CN209211482U - A kind of assembled cone column-sheet-pile composite foundation for transmission line of electricity - Google Patents
A kind of assembled cone column-sheet-pile composite foundation for transmission line of electricity Download PDFInfo
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- CN209211482U CN209211482U CN201821980203.1U CN201821980203U CN209211482U CN 209211482 U CN209211482 U CN 209211482U CN 201821980203 U CN201821980203 U CN 201821980203U CN 209211482 U CN209211482 U CN 209211482U
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Abstract
The utility model discloses a kind of assembleds for transmission line of electricity to bore column-sheet-pile composite foundation, including pedestal and the supporting section being connected on pedestal；Supporting section includes the cone shell of column from top to bottom set gradually and hollow section, the top for boring shell of column connects built-in fitting, pedestal includes the middle part concrete beam being connected by ring flange with supporting section, at middle part, the long side two sides of concrete beam are arranged in parallel with outer concrete crossbeam, are fixed together between middle part concrete beam and outer concrete crossbeam by more concrete slabs disposed in parallel.Pass through concrete-placing reinforcing steel bar cage in cone shell of column, steel reinforcement cage and ring flange welding or mechanically coupled together.The basis of the utility model can solve Frost heave of frozen soil and destroy problem, from heavy and light, it is small to splice component volume, save transportation cost and hoisting difficulty, reduce concrete material amount and dead load, structure design is more economical, and precast concrete shortens construction period, ensure that concrete quality.
Description
Technical field
The utility model relates to work transmission line fields, and in particular to a kind of assembled cone column-for transmission line of electricity
Sheet-pile composite foundation.
Background technique
Qinghai-Tibet, northeast, Xinjiang region are distributed long-term or frost zone, and frost heave action is significant, winter temperature severe cold, mix
Solidifying soil pours, conserves difficulty；Simultaneously with the raising of transmission line of electricity mechanized construction technical level, electricity power engineering constructive ability
It is promoted and the conversion requirements of construction mode, uses prefabricated assembled basis in engineering construction more and more, it can be by fast
Speed is excavated and backfill foundation pit overcomes the problems, such as the forming or difficult in maintenance of these Special section foundation pits, while can guarantee coagulation soil property
Amount shortens construction period.
Tangent coordinate system can completely or partially be eliminated by the cross section type of itself by boring column foundation.It is mainly used for freezing for many years
Tu Qu, and embedded depth of foundation is greater than design and melts depth, leg surface takes effective anti-lifting by frost measure.Boring column foundation is frozen soil foundation
Common foundation pattern has more mature design, construction and operating experience in engineering.
Precast concrete assembling type base in transmission line of electricity using increasingly extensive, but with precast concrete assembled
Key dimension and self weight are also continuously increased, to considerably increase the difficulty of transport, lifting, especially have inconvenient traffic, item of constructing
The problem of severe area of part, transportation cost is high, difficulty of construction is big, seriously constrains precast concrete assembling type base
Promotion and application.
Existing precast concrete assembled sheet-pile basis often uses solid concrete principal post, and bottom plate uses solid step
Formula or prismatic table shape concrete slab, can be related to following point: 1. basic principal post is right cylinder, and suffered horizontal Normal frost heave can phase
It mutually offsets, and tangent coordinate system can generate pulling out effect to basis, be easy to cause on basic and pull out unstable failure.2. principal post uses
Solid concrete column, bottom plate use solid concrete plate, and cubic amount of concrete is big, from great, and transport can consume very big resource.③
Integrally formed prefabricated components volume is larger, is taken up too much space in transport, and the efficiency of transport is reduced.4. larger, body of being self-possessed
The biggish component of product will increase the difficulty of lifting, while the transport difficulty of heavy-duty hoisting equipment needed for operation is also increase accordingly.
5. high performance concrete usually can be used in prefabricated foundation, continues to use the design of solid concrete sheet-pile and do not give full play to its material
Characteristic causes the waste of material and cost.
Utility model content
The purpose of this utility model is that for long-term or frost zone region, solid concrete principal post volume is big, transports
The problem of defeated difficulty, provides a kind of assembled cone column-sheet-pile composite foundation for transmission line of electricity, which closes
Reason can completely or partially eliminate tangent coordinate system by the cross section type of itself；In addition, there is overall structure lightness, spell
The characteristics of component minimizes is filled, concrete user amount is few in use process, material and integration engineering cost can be effectively saved,
Transportation cost is low, and easy for construction.
