CN204753621U - Power transmission sequence iron tower is with compound basis - Google Patents
Power transmission sequence iron tower is with compound basis Download PDFInfo
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- CN204753621U CN204753621U CN201520407440.9U CN201520407440U CN204753621U CN 204753621 U CN204753621 U CN 204753621U CN 201520407440 U CN201520407440 U CN 201520407440U CN 204753621 U CN204753621 U CN 204753621U
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- spiral anchor
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- angle steel
- batter post
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Abstract
The utility model provides a power transmission sequence iron tower is with compound basis which characterized in that: constitutes by angle steel formula batter post basis and spiral anchor foundation two parts, the batter post adoption and the same slope of upper portion body of the tower owner material on angle steel formula batter post basis, the conical locating place of steel pipe adoption of spiral anchor foundation, the steel pipe anchor of spiral anchor foundation is in angle steel formula batter post basis. Have the spiral anchor batter post formula basis make full use of the characteristic of upper portion step basis and the work of lower part spiral anchor foundation tunable. Wherein step basis in upper portion can provide horizontal force, overdraft and go up the anti power of pull out force, and lower part spiral anchor foundation then mainly provides the up -pull bearing capacity, can effectively satisfy deformation and the requirement of bearing capacity under weak soil, the big loading condition in marsh or network of waterways area transmission line iron tower basis, can reduce cubic metre of earth excavation volume and base material quantity effectively, construction convenience, the feature of environmental protection can with the economic performance superiority.
Description
Technical field
The utility model relates to the basic field of power line tower.
Background technology
The area of the heavy mechanical equipment constructional difficulties such as transmission line of electricity weak soil or marsh at home, spiral anchor base has that speed of application is fast, efficiency of construction is high, reduces the advantage such as labour intensity and construction costs, but for the transmission line of electricity of current voltage levels, the bearing capacity of iron tower foundation is increasing, simple dependence spiral anchor base cannot meet its bearing capacity and stability requirement, and spiral anchor base is poor for river degradation area applicability.
For inserted angle steel formula inclined column foundation, it is widely used on power transmission sequence.Inclined column foundation has had certain improvement compared with column foundation, due to the minimizing of eccentric bending moment, in check sole plate size can obtain corresponding reduction, thus reduce amount of concrete and the quantity of reinforcement on basis, and this kind of basis is not high to Geological Condition Requirement, is applicable to most of geological conditions, but this basis belongs to heavy excavation basis, earthwork excavated volume is still comparatively large, and from engineering in the past, environmental-protecting performance is not high.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of bolts of inclined column type composite foundation with Screw Anchor, for the tower position of soft foundation, can meet the environmental protection requirement of engineering construction, saves quantity of material.
For solving the problems of the technologies described above, the utility model provides a kind of power line tower composite foundation, it is characterized in that: be made up of angle steel formula inclined column foundation and spiral anchor base two parts, the batter post of angle steel formula inclined column foundation adopts the gradient identical with the main material of top tower body, the steel pipe of spiral anchor base adopts the putting position of taper, and the steel pipe of spiral anchor base is anchored in angle steel formula inclined column foundation.
The anchor plate with holes that the steel pipe of spiral anchor base is welded by its upper end and bolt anchoring are in the chassis of angle steel formula inclined column foundation.
Bolts of inclined column type basis with Screw Anchor takes full advantage of the characteristic of upper step basis and the work of lower part helical anchor foundation tunable.Wherein upper step basis can provide the drag of horizontal force, downforce and uplift force, lower part helical anchor foundation then mainly provides upper and low approximations, effectively can meet the requirement of distortion under weak soil, marsh or the large loading condition of River Network power transmission line iron tower foundation and bearing capacity, effectively can reduce earthwork excavated volume and basic material consumption, easy construction, environmental-protecting performance and economic performance superior.
Accompanying drawing explanation
Fig. 1 is the bolts of inclined column type composite foundation elevation with Screw Anchor;
Fig. 2 is the bolts of inclined column type composite foundation plan view with Screw Anchor;
Fig. 3 is spiral anchor base partial schematic diagram;
Fig. 4 is the sectional view along A-A line in Fig. 3;
Fig. 5 is the sectional view along B-B line in Fig. 3.
1 represents angle steel formula inclined column foundation;
2 represent the cuspidated steel pipe parts of band in spiral anchor base part;
3 anchor bolts representing two end band screw threads of break-through steel pipe in spiral anchor base part;
4 represent the annular anchor plate with holes in spiral anchor base part on welded steel pipe outward flange;
5 deep floors representing the annular anchor plate in spiral anchor base part on welded steel pipe outward flange;
6 spiral vanes representing the steel pipe in spiral anchor base part;
7 represent the inserted angle steel be connected with steel tower tower leg.
