CN209723015U - A kind of power line tower composite foundation - Google Patents
A kind of power line tower composite foundation Download PDFInfo
- Publication number
- CN209723015U CN209723015U CN201920359055.XU CN201920359055U CN209723015U CN 209723015 U CN209723015 U CN 209723015U CN 201920359055 U CN201920359055 U CN 201920359055U CN 209723015 U CN209723015 U CN 209723015U
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- China
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- foundation
- tower
- steel pipe
- anchor base
- power line
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Abstract
A kind of power line tower composite foundation, it is characterized by comprising armored concrete flexible foundations and spiral anchor base two large divisions, anchoring has several foundation bolts to constitute foundation bolt group in the principal post of armored concrete flexible foundation, foundation bolt group is eccentric to steel tower center position, for being connected with steel tower tower leg, the steel pipe upper end of spiral anchor base is welded with anchor plate, it is perfused with pea gravel concreten or mortar in steel pipe, the steel pipe and upper end anchor plate integral fastening of spiral anchor base are in forming composite foundation in the bottom plate of armored concrete flexible foundation.The advantages of the utility model binding reinforcement concrete flexible foundation and spiral anchor base, the characteristic for taking full advantage of upper reinforcement concrete flexible foundation and the work of lower part helical anchor foundation tunable, can effectively meet the requirement of clay, sandy soil, weak soil, marsh or deformation and bearing capacity under the big loading condition of River Network power transmission line iron tower foundation.
Description
Technical field
The utility model belongs to power line tower basic technology field, more particularly, to a kind of foundation bolt flexible foundation
The composite foundation combined with spiral anchor base.
Background technique
Normal spiral anchor foundation have speed of application is fast, construction efficiency is high, reduce the advantages such as labor intensity and project cost,
But for the transmission line of electricity of current voltage levels, the active force of iron tower foundation is increasing, merely by spiral anchor base
It is unable to satisfy its bearing capacity and stability requirement, and spiral anchor base is not advantageous for pushing bearing capacity aspect.
Normal flexible shallow foundation is the main foundation pattern used always on power transmission sequence, this kind of basis is to geology item
Part is of less demanding, construction is simple, is applicable to most of geological conditions, has the characteristics that applied widely.But due to transmission of electricity
The base control operating condition of each leg of overhead line structures is all uplift force or lower pressure, vertical force and horizontal force pair with horizontal force component
Substrate generates moment of flexure, makes substrate discontinuity, so that it is simultaneously unknown to improve basic amount of concrete and quantity of reinforcement, economy
It is aobvious.
Utility model content
The purpose of the utility model is to provide a kind of eccentric foundation bolt composite foundation with Screw Anchor, for clay,
Sandy soil, weak soil, marsh or the tower of River Network position, meet its bearing capacity and stability requirement, and substrate uniform force reduces basis
Amount of concrete and quantity of reinforcement, improve basis economy.
To achieve the above object, the utility model provides a kind of power line tower composite foundation, it is characterised in that: including
Armored concrete flexible foundation and spiral anchor base two large divisions, the interior anchoring of the principal post of armored concrete flexible foundation have severally
Foot bolt constitutes foundation bolt group, and foundation bolt group is eccentric to steel tower center position, for being connected with steel tower tower leg, Screw Anchor
The steel pipe upper end on basis is welded with anchor plate, and pea gravel concreten or mortar, the steel pipe of spiral anchor base and upper end are perfused in steel pipe
Anchor plate integral fastening is in forming composite foundation in the bottom plate of armored concrete flexible foundation.
The foundation bolt surrounds rectangular or round, uniform force, improves stability.
The steel pipe axis and vertical direction of the spiral anchor base at 0-20 ° of angle, improve foundation anti-pulling power outward.
It is equipped with hole above the anchor plate, is used for bind precession tool.
Deep floor is set between two neighboring hole below the anchor plate.
The advantages of the utility model binding reinforcement concrete flexible foundation and spiral anchor base, take full advantage of upper reinforcement
The characteristic of concrete flexible foundation and the work of lower part helical anchor foundation tunable, can effectively meet clay, sandy soil, weak soil, marsh
Or the requirement of the deformation and bearing capacity under the big loading condition of River Network power transmission line iron tower foundation.Screw anchor foundation construction precession
The mode manually or mechanically crept into can be used, foundation construction is smaller to soil disturbance, the bearing capacity of undisturbed soil can be given full play to,
Its structure is simple, and reliable operation, mechanized operation is strong, effectively reduces earthwork excavated volume, reduces artificial investment and disappears with material
Consumption, with compared with conventional bases other under geological conditions, composite foundation economic benefit is good, and because its construction is not limited by season
System, speed of application is fast, while reducing environmental pollution, the construction period is greatly shortened, to power transmission line roadbed of pioneering and inventing
Plinth form of construction work is of great significance.
The utility model is through analytical calculation, armored concrete flexible foundation part and spiral anchor base under ultimate bearing capacity
Part can cooperate, and resist external load well.It is small using the utility model excavation of foundation pit amount through comparing, meet engineering
Quantity of material is saved in the environmental protection requirement of construction.
