CN107386120A - A kind of method for filling arcading slab bridge air bubble mix light-textured soil - Google Patents
A kind of method for filling arcading slab bridge air bubble mix light-textured soil Download PDFInfo
- Publication number
- CN107386120A CN107386120A CN201710627641.3A CN201710627641A CN107386120A CN 107386120 A CN107386120 A CN 107386120A CN 201710627641 A CN201710627641 A CN 201710627641A CN 107386120 A CN107386120 A CN 107386120A
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- arcading
- slab bridge
- air bubble
- mix light
- textured soil
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D4/00—Arch-type bridges
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/20—Concrete, stone or stone-like material
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- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
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Abstract
The invention discloses a kind of method for filling arcading slab bridge air bubble mix light-textured soil, comprise the following steps：(1) foaming is handled：Prepare bubble population；(2) mix：Bubble population is passed through into mud, stirs, obtains air bubble mix light-textured soil；(3) pour：Built-in fitting is set in arcading slab bridge template, air bubble mix light-textured soil is poured into the mold using pumping line using the symmetrical mode in layering point hole, it is poured into simultaneously in mould at the both ends in the symmetrical hole of arcading slab bridge or so, and when construction area is constructed each time, each layer of construction thickness is 30~80cm, the operation that pours next time is just carried out after final set is poured, pumping line outlet is with pouring face keep level in casting process；(4) conserve.The method applied in the present invention can reduce arch ring pressure, reduce the dead load thrust of adjacent holes, that is, mitigate arch ring for arch ring pressure and whole bridge weight, and reduce the requirement for bearing capacity to basis.
Description
【Technical field】
It is more particularly to a kind of to be used to fill arcading slab bridge bubble mixing light the invention belongs to air bubble mix light-textured soil field
The method of soil.
【Background technology】
Air bubble mix light-textured soil is the novel light fill material that last decade grows up, because the material has lightweight
The excellent spies such as independence, good application property, durability and thermal insulation after property, intensity controllability, high fluidity and solidification
Property, general more application is banketed antifreeze in Soft Ground, the cold frozen earth roadbed heat-insulation and heat-preservation in area and the platform back of the body in Geotechnical Engineering
Swollen and widening of subgrade etc., it is less in the Project case of arcading slab bridge hogback filling.Air bubble mix light-textured soil is bright by laboratory test
The really physical mechanics of air bubble mix light-textured soil and road characteristic, it is mainly reflected in quick construction, automatic closely knit, short time limit
With to the advantage such as traffic impact is small, it is domestic at present carry out is directed to air bubble mix light-textured soil performance study, be to change in road mostly
Carry out what is completed in extension project, highway.And air bubble mix light-textured soil is applied less on arcading slab bridge, bubble mixing is light
Matter soil will be undoubtedly the construction Difficulties for needing primary study in the construction of arcading slab bridge as arch fill, and achievement in research is to even
The detail design of arch bar bridge has good reference function, to promoting bridge construction technology to have positive meaning, economic benefit
Also it is very notable.Therefore, upper application prospect of the air bubble mix light-textured soil in bridge structure is studied, for air bubble mix light-textured soil
Application there is vast promotional value.
【The content of the invention】
It is an object of the invention to provide a kind of method for filling arcading slab bridge air bubble mix light-textured soil, including foaming
The step such as handle, mix, pour and conserve, the method applied in the present invention can reduce arch ring pressure, reduce adjacent holes
Dead load thrust, that is, mitigate arch ring for arch ring pressure and whole bridge weight, and reduce the requirement for bearing capacity to basis.
