material and foaming B expect that the liquid mixed slurry mixed fully pours into and is cured to full capsule in fire-retardant utricule, make the solid material in fire-retardant utricule and fire-retardant utricule formation by fire-retardant utricule limit shape and with the close-connected isolation fire dam of wall and blast wall.
2. the fast and safely construction method of utricule filling type fire dam according to claim 1 and blast wall, it is characterized in that: in described step (1), the width of fire-retardant utricule and be highly a bit larger tham width and the height in tunnel, the length of fire-retardant utricule needs the 0.3-2 doubly left and right for tunnel radial section height according to airtight and flame proof; Fire-retardant utricule is fixedly installed in tunnel by the fixed band of corner bottom it.
3. the fast and safely construction method of utricule filling type fire dam according to claim 1 and blast wall, is characterized in that: in described step (2), the diameter of aperture is not more than 2mm.
4. the fast and safely construction method of utricule filling type fire dam according to claim 1 and blast wall, is characterized in that: in described step (3), and foaming A material and foaming B material are respectively the PPG and vulcabond that add fire retardant.
5. the utricule filling type fire dam according to claim 1-4 and the fast and safely construction method of blast wall, is characterized in that: fire-retardant utricule is made by fire proofing, and the density of described fire proofing is not substantially revealed with liquid mixed slurry and is limited.
6. the fast and safely construction method of utricule filling type fire dam according to claim 1 and blast wall, it is characterized in that: in described step (3) and step (4), while grouting, in fire-retardant utricule, send into compressed nitrogen or compressed air by tracheae.
7. the fast and safely building device of a utricule filling type fire dam and blast wall, it is characterized in that: comprise fire-retardant utricule, feed pipe for mortar, slurries mixing and conveying device, the mixing of described slurries is connected by described feed pipe for mortar and described fire-retardant utricule with the outlet of conveying device, the both sides of described fire-retardant utricule and top cyst wall is respectively equipped with multiple for the ventilative aperture with spillage.
8. the fast and safely building device of utricule filling type fire dam according to claim 7 and blast wall, it is characterized in that: described fast and safely building device also comprises tracheae and compressed gas source, the outlet of described compressed gas source is connected by described tracheae and described fire-retardant utricule, and the gas in described compressed gas source is nitrogen or air.
9. the fast and safely building device of utricule filling type fire dam according to claim 7 and blast wall, is characterized in that: described fire-retardant utricule is made by fire proofing, and the density of described fire proofing is not substantially revealed with liquid mixed slurry and is limited.
10. the utricule filling type fire dam according to claim 7 or 9 and the fast and safely building device of blast wall, is characterized in that: the diameter of the aperture on described fire-retardant utricule is not more than 2mm; The corner, bottom of described fire-retardant utricule is respectively equipped with fixed band.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410820518.XA CN104533522A (en) | 2014-12-25 | 2014-12-25 | Rapid safe construction method and device for bag poured airtight wall and anti-explosion wall |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410820518.XA CN104533522A (en) | 2014-12-25 | 2014-12-25 | Rapid safe construction method and device for bag poured airtight wall and anti-explosion wall |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105736046A (en) * | 2016-02-25 | 2016-07-06 | 北京瑞诺安科新能源技术有限公司 | Coal mine underground sealed wall body and construction method thereof |
| CN108035772A (en) * | 2018-01-23 | 2018-05-15 | 中煤科工集团西安研究院有限公司 | The quick floodgate wall walling method of mine and its equipment |
| CN109184789A (en) * | 2018-11-15 | 2019-01-11 | 徐州和盛矿业科技有限公司 | A kind of quick vertical mold device of fire dam and construction method |
| CN110094233A (en) * | 2019-05-05 | 2019-08-06 | 西安科技大学 | A kind of coal spontaneous combustion flame range energy-absorbing venting of dust explosion Combined sealing device and its construction technology |
| CN110107354A (en) * | 2019-05-30 | 2019-08-09 | 安徽建筑大学 | A kind of quick self-built movable water lock gate wall of tunnelling gushing water |
| CN111206959A (en) * | 2020-01-02 | 2020-05-29 | 贵州工程应用技术学院 | Explosion-proof airtight gasbag of coal mine tunnel |
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Application publication date: 20150422 |