Detailed description of the invention
Fig. 1 is the eccentric foundation bolt composite foundation elevation with Screw Anchor；
Fig. 2 is the eccentric foundation bolt composite foundation plan view with Screw Anchor；
Fig. 3 is spiral anchor base partial schematic diagram；
Fig. 4 is the cross-sectional view of the line A-A along Fig. 3；
Fig. 5 is the cross-sectional view of the line B-B along Fig. 3.
In figure:
1 represents the bottom parts of armored concrete flexible foundation；
2 represent in spiral anchor base part with cuspidated steel pipe；
3 represent the Steel coil shape blade in spiral anchor base part；
4 represent the foundation bolt connecting with steel tower tower leg；
5 represent the principal post of armored concrete flexible foundation；
6 represent the endless foraminous anchor plate in spiral anchor base part on welded still pipe outer edge；
7 represent the deep floor of the annular anchor plate in spiral anchor base part on welded still pipe outer edge；
8 represent the interior pea gravel concreten or mortar being perfused of steel pipe component in spiral anchor base part.
Specific embodiment
The preferred embodiment of the utility model is illustrated below, it should be understood that preferred embodiment described herein
It is only used for describing and explaining the present invention, is not used to limit the utility model.
Referring to Fig.1, Fig. 2, the utility model mainly include armored concrete flexible foundation and spiral anchor base two large divisions,
Anchoring has 4 foundation bolts in the principal post 5 of armored concrete flexible foundation, and the foundation bolt group that 4 foundation bolts surround is in side
Shape and eccentric to steel tower center position, for being connected with steel tower tower leg.The wobbler action of foundation bolt group is vertical in order to make
The moment of flexure that power and horizontal force generate substrate offsets, and for substrate, change eccentric force reduces or eliminates substrate into axial force
Discontinuity also makes each Screw Anchor uniform force, to reduce the quantity of material on basis.It is filled in the steel pipe 2 of spiral anchor base
It is marked with pea gravel concreten or mortar 8.2 upper end welding hole circular ring shape anchor plate 6 of steel pipe, circular ring shape anchor plate 6 below adjacent two hole
Between be arranged triangle deep floor 7, steel pipe 2, circular ring shape anchor plate 6 and 7 three's integral fastening of triangle deep floor are in steel
In the bottom plate 1 of reinforced concrete flexible foundation.3 uniform welding of spiral vane is in 2 lower part of steel pipe, the bolt of circular ring shape anchor plate 6
Construction is kept in hole, does bind precession tool use.
To increase rigidity of the steel pipe when constructing precession, pea gravel concreten or mortar 8 should be filled into advance in steel pipe 2, to
It can precession use after to solidification.
Elder generation's excavation pit when construction, then using mechanically or manually mode every perfusion pea gravel concreten of precession in foundation pit
Or the Screw Anchor of mortar, and the anchorage length part of Screw Anchor is reserved, it is then cast in foundation pit with eccentric foundation bolt
Flexible foundation part.Under conditions of construction machinery allows, Screw Anchor steel pipe axis is overlapped with vertical direction, can be generated bigger
Foundation anti-pulling power.For the basic role power that top iron tower structure transmits, uplift force component can by step foundation and
Spiral anchor base part carries out the distribution of power, works at the same time, undertakes respectively.For horizontal force, the lateral of step basis will be passed through
Soil provides drag.For lower pressure, Foundation pressure mainly is provided by the soil body under step sole plate.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, although ginseng
The utility model is described in detail according to previous embodiment, it for those skilled in the art, still can be with
It modifies to the technical solution of previous examples or equivalent replacement of some of the technical features.It is all in the utility model
Spirit and principle within any modification, equivalent substitution and improvement done, should be included in the protection scope of the utility model it
It is interior.
Claims (5)
1. a kind of power line tower composite foundation, it is characterised in that: including armored concrete flexible foundation and spiral anchor base
Two large divisions, the interior anchoring of the principal post of armored concrete flexible foundation have several foundation bolts to constitute foundation bolt groups, foundation bolt
Group is eccentric to steel tower center position, and for being connected with steel tower tower leg, the steel pipe upper end of spiral anchor base is welded with anchor plate, steel pipe
It is inside perfused with pea gravel concreten or mortar, the steel pipe and upper end anchor plate integral fastening of spiral anchor base are in armored concrete flexibility
Composite foundation is formed in the bottom plate on basis.
2. a kind of power line tower composite foundation according to claim 1, it is characterised in that: the foundation bolt encloses
Squarely or circle.
3. a kind of power line tower composite foundation according to claim 1, it is characterised in that: the spiral anchor base
Steel pipe axis and vertical direction outward at 0-20 ° of angle, improve foundation anti-pulling power.
4. a kind of power line tower composite foundation according to claim 1, it is characterised in that: above the anchor plate
Equipped with hole, used for bind precession tool.
5. a kind of power line tower composite foundation according to claim 1, it is characterised in that: below the anchor plate
Deep floor is