CN106498972B - A kind of concrete assembled basic and its installation method - Google Patents
A kind of concrete assembled basic and its installation method Download PDFInfo
- Publication number
- CN106498972B CN106498972B CN201611228169.8A CN201611228169A CN106498972B CN 106498972 B CN106498972 B CN 106498972B CN 201611228169 A CN201611228169 A CN 201611228169A CN 106498972 B CN106498972 B CN 106498972B
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- chassis
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- convex block
- bottom plate
- stand column
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- 239000004567 concrete Substances 0.000 title claims abstract description 53
- 238000000034 method Methods 0.000 title claims abstract description 13
- 238000009434 installation Methods 0.000 title claims abstract description 9
- 229910000831 Steel Inorganic materials 0.000 claims description 15
- 239000010959 steel Substances 0.000 claims description 15
- 239000004575 stone Substances 0.000 claims description 12
- 239000000835 fiber Substances 0.000 claims description 11
- 229920001817 Agar Polymers 0.000 claims description 10
- 108010010803 Gelatin Proteins 0.000 claims description 10
- 239000008272 agar Substances 0.000 claims description 10
- 150000001732 carboxylic acid derivatives Chemical class 0.000 claims description 10
- 239000003638 chemical reducing agent Substances 0.000 claims description 10
- 239000008273 gelatin Substances 0.000 claims description 10
- 229920000159 gelatin Polymers 0.000 claims description 10
- 235000019322 gelatine Nutrition 0.000 claims description 10
- 235000011852 gelatine desserts Nutrition 0.000 claims description 10
- 238000003756 stirring Methods 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 239000004568 cement Substances 0.000 claims description 7
- 239000002245 particle Substances 0.000 claims description 6
- 239000004576 sand Substances 0.000 claims description 6
- 239000002994 raw material Substances 0.000 claims description 5
- 238000013461 design Methods 0.000 claims description 3
- 239000002689 soil Substances 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims 1
- 230000006378 damage Effects 0.000 abstract description 5
- 238000010276 construction Methods 0.000 description 7
- 238000012360 testing method Methods 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000011398 Portland cement Substances 0.000 description 3
- 238000007710 freezing Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 241001163600 Bathylaco nigricans Species 0.000 description 1
- 208000001034 Frostbite Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000002528 anti-freeze Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003090 exacerbative effect Effects 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000009417 prefabrication Methods 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 230000001932 seasonal effect Effects 0.000 description 1
- 238000010257 thawing Methods 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/32—Foundations for special purposes
- E02D27/42—Foundations for poles, masts or chimneys
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/32—Foundations for special purposes
- E02D27/35—Foundations formed in frozen ground, e.g. in permafrost soil
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2300/00—Materials
- E02D2300/0004—Synthetics
- E02D2300/0018—Cement used as binder
- E02D2300/002—Concrete
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Foundations (AREA)
Abstract
The invention discloses a kind of concrete assembled basis and its installation methods.The concrete assembled basis includes chassis, bottom plate and basic stand column；Center chassis is equipped with convex block；Convex block is regular polygon；Bottom plate is two pieces, and side center is equipped with notch；Two pieces of bottom plates mutually splice, and are bolted set on chassis upper end；Two pieces of bottom plate splicing shapes are adapted with chassis, and notch splicing shape is adapted with the convex block on chassis；Basic stand column lower end is hollow cylinder；Basic stand column is placed on by lower end hollow cylinder on the convex block on chassis, and is secured by bolts on bottom plate；The inner circle of hollow cylinder and convex block are circumscribed；Hollow cylinder is equipped with pouring hole, and pouring hole is connected with boring part.The concrete assembled basis of the present invention carries out the positioning of bottom plate and basic stand column using the convex block of center chassis, conveniently while being directed at whole bolts, easier for installation, accurate, avoids the damage to bolt screw thread.
Description
Technical field
The present invention relates to a kind of assembling type bases, and in particular to a kind of concrete assembled basis.
Background technology
Assembling type base is also known as prefabricated foundation, is prefabrication, site-assembled base form.It is than cast-in-place concrete base
Plinth saves the labour of 30-50%, shortens the construction period 1/3-1/2, and the quality of basis processing is guaranteed（In factory process condition
It is good）, construction operation is influenced small by seasonal climate, is conducive to mechanization or semi-mechanization operation, the operation for reducing construction personnel is strong
Degree is the developing direction of transmission line foundation construction.
