CN104153597B - A kind of low floor building demolition method - Google Patents
A kind of low floor building demolition method Download PDFInfo
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- CN104153597B CN104153597B CN201410341659.3A CN201410341659A CN104153597B CN 104153597 B CN104153597 B CN 104153597B CN 201410341659 A CN201410341659 A CN 201410341659A CN 104153597 B CN104153597 B CN 104153597B
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Abstract
The invention belongs to building field, particularly relate to a kind of low floor building demolition method.nullThe present invention uses the body of wall at the ruggedized construction of acid liquid corrosion building corner and the body of wall on girder surface and makes inner steel bar expose，Then acid、Alkali liquor mutually corrodes and produces the intensity of heat of neutralization consumption reinforcing bar，Reduce the consumption of TNT，Blast finally by TNT destroys girder and the corner ruggedized construction of each floor of building，The bearing system making building self is destroyed，Making inwardly subsides under the gravity of himself weight crumbles，And drawing of protection network sets，Prevent from TNT from when removing building, causing rubble to splash to hurt sb.'s feelings，Improve the safety in work progress，In the present invention, method is simple，Work consuming rate is low，Only need tens of people can complete acid solution、The spraying operation of alkali liquor and the removing of rebar surface lime-ash，By TNT demolition blasting，Speed is fast、Efficiency is high，Protection network is protected，Operator safety coefficient is high.
Description
Technical field
The invention belongs to building field, particularly relate to a kind of low floor building demolition method.
Background technology
At present, in order to improve city look and feel and also to city of making rational planning for, the city of a lot of high speed developments needs the age relatively long, and the old building of facility is removed, such as villages within the city, tube-shaped apartment etc..Owing to its building age is more remote, its story height is low, density big, and bar material usage amount is bigger, prior art can only carry out collision by excavator or other machinery remove, not only efficiency is slow, and in demolishing process, dust drifts, resident living environment near long-time impact.
The most how to provide a kind of low floor building demolition method that speed of application is fast, labor intensity is low, be this area problem of meriting attention and studying.
Summary of the invention
It is an object of the invention to provide a kind of low floor building demolition method, the inventive method is simple, and work consuming rate is low, removes speed soon, and safety coefficient is high.
For solving above-mentioned technical problem, the technical solution used in the present invention is as follows:
A kind of low floor building demolition method, comprises the steps,
1) finding girder and the ruggedized construction of floor corner of each floor of building, the ruggedized construction surface of floor corner is carried out acid solution spraying 3-7 time, the time interval of adjacent twice acid solution spraying is 10-24 hour；After acid solution spraying, drill rod is used to peel off the surface lime-ash of ruggedized construction so that the inside reinforcing bar of ruggedized construction is exposed among air；
2) the aerial ruggedized construction reinforcing bar of exposure being carried out twice acid solution sprinkling, the time interval of twice acid solution sprinkling is 4-8 hour, after acid solution is sprayed, uses alkali liquor that ruggedized construction reinforcing bar is carried out twice sprinkling at once, and spraying time is spaced apart 1-3 hour；
3) to through the 2nd) ruggedized construction reinforcing bar after step processes shears, at reinforcing bar placed inside 30-50g TNT after shearing, is then collected at one by the lead-in wire of TNT at each floor；
4) the girder position of floor each to building carries out acid solution sprinkling, the site distribution that acid solution is sprayed is at the corner, surface of girder and central point, acid solution is sprayed the line at position and is square, then 50-100g TNT is laid at the position after acid solution is sprayed, and makes to lay on girder the lead-in wire and the 3rd of TNT) lead-in wire of step gained is collected at one；
5) outside the building steel column is vertically squeezed on ground, corner, and steel column height exceeds building 3-5m, uses protection network to connect adjacent steel column, and the mesh of protection network is rhombus net, and its width of mesh is 10cm2, then at the lead-in wire of the position up-igniting TNT apart from building 40-100m, building is removed under the explosive effect of TNT.
