CN103244145A - Pressure resistance and pressure relief bricks for coal mine underground seal wall and construction method of seal wall - Google Patents
Pressure resistance and pressure relief bricks for coal mine underground seal wall and construction method of seal wall Download PDFInfo
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- CN103244145A CN103244145A CN2013102045360A CN201310204536A CN103244145A CN 103244145 A CN103244145 A CN 103244145A CN 2013102045360 A CN2013102045360 A CN 2013102045360A CN 201310204536 A CN201310204536 A CN 201310204536A CN 103244145 A CN103244145 A CN 103244145A
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- fire dam
- pressure release
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Abstract
The invention discloses pressure resistance and pressure relief bricks for a coal mine underground seal wall and a construction method of the seal wall. The pressure resistance and pressure relief bricks are formed by ceramsite and bounding agent; the bounding agent is formed by multi-iso-cyanogens phenol resin and polyester polyol; a weight ratio of the iso-cyanogens phenol resin and the polyester polyol is 1: 0.8 to 1: 1.2; and a weight ratio of the ceramsite and the bounding agent is 1: 1 to 1: 1.5. The construction method of the seal wall comprises adding a sand and rock bedding layer to a catching groove of the bottom face of a tunnel which is under the seal wall and performing construction above the sand and rock bedding layer with one or two layers of pressure resistance and pressure relief bricks; constructing a main wall body of the seal wall with red bricks; and constructing the connecting positions of the lateral side and the top face of the tunnel and the seal wall with one or two layers of pressure resistance and pressure relief bricks. When pressure is performed on the tunnel, the pressure resistance and pressure relief bricks well absorb the pressure due to the capability of contracting and deforming to be a half; accordingly the service life of the seal wall is prolonged; maintaining times of the seal wall are reduced; and the pressure resistance and pressure relief bricks can be reused to reduce the construction cost and maintenance cost of the seal wall.
Description
Technical field
The present invention relates to the building materials technical field of underground air door fire dam or fire dam, be specifically related to fire dam resistance to compression pressure release brick and building method thereof under a kind of coal mine.
Background technology
China is one of country that the coal deposits amount is the abundantest in the world.China uses the with a long history of coal, for any country in the world can't be obtained.The reserves of China's coal have been verified and have been approximately 6,000 hundred million tons.Coal occupies important status in national economy.And mine ventilation is the key link of Safety of Coal Mine Production, and the survey showed that according to many coal mining accident, and the serious disasters and accidents that the colliery takes place generally all have close contacting with mine ventilation system.Therefore, setting up stable, reliable, simple ventilation system seems and is even more important.The mine ventilation facility is the mine part that constitutes ventilation system (comprising air door, airtight, air crossing, adjusting air regulator etc.), and it is to guarantee whole circuits and the pedestrains safety unimpeded and ventilation structure that arrange of mine from air intake to return air.Simultaneously fire dam is the indispensable ingredient of mine ventilation, and down-hole fire dam kind is more, according to the effect difference of fire dam, can be divided into mainly that airtight and blind lane, goaf is airtight, fire wall, airtight sluicing windbreak, airtight tunnel pump drainage gas wall etc.The effect difference of these walls, structure and quality specifications are also inequality.
What of inleakage are the quality of fire dam not only be related to, and are related to the quality of whole coalmine ventilation quality, and are improper if airtight material, mechanism and situation of building are selected, can make fire dam by pressure break, crush, cause major accident.For a long time, fire dam all is to use common brick to build a wall, perhaps use coal dust ash masonry walls, perhaps build a wall at materials such as the process adding timber of building a wall, method originally in use, anti-pressure ability, time about half a year, common brick begins fracture, and airtight maintenance capacity is big, obturation effect is bad, and enclosed material can't be reused.
Summary of the invention
The purpose of this invention is to provide fire dam resistance to compression pressure release brick and building method thereof under a kind of coal mine, prolong the application life of fire dam, reduce the airtight inleakage of air door, reduce the maintenance cost of air door sealing, improve the mine ventilation effect, improve the mine safety level of production.
Realize above-mentioned purpose, the invention provides following technical scheme:
Fire dam resistance to compression pressure release brick under the coal mine is characterized in that: the polyurathamc that the use deflection is big, decrement is big and haydite synthesize resistance to compression pressure release brick and replace building materials such as original common brick, concrete brick.The dimensions of resistance to compression pressure release brick is as follows: 500mm * 250mm * 100mm and 240mm * 115mm * 53mm, and it has certain compressive property, and indeformable under the situation of pressure at 1.9kN, deflection can reach 48.2% under the situation of 45kN.Resistance to compression pressure release brick can arrange the husky hole of some mistakes in building-up process, or mixes intensity and deformability that other material changes resistance to compression pressure release brick.When press in the tunnel, the tunnel transmits pressure to earlier at resistance to compression pressure release brick, resistance to compression pressure release brick is not before other building materials takes place to break, just begin to deform, having absorbed the tunnel presses, make building materials fracture phenomena can not occur, airtightly also can not occur leaking out because of the breaking of building materials.