Assembling type base is divided into metal foundation and concrete prefabricated basis by the difference of material.Although metal foundation transport is applied
Work is convenient, but its consumption steel material is big.Concrete prefabricated basis, the prefabricated reinforced concrete made of single or multiple parts assemblies
Basis.Dispensing, manufacture are unified in concrete prefabricated basis in prefabricated component factory, and processing conditions is good, and quality can ensure, convenient for using
New technology, new process reduce raw materials consumption.
Existing concrete prefabricated foundation mostly uses more than one piece combined type for convenient transportation, by chassis, bottom plate and column group
At.Chassis is equipped with bolt（Totally 32 bolts）, bottom plate be equipped with corresponding bolt hole, connected by bolt between chassis and bottom plate
It connects.It needs to use crane lifting when mounted, bottom plate is sitting on chassis after bolt is directed at bolt hole, when alignment is right simultaneously
Accurate all bolt and bolt hole, are a time-consuming and laborious job, and bottom plate weight is big, installation personnel may accidentally squeeze
Wound is received not, while damage bolt screw thread is also possible to when bottom plate falls.
Simultaneously in permafrost region（Such as Qinghai-Tibet Platean）The construction for carrying out concrete prefabricated basis, since climate warming and engineering are made
With permafrost degradation is accelerated, the problems such as exacerbating frost heave, the thaw collapse on transmission line of electricity frozen soil basis, this will seriously affect transmission line of electricity
Safe operation.
Invention content
The purpose of the present invention is to solve defect existing in the prior art, a kind of concrete facilitating installation is provided and is filled
With formula basis.
In order to achieve the above object, the present invention provides a kind of concrete assembled basis, including chassis, bottom plate and basis are stood
Column；Chassis is equipped with more bolts, and bottom plate is equipped with corresponding bolt hole；Wherein, center chassis is equipped with convex block；Convex block is just more
Side shape；Bottom plate is two pieces, and side center is equipped with notch；Two pieces of bottom plates mutually splice, and are bolted set on chassis upper end；Two
Block bottom plate splicing shape is adapted with chassis, and notch splicing shape is adapted with the convex block on chassis；Basic stand column lower end is hollow
Cylinder；Basic stand column is placed on by lower end hollow cylinder on the convex block on chassis, and is secured by bolts on bottom plate；Hollow cylinder
Inner circle and convex block it is circumscribed；Hollow cylinder is equipped with pouring hole, and pouring hole is connected with boring part.
Convex block is preferably square；Two pieces of base plate configurations are in the same size.
The height of convex block is 30-50cm；The height of hollow cylinder is 2-3 times of bump height；Basic stand column lower end is sky
Heart cylinder, upper end are the frustum of a cone；The height of hollow cylinder and frustum of a cone ratio is 2:1.
Basic stand column upper surface is equipped with foundation bolt；Protection cylinder is cased on foundation bolt；End closure on cylinder is protected, and is protected
Froth bed is equipped in cylinder.
Frost-resistant concrete has been poured in the hollow cylinder of basic stand column；Frost-resistant concrete uses the raw material of following weight proportion
It prepares：20-50 parts of cement, 5-8 parts of fine sand, 1-3 parts of basaltic broken stone, 2-3 parts of steel fibre, high-efficiency water-reducing agent of poly-carboxylic acid 1-
2 parts, 0.5-1 parts of gelatin, 0.1-0.2 parts of agar；The length of the steel fibre is 1-3mm；The grain size of the basaltic broken stone
Size is 10mm-20mm.
Upper frost-resistant concrete preferred raw material weight proportion is：40 parts of cement, 5 parts of fine sand, 2 parts of basaltic broken stone, steel fibre
3 parts, 2 parts of high-efficiency water-reducing agent of poly-carboxylic acid, 0.8 part of gelatin, 0.1 part of agar；The length of steel fibre is 1-3mm；Basaltic broken stone
Particle size be 10mm-20mm.
Above-mentioned frost-resistant concrete is prepared by the following method：Gelatin is added into hot water under stirring, waits for completely molten
Continue stirring after solution and agar is added, is until completely dissolved cooled to room temperature solution；Then by solution and cement, fine sand, the Black Warrior
Rock rubble, steel fibre, high-efficiency water-reducing agent of poly-carboxylic acid are stirred；The weight of hot water is 10-15 times of gelatin weight；The temperature of hot water
Degree is 60-90 DEG C.