The present invention is for problem present in existing neutralization technique, there is provided one kind is light for filling the mixing of arcading slab bridge bubble
The method of matter soil, comprises the following steps：
(1) foaming is handled：To be 1 by weight：After 39 foaming agent and water is well mixed, it is put into foam device, presses
Compressed air is passed through according to 30L/min condition, it is 50 ± 2g/m to obtain foam density3Bubble population；
(2) mix：Count in parts by weight, be passed through 500~700 parts of bubbles into 100 parts of mud at 10~15 DEG C
Group, while 10~30min is stirred with 100~300r/min speed, obtain wet density≤6.5kN/m3With fluidity be 180 ±
20mm air bubble mix light-textured soil；
(3) pour：Built-in fitting is set in arcading slab bridge template, divides the symmetrical mode in hole will using pumping line using layering
Air bubble mix light-textured soil pours into the mold, and is poured into simultaneously in mould at the both ends in the symmetrical hole of arcading slab bridge or so, and
When construction area is constructed each time, each layer of construction thickness is 30~80cm, is just carried out down after final set is poured
Once pour operation, pumping line outlet is with pouring face keep level in casting process；
(4) conserve：After the template dismounting in mould, face sealed plastic bag is being poured, is being 20 ± 2 DEG C, humidity in temperature
To conserve 28d under conditions of 85~90 degree, you can obtain the foamed concrete material conserved.
In the present invention, as further explanation, the hole described in step (3) is by arch springing, some hogbacks and arcading slab bridge
The sealing area that plane is formed；Described hogback is located at the opposite end of described arch springing respectively.
In the present invention, as further explanation, the aperture of foam is in the bubble population described in step (1) or step (2)
0.5~1mm.
In the present invention, as further explanation, the pressure when foam device described in step (1) works is 0.5MPa.
In the present invention, as further explanation, the frothing percentage of the foaming agent described in step (1) is 20 times.
In the present invention, as further explanation, volume≤400m of the mould described in step (3)3。
In the present invention, do not poured as further explanation, step (3) during pouring by the way of injection.
The invention has the advantages that：
1. the present invention is mixed bubble using pumping line using the symmetrical mode in layering point hole when filling arcading slab bridge template
Close the technological means that pours into the mold of light soil, transmitting portions load action power can be disperseed, mitigate arch ring for arch ring pressure and
The pressure of whole bridge weight, add the security of arcading slab bridge.The technological means that the present invention is symmetrically filled using point hole, can make
The stress equalization of arcading slab bridge, avoid the generation for the phenomenon that arcading slab bridge is uneven, abutment is unstable.The present invention additionally uses point
The technological means of layer construction, makes the height of foamed concrete material adjusted, and then makes the arch ring pressure controllable of arcading slab bridge,
Mitigate the pressure to arch ring.
2. air bubble mix light-textured soil of the present invention have pipe arrangement pumping, pouring construction point take up space it is minimum, pour
There is high fluidity when building and can solidify at once, be not required to cal rolling or vibrate etc. advantage after having poured, reach easy construction and
Closely knit effect can be backfilled.In civil engineering, to lead to not backfill closely knit, formation underground because working space is excessively narrow and small
Cavity and the periphery of Extra-Deep Foundation Pit seepage under cavity, pipeline pack, useless hole cavity, lava cavity, building cavity, transition slab at bridge head
The solution of the problems such as space provides a kind of new technological means.
3. air bubble mix light-textured soil of the present invention have effect play it is Lightness, solidification after independence, intensity can
Modulability and construction convenience, the technical economic benefit that can be brought, and the social benefit that the superior feature of environmental protection is brought.
【Brief description of the drawings】
Fig. 1 is a kind of flow chart for being used to fill the method for arcading slab bridge air bubble mix light-textured soil of the present invention.
【Embodiment】
Embodiment 1：
A kind of method for filling arcading slab bridge air bubble mix light-textured soil, comprise the following steps：
(1) foaming is handled：To be 1 by weight：After the foaming agent and water that 39 frothing percentage is 20 times are well mixed, it is put into
In foam device, pressure when setting foam device work is 0.5MPa, is passed through compressed air according to 30L/min condition, obtains
Aperture to foam is 0.5~1mm and foam density is 50g/m3Bubble population；
(2) mix：Count in parts by weight, water intaking gray scale is that 0.55 portland cement and water stir into mud, so
It is passed through 500 parts of bubble populations into 100 parts of mud at 10 DEG C afterwards, while 10min is stirred with 100r/min speed, obtains wet appearance
Weight is 6.5kN/m3With the air bubble mix light-textured soil that fluidity is 180mm；
(3) pour：Built-in fitting is set in arcading slab bridge template, divides the symmetrical mode in hole will using pumping line using layering
Air bubble mix light-textured soil pours into the mold, and it is 400m to be poured into volume simultaneously at the both ends in the symmetrical hole of arcading slab bridge or so3
Mould in, and when construction area is constructed each time, each layer of construction thickness is 30cm, after final set is poured
The operation that pours next time is just carried out, pumping line outlet is with pouring face keep level in casting process；Described hole be by arch springing,
The sealing area that some hogbacks and arcading slab bridge plane are formed；Described hogback is respectively positioned at relative the two of described arch springing
End；
(4) conserve：By in mould template dismounting after, pouring face sealed plastic bag, temperature be 20 DEG C, humidity 85
28d is conserved under conditions of degree, you can obtain the foamed concrete material conserved.
