CN106498972A - A kind of concrete assembled basis and its installation method - Google Patents
A kind of concrete assembled basis and its installation method Download PDFInfo
- Publication number
- CN106498972A CN106498972A CN201611228169.8A CN201611228169A CN106498972A CN 106498972 A CN106498972 A CN 106498972A CN 201611228169 A CN201611228169 A CN 201611228169A CN 106498972 A CN106498972 A CN 106498972A
- Authority
- CN
- China
- Prior art keywords
- chassis
- projection
- parts
- base plate
- stand column
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
Abstract
The invention discloses a kind of concrete assembled basis and its installation method.The concrete assembled basis includes chassis, base plate and basic stand column；Center chassis are provided with projection；Projection is regular polygon；Base plate is two pieces, and side center is provided with notch；Two pieces of base plates mutually splice, and are bolted located at chassis upper end；Two pieces of base plate splicing shapes are adapted with chassis, and notch splicing shape is adapted with the projection on chassis；Basic stand column lower end is hollow cylinder；Basic stand column is placed on the projection on chassis by lower end hollow cylinder, and is secured by bolts on base plate；The inner circle of hollow cylinder is circumscribed with projection；Hollow cylinder is provided with pouring hole, and pouring hole is connected with boring part.The concrete assembled basis of the present invention carries out the positioning of base plate and basic stand column using the projection of center chassis, convenient be directed at whole bolts simultaneously, easier for installation, accurate, it is to avoid the damage to bolt screw thread.
Description
Technical field
The present invention relates to a kind of assembling type base, and in particular to a kind of concrete assembled basis.
Background technology
Assembling type base, also known as prefabricated foundation, is prefabrication, site-assembled base form.It is than cast-in-place concrete base
Plinth saves the labour force of 30-50%, reduction of erection time 1/3-1/2, and the quality of basis processing is guaranteed（In factory process condition
Good）, construction operation is affected little by seasonal climate, is conducive to mechanization or semi-mechanization operation, and the operation for reducing workmen 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, with the prefabricated reinforced concrete of single or multiple parts assemblies
Basis.Dispensing, manufacture are unified in prefabricated component factory in concrete prefabricated basis, and processing conditionss are good, and quality ensure that, are easy to adopt
New technique, new technology, reduce raw materials consumption.
Existing concrete prefabricated foundation adopts more than one piece combination type, by chassis, base plate and column group for convenient transportation more
Into.Chassis is provided with bolt（Totally 32 bolts）, base plate is provided with corresponding bolt hole, connected by bolt between chassis and base plate
Connect.Need when mounted to adopt crane lifting, base plate is sitting on chassis after bolt alignment bolt hole, to simultaneously right on time
Accurate all of bolt and bolt hole, are the work that wastes time and energy, and base plate weight are big, installation personnel imprudence may be squeezed
Wound is received not, while being also possible to damage bolt screw thread when base plate falls.
Simultaneously in permafrost region（Such as Qinghai-Tibet Platean）The construction on concrete prefabricated basis is carried out, as climate warming and engineering are made
With permafrost degradation is accelerated, exacerbate transmission line of electricity frozen soil basis frost heave, thaw collapse the problems such as, this will have a strong impact on transmission line of electricity
Safe operation.
Content of the invention
The invention aims to solving defect present in prior art, there is provided a kind of convenient concrete dress that installs
With formula basis.
In order to achieve the above object, the present invention provides a kind of concrete assembled basis, vertical including chassis, base plate and basis
Post；Chassis is provided with many bolts, and base plate is provided with corresponding bolt hole；Wherein, center chassis are provided with projection；Projection is just many
Side shape；Base plate is two pieces, and side center is provided with notch；Two pieces of base plates mutually splice, and are bolted located at chassis upper end；Two
Block base plate splicing shape is adapted with chassis, and notch splicing shape is adapted with the projection on chassis；Basic stand column lower end is hollow
Cylinder；Basic stand column is placed on the projection on chassis by lower end hollow cylinder, and is secured by bolts on base plate；Hollow cylinder
Inner circle circumscribed with projection；Hollow cylinder is provided with pouring hole, and pouring hole is connected with boring part.
Projection is preferably square；Two pieces of base plate configurations are in the same size.
The height of projection is 30-50cm；2-3 times for bump height of the height of hollow cylinder；Basic stand column lower end is sky
Heart cylinder, upper end are the frustum of a cone；Hollow cylinder is 2 with the height ratio of the frustum of a cone:1.
Basic stand column upper surface is provided with foundation bolt；It is cased with protecting cylinder on foundation bolt；End closure on protection cylinder, and protect
Froth bed is provided with cylinder.
Frost-resistant concrete has been poured in the hollow cylinder of basic stand column；Raw material of the frost-resistant concrete using following weight proportion
Prepare：Cement 20-50 parts, fine sand 5-8 parts, basaltic broken stone 1-3 parts, steel fibre 2-3 parts, high-efficiency water-reducing agent of poly-carboxylic acid 1-
2 parts, gelatin 0.5-1 parts, agar 0.1-0.2 parts；The length of the steel fibre is 1-3mm；The particle diameter of the basaltic broken stone
Size is 10mm-20mm.
Upper frost-resistant concrete preferred feedstock 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
Size be 10mm-20mm.
Above-mentioned frost-resistant concrete is prepared by the following method：Gelatin is added in hot water under stirring, is treated completely molten
Continue stirring after solution and add agar, solution is cooled to room temperature until completely dissolved；Then by solution and cement, fine sand, the Black Warrior
Rock rubble, steel fibre, high-efficiency water-reducing agent of poly-carboxylic acid stirring mixing；10-15 times for gelatin weight of the weight of hot water；The temperature of hot water
Spend for 60-90 DEG C.
Present invention also offers the installation method on above-mentioned concrete assembled basis, comprises the following steps：Needing to arrange
Foundation pit is dug out by design requirement in the position on basis, after foundation pit hole bottom tentatively flattens, lays the thick rubbles of 10cm, tamps whole
Flat；On foundation pit hole bottom laying chassis, the projection that the notch of base plate is aligned the chassis lays two pieces of base plates successively；Then
The projection that the hollow cylinder of basic stand column is aligned the chassis, carries out the laying of basic stand column；Chassis, base plate and basic stand column
It is fixed by bolt respectively；By the pouring hole of basic stand column, internally hollow parts pour frost-resistant concrete；Backfill base
Hole.
The present invention has advantages below compared to existing technology：
1st, the projection using center chassis carries out the positioning of base plate and basic stand column, convenient while being directed at whole bolts, installation is more
Plus convenient, precisely, it is to avoid the damage to bolt screw thread.
2nd, basic stand column adopts two-part structure, and hypomere adopts hollow structure, reduces deadweight, convenient transport.
3rd, intensity and the anti-freezing property of assembling type base are improved by pouring frost-resistant concrete inside basic stand column.Freeze proof
Concrete adopts gelatin and agar as antifreeze, and green pollution-free；High-efficiency water-reducing agent of poly-carboxylic acid is used in combination, can be had
Effect reduces the cold injury frozen to concrete；The intensity that concrete is improved using steel fibre；In conjunction with cement and the proportioning of aggregate, enter one
Step increased the cracking resistance of concrete.
4th, foundation bolt is protected using the protection cylinder with froth bed, outer bound pair its damage can be prevented, can be with
Mitigate the degree of corrosion of foundation bolt.
5th, concrete assembled basis of the invention, simple structure, convenient installation；And using more than one piece combination type, convenient transport,
It is particularly suited for the transmission line foundation construction of permafrost region.
Description of the drawings
Fig. 1 is the structural representation on the concrete assembled basis of the present invention；
Fig. 2 is the structural representation on chassis in Fig. 1；
Fig. 3 is the structural representation of base plate in Fig. 1；
Fig. 4 is the structural representation of basic stand column in Fig. 1.
In figure, 1- chassis, 11- projections, 2- base plates, 21- notches, 3- basic stand columns, 31- hollow cylinders, the 32- frustums of a cone,
33- pouring holes, 4- protect cylinder.
Specific embodiment
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, two block size shape identical base plates 2 and base
Plinth column 3.Chassis 1 and basic stand column 3 are fixed with base plate 2 by bolt respectively.
In conjunction with Fig. 2 to Fig. 4,1 center of chassis is provided with square projection 11.The side center of base plate 2 is provided with notch 21；Two pieces
Base plate 2 mutually splices, and the projection 11 on chassis 1 is stuck in the notch 21 of splicing, and base plate 2 and chassis 1 are bolted.Basic stand column
3 hollow cylinders 31 for including lower end and the frustum of a cone 32 of upper 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 base plate 2.The inner circle of hollow cylinder 31 is circumscribed with projection.Hollow cylinder is provided with pouring hole
33, pouring hole 33 is connected with boring part.The height of projection 11 is 30-50cm；The height of hollow cylinder 31 is projection
2-3 times of 11 height；Hollow cylinder 31 is 2 with the height ratio of the frustum of a cone 32:1.32 upper surface of the frustum of a cone is provided with foundation bolt, ground
It is cased with protecting cylinder 4 on foot bolt, in end closure on protection cylinder 4, and protection cylinder 4, is provided with froth bed.
Frost-resistant concrete has been poured in the hollow cylinder of basic stand column.
Selection test 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 in 5 parts of 90 DEG C of hot water under stirring, has been treated
Continue stirring after CL and add 0.1 part of agar, solution is cooled to room temperature until completely dissolved；Then will be general with 20 parts for solution
Logical portland cement, 5 parts of fine sands, 1 part of basaltic broken stone（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 stirring mixing, obtain final product.