Detailed description of the invention
With reference to Fig. 1,2, the inserted angle steel 7 that the utility model mainly comprises angle steel formula inclined column foundation 1 that steel concrete forms, the steel pipe parts 2 of spiral anchor base, spiral vane 6 and is connected with superstructure, inserted angle steel 7 is anchored in steel concrete batter post, for being connected with the main material of steel tower
With reference to Fig. 3,4,5, steel pipe parts 2 upper end weldering annular anchor plate 4 with holes and bolt 3, be anchored in the chassis of angle steel formula inclined column foundation 1.Spiral vane 6 is welded near steel pipe parts 2 lower end position.The bolt hole of annular anchor plate 4 with holes keeps for construction, makees bind precession instrument and uses.
During construction, first excavation pit, then adopts machinery or the every root Screw Anchor of manual type precession in foundation ditch, and reserves the anchorage length part of Screw Anchor, then cast in foundation ditch with inserted angle steel formula inclined column foundation part.Under the condition that construction machinery allows, Screw Anchor steel pipe axis and vertical direction can be angled, can produce larger basic drag.The mode that screw anchor foundation construction precession can adopt manually or machinery creeps into.
Angle steel formula inclined column foundation belongs to excavation foundation, and its resistance to plucking Computing Principle adopts the heavy method of soil, and spiral anchor base belongs to raw fly ash, and its resistance to plucking Computing Principle adopts bearing capacity method or cylinder shearing method.
For the uplift force that top iron tower structure transmits, composite foundation carries out the distribution of power by step foundation and spiral anchor base part, works simultaneously, bears respectively.For horizontal force, provide drag by the side direction soil by step basis.For downforce, provide counter-force primarily of the soil body under step sole plate.
Claims (2)
1. a power line tower composite foundation, it is characterized in that: be made up of angle steel formula inclined column foundation and spiral anchor base two parts, the batter post of angle steel formula inclined column foundation adopts the gradient identical with the main material of top tower body, the steel pipe of spiral anchor base adopts the putting position of taper, and the steel pipe of spiral anchor base is anchored in angle steel formula inclined column foundation.
2. power line tower composite foundation according to claim 1, is characterized in that: the anchor plate with holes that the steel pipe of spiral anchor base is welded by its upper end and bolt anchoring are in the chassis of angle steel formula inclined column foundation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520407440.9U CN204753621U (en) | 2015-06-15 | 2015-06-15 | Power transmission sequence iron tower is with compound basis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520407440.9U CN204753621U (en) | 2015-06-15 | 2015-06-15 | Power transmission sequence iron tower is with compound basis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204753621U true CN204753621U (en) | 2015-11-11 |
Family
ID=54468346
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520407440.9U Active CN204753621U (en) | 2015-06-15 | 2015-06-15 | Power transmission sequence iron tower is with compound basis |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204753621U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107288144A (en) * | 2016-04-09 | 2017-10-24 | 河南城建学院 | Resistance to plucking and antiskid basis and its construction method |
| CN110241840A (en) * | 2019-06-06 | 2019-09-17 | 浙江华云电力工程设计咨询有限公司 | A kind of premade shells Screw Anchor composite foundation and construction method |
| CN111364490A (en) * | 2020-03-25 | 2020-07-03 | 上海勘测设计研究院有限公司 | High pile cap foundation based on driven and rotated piles and construction method thereof |
| CN111576463A (en) * | 2020-04-02 | 2020-08-25 | 国网浙江省电力有限公司湖州供电公司 | Steel pipe spiral anchor pile group foundation |
-
2015
- 2015-06-15 CN CN201520407440.9U patent/CN204753621U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107288144A (en) * | 2016-04-09 | 2017-10-24 | 河南城建学院 | Resistance to plucking and antiskid basis and its construction method |
| CN110241840A (en) * | 2019-06-06 | 2019-09-17 | 浙江华云电力工程设计咨询有限公司 | A kind of premade shells Screw Anchor composite foundation and construction method |
| CN111364490A (en) * | 2020-03-25 | 2020-07-03 | 上海勘测设计研究院有限公司 | High pile cap foundation based on driven and rotated piles and construction method thereof |
| CN111576463A (en) * | 2020-04-02 | 2020-08-25 | 国网浙江省电力有限公司湖州供电公司 | Steel pipe spiral anchor pile group foundation |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |