CN104594950B - A kind of underground coal mine flexible spray temporary airtight wall and its construction method - Google Patents
A kind of underground coal mine flexible spray temporary airtight wall and its construction method Download PDFInfo
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- CN104594950B CN104594950B CN201510002249.0A CN201510002249A CN104594950B CN 104594950 B CN104594950 B CN 104594950B CN 201510002249 A CN201510002249 A CN 201510002249A CN 104594950 B CN104594950 B CN 104594950B
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- coal mine
- framing
- spray
- underground coal
- flexible
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- 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
A kind of underground coal mine flexible spray temporary airtight wall of the present invention and its construction method, are related to a kind of closed wall construction and its construction method for playing sealing function during coal production.A kind of under underground dynamic pressure change its purpose is to provide, crack resistence Anti-air-leakage ability is strong, security is good, the underground coal mine flexible spray temporary airtight wall that uses manpower and material resources sparingly and a kind of construction method for constructing fast and easily underground coal mine flexible spray temporary airtight wall.A kind of underground coal mine flexible spray temporary airtight wall of the present invention includes framing, the framing includes some wood point columns and some crossbeams that left and right is arranged in parallel, the metope being spliced into by polylith wallboard is installed on the framing, flexible waterproof coating is coated with the metope, the flexible waterproof coating is macromolecule emulsion and the mixing cured composition of inorganic powder two parts.
Description
Technical field
The present invention relates to a kind of wall and its construction method, is used to during coal production play more particularly to one kind close
The closed wall construction and its construction method of envelope effect.
Background technology
Underground coal mine temporary airtight wall construct be double lanes exploitations efficient colliery essential one in downhole production
Technology, divulges information in control, is played an important role during obstructing the pernicious gas such as goaf gas and carbon monoxide.Coal
Temporary airtight wall is constructed under mine usually constructs among the horizontal river of each coal column.The country is still without unified method, colliery at present
There is no specified in more detail in safety code yet.Traditional method has following several：(1) 50cm is stayed among the brick wall that thickness is 24cm
Space filling loess or other high molecular foam materials；(2) mortar spraying is carried out on brick wall surface, thickness is in 10cm or so；(3)
Plank in stud is put in wood or hangs up air duct fabric.The temporary airtight wall that these methods are constructed, which exists, to be changed and held by underground dynamic pressure
It is easy to crack to leak out, leak the defects of securities such as gas are not high, while it is more to expend material and manpower, man-hour, is not suitable with modernization
The development of high yield and high efficiency mine.
The content of the invention
The technical problem to be solved in the present invention is to provide one kind under underground dynamic pressure change, crack resistence Anti-air-leakage ability is strong,
The underground coal mine flexible spray temporary airtight wall and one kind that security is good, uses manpower and material resources sparingly construct fast and easily underground coal mine
The construction method of flexible spray temporary airtight wall.
A kind of underground coal mine flexible spray temporary airtight wall of the present invention, including framing, the framing include a left side
Some wood that the right side is arranged in parallel put columns and some crossbeams, and the wall being spliced into by polylith wallboard is provided with the framing
Face, is coated with flexible waterproof coating on the metope, the flexible waterproof coating is macromolecule emulsion and inorganic powder two parts
Mixing cured composition.
A kind of underground coal mine flexible spray temporary airtight wall of the present invention, wherein pressing mass fraction in the flexible waterproof coating
Inorganic powder including 1-2 parts of macromolecule emulsions and 1 part.
A kind of underground coal mine flexible spray temporary airtight wall of the present invention, wherein the macromolecule emulsion be acrylic emulsion,
One or more in VAE lotions, polychloroprene latex or styrene-acrylic emulsion.
A kind of underground coal mine flexible spray temporary airtight wall of the present invention, wherein the inorganic powder include portland cement and
One or both of sulphate aluminium cement, further includes silica flour, slag powders, rubber powder, cellulose ether, polymer fiber or silica flour
In one or more.
A kind of underground coal mine flexible spray temporary airtight wall of the present invention, wherein the wallboard is plank or lumber core.
A kind of underground coal mine flexible spray temporary airtight wall of the present invention, wherein the left and right ends of the crossbeam reach and construct
On the outside of frame, the part reached on the outside of framing is used to be inserted into the coal body of tunnel both sides to fix wall.
A kind of construction method of underground coal mine flexible spray temporary airtight wall of the present invention, comprises the following steps：
A) left and right is parallel between the coal body of the left and right sides in tunnel is provided with multiple wood point columns；
B) crossbeam is installed at the Along ent of wood point column, the crossbeam is connected with wood point column successively；
C) metope being spliced into by polylith wallboard is installed on the framing of wood point column and crossbeam composition；
D) using spray pump in metope surface spraying layer flexible water-repellent paint.
A kind of construction method of underground coal mine flexible spray temporary airtight wall of the present invention, wherein the flexible waterproof coating is
Macromolecule emulsion and the mixing cured composition of inorganic powder two parts, wherein including 1-2 parts of macromolecule emulsion and 1 by mass fraction
The inorganic powder of part.
A kind of construction method of underground coal mine flexible spray temporary airtight wall of the present invention, wherein the macromolecule emulsion is third
One or more in olefin(e) acid lotion, VAE lotions, polychloroprene latex or styrene-acrylic emulsion.
A kind of construction method of underground coal mine flexible spray temporary airtight wall of the present invention, wherein the inorganic powder includes silicon
One or both of acid salt cement and sulphate aluminium cement, it is fine to further include silica flour, slag powders, rubber powder, cellulose ether, polymer
One or more in dimension or silica flour.
A kind of underground coal mine flexible spray temporary airtight wall of the present invention and its construction method difference from prior art exist
Include the framing formed by wood point column and crossbeam in a kind of underground coal mine flexible spray temporary airtight wall of the present invention, in structure
The metope that wallboard composition is provided with frame is built, fire dam of the invention is simple in structure, it is possible to reduce the dosage of construction material, together
When be coated with metope by macromolecule emulsion and the mixing cured flexible waterproof coating formed of inorganic powder two parts, Ci Zhongrou
Property water-repellent paint cure after existing stronger adhesive strength, tensile strength, and there is excellent extension property, its elongation percentage can be with
30%~200% is reached, can effectively solve the problems, such as that ore deposit buckling causes metope secondary leak out caused by cracking to be revealed with gas,
Improve the security of worker's underground work.A kind of construction method operation letter of underground coal mine flexible spray temporary airtight wall of the present invention
Just, cycle that fire dam constructs can be shortened, used manpower and material resources sparingly, and reduce fire dam later stage cracking maintenance times.
Below in conjunction with the accompanying drawings to the present invention a kind of underground coal mine flexible spray temporary airtight wall make and its construction method into
One step explanation.
Brief description of the drawings
Fig. 1 is a kind of structure diagram of underground coal mine flexible spray temporary airtight wall of the present invention.
Embodiment
As shown in Figure 1, embodiment 1, a kind of underground coal mine flexible spray temporary airtight wall of the present invention includes framing, structure
Building frame includes wood point column 5, and the present embodiment selects four wood point columns 5, and the width and thickness of wood point column 5 are 10cm, and length is slightly larger than
Head-room.For four wood point columns 5 uniformly between the top plate 1 and bottom plate 6 in tunnel, wood point column 5 top is installed on top plate 1
In groove, and clamped with chock 7.Crossbeam 4 is installed on wood point column 5, the present embodiment selects two crossbeams 4, crossbeam 4 it is wide and thick
Respectively 10cm and 4cm, length are slightly larger than span length.Crossbeam 4 is installed at two trisection points of wood point column 5 respectively, crossbeam 4
It is connected successively with four wood point columns 5.The left and right ends of crossbeam 4 reach the outside of framing, and are inserted at left and right sides of tunnel
Coal body 3 among.The metope being spliced into by polylith wallboard 2 is installed, wallboard 2 selects plank or lumber core on framing.Wall
The flexible water-repellent paint of multilayer is sprayed on face, a time thickness of spraying is generally 1~2mm, and last coating thickness is 3~6mm, and table
Face is substantially smooth, uniform.Flexible waterproof coating is macromolecule emulsion and the mixing cured composition of inorganic powder two parts.Wherein high score
Sub- lotion is the one or more in acrylic emulsion, VAE lotions, polychloroprene latex or styrene-acrylic emulsion.Inorganic powder includes silicic acid
One or both of salt cement and sulphate aluminium cement, further include silica flour, slag powders, rubber powder, cellulose ether, polymer fiber
Or the one or more in silica flour.Include 1-2 parts of macromolecule emulsion and 1 part of nothing by mass fraction in flexible waterproof coating
Machine powder, the mixing situation of different proportion can make final flexible waterproof coating have different elongation percentage.In the present embodiment
Select 1 part of macromolecule emulsion and 1 part of inorganic powder is mixing cured forms, wherein macromolecule emulsion selects acrylic emulsion, powder
Portland cement is selected, its elongation percentage is 30% after mixing.
A kind of construction method of underground coal mine flexible spray temporary airtight wall of the present invention comprises the following steps：
A) left and right is parallel between the coal body 3 of the left and right sides in tunnel is provided with multiple wood point columns 5；
B) crossbeam 4 is installed at the Along ent of wood point column 5, crossbeam 4 is connected with wood point column 5 successively, forms framing；
C) metope being spliced into by polylith wallboard 2 is installed on framing；
D) using spray pump in metope surface spraying layer flexible water-repellent paint.