The present invention also provides the installation methods on above-mentioned concrete assembled basis, include the following steps：It is needing to be arranged
Foundation pit is dug out in the position on basis by design requirement, after the tentatively leveling of foundation pit hole bottom, is laid with the rubble of 10cm thickness, compacting is whole
It is flat；It is laid with chassis at foundation pit hole bottom, the notch of bottom plate is aligned to the convex block on the chassis, is laid with two pieces of bottom plates successively；Then
The hollow cylinder of basic stand column is aligned to the convex block on the chassis, carries out the laying of basic stand column；Chassis, bottom plate and basic stand column
It is fixed respectively by bolt；By the pouring hole of basic stand column, internally hollow parts pour frost-resistant concrete；Backfill base
Hole.
The present invention has the following advantages compared with prior art：
1, the positioning of bottom plate and basic stand column is carried out using the convex block of center chassis, conveniently while being directed at whole bolts, is pacified
It fills more convenient, accurate, avoids the damage to bolt screw thread.
2, basic stand column uses two-part structure, and hypomere uses hollow structure, reduces dead weight, convenience in transport.
3, the intensity and anti-freezing property of assembling type base are improved by pouring frost-resistant concrete inside basic stand column.It is freeze proof
Concrete using gelatin and agar as antifreeze, and green pollution-free；High-efficiency water-reducing agent of poly-carboxylic acid is used in combination, can have
Effect reduces the frostbite to freeze to concrete；The intensity of concrete is improved using steel fibre；In conjunction with the proportioning of cement and aggregate, into one
Step increases the cracking resistance of concrete.
4, foundation bolt is protected using the protection cylinder with froth bed, its damage of outer bound pair can be prevented, it can be with
Mitigate the degree of corrosion of foundation bolt.
5, the concrete assembled basis of the present invention, it is simple in structure, facilitate installation；And more than one piece combined type is used, convenience in transport,
It is particularly suitable for the transmission line foundation construction of permafrost region.
Description of the drawings
Fig. 1 is the structural schematic diagram on the concrete assembled basis of the present invention；
Fig. 2 is the structural schematic diagram on chassis in Fig. 1；
Fig. 3 is the structural schematic diagram of Fig. 1 bottom plates；
Fig. 4 is the structural schematic diagram of basic stand column in Fig. 1.
In figure, the chassis 1-, 11- convex blocks, 2- bottom plates, 21- notches, 3- basic stand columns, 31- hollow cylinders, the 32- frustums of a cone,
33- pouring holes, 4- protect cylinder.
Specific implementation mode
The present invention is described in detail below in conjunction with the accompanying drawings.
As shown in Figure 1, the concrete assembled basis of the present invention includes chassis 1, the identical bottom plate 2 of two block size shapes and base
Plinth column 3.Chassis 1 and basic stand column 3 are fixed by bolt and bottom plate 2 respectively.
In conjunction with Fig. 2 to Fig. 4,1 center of chassis is equipped with square convex block 11.The side center of bottom plate 2 is equipped with notch 21；Two pieces
2 phase of bottom plate is spliced, and the convex block 11 on chassis 1 is stuck in the notch 21 of splicing, and bottom plate 2 and chassis 1 are bolted.Basic stand column
3 include the frustum of a cone 32 of the hollow cylinder 31 and upper end of lower end.Basic stand column 3 is placed on the convex of chassis by lower end hollow cylinder 31
On block, and it is secured by bolts on bottom plate 2.The inner circle of hollow cylinder 31 and convex block are circumscribed.Hollow cylinder is equipped with pouring hole
33, pouring hole 33 is connected with boring part.The height of convex block 11 is 30-50cm；The height of hollow cylinder 31 is convex block
2-3 times of 11 height；The height ratio of hollow cylinder 31 and the frustum of a cone 32 is 2:1.32 upper surface of the frustum of a cone is equipped with foundation bolt, ground
It is cased with protection cylinder 4 on foot bolt, protects end closure on cylinder 4, and protect and be equipped with froth bed in cylinder 4.
Frost-resistant concrete has been poured in the hollow cylinder of basic stand column.
