CN201598647U - Self-supporting tower foundation of electric transmission and transformation iron tower - Google Patents
Self-supporting tower foundation of electric transmission and transformation iron tower Download PDFInfo
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- CN201598647U CN201598647U CN2010200393296U CN201020039329U CN201598647U CN 201598647 U CN201598647 U CN 201598647U CN 2010200393296 U CN2010200393296 U CN 2010200393296U CN 201020039329 U CN201020039329 U CN 201020039329U CN 201598647 U CN201598647 U CN 201598647U
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Abstract
The utility model discloses a self-supporting tower foundation of an electric transmission and transformation iron tower, which comprises an ultra-high-voltage transmission line iron tower, foundation columns, miniature piles, foundation column reinforcing bars, folding plate reinforcing bars and bottom plate reinforcing bars, the miniature piles penetrate through muddy loams to enter a hard plastic clay layer, tops of the four miniature piles are connected with the folding plate reinforcing bars, a folding plate, a foundation bottom plate, the folding plate reinforcing bars and the bottom plate reinforcing bars, the four miniature piles are integrated with the folding plate, the foundation bottom plate, the folding plate reinforcing bars and the bottom plate reinforcing bars, the foundation column reinforcing bars are connected with reinforcing bars of the folding plate and the miniature piles, and the ultra-high-voltage transmission line iron tower is connected with a screw cap through a foundation bolt. The foundation columns consist of foundation column reinforcing bars and poured concrete, tops of the foundation columns are embedded with foundation bolts, each foundation column is provided with four foundation bolts, and centers of the foundation bolts are located on the inner side of a foundation upright column. The self-supporting tower foundation of an electric transmission and transformation iron tower is simple in structure, convenient in construction and suitable for foundations with shallower supporting layers and foundations with thicker hard layers.
Description
Technical field
The utility model relates to the power transmission and transformation iron tower self-supporting steel tower basis of power transmission and transformation line a kind of folded sheet+mini pile in weak mud.Be suitable for more shallow ground of bearing stratum buried depth and the thicker ground of crust layer.
Technical background
Gezhouba Water Control Project is to about 327 kilometers of 500 kilovolts of important transmission line of electricity total lengths in Wuchang, wherein PengPeng Hu-to about about 130 kilometers of only Cang Hu, be the Plain landforms, go up and be mud matter lam and silt clay alternating layers, based on mud matter lam, a folder thin layer powder fine sand, soft moulding is main, secondly be plastic interlayer, about thick about 10m, in be grey fine silt, in close, this layer thickness is about 55-65m, and 80m is following to be basement rock.And only Cang Hu to the Wuchang kV Substation about 50 kilometers upward is mud matter and mud matter lam layer, and soft moulding is main, be mingled with some plastic shape thin layers, its thickness is about 15-20m, and the middle level is a fine sand layer, in close, about thick about 60m, be basement rock about the 80m of lower floor.According to above-mentioned geological condition, big slab foundation and pile type foundation have been adopted in former design, wherein the form of structure of big plate base allows that by ground carrying is divided into 3.0m * 3.0m, 3.6m * 3.6m, four design series of 4.2m * 4.2m, 4.8m * 4.8m, the stake footpath of pile foundation be φ 1000mm, and long have 9m, 12m, 15m, 20m, five kinds of length of 25m respectively.Because original slab foundation V column foot forms of drawing that adopt more, exist occupy cultivated land many, problems such as the prestressing force frequent adjustment of needs of backguy and anti-pulling and the effect of toppling are bad, especially as continue under the situation that snow disaster and storm wind weather increases gradually, its security and stability is faced with great threat.
In general, weak soil matter area pole and tower foundation has become link very weak in the transmission line construction, ground is handled and basic pattern is selected and design optimization then is the key subjects that weak soil matter area work transmission line presses for solution, transforms very urgent to the ultra high-tension transmission line column foot plinth in soft foundation area.At present Central China Power Grid company has determined to the engineering construction that undergoes technological transformation of this circuit, wherein research and propose new advanced technology, safe and reliable to operation, economical rationality independence tower basis and design and calculation method thereof, for the design and the construction of 500kV transmission line of alternation current column foot provides foundation, be an important and unavoidable key subject.The expection achievement in research will have important engineering application value, also help promoting simultaneously soft foundation area ultra high-tension transmission line column foot plinth technological innovation and design theory level.