Frost-resistant concrete b is prepared by the following method：Under stirring, in 15 parts 60 DEG C of hot water, 1 part of addition is bright
Glue, continues stirring until completely dissolved and adds 0.2 part of agar, solution is cooled to room temperature until completely dissolved；Then by solution
With 50 parts of Portland cements, 8 parts of fine sands, 3 parts of basaltic broken stones（Size is 10mm-20mm）, 3 parts of steel fibres（Long
Spend for 1-3mm）, 2 parts of high-efficiency water-reducing agent of poly-carboxylic acid stirring mixing, obtain final product.
Frost-resistant concrete c is prepared by the following method：Under stirring, in 10 parts 80 DEG C of hot water, 0.8 part of addition is bright
Glue, continues stirring until completely dissolved and adds 0.1 part of agar, solution is cooled to room temperature until completely dissolved；Then by solution
With 40 parts of Portland cements, 5 parts of fine sands, 2 parts of basaltic broken stones（Size is 10mm-20mm）, 3 parts of steel fibres（Long
Spend for 1-3mm）, 2 parts of high-efficiency water-reducing agent of poly-carboxylic acid stirring mixing, obtain final product.
Take above-mentioned frost-resistant concrete respectively and prepare test specimen, carry out performance test, as a result as follows.Wherein, freeze thawing resistance experiment is pressed
" freezing method soon " according to GB/T 50082-2009 is measured, and the standard specifies that test specimen reaches the standard of destruction and termination test
For：
1st, 300 circulation has been reached, just can termination test；
2nd, relative dynamic elastic modulus drop to less than 60% or mass loss rate up to 5%, that is, show that test specimen is damaged by frost.
1 concrete crushing strength of table is contrasted
2 concrete antifreezing performance of table（Mass loss rate）Contrast
3 concrete antifreezing performance of table（Relative dynamic elastic modulus）Contrast
As can be seen from the above table, the anti-freezing property of each group concrete and comprcssive strength are preferable, with the performance of concrete c as most
Good.
When carrying out concrete assembled foundation construction of the invention：Base is dug out in the position for needing to arrange basis by design requirement
Plinth is cheated, and after foundation pit hole bottom tentatively flattens, lays the thick rubbles of 10cm, compacting leveling；On foundation pit hole bottom laying chassis 1,
The projection 11 that the notch 21 of base plate 2 is aligned chassis 1, lays two pieces of base plates 2 successively；Then by the hollow cylinder of basic stand column 3
The projection 11 on 31 alignment chassis 1, carries out the laying of hollow cylinder and the frustum of a cone successively.Chassis 1, base 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, fang bolt is clamped in internal foam layer；Backfill foundation ditch.
Claims (8)
1. a kind of concrete assembled basis, including chassis, base plate and basic stand column；The chassis is provided with many bolts, institute
State base plate and be provided with corresponding bolt hole；It is characterized in that：The center chassis are provided with projection；The projection is regular polygon；
The base plate is two pieces, and side center is provided with notch；Two pieces of base plates mutually splice, and are bolted on the chassis
End；Two pieces of base plate splicing shapes are adapted with the chassis, and notch splicing shape is adapted with the projection 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 projection on the chassis, and is passed through
Bolt is fixed on the base plate；The inner circle of the hollow cylinder is circumscribed with the projection；The hollow cylinder is provided 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 projection 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 projection is 30-50cm；
2-3 times for bump height of the height of the hollow cylinder；The basic stand column lower end is hollow cylinder, and upper end is the frustum of a cone；
The hollow cylinder is 2 with the height ratio of the frustum of a cone:1.
4. concrete assembled basis according to claim 3, it is characterised in that：The basic stand column upper surface is provided with ground
Foot bolt；It is cased with protecting cylinder on the foundation bolt；Froth bed is provided with end closure on the protection cylinder, and protection 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：Cement 20-50 parts, fine sand
5-8 parts, basaltic broken stone 1-3 parts, steel fibre 2-3 parts, high-efficiency water-reducing agent of poly-carboxylic acid 1-2 parts, gelatin 0.5-1 parts, agar
0.1-0.2 parts；The length of the steel fibre is 1-3mm；The 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 is by following heavy
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 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
Prepared by method：Gelatin is added under stirring in hot water, is continued stirring until completely dissolved and is added agar, 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
Stirring mixing；10-15 times for gelatin weight of the weight of the hot water；The temperature of the hot water is 60-90 DEG C.
8. claim 1 to 7 arbitrary described concrete assembled basis installation method, it is characterised in that：Comprise the following steps：
Foundation pit is dug out in the position for needing setting basic by design requirement, after foundation pit hole bottom tentatively flattens, laying 10cm thickness
Rubble, compacting leveling；On foundation pit hole bottom laying chassis, the projection that the notch of base plate is aligned the chassis lays two successively
Block base plate；Then the hollow cylinder of basic stand column is aligned the projection on the chassis, the laying of basic stand column is carried out；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 mixing
Solidifying soil；Backfill foundation ditch.
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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| Publication Number | Publication Date |
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| CN106498972A true CN106498972A (en) | 2017-03-15 |
| CN106498972B CN106498972B (en) | 2018-11-06 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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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| Publication number | Publication date |
|---|---|
| CN106498972B (en) | 2018-11-06 |
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