To achieve the goals above, the technical solution adopted in the utility model are as follows:
A kind of assembled cone column-sheet-pile composite foundation for transmission line of electricity, including pedestal and is connected on pedestal
Supporting section；The supporting section includes cone shell of column, and it is hollow section, cone inside cone shell of column that the top for boring shell of column, which is connected with built-in fitting,
The bottom of shell of column is provided with ring flange；The pedestal includes middle part concrete beam and concrete slab, and middle part concrete is horizontal
Beam is connect by flange with the ring flange for boring shell of column bottom；The long side two sides of middle part concrete beam are arranged in parallel with outside respectively
Concrete beam, more concrete slabs are arranged in parallel to form array structure, middle part concrete beam and outer concrete crossbeam
It is arranged on array structure and is fixed to each other.
The cone shell of column is formed by steel reinforcement cage and concreting, and steel reinforcement cage and ring flange are welded or be mechanically connected.
Steel reinforcement cage includes several main reinforcements for being vertically arranged one week, and the outer stirrup of circumferential direction and circumferential direction are respectively disposed with inside and outside main reinforcement
Interior stirrup；Main reinforcement is tied up or is welded to connect with circumferential outer stirrup and stirrup in circumferential direction, in circumferential outer stirrup and circumferential direction between stirrup
There are the gaps equal with main reinforcement diameter.
The strength grade of concrete used in the supporting section is not less than C30, and the intensity of main reinforcement is not less than HRB400.
The hollow section and cone shell of column coaxial arrangement, the sectional area of hollow section are the 30%-50% for boring the sectional area of shell of column.
Distance >=middle part concrete beam thickness+concrete slab thickness at the top of hollow section bottom to ring flange.
The middle part concrete beam and outer concrete crossbeam is rectangular parallelepiped structure.
The cone shell of column is rotary table column or truncated rectangular pyramids pillar construction.
The hollow section is using hollow structure or filling non-concrete substance.
The ring flange and bolt is made of anti-corrosion material, perhaps surface prepare anticorrosive coating surface layer or
The composite layer of brushing anticorrosive coating is protected again on spray, zinc coat.
Compared with prior art, the utility model have it is following the utility model has the advantages that
Since supporting section includes cone shell of column and hollow section, make to support section concrete user amount it is small, from heavy and light, transportation cost
It is greatly lowered, facilitates lifting and construction.The middle part concrete beam of pedestal passes through disposed in parallel with outer concrete crossbeam
More concrete slabs are fixed together, and save concrete about 20%- than conventional step or prismatic table shape concrete floor
40%, convenient transportation.
Further, the utility model cone shell of column uses rotary table column or truncated rectangular pyramids column, can significantly reduce tangent coordinate system
Influence to basis, therefore be widely used in Permafrost Area.
Prefabricated technique is used using the utility model, conveniently digs fastly fastly fills out, normal in the place of base pit engineering at the scene
The foundation pits forming such as year or frost zone maintains difficult place rapid construction, reduces the exposure duration of ever-frozen ground, favorably
In construction operation and environmental protection, reduce security risk.It is prepared using precast concrete, can guarantee the quality of concrete, keep away
Exempt from the difficulty of casting concrete under live adverse circumstances, while high-performance and strong concrete can be used to promote the anti-of basis
The endurance qualities such as rotten, antifreeze and load-carrying properties.The utility model compared to common prefabricated assembled basis, can save transport at
Originally, concrete amount and hoisting difficulty, in the communications and transportation area in hardship, saving cost about 5%~30% or so, efficiency ratio height,
Stock utilization is high, economic benefit is obvious.
Detailed description of the invention
The structural schematic diagram that Fig. 1 the utility model supporting section is vertically arranged；
The structural schematic diagram of Fig. 2 the utility model pedestal；
The schematic cross-section of Fig. 3 the utility model cone shell of column structure；
In attached drawing: 1- bores shell of column；2- hollow section；3- ring flange；Concrete beam in the middle part of 4-；5- outer concrete crossbeam；
6- built-in fitting；7- concrete slab；8- bolt；9- main reinforcement；The circumferential outer stirrup of 10-；Stirrup in 11- circumferential direction.
Specific embodiment
The following describes the utility model in further detail with reference to the accompanying drawings.