The power transmission and transformation self-supporting steel tower basis of folded sheet+mini pile is a support with ongoing self tower improvement project, on the basis of the aspect situations such as characteristics, construction reinforcement control measures and engineering geology of fully investigating and analysing circuit mud along the line stratum, the method that combines by numerical simulation (emulation), indoor physical model experiment, engineering site investigation, soil test, propose corresponding tower-base structure form and practicable engineering construction technical measures, guarantee the operation stability of column foot in the weak mud of ehv power transmission circuit.
Summary of the invention
The purpose of this utility model is to be to provide a kind of power transmission and transformation iron tower self-supporting steel tower basis (folded sheet+mini pile), simple in structure, easy construction, bearing vertical force and horizontal force and overturning moment jointly by folded sheet and four mini piles, is to reduce the area of plate and increase the ability of folded sheet to increase horizontal force resistant and to topple on the basis of the basic pattern that adopts " slab-foundation+single pile (mini pile) ".Guaranteed the operation stability of column foot in the weak mud of ehv power transmission circuit.
In order to realize above-mentioned task, the utility model adopts following technical measures:
A kind of power transmission and transformation iron tower self-supporting steel tower basis, it is made up of ultra high-tension transmission line iron tower, nut, pilum, folded sheet, mini pile, sole plate, stone bolt, pilum reinforcing bar, folded sheet reinforcing bar, base plate reinforcing bar, mini pile reinforcing bar, lam, mud matter lam, mud matter lam, lam.Its annexation is: the mini pile stake directly is 350-500mm, stake is long to be 8-15m, must pass mud matter lam during miniature pile construction, mud matter lam enters the hard plastic clay layer, four mini pile stake tops link to each other with the folded sheet reinforcing bar, four mini pile stake tops link to each other with folded sheet, sole plate, folded sheet reinforcing bar, base plate reinforcing bar, and four mini piles and folded sheet, sole plate, folded sheet reinforcing bar, base plate reinforcing bar form an integral body.The pilum reinforcing bar links to each other with the reinforcing bar of folded sheet and mini pile and forms an integral body, pilum is made up of the pilum reinforcing bar and the concrete of building, in pilum top pre-embedded anchoring bolts, each pilum has four stone bolt, the stone bolt center is in the inboard of basic column, the position of eccentric column center 200mm.The ultra high-tension transmission line iron tower links to each other with nut by stone bolt.Pilum, pilum reinforcing bar link to each other with reinforcing bar, folded sheet reinforcing bar, base plate reinforcing bar, the mini pile reinforcing bar of folded sheet, sole plate and mini pile and form an integral body.
Embeded depth of foundation is (in a crust layer) about 1.5m.The folding plate hight in basis is 250 to 400mm square, and length and width are of a size of 4000mm to 5000mm; The folded sheet second layer is contracted to the bottom for the plane of 3000mm * 3000mm to 4000mm * 4000mm by the inclined-plane, highly is about 350mm.The basis concrete is C35, and the basis all is added with the M10 level bed course of 100mm.Pile foundation is the M35 mortar injection.The main tendon protective layer in basis (except that specified otherwise) is 35mm.
The pilum cross dimensions be 600mm to 800mm, the pilum height is about 1500mm, is unearthed to be 500mm.Simple in structure, easy construction, the power transmission and transformation self-supporting steel tower basis of folded sheet+mini pile is by folded sheet and folded sheet and mini pile combination, improve two kinds of bases vertical and horizontal bearing characteristic and improvement foundation uneven settlement characteristic under horizontal loads under the weak substratum foundation condition of mud matter, strengthen the job stability on basis on the deep mud substratum.