Table 1 is embodiment 2-12, wherein embodiment 2 and 3 difference from Example 1 of embodiment be macromolecule emulsion and
The component of inorganic powder is different；Embodiment 4-6 and embodiment 1-3 differences are between macromolecule emulsion and inorganic powder
Quality proportion is different, and macromolecule emulsion is different with the constituent of inorganic powder；Embodiment 7-12 and embodiment 1-6 differences
It is that the quality proportion between macromolecule emulsion and inorganic powder is different, the constituent of macromolecule emulsion and inorganic powder is not
Together, the content of each component is different in inorganic powder.
Table 1
Embodiment described above is only that the preferred embodiment of the present invention is described, not to the model of the present invention
Enclose and be defined, on the premise of design spirit of the present invention is not departed from, technical side of the those of ordinary skill in the art to the present invention
The various modifications and improvement that case is made, should all fall into the protection domain that claims of the present invention determines.
Claims (4)
- A kind of 1. underground coal mine flexible spray temporary airtight wall, it is characterised in that：Including framing, the framing includes Some wood that left and right is arranged in parallel put columns and some crossbeams, are provided with what is be spliced into by polylith wallboard on the framing Metope, is coated with flexible waterproof coating on the metope, the flexible waterproof coating is macromolecule emulsion and inorganic powder two Divide mixing cured composition, pressing mass fraction in the flexible waterproof coating includes acrylic emulsion or polychloroprene latex or VAE lotions 2 Part and 0.4 part of portland cement, 0.3 part of sulphate aluminium cement, 0.02 part of polymer fiber, 0.2 part of silica flour, silica flour 0.05 Part, the mixing cured composition of inorganic powder two parts of 0.03 part of composition of rubber powder, the flexible waterproof coating coating thickness is each Spray 1~2mm, final 3~6mm of spray layer thickness.
- A kind of 2. underground coal mine flexible spray temporary airtight wall according to claim 1, it is characterised in that：The wallboard is Plank or lumber core.
- A kind of 3. underground coal mine flexible spray temporary airtight wall according to claim 1, it is characterised in that：The crossbeam Left and right ends are reached on the outside of framing, and the part reached on the outside of framing is used for the coal body for being inserted into tunnel both sides Middle fixed wall.
- A kind of 4. construction method of underground coal mine flexible spray temporary airtight wall, it is characterised in that：Comprise the following steps：A) left and right is parallel between the coal body of the left and right sides in tunnel is provided with multiple wood point columns；B) crossbeam is installed at the Along ent of wood point column, the crossbeam is connected with wood point column successively；C) metope being spliced into by polylith wallboard is installed on the framing of wood point column and crossbeam composition；D) using spray pump in metope surface spraying layer flexible water-repellent paint, the flexible waterproof coating for macromolecule emulsion and The mixing cured composition of inorganic powder two parts, wherein including acrylic emulsion or 2 parts of polychloroprene latex or VAE lotions by mass fraction With 0.4 part of portland cement, 0.3 part of sulphate aluminium cement, 0.02 part of polymer fiber, 0.2 part of silica flour, 0.05 part of silica flour, 0.03 part of mixing cured composition of rubber powder, the flexible spray water-repellent paint coating thickness are 1~2mm of spraying every time, are finally sprayed 3~6mm of layer thickness, surfacing, uniformly.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510002249.0A CN104594950B (en) | 2015-01-04 | 2015-01-04 | A kind of underground coal mine flexible spray temporary airtight wall and its construction method |
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| CN201510002249.0A CN104594950B (en) | 2015-01-04 | 2015-01-04 | A kind of underground coal mine flexible spray temporary airtight wall and its construction method |
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| CN104594950B true CN104594950B (en) | 2018-04-13 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106673562A (en) * | 2017-02-16 | 2017-05-17 | 西安科技大学 | Inhibited mortar emulsion for fire prevention and extinguishment in coal mine and spraying method thereof |
| CN108101469A (en) * | 2017-12-12 | 2018-06-01 | 河南金拇指防水科技股份有限公司 | A kind of implementation of cement base spraying rapid hardening aqueous waterproofing paint layer |
| CN110410132B (en) * | 2019-08-06 | 2021-03-02 | 陕西煤业化工技术研究院有限责任公司 | Air leakage preventing process for reserving narrow coal pillars |
| CN113356927B (en) * | 2021-07-20 | 2023-10-20 | 国能神东煤炭集团有限责任公司 | Underground fireproof explosion-proof airtight isolation system and construction method thereof |
| CN113880508A (en) * | 2021-09-07 | 2022-01-04 | 山西晋煤集团技术研究院有限责任公司 | Material for quickly sealing easily weathered surrounding rock of coal mine bottom suction roadway and using method thereof |
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| US8737526B2 (en) * | 2010-06-30 | 2014-05-27 | Qualcomm Incorporated | Predistortion of complex modulated waveform |
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