Through examining, the compression strength of the obtained foamed concrete material conserved is 1.63Mpa.
Embodiment 2：
A kind of method for filling arcading slab bridge air bubble mix light-textured soil, comprise the following steps：
(1) foaming is handled：To be 1 by weight：After the foaming agent and water that 39 frothing percentage is 20 times are well mixed, it is put into
In foam device, pressure when setting foam device work is 0.5MPa, is passed through compressed air according to 30L/min condition, obtains
Aperture to foam is 0.5~1mm and foam density is 48g/m3Bubble population；
(2) mix：Count in parts by weight, water intaking gray scale is that 0.58 portland cement and water stir into mud, so
It is passed through 550 parts of bubble populations into 100 parts of mud at 11 DEG C afterwards, while 18min is stirred with 150r/min speed, obtains wet appearance
Weight is 6.2kN/m3With the air bubble mix light-textured soil that fluidity is 160mm；
(3) pour：Built-in fitting is set in arcading slab bridge template, divides the symmetrical mode in hole will using pumping line using layering
Air bubble mix light-textured soil pours into the mold, and it is 380m to be poured into volume simultaneously at the both ends in the symmetrical hole of arcading slab bridge or so3
Mould in, and when construction area is constructed each time, each layer of construction thickness is 30cm, after final set is poured
The operation that pours next time is just carried out, pumping line outlet is with pouring face keep level in casting process；Described hole be by arch springing,
The sealing area that some hogbacks and arcading slab bridge plane are formed；Described hogback is respectively positioned at relative the two of described arch springing
End；
(4) conserve：By in mould template dismounting after, pouring face sealed plastic bag, temperature be 18 DEG C, humidity 86
28d is conserved under conditions of degree, you can obtain the foamed concrete material conserved.
Through examining, the compression strength of the obtained foamed concrete material conserved is 1.69Mpa.
Embodiment 3：
A kind of method for filling arcading slab bridge air bubble mix light-textured soil, comprise the following steps：
(1) foaming is handled：To be 1 by weight：After the foaming agent and water that 39 frothing percentage is 20 times are well mixed, it is put into
In foam device, pressure when setting foam device work is 0.5MPa, is passed through compressed air according to 30L/min condition, obtains
Aperture to foam is 0.5~1mm and foam density is 49g/m3Bubble population；
(2) mix：Count in parts by weight, water intaking gray scale is that 0.61 portland cement and water stir into mud, so
It is passed through 600 parts of bubble populations into 100 parts of mud at 14 DEG C afterwards, while 25min is stirred with 200r/min speed, obtains wet appearance
Weight is 6.1kN/m3With the air bubble mix light-textured soil that fluidity is 170mm；
(3) pour：Built-in fitting is set in arcading slab bridge template, divides the symmetrical mode in hole will using pumping line using layering
Air bubble mix light-textured soil pours into the mold, and it is 400m to be poured into volume simultaneously at the both ends in the symmetrical hole of arcading slab bridge or so3
Mould in, and when construction area is constructed each time, each layer of construction thickness is 40cm, after final set is poured
The operation that pours next time is just carried out, pumping line outlet is with pouring face keep level in casting process；Described hole be by arch springing,
The sealing area that some hogbacks and arcading slab bridge plane are formed；Described hogback is respectively positioned at relative the two of described arch springing
End；
(4) conserve：By in mould template dismounting after, pouring face sealed plastic bag, temperature be 19 DEG C, humidity 87
28d is conserved under conditions of degree, you can obtain the foamed concrete material conserved.
Through examining, the compression strength of the obtained foamed concrete material conserved is 1.70Mpa.