Selection experiment is carried out to the formula of frost-resistant concrete：
Frost-resistant concrete a is prepared by the following method：0.5 part of gelatin is added into 5 parts of 90 DEG C of hot water under stirring,
Continue stirring until completely dissolved and 0.1 part of agar is added, is until completely dissolved cooled to room temperature solution；Then by solution and 20
Part Portland cement, 5 parts of fine sands, 1 part of basaltic broken stone（Particle size is 10mm-20mm）, 2 parts of steel fibres（Length is
1-3mm）, 1 part of high-efficiency water-reducing agent of poly-carboxylic acid be stirred to get.
Frost-resistant concrete b is prepared by the following method：Into 15 parts 60 DEG C of hot water, 1 part of addition is bright under stirring
Glue continues stirring and 0.2 part of agar is added, is until completely dissolved cooled to room temperature solution until completely dissolved；Then by solution
With 50 parts of Portland cements, 8 parts of fine sands, 3 parts of basaltic broken stones（Particle size is 10mm-20mm）, 3 parts of steel fibres（It is long
Degree is 1-3mm）, 2 parts of high-efficiency water-reducing agent of poly-carboxylic acid be stirred to get.
Frost-resistant concrete c is prepared by the following method：Into 10 parts 80 DEG C of hot water, 0.8 part of addition is bright under stirring
Glue continues stirring and 0.1 part of agar is added, is until completely dissolved cooled to room temperature solution until completely dissolved；Then by solution
With 40 parts of Portland cements, 5 parts of fine sands, 2 parts of basaltic broken stones（Particle size is 10mm-20mm）, 3 parts of steel fibres（It is long
Degree is 1-3mm）, 2 parts of high-efficiency water-reducing agent of poly-carboxylic acid be stirred to get.
It takes above-mentioned frost-resistant concrete to prepare test specimen respectively, is tested for the property, it is as a result as follows.Wherein, freeze thawing resistance experiment is pressed
It is measured according to " the freezing method soon " in GB/T 50082-2009, which provides that test specimen reaches the standard of destruction and termination test
For：
1,300 cycles are had reached, it can termination test；
2, relative dynamic elastic modulus drop to 60% or less or mass loss rate up to 5%, that is, show that test specimen has been damaged by frost.
1 concrete crushing strength of table compares
2 concrete antifreezing performance of table（Mass loss rate）Comparison
3 concrete antifreezing performance of table（Relative dynamic elastic modulus）Comparison
As can be seen from the above table, the anti-freezing property of each group concrete and compression strength are preferable, with the performance of concrete c
It is best.
When carrying out concrete assembled foundation construction of the invention：Needing the position that basis is arranged base is dug out by design requirement
Plinth is cheated, and after the tentatively leveling of foundation pit hole bottom, is laid with the rubble of 10cm thickness, compacting leveling；It is laid with chassis 1 at foundation pit hole bottom,
The notch 21 of bottom plate 2 is aligned to the convex block 11 on chassis 1, is laid with two pieces of bottom plates 2 successively；Then by the hollow cylinder of basic stand column 3
The convex block 11 on 31 alignment chassis 1, carries out the laying of hollow cylinder and the frustum of a cone successively.Chassis 1, bottom plate 2 and basic stand column 3 are distinguished
It is fixed by bolt；By the pouring hole of basic stand column, internally hollow parts pour frost-resistant concrete c；In the frustum of a cone 32
A protection cylinder 4 is respectively put on the foundation bolt of upper surface, and fang bolt is made to be clamped in internal foam layer；Backfill foundation pit.
Claims (8)
1. a kind of concrete assembled basis, including chassis, bottom plate and basic stand column；The chassis is equipped with more bolts, institute
It states bottom plate and is equipped with corresponding bolt hole；It is characterized in that：The center chassis is equipped with convex block；The convex block is regular polygon；
The bottom plate is two pieces, and side center is equipped with notch；Two pieces of bottom plates mutually splice, and are bolted on the chassis
End；Two pieces of bottom plate splicing shapes are adapted with the chassis, and notch splicing shape is adapted with the convex block on the chassis；The base
Plinth column lower end is hollow cylinder；The basic stand column is placed on by lower end hollow cylinder on the convex block on the chassis, and is passed through
Bolt is fixed on the bottom plate；The inner circle of the hollow cylinder and the convex block are circumscribed；The hollow cylinder is equipped with and pours
Hole, the pouring hole are connected with boring part.
2. concrete assembled basis according to claim 1, it is characterised in that：The convex block is square；Described two
Block base plate configuration is in the same size.