Preferably, described one low floor building demolition method, comprise the steps,
1) finding girder and the ruggedized construction of floor corner of each floor of building, the ruggedized construction surface of floor corner is carried out acid solution spraying 6 times, the time interval of adjacent twice acid solution spraying is 18 hours；After acid solution spraying, drill rod is used to peel off the surface lime-ash of ruggedized construction so that the inside reinforcing bar of ruggedized construction is exposed among air；
2) the aerial ruggedized construction reinforcing bar of exposure being carried out twice acid solution sprinkling, the time interval of twice acid solution sprinkling is 6 hours, after acid solution is sprayed, uses alkali liquor that ruggedized construction reinforcing bar is carried out twice sprinkling at once, and spraying time is spaced apart 2 hours；
3) to through the 2nd) ruggedized construction reinforcing bar after step processes shears, at reinforcing bar placed inside 40g TNT after shearing, is then collected at one by the lead-in wire of TNT at each floor；
4) the girder position of floor each to building carries out acid solution sprinkling, the site distribution that acid solution is sprayed is at the corner, surface of girder and central point, acid solution is sprayed the line at position and is square, then 80g TNT is laid at the position after acid solution is sprayed, and makes to lay on girder the lead-in wire and the 3rd of TNT) lead-in wire of step gained is collected at one；
5) outside the building steel column is vertically squeezed on ground, corner, and steel column height exceeds building 4m, uses protection network to connect adjacent steel column, and the mesh of protection network is rhombus net, and its width of mesh is 10cm2, then at the lead-in wire of the position up-igniting TNT apart from building 80m, building is removed under the explosive effect of TNT.
Preferably, described the 1st) step and the 4th) salpeter solution that acid solution is 2mol/L that used of step, the 2nd) soda bath that alkali liquor is 2mol/L that used of step.
The present invention compared with prior art, has the advantage that
1) using the body of wall at the ruggedized construction of acid liquid corrosion building corner and the body of wall on girder surface and make inner steel bar expose, then acid, alkali liquor are mutually corroded and produce the intensity of heat of neutralization consumption reinforcing bar, reduce the consumption of TNT；
2) draw protecting wire net of setting up defences, prevent TNT from when removing building, causing rubble to splash and hurt sb.'s feelings, improve the safety in work progress.
Detailed description of the invention
In order to make the purpose of the present invention, technical scheme and advantage clearer, below in conjunction with specific embodiment, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
Embodiment
1
1) finding girder and the ruggedized construction of floor corner of each floor of building, the ruggedized construction surface of floor corner is carried out acid solution spraying 3 times, the time interval of adjacent twice acid solution spraying is 10 hours；After acid solution spraying, drill rod is used to peel off the surface lime-ash of ruggedized construction so that the inside reinforcing bar of ruggedized construction is exposed among air；
2) the aerial ruggedized construction reinforcing bar of exposure being carried out twice acid solution sprinkling, the time interval of twice acid solution sprinkling is 4 hours, after acid solution is sprayed, uses alkali liquor that ruggedized construction reinforcing bar is carried out twice sprinkling at once, and spraying time is spaced apart 1 hour；
3) to through the 2nd) ruggedized construction reinforcing bar after step processes shears, at reinforcing bar placed inside 30g TNT after shearing, is then collected at one by the lead-in wire of TNT at each floor；
4) the girder position of floor each to building carries out acid solution sprinkling, the site distribution that acid solution is sprayed is at the corner, surface of girder and central point, acid solution is sprayed the line at position and is square, then 50g TNT is laid at the position after acid solution is sprayed, and makes to lay on girder the lead-in wire and the 3rd of TNT) lead-in wire of step gained is collected at one；
5) outside the building steel column is vertically squeezed on ground, corner, and steel column height exceeds building 3m, uses protection network to connect adjacent steel column, and the mesh of protection network is rhombus net, and its width of mesh is 10cm2, then at the lead-in wire of the position up-igniting TNT apart from building 40m, building is removed under the explosive effect of TNT.
1st) step and the 4th) salpeter solution that acid solution is 2mol/L that step is used, alkali liquor is the soda bath of 2mol/L.
Embodiment
2
1) finding girder and the ruggedized construction of floor corner of each floor of building, the ruggedized construction surface of floor corner is carried out acid solution spraying 7 times, the time interval of adjacent twice acid solution spraying is 24 hours；After acid solution spraying, drill rod is used to peel off the surface lime-ash of ruggedized construction so that the inside reinforcing bar of ruggedized construction is exposed among air；
2) the aerial ruggedized construction reinforcing bar of exposure being carried out twice acid solution sprinkling, the time interval of twice acid solution sprinkling is 8 hours, after acid solution is sprayed, uses alkali liquor that ruggedized construction reinforcing bar is carried out twice sprinkling at once, and spraying time is spaced apart 3 hours；
3) to through the 2nd) ruggedized construction reinforcing bar after step processes shears, at reinforcing bar placed inside 50g TNT after shearing, is then collected at one by the lead-in wire of TNT at each floor；
4) the girder position of floor each to building carries out acid solution sprinkling, the site distribution that acid solution is sprayed is at the corner, surface of girder and central point, acid solution is sprayed the line at position and is square, then 100g TNT is laid at the position after acid solution is sprayed, and makes to lay on girder the lead-in wire and the 3rd of TNT) lead-in wire of step gained is collected at one；
5) outside the building steel column is vertically squeezed on ground, corner, and steel column height exceeds building 5m, uses protection network to connect adjacent steel column, and the mesh of protection network is rhombus net, and its width of mesh is 10cm2, then at the lead-in wire of the position up-igniting TNT apart from building 100m, building is removed under the explosive effect of TNT.