Embodiment 4：
A kind of method for filling arcading slab bridge air bubble mix light-textured soil, comprise the following steps：
(1) foaming is handled：To be 1 by weight：After the foaming agent and water that 39 frothing percentage is 20 times are well mixed, it is put into
In foam device, pressure when setting foam device work is 0.5MPa, is passed through compressed air according to 30L/min condition, obtains
Aperture to foam is 0.5~1mm and foam density is 51g/m3Bubble population；
(2) mix：Count in parts by weight, water intaking gray scale is that 0.61 portland cement and water stir into mud, so
It is passed through 630 parts of bubble populations into 100 parts of mud at 12 DEG C afterwards, while 20min is stirred with 230r/min speed, obtains wet appearance
Weight is 6.4kN/m3With the air bubble mix light-textured soil that fluidity is 195mm；
(3) pour：Built-in fitting is set in arcading slab bridge template, divides the symmetrical mode in hole will using pumping line using layering
Air bubble mix light-textured soil pours into the mold, and it is 390m to be poured into volume simultaneously at the both ends in the symmetrical hole of arcading slab bridge or so3
Mould in, and when construction area is constructed each time, each layer of construction thickness is 60cm, after final set is poured
The operation that pours next time is just carried out, pumping line outlet is with pouring face keep level in casting process；Described hole be by arch springing,
The sealing area that some hogbacks and arcading slab bridge plane are formed；Described hogback is respectively positioned at relative the two of described arch springing
End；
(4) conserve：By in mould template dismounting after, pouring face sealed plastic bag, temperature be 21 DEG C, humidity 88
28d is conserved under conditions of degree, you can obtain the foamed concrete material conserved.
Through examining, the compression strength of the obtained foamed concrete material conserved is 1.68Mpa.
Embodiment 5：
A kind of method for filling arcading slab bridge air bubble mix light-textured soil, comprise the following steps：
(1) foaming is handled：To be 1 by weight：After the foaming agent and water that 39 frothing percentage is 20 times are well mixed, it is put into
In foam device, pressure when setting foam device work is 0.5MPa, is passed through compressed air according to 30L/min condition, obtains
Aperture to foam is 0.5~1mm and foam density is 51g/m3Bubble population；
(2) mix：Count in parts by weight, water intaking gray scale is that 0.63 portland cement and water stir into mud, so
It is passed through 630 parts of bubble populations into 100 parts of mud at 14 DEG C afterwards, while 22min is stirred with 200r/min speed, obtains wet appearance
Weight is 6.5kN/m3With the air bubble mix light-textured soil that fluidity is 185mm；
(3) pour：Built-in fitting is set in arcading slab bridge template, divides the symmetrical mode in hole will using pumping line using layering
Air bubble mix light-textured soil pours into the mold, and it is 400m to be poured into volume simultaneously at the both ends in the symmetrical hole of arcading slab bridge or so3
Mould in, and when construction area is constructed each time, each layer of construction thickness is 70cm, after final set is poured
The operation that pours next time is just carried out, pumping line outlet is with pouring face keep level in casting process；Described hole be by arch springing,
The sealing area that some hogbacks and arcading slab bridge plane are formed；Described hogback is respectively positioned at relative the two of described arch springing
End；
(4) conserve：By in mould template dismounting after, pouring face sealed plastic bag, temperature be 21 DEG C, humidity 87
28d is conserved under conditions of degree, you can obtain the foamed concrete material conserved.
Through examining, the compression strength of the obtained foamed concrete material conserved is 1.68Mpa.