Referring to Fig. 1, coagulation based on a kind of assembled cone column-sheet-pile composite foundation for transmission line of electricity of the utility model
Soil structure, including pedestal and the supporting section being connected on pedestal；The supporting section includes the cone from top to bottom set gradually
Shell of column 1 and hollow section 2, the top of cone shell of column 1 connect built-in fitting 6, and the pedestal includes being connected by ring flange 3 with supporting section
Middle part concrete beam 4, at middle part, the long side two sides of concrete beam 4 are arranged in parallel with outer concrete crossbeam 5, and middle part is mixed
It is fixed together between solidifying soil crossbeam 4 and outer concrete crossbeam 5 by more concrete slabs 7 disposed in parallel.Concrete
Steel reinforcement cage is equipped in the circumferential space of inside configuration, steel reinforcement cage is placed in cone shell of column 1 and forms by concrete prefabricated, bores shell of column
1 inside is hollow section 2, and the sectional area of hollow section 2 is the 30%-50% for boring the sectional area of shell of column 1, and ring flange 3 and steel reinforcement cage weld
It connects or is mechanically connected, by flanged joint, connection built-in fitting 6 is connected to concrete structure for middle part concrete beam 4 and ring flange 3
Top.
Referring to fig. 2, middle part concrete beam 4 and outer concrete crossbeam 5 are connect with concrete slab 7 by bolt 8.It is more
A concrete slab 7 is horizontally disposed to form array structure, a middle part concrete beam 4 and two outer concretes on the ground
Crossbeam 5 is arranged on 7 array structure of concrete slab, and concrete slab 7 and middle part concrete beam 4 and outer concrete are horizontal
The arranged direction of beam 5 is perpendicular.
Referring to Fig. 3, circumferential outer hoop of the steel reinforcement cage by being vertically arranged one week main reinforcement 9 and for tying up or welding main reinforcement 9
Stirrup 11 forms in muscle 10 and circumferential direction.Boring shell of column 1 is cylindrical body or prism structure, middle part concrete beam 4 and external coagulation
Native crossbeam 5, concrete slab 7 are rectangular parallelepiped structure, and the distance at 3 bottom of hollow section to 3 top of ring flange is not less than middle part coagulation
The thickness of native crossbeam 4 adds the thickness of concrete slab 7, can hollow or filling non-concrete substance in hollow section 3.
Referring to Fig. 3, position among basic outer wall and inner wall, strong concrete used in main body concrete structure are placed under steel reinforcement cage
It spends grade and is not less than C30, the intensity of main reinforcement 9 is not less than HRB400.
Supporting section is vertically arranged, and the cone shell of column 1 is rotary table column or truncated rectangular pyramids pillar construction；The hollow section 2
Using hollow structure or filling non-concrete substance, non-concrete substance such as the backfilling of earthwork after constructing.2 bottom of hollow section is to method
The thickness of distance >=middle part concrete beam 4 thickness+concrete slab 7 at blue 3 top of disk.The middle part concrete beam
4 and outer concrete crossbeam 5 and concrete slab 7 connect by bolt 8；Ring flange 3 and bolt 8 use anti-corrosion material system
At perhaps preparing anticorrosive coating surface layer on surface or the composite layer of brushing anticorrosive coating carry out again in spray, on zinc coat
Protection.
The assembling process of the prefabricated assembled cored slab column foundation of the utility model is as follows:
1. first according to key dimension, be supported section, ring flange 3, middle part concrete beam 4, outer concrete crossbeam 5,
Concrete slab 7 it is prefabricated, supporting section includes the cone shell of column 1 from top to bottom set gradually, hollow section 2 and built-in fitting 6；
2. transporting prefabricated components to scene；
3. positioning concrete slab 7, middle part concrete beam 4, outer concrete crossbeam 5 are connect with concrete slab 7.
4. scene carries out excavation of foundation pit, and carries out Leveling and centering to the place after excavation.
5. the combined member of lifting middle part concrete beam 4, outer concrete crossbeam 5 and concrete slab 7.
6. the embedded bar of positioning middle part concrete beam 4 connects principal post section 1 and middle part concrete 4 by ring flange 3
It connects.
7. backfilling of earthwork.
Note: according to the actual situation 3., 4. process can also overturn, and can first carry out excavation of foundation pit, then lift 7 He of concrete slab
Middle part concrete beam 4, outer concrete crossbeam 5 are connected in foundation pit by bolt 8.Meanwhile saving process 5..
From heavy and light, splicing component volume is small on the basis of the utility model, saves transportation cost and hoisting difficulty, reduces
Concrete material amount and dead load, structure design are more economical.Precast concrete shorten construction period, ensure that it is mixed
Solidifying soil property amount；The construction technology fastly dug and fill out fastly reduces the base pit engineering difficulty and security risk of unfavorable foundation, overall reduction work
Journey cost increases feasibility and application range of the prefabricated assembled basis under have inconvenient traffic benefit and complicated environmental condition.
Above embodiments are merely to illustrate the technical solution of the utility model rather than its limitations, implementation described herein
Example is only a part of the embodiment of the utility model, and not all embodiment.Although practical to this referring to above-described embodiment
It is novel to be described in detail, those of ordinary skill in the art still can specific embodiment to the utility model into
Row modification or equivalent replacement, these are without departing from any modification of the spirit and scope of the utility model or equivalent replacement,
Within the claims of the utility model.