Fire dam resistance to compression pressure release brick is made up of haydite and adhesive under a kind of coal mine disclosed in this invention, and wherein adhesive is made up of many isocyanides phenol fat and PEPA; The weight ratio of isocyanide phenol fat and PEPA consists of 1:0.8 ~ 1:1.2, and is preferred: 1:1; The weight ratio of haydite and adhesive consists of 1:1 ~ 1:1.5, preferred 1:1.2.
Fire dam is to be built by laying bricks or stones by fire dam resistance to compression pressure release brick and common brick under the coal mine to form under a kind of coal mine disclosed in this invention, the building method of this fire dam is: bottom surface, tunnel catching groove increases the sandstone bed course below fire dam, uses 1-2 layer resistance to compression pressure release brick to build by laying bricks or stones at the sandstone bed course; The main wall body and function common brick of fire dam is built by laying bricks or stones, in the side, tunnel and end face and fire dam junction use 1-2 layer resistance to compression pressure release brick to build by laying bricks or stones.Use the method not only to guarantee the intensity of fire dam, and when pressing in the tunnel, the ore deposit is pressed and is at first passed to resistance to compression pressure release brick, makes other building materials be protected.
Resistance to compression pressure release brick of the present invention is compared with conventional building materials, and it is as follows to have characteristics:
This brick has certain yield strength, but its yield strength can effectively have been protected conventional building materials guaranteeing to make the tunnel press off-load again on the fire dam intensity based less than conventional building materials.Prolong the application life of fire dam, reduce maintenance times, totally reduced masonry wall and built cost by laying bricks or stones.
This brick is in light weight, conveniently builds transportation by laying bricks or stones.
This brick can be reused, and saves the overall cost of building fire dam by laying bricks or stones.
Description of drawings
Fig. 1 is the masonry construction schematic diagram of air door fire dam.
Fig. 2 is the structural representation of resistance to compression pressure release brick with holes.
Fig. 3 is the metallograph of the resistance to compression pressure release brick of embodiment 3 preparations.
The 1-air door, 2-common brick, the resistance to compression pressure release brick of the big expansion and contraction of 3-, 4-perforate high strength resistance to compression pressure release brick, 5-sand stone bed course.
The specific embodiment
Now further specify with the summary of the invention of following embodiment.
The composition (Kg) of resistance to compression pressure release brick:
Isocyanide phenol fat 100
PEPA 80
Haydite 180
After above raw material mixed, make resistance to compression pressure release brick.
The composition (Kg) of resistance to compression pressure release brick:
Isocyanide phenol fat 100
PEPA 120
Haydite 147
After above raw material mixed, make resistance to compression pressure release brick.
The composition (Kg) of resistance to compression pressure release brick:
Isocyanide phenol fat 100
PEPA 100
Haydite 167
After above raw material mixed, make resistance to compression pressure release brick.
Now the resistance to compression pressure release brick with embodiment 3 preparations is example, the air door fire dam is built by laying bricks or stones be described further:
Wide 4.2 meters high 4.2 meters of this air door fire dam drift sections of living in, fire dam thickness is 500mm.Manufacturing specification is 16 of the resistance to compression pressure release bricks with holes of 500mm * 250mm * 100mm, as fire dam bottom surface resistance to compression pressure release brick.The manufacturing specification is 500mm * 250mm * 100mm with 100 of the synthetic resistance to compression pressure release bricks of haydite and adhesive, the resistance to compression pressure release brick that joins as side, tunnel and end face and fire dam.
Building method is: open the dark lateral trench of the wide 500mm of 500mm in the bottom, tunnel, use the sandstone filling groove to the compacting of 250mm place, use concrete or yellow mud to build resistance to compression pressure release brick with holes by laying bricks or stones.Fixed throttle is built common brick by laying bricks or stones on this basis, builds by laying bricks or stones with the place of tunnel handing-over and uses the resistance to compression pressure release brick that synthesizes with haydite and adhesive to build by laying bricks or stones.Build by laying bricks or stones until fire dam and to finish, with yellow mud or compo that the fire dam two sides is floating at last.
Claims (7)
1. fire dam resistance to compression pressure release brick under the coal mine, it is characterized in that: this resistance to compression pressure release brick is made up of haydite and adhesive, and wherein adhesive is made up of many isocyanides phenol fat and PEPA.
2. fire dam resistance to compression pressure release brick under the coal mine as claimed in claim 1, it is characterized in that: the weight ratio of isocyanide phenol fat and PEPA consists of 1:0.8 ~ 1:1.2.