Embodiment 6：
A kind of method for filling arcading slab bridge air bubble mix light-textured soil, comprise the following steps：
(1) foaming is handled：To be 1 by weight：After the foaming agent and water that 39 frothing percentage is 20 times are well mixed, it is put into
In foam device, pressure when setting foam device work is 0.5MPa, is passed through compressed air according to 30L/min condition, obtains
Aperture to foam is 0.5~1mm and foam density is 52g/m3Bubble population；
(2) mix：Count in parts by weight, water intaking gray scale is that 0.65 portland cement and water stir into mud, so
It is passed through 700 parts of bubble populations into 100 parts of mud at 15 DEG C afterwards, while 30min is stirred with 300r/min speed, obtains wet appearance
Weight is 6.3kN/m3With the air bubble mix light-textured soil that fluidity is 200mm；
(3) pour：Built-in fitting is set in arcading slab bridge template, divides the symmetrical mode in hole will using pumping line using layering
Air bubble mix light-textured soil pours into the mold, and it is 390m to be poured into volume simultaneously at the both ends in the symmetrical hole of arcading slab bridge or so3
Mould in, and when construction area is constructed each time, each layer of construction thickness is 80cm, after final set is poured
The operation that pours next time is just carried out, pumping line outlet is with pouring face keep level in casting process；Described hole be by arch springing,
The sealing area that some hogbacks and arcading slab bridge plane are formed；Described hogback is respectively positioned at relative the two of described arch springing
End；
(4) conserve：By in mould template dismounting after, pouring face sealed plastic bag, temperature be 22 DEG C, humidity 90
28d is conserved under conditions of degree, you can obtain the foamed concrete material conserved.
Through examining, the compression strength of the obtained foamed concrete material conserved is 1.69Mpa.
Described above is the detailed description for the present invention preferably possible embodiments, but embodiment is not limited to this hair
Bright patent claim, the equal change completed or modification change under the technical spirit suggested by all present invention, all should belong to
Cover the scope of the claims in the present invention.
Claims (6)
- A kind of 1. method for filling arcading slab bridge air bubble mix light-textured soil, it is characterised in that：Comprise the following steps：(1) foaming is handled：To be 1 by weight：After 39 foaming agent and water is well mixed, it is put into foam device, according to 30L/min condition is passed through compressed air, and it is 50 ± 2g/m to obtain foam density3Bubble population；(2) mix：Count in parts by weight, be passed through 500~700 parts of bubble populations into 100 parts of mud at 10~15 DEG C, together When 10~30min stirred with 100~300r/min speed, obtain wet density≤6.5kN/m3It is 180 ± 20mm with fluidity Air bubble mix light-textured soil；(3) pour：Built-in fitting is set in arcading slab bridge template, divides the symmetrical mode in hole to use pumping line by bubble using layering Mix light-textured soil pours into the mold, and is poured into simultaneously in mould at the both ends in the symmetrical hole of arcading slab bridge or so, and each When secondary construction area is constructed, each layer of construction thickness is 30~80cm, is just carried out next time after final set is poured Pour operation, pumping line outlet is with pouring face keep level in casting process；(4) conserve：After the template dismounting in mould, face sealed plastic bag is being poured, is being 20 ± 2 DEG C, humidity 85 in temperature 28d is conserved under conditions of~90 degree, you can obtains the foamed concrete material conserved.
- A kind of 2. method for filling arcading slab bridge air bubble mix light-textured soil according to claim 1, it is characterised in that： Hole described in step (3) is the sealing area that is made up of arch springing, some hogbacks and arcading slab bridge plane；Described hogback difference Positioned at the opposite end of described arch springing.
- A kind of 3. method for filling arcading slab bridge air bubble mix light-textured soil according to claim 1, it is characterised in that： The aperture of foam is 0.5~1mm in bubble population described in step (1) or step (2).
- A kind of 4. method for filling arcading slab bridge air bubble mix light-textured soil according to claim 1, it is characterised in that： Pressure when foam device described in step (1) works is 0.5MPa.
- A kind of 5. method for filling arcading slab bridge air bubble mix light-textured soil according to claim 1, it is characterised in that： The frothing percentage of foaming agent described in step (1) is 20 times.
- A kind of 6. method for filling arcading slab bridge air bubble mix light-textured soil according to claim 1, it is characterised in that： Volume≤400m of mould described in step (3)3。
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710627641.3A CN107386120A (en) | 2017-07-28 | 2017-07-28 | A kind of method for filling arcading slab bridge air bubble mix light-textured soil |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710627641.3A CN107386120A (en) | 2017-07-28 | 2017-07-28 | A kind of method for filling arcading slab bridge air bubble mix light-textured soil |
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| CN107386120A true CN107386120A (en) | 2017-11-24 |
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Cited By (1)
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| CN111696098A (en) * | 2020-06-16 | 2020-09-22 | 王昕阳 | Concrete member detection system and method based on big data |
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Application publication date: 20171124 |