3. concrete assembled basis according to claim 2, it is characterised in that：The height of the convex block is 30-50cm；
The height of the hollow cylinder is 2-3 times of bump height；The basic stand column lower end is hollow cylinder, and upper end is the frustum of a cone；
The height of the hollow cylinder and frustum of a cone ratio is 2:1.
4. concrete assembled basis according to claim 3, it is characterised in that：The basic stand column upper surface is equipped with ground
Foot bolt；Protection cylinder is cased on the foundation bolt；End closure on the protection cylinder, and protect and be equipped with froth bed in cylinder.
5. concrete assembled basis according to claim 1, it is characterised in that：In the hollow cylinder of the basic stand column
Frost-resistant concrete is poured；The frost-resistant concrete is prepared using the raw material of following weight proportion：20-50 parts of cement, fine sand
5-8 parts, 1-3 parts of basaltic broken stone, 2-3 parts of steel fibre, 1-2 parts of high-efficiency water-reducing agent of poly-carboxylic acid, 0.5-1 parts of gelatin, agar
0.1-0.2 parts；The length of the steel fibre is 1-3mm；The particle size of the basaltic broken stone is 10mm-20mm.
6. concrete assembled basis according to claim 5, it is characterised in that：The frost-resistant concrete passes through following heavy
It is prepared by the raw material of amount proportioning：40 parts of cement, 5 parts of fine sand, 2 parts of basaltic broken stone, 3 parts of steel fibre, high-efficiency water-reducing agent of poly-carboxylic acid
2 parts, 0.8 part of gelatin, 0.1 part of agar；The length of the steel fibre is 1-3mm；The particle size of the basaltic broken stone is
10mm-20mm。
7. concrete assembled basis according to claim 6, it is characterised in that：The frost-resistant concrete passes through with lower section
It is prepared by method：Gelatin is added into hot water under stirring, continues stirring until completely dissolved and agar is added, until completely dissolved
Solution is cooled to room temperature；Then by the solution and cement, fine sand, basaltic broken stone, steel fibre, high-efficiency water-reducing agent of poly-carboxylic acid
It is stirred；The weight of the hot water is 10-15 times of gelatin weight；The temperature of the hot water is 60-90 DEG C.
8. the installation method on any concrete assembled basis of claim 1 to 7, it is characterised in that：Include the following steps：
Foundation pit is dug out by design requirement in the position for needing setting basic, after the tentatively leveling of foundation pit hole bottom, laying 10cm thickness
Rubble, compacting leveling；It is laid with chassis at foundation pit hole bottom, the notch of bottom plate is aligned to the convex block on the chassis, is laid with two successively
Block bottom plate；Then the hollow cylinder of basic stand column is aligned to the convex block on the chassis, carry out the laying of basic stand column；Chassis, bottom
Plate and basic stand column are fixed by bolt respectively；By the pouring hole of basic stand column, internally hollow parts pour freeze proof mix
Solidifying soil；Backfill foundation pit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611228169.8A CN106498972B (en) | 2016-12-27 | 2016-12-27 | A kind of concrete assembled basic and its installation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611228169.8A CN106498972B (en) | 2016-12-27 | 2016-12-27 | A kind of concrete assembled basic and its installation method |
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| CN106498972A CN106498972A (en) | 2017-03-15 |
| CN106498972B true CN106498972B (en) | 2018-11-06 |
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| CN106677203A (en) * | 2016-12-30 | 2017-05-17 | 西安建筑科技大学 | Prefabricated anchoring base for frozen soil foundation and installation method |
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| CN105418010A (en) * | 2015-09-01 | 2016-03-23 | 深圳海龙建筑制品有限公司 | Ultra-high-performance concrete prefabricated component and preparation method thereof |
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| CN206308705U (en) * | 2016-12-27 | 2017-07-07 | 国网江苏省电力公司经济技术研究院 | A kind of concrete assembled basis |
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2016
- 2016-12-27 CN CN201611228169.8A patent/CN106498972B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN202265835U (en) * | 2011-10-12 | 2012-06-06 | 浙江巨匠钢业有限公司 | Assembling base of prefabricated part |
| JP4999216B1 (en) * | 2012-04-10 | 2012-08-15 | 株式会社東武防災建設 | Basic block for earthquake-proof evacuation room |
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| CN106498972A (en) | 2017-03-15 |
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