3. fire dam resistance to compression pressure release brick under the coal mine as claimed in claim 2, it is characterized in that: the weight ratio of isocyanide phenol fat and PEPA consists of 1:1.
4. fire dam resistance to compression pressure release brick under the coal mine as claimed in claim 1, it is characterized in that: the weight ratio of haydite and adhesive consists of 1:1 ~ 1:1.5.
5. fire dam resistance to compression pressure release brick under the coal mine as claimed in claim 4, it is characterized in that: the weight ratio of haydite and adhesive consists of 1:1.2.
6. fire dam under the coal mine, it is characterized in that: this fire dam is to form by building by laying bricks or stones as fire dam resistance to compression pressure release brick and common brick under the described coal mine of each claim of claim 1-5.
7. fire dam under the coal mine as claimed in claim 6, it is characterized in that: the building method of this fire dam is: bottom surface, tunnel catching groove increases the sandstone bed course below fire dam, uses 1-2 layer resistance to compression pressure release brick to build by laying bricks or stones at the sandstone bed course; The main wall body and function common brick of fire dam is built by laying bricks or stones, in the side, tunnel and end face and fire dam junction use 1-2 layer resistance to compression pressure release brick to build by laying bricks or stones.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310204536.0A CN103244145B (en) | 2013-05-29 | 2013-05-29 | Underground coal mine fire dam resistance to compression pressure release brick and building method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310204536.0A CN103244145B (en) | 2013-05-29 | 2013-05-29 | Underground coal mine fire dam resistance to compression pressure release brick and building method thereof |
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| CN103244145A true CN103244145A (en) | 2013-08-14 |
| CN103244145B CN103244145B (en) | 2016-04-20 |
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| CN201310204536.0A Expired - Fee Related CN103244145B (en) | 2013-05-29 | 2013-05-29 | Underground coal mine fire dam resistance to compression pressure release brick and building method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103726874A (en) * | 2013-12-30 | 2014-04-16 | 李红恩 | Closed wall sealing method for underground coal mine |
| CN107387162A (en) * | 2017-06-29 | 2017-11-24 | 山东科技大学 | A kind of tunnel hermatic door, tunnel brattice and preparation method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1463941A (en) * | 2002-06-04 | 2003-12-31 | 沈忠善 | Multifunctional lightweight high-strength unburned brick |
| CN1690008A (en) * | 2004-04-30 | 2005-11-02 | 宁波荣山新型材料有限公司 | Heat-insulating mortar for external wall of building |
| CN1837124A (en) * | 2006-04-24 | 2006-09-27 | 郝天成 | Light thermal-insulating acid-resistant concrete block for flue and method for producing same |
| JP4425570B2 (en) * | 2003-06-10 | 2010-03-03 | 鹿島建設株式会社 | Construction method of underground impermeable walls |
| CN201539037U (en) * | 2009-06-19 | 2010-08-04 | 孔彬 | Anti-seismic light type wall brick |
| CN102745945A (en) * | 2012-07-12 | 2012-10-24 | 湖南文象炭基环保材料股份有限公司 | Facing tile and production process thereof |
-
2013
- 2013-05-29 CN CN201310204536.0A patent/CN103244145B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1463941A (en) * | 2002-06-04 | 2003-12-31 | 沈忠善 | Multifunctional lightweight high-strength unburned brick |
| JP4425570B2 (en) * | 2003-06-10 | 2010-03-03 | 鹿島建設株式会社 | Construction method of underground impermeable walls |
| CN1690008A (en) * | 2004-04-30 | 2005-11-02 | 宁波荣山新型材料有限公司 | Heat-insulating mortar for external wall of building |
| CN1837124A (en) * | 2006-04-24 | 2006-09-27 | 郝天成 | Light thermal-insulating acid-resistant concrete block for flue and method for producing same |
| CN201539037U (en) * | 2009-06-19 | 2010-08-04 | 孔彬 | Anti-seismic light type wall brick |
| CN102745945A (en) * | 2012-07-12 | 2012-10-24 | 湖南文象炭基环保材料股份有限公司 | Facing tile and production process thereof |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103726874A (en) * | 2013-12-30 | 2014-04-16 | 李红恩 | Closed wall sealing method for underground coal mine |
| CN103726874B (en) * | 2013-12-30 | 2016-06-08 | 王昆 | A kind of airtight body of wall method for blocking of underground coal mine |
| CN107387162A (en) * | 2017-06-29 | 2017-11-24 | 山东科技大学 | A kind of tunnel hermatic door, tunnel brattice and preparation method thereof |
| CN107387162B (en) * | 2017-06-29 | 2020-02-18 | 山东科技大学 | Roadway sealing door, roadway air wall and manufacturing method thereof |
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| Publication number | Publication date |
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| CN103244145B (en) | 2016-04-20 |
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