Description of drawings
Fig. 1 is a kind of power transmission and transformation iron tower self-supporting steel tower foundation structure schematic diagram
A kind of power transmission and transformation iron tower of Fig. 2 self-supporting steel tower foundation structure sectional drawing
Among the figure: 1. ultra high-tension transmission line iron tower, 2. nut, 3. pilum, 4. folded sheet, 5. mini pile, 6. sole plate, 7. stone bolt, 8. pilum reinforcing bar, 9. folded sheet reinforcing bar, 10. base plate reinforcing bar, 11. mini pile reinforcing bar 12. lam, 13. mud matter lam, 14. mud matter lam, 15. lam
The specific embodiment
Below in conjunction with accompanying drawing the utility model is further described:
A kind of power transmission and transformation iron tower self-supporting steel tower basis, it is made up of ultra high-tension transmission line iron tower 1, nut 2, pilum 3, folded sheet 4, mini pile 5, sole plate 6, stone bolt 7, pilum reinforcing bar 8, folded sheet reinforcing bar 9, base plate reinforcing bar 10, mini pile reinforcing bar 11, lam 12, mud matter lam 13, mud matter lam 14, hard plastic clay layer 15.Its annexation is: 5 footpaths of mini pile are 350-500mm, stake is long to be 8-15m, mini pile 5 must pass mud matter lam 13 when constructing, mud matter lam 14 enters hard plastic clay layer 15,5 tops of four mini piles link to each other with folded sheet reinforcing bar 9,5 tops of four mini piles link to each other with folded sheet 4, sole plate 6, folded sheet reinforcing bar 9, base plate reinforcing bar 10, and four mini piles 5 form an integral body with folded sheet 4, sole plate 6, folded sheet reinforcing bar 9, base plate reinforcing bar 10.Pilum reinforcing bar 8 links to each other with the reinforcing bar of folded sheet 4 with mini pile 5, form an integral body, pilum 3 is made up of the pilum reinforcing bar 8 and the concrete of building, in pilum 3 top pre-embedded anchoring bolts 7, each pilum 3 has four stone bolt 7, stone bolt 7 centers are in the inboard of basic column, the position of eccentric column center 200mm.Ultra high-tension transmission line iron tower 1 links to each other with nut 2 by stone bolt 7.Pilum 3, pilum reinforcing bar 8 link to each other with reinforcing bar, folded sheet reinforcing bar 9, base plate reinforcing bar 10, the mini pile reinforcing bar 11 of folded sheet 4, sole plate 6 and mini pile 5, form an integral body.
1, mini pile 5 constructions:
Adopt the vertical shaft rotary drill, stake footpath: the thick mattress layer of 100mm is set under the D=350mm, foundation bed.Working procedure is: unwrapping wire location → machinery is in place → pore-forming → transfer tremie → clear hole → concreting.5 of mini piles are long to be 8-15m, and mini pile 5 must pass mud matter lam 13, mud matter lam 14 enters 5 tops of 15, four mini pile of hard plastic clay layer and links to each other with the folded sheet reinforcing bar, forms an integral body with the folded sheet reinforcing bar.
2, folded sheet 4, sole plate 6 constructions:
Embeded depth of foundation is (in crust layer 12) about 1.5m.The square of folded sheet 4, sole plate 6 high 250-400mm, length and width are of a size of 4000mm to 5000mm; Folded sheet 4, sole plate 6 second layers are contracted to the bottom for the plane of 3000mm * 3000mm to 4000mm * 4000mm by the inclined-plane, highly are about 350mm.The basis concrete is C35, and the basis all is added with the M10 level bed course of 100mm.Pile foundation is the M35 mortar injection.The main tendon protective layer in basis (except that specified otherwise) is 35mm.
3, pilum 3 constructions:
Pilum 3 cross dimensionss are 600mm-800mm, pilum 3 height are about 1500mm, being unearthed is 500mm, and pilum 3, pilum reinforcing bar 8 link to each other with pilum reinforcing bar 8, folded sheet reinforcing bar 9, base plate reinforcing bar 10, the mini pile reinforcing bar 11 of folded sheet 4, sole plate 6 and mini pile 5, form an integral body.Pilum 3 is made up of the pilum reinforcing bar 8 and the concrete of building, and in pilum 3 top pre-embedded anchoring bolts 7, each pilum has four stone bolt 7, and stone bolt 7 centers are in the inboard of basic column, the position of eccentric column center 200mm.
4, the installation of ultra high-tension transmission line iron tower:
Ultra high-tension transmission line iron tower 1 is connected with nut 2 by stone bolt 7.
Claims (4)
1. power transmission and transformation iron tower self-supporting steel tower basis, it is by ultra high-tension transmission line iron tower (1), pilum (3), mini pile (5), pilum reinforcing bar (8), folded sheet reinforcing bar (9), base plate reinforcing bar (10), mini pile reinforcing bar (11), it is characterized in that: mini pile (5) stake footpath is 350--500mm, stake is long to be 8-15m, mini pile (5) passes mud matter lam (13), mud matter lam (14) enters hard plastic clay layer (15), four mini piles (5) stake top links to each other with folded sheet reinforcing bar (9), four mini piles (5) stake top and folded sheet (4), sole plate (6), folded sheet reinforcing bar (9), base plate reinforcing bar (10) links to each other, four mini piles (5) and folded sheet (4), sole plate (6), folded sheet reinforcing bar (9), base plate reinforcing bar (10) forms an integral body, pilum reinforcing bar (8) links to each other with the reinforcing bar of folded sheet (4) with mini pile (5), and ultra high-tension transmission line iron tower (1) links to each other with nut (2) by stone bolt (7).