Claims (9)
1. a kind of assembled for transmission line of electricity bores column-sheet-pile composite foundation, it is characterised in that: including pedestal and be connected to
Supporting section on pedestal；The supporting section includes cone shell of column (1), and the top of cone shell of column (1) is connected with built-in fitting (6), bores column
It is hollow section (2) that the bottom of cone shell of column (1) is provided with ring flange (3) inside section (1)；The pedestal includes middle part concrete
Crossbeam (4) and concrete slab (7), middle part concrete beam (4) is by flange and bores the ring flange (3) of shell of column (1) bottom even
It connects；The long side two sides of middle part concrete beam (4) are arranged in parallel with outer concrete crossbeam (5) respectively, more concrete slabs
(7) it is arranged in parallel to form array structure, middle part concrete beam (4) and outer concrete crossbeam (5) are arranged on array structure
And it is fixed to each other.
2. the assembled according to claim 1 for transmission line of electricity bores column-sheet-pile composite foundation, it is characterised in that: institute
The cone shell of column (1) stated is formed by steel reinforcement cage and concreting, and steel reinforcement cage and ring flange (3) are welded or are mechanically connected.
3. the assembled according to claim 2 for transmission line of electricity bores column-sheet-pile composite foundation, it is characterised in that: steel
Muscle cage includes several main reinforcements (9) for being vertically arranged one week, and main reinforcement (9) is inside and outside to be respectively disposed with the outer stirrup (10) of circumferential direction and circumferential direction
Interior stirrup (11)；Main reinforcement (9) is tied up or is welded to connect with circumferential outer stirrup (10) and stirrup (11) in circumferential direction, circumferential outer stirrup
(10) there are the gaps equal with main reinforcement (9) diameter between stirrup (11) in circumferential direction.
4. the assembled according to claim 3 for transmission line of electricity bores column-sheet-pile composite foundation, it is characterised in that: institute
The strength grade of concrete used in supporting section is stated not less than C30, the intensity of main reinforcement (9) is not less than HRB400.
5. the assembled according to claim 1 for transmission line of electricity bores column-sheet-pile composite foundation, it is characterised in that: institute
Hollow section (2) and cone shell of column (1) coaxial arrangement are stated, the sectional area of hollow section (2) is the 30%- for boring the sectional area of shell of column (1)
50%.
6. boring column-sheet-pile composite foundation for the assembled of transmission line of electricity according to claim 1 or 5, it is characterised in that:
The thickness of distance >=middle part concrete beam (4) thickness+concrete slab (7) at the top of hollow section (2) bottom to ring flange (3)
Degree.
7. the assembled according to claim 1 for transmission line of electricity bores column-sheet-pile composite foundation, it is characterised in that: institute
The middle part concrete beam (4) stated and outer concrete crossbeam (5) are rectangular parallelepiped structure.
8. the assembled according to claim 1 for transmission line of electricity bores column-sheet-pile composite foundation, it is characterised in that: institute
The cone shell of column (1) stated is rotary table column or truncated rectangular pyramids pillar construction.
9. the assembled according to claim 1 for transmission line of electricity bores column-sheet-pile composite foundation, it is characterised in that: institute
The hollow section (2) stated is using hollow structure or filling non-concrete substance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821980203.1U CN209211482U (en) | 2018-11-27 | 2018-11-27 | A kind of assembled cone column-sheet-pile composite foundation for transmission line of electricity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821980203.1U CN209211482U (en) | 2018-11-27 | 2018-11-27 | A kind of assembled cone column-sheet-pile composite foundation for transmission line of electricity |
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| Publication Number | Publication Date |
|---|---|
| CN209211482U true CN209211482U (en) | 2019-08-06 |
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ID=67461991
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821980203.1U Active CN209211482U (en) | 2018-11-27 | 2018-11-27 | A kind of assembled cone column-sheet-pile composite foundation for transmission line of electricity |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109386007A (en) * | 2018-11-27 | 2019-02-26 | 中国电力工程顾问集团西北电力设计院有限公司 | Assembled for transmission line of electricity bores column-sheet-pile composite foundation and its construction method |
-
2018
- 2018-11-27 CN CN201821980203.1U patent/CN209211482U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109386007A (en) * | 2018-11-27 | 2019-02-26 | 中国电力工程顾问集团西北电力设计院有限公司 | Assembled for transmission line of electricity bores column-sheet-pile composite foundation and its construction method |
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