1st) step and the 4th) salpeter solution that acid solution is 2mol/L that used of step, the 2nd) soda bath that alkali liquor is 2mol/L that used of step.
Embodiment
3
1) finding girder and the ruggedized construction of floor corner of each floor of building, the ruggedized construction surface of floor corner is carried out acid solution spraying 6 times, the time interval of adjacent twice acid solution spraying is 18 hours；After acid solution spraying, drill rod is used to peel off the surface lime-ash of ruggedized construction so that the inside reinforcing bar of ruggedized construction is exposed among air；
2) the aerial ruggedized construction reinforcing bar of exposure being carried out twice acid solution sprinkling, the time interval of twice acid solution sprinkling is 6 hours, after acid solution is sprayed, uses alkali liquor that ruggedized construction reinforcing bar is carried out twice sprinkling at once, and spraying time is spaced apart 2 hours；
3) to through the 2nd) ruggedized construction reinforcing bar after step processes shears, at reinforcing bar placed inside 40g TNT after shearing, is then collected at one by the lead-in wire of TNT at each floor；
4) the girder position of floor each to building carries out acid solution sprinkling, the site distribution that acid solution is sprayed is at the corner, surface of girder and central point, acid solution is sprayed the line at position and is square, then 80g TNT is laid at the position after acid solution is sprayed, and makes to lay on girder the lead-in wire and the 3rd of TNT) lead-in wire of step gained is collected at one；
5) outside the building steel column is vertically squeezed on ground, corner, and steel column height exceeds building 4m, uses protection network to connect adjacent steel column, and the mesh of protection network is rhombus net, and its width of mesh is 10cm2, then at the lead-in wire of the position up-igniting TNT apart from building 80m, building is removed under the explosive effect of TNT.
1st) step and the 4th) salpeter solution that acid solution is 2mol/L that used of step, the 2nd) soda bath that alkali liquor is 2mol/L that used of step.
The ultimate principle of the present invention and principal character and advantages of the present invention have more than been shown and described.Skilled person will appreciate that of the industry; the present invention is not restricted to the described embodiments; the principle that the present invention is simply described described in above-described embodiment and description; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements both fall within scope of the claimed invention.Claimed scope is defined by appending claims and equivalent thereof.
Claims (3)
1. one kind low floor building demolition method, it is characterised in that comprise the steps,
1) finding girder and the ruggedized construction of floor corner of each floor of building, the ruggedized construction surface of floor corner is carried out acid solution spraying 3-7 time, the time interval of adjacent twice acid solution spraying is 10-24 hour；After acid solution spraying, drill rod is used to peel off the surface lime-ash of ruggedized construction so that the inside reinforcing bar of ruggedized construction is exposed among air；
2) the aerial ruggedized construction reinforcing bar of exposure being carried out twice acid solution sprinkling, the time interval of twice acid solution sprinkling is 4-8 hour, after acid solution is sprayed, uses alkali liquor that ruggedized construction reinforcing bar is carried out twice sprinkling at once, and spraying time is spaced apart 1-3 hour；
3) to through the 2nd) ruggedized construction reinforcing bar after step processes shears, at reinforcing bar placed inside 30-50g TNT after shearing, is then collected at one by the lead-in wire of TNT at each floor；
4) the girder position of floor each to building carries out acid solution sprinkling, the site distribution that acid solution is sprayed is at the corner, surface of girder and central point, acid solution is sprayed the line at position and is square, then 50-100g TNT is laid at the position after acid solution is sprayed, and makes to lay on girder the lead-in wire and the 3rd of TNT) lead-in wire of step gained is collected at one；
5) outside the building steel column is vertically squeezed on ground, corner, and steel column height exceeds building 3-5m, uses protection network to connect adjacent steel column, and the mesh of protection network is rhombus net, and its width of mesh is 10cm2, then at the lead-in wire of the position up-igniting TNT apart from building 40-100m, building is removed under the explosive effect of TNT.