2. a kind of power transmission and transformation iron tower self-supporting steel tower according to claim 1 basis, it is characterized in that: described pilum (3) is made up of the pilum reinforcing bar (8) and the concrete of building, in pilum (3) top pre-embedded anchoring bolts (7), each pilum (3) has four stone bolt (7), and stone bolt (7) center is in the inboard of basic column.
3. a kind of power transmission and transformation iron tower self-supporting steel tower according to claim 1 basis is characterized in that: described pilum (3), pilum reinforcing bar (8) link to each other with reinforcing bar, folded sheet reinforcing bar (9), base plate reinforcing bar (10), the mini pile reinforcing bar (11) of folded sheet (4), sole plate (6) and mini pile (5) and form whole.
4. a kind of power transmission and transformation iron tower self-supporting steel tower according to claim 1 basis, it is characterized in that: described pilum (3) section is 600mm-800mm, pilum (3) height is 1500mm, is unearthed to be 500mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200393296U CN201598647U (en) | 2010-01-05 | 2010-01-05 | Self-supporting tower foundation of electric transmission and transformation iron tower |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200393296U CN201598647U (en) | 2010-01-05 | 2010-01-05 | Self-supporting tower foundation of electric transmission and transformation iron tower |
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| CN201598647U true CN201598647U (en) | 2010-10-06 |
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| CN2010200393296U Expired - Lifetime CN201598647U (en) | 2010-01-05 | 2010-01-05 | Self-supporting tower foundation of electric transmission and transformation iron tower |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102493495A (en) * | 2011-11-23 | 2012-06-13 | 中南大学 | Method and structure for reinforcing high voltage transmission tower |
| CN103469810A (en) * | 2013-09-26 | 2013-12-25 | 国家电网公司 | Independent foundation of power transmission tower |
| CN103469809A (en) * | 2013-09-26 | 2013-12-25 | 国家电网公司 | Complete board type foundation of power transmission tower |
| CN103597142A (en) * | 2011-03-08 | 2014-02-19 | 阿文戈亚太阳能新技术有限公司 | Device and method for laying the foundations of a solar collector supporting structure in the ground |
| CN104264703A (en) * | 2014-10-08 | 2015-01-07 | 国家电网公司 | Miniature vertical-oblique combined pile for power transmission tower |
| CN107675737A (en) * | 2017-11-13 | 2018-02-09 | 国网山东省电力公司德州供电公司 | A kind of transmission line of electricity high voltage iron tower and the bracing means on basis |
| CN108335618A (en) * | 2018-04-26 | 2018-07-27 | 山东科技大学 | Pile Foundation of Wharf teaching mode containing taper pile |
| CN112779925A (en) * | 2021-01-04 | 2021-05-11 | 刘财秀 | Combined electric tower pile foundation |
-
2010
- 2010-01-05 CN CN2010200393296U patent/CN201598647U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103597142A (en) * | 2011-03-08 | 2014-02-19 | 阿文戈亚太阳能新技术有限公司 | Device and method for laying the foundations of a solar collector supporting structure in the ground |
| CN102493495A (en) * | 2011-11-23 | 2012-06-13 | 中南大学 | Method and structure for reinforcing high voltage transmission tower |
| CN102493495B (en) * | 2011-11-23 | 2013-11-06 | 中南大学 | Method and structure for reinforcing high voltage transmission tower |
| CN103469810A (en) * | 2013-09-26 | 2013-12-25 | 国家电网公司 | Independent foundation of power transmission tower |
| CN103469809A (en) * | 2013-09-26 | 2013-12-25 | 国家电网公司 | Complete board type foundation of power transmission tower |
| CN104264703A (en) * | 2014-10-08 | 2015-01-07 | 国家电网公司 | Miniature vertical-oblique combined pile for power transmission tower |
| CN107675737A (en) * | 2017-11-13 | 2018-02-09 | 国网山东省电力公司德州供电公司 | A kind of transmission line of electricity high voltage iron tower and the bracing means on basis |
| CN108335618A (en) * | 2018-04-26 | 2018-07-27 | 山东科技大学 | Pile Foundation of Wharf teaching mode containing taper pile |
| CN112779925A (en) * | 2021-01-04 | 2021-05-11 | 刘财秀 | Combined electric tower pile foundation |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101006 |
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| CX01 | Expiry of patent term |