A kind of low floor building demolition method the most as claimed in claim 1, it is characterised in that comprise the steps,
1) finding girder and the ruggedized construction of floor corner of each floor of building, the ruggedized construction surface of floor corner is carried out acid solution spraying 6 times, the time interval of adjacent twice acid solution spraying is 18 hours；After acid solution spraying, drill rod is used to peel off the surface lime-ash of ruggedized construction so that the inside reinforcing bar of ruggedized construction is exposed among air；
2) the aerial ruggedized construction reinforcing bar of exposure being carried out twice acid solution sprinkling, the time interval of twice acid solution sprinkling is 6 hours, after acid solution is sprayed, uses alkali liquor that ruggedized construction reinforcing bar is carried out twice sprinkling at once, and spraying time is spaced apart 2 hours；
3) to through the 2nd) ruggedized construction reinforcing bar after step processes shears, at reinforcing bar placed inside 40g TNT after shearing, is then collected at one by the lead-in wire of TNT at each floor；
4) the girder position of floor each to building carries out acid solution sprinkling, the site distribution that acid solution is sprayed is at the corner, surface of girder and central point, acid solution is sprayed the line at position and is square, then 80g TNT is laid at the position after acid solution is sprayed, and makes to lay on girder the lead-in wire and the 3rd of TNT) lead-in wire of step gained is collected at one；
5) outside the building steel column is vertically squeezed on ground, corner, and steel column height exceeds building 4m, uses protection network to connect adjacent steel column, and the mesh of protection network is rhombus net, and its width of mesh is 10cm2, then at the lead-in wire of the position up-igniting TNT apart from building 80m, building is removed under the explosive effect of TNT.
A kind of low floor building demolition method the most as claimed in claim 1 or 2, it is characterised in that the 1st) step and the 4th) salpeter solution that acid solution is 2mol/L that used of step, the 2nd) soda bath that alkali liquor is 2mol/L that used of step.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410341659.3A CN104153597B (en) | 2014-07-18 | 2014-07-18 | A kind of low floor building demolition method |
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| CN201410341659.3A CN104153597B (en) | 2014-07-18 | 2014-07-18 | A kind of low floor building demolition method |
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| CN104153597A CN104153597A (en) | 2014-11-19 |
| CN104153597B true CN104153597B (en) | 2016-08-24 |
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| CN201410341659.3A Expired - Fee Related CN104153597B (en) | 2014-07-18 | 2014-07-18 | A kind of low floor building demolition method |
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| CN107419918B (en) * | 2017-07-27 | 2019-06-14 | 上海二十冶建设有限公司 | A kind of Historical Buildings periphery single-layer frame retains method for dismounting |
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| JP2006188913A (en) * | 2005-01-07 | 2006-07-20 | Toda Constr Co Ltd | Demolishing work execution method for outer wall of building |
| CN1936237A (en) * | 2006-10-19 | 2007-03-28 | 上海交通大学 | Electrifying dismounting method for steel reinforced concrete structure building |
| CN101936075A (en) * | 2010-08-23 | 2011-01-05 | 重庆城建控股(集团)有限责任公司 | Blasting method for dismantling frame structure building in situ |
| CN101956467A (en) * | 2010-08-23 | 2011-01-26 | 重庆城建控股(集团)有限责任公司 | Blasting method for disintegrating frame building in situ with low impact |
| CN102733621A (en) * | 2012-07-25 | 2012-10-17 | 贵州新联爆破工程有限公司 | Blasting demolition method of buildings with hollow wall body and brick-concrete structure |
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2014
- 2014-07-18 CN CN201410341659.3A patent/CN104153597B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1222619A (en) * | 1998-01-08 | 1999-07-14 | 殷剑明 | High-temperature pyrolysis method for dismantling concrete building |
| JP2006188913A (en) * | 2005-01-07 | 2006-07-20 | Toda Constr Co Ltd | Demolishing work execution method for outer wall of building |
| CN1936237A (en) * | 2006-10-19 | 2007-03-28 | 上海交通大学 | Electrifying dismounting method for steel reinforced concrete structure building |
| CN101936075A (en) * | 2010-08-23 | 2011-01-05 | 重庆城建控股(集团)有限责任公司 | Blasting method for dismantling frame structure building in situ |
| CN101956467A (en) * | 2010-08-23 | 2011-01-26 | 重庆城建控股(集团)有限责任公司 | Blasting method for disintegrating frame building in situ with low impact |
| CN102733621A (en) * | 2012-07-25 | 2012-10-17 | 贵州新联爆破工程有限公司 | Blasting demolition method of buildings with hollow wall body and brick-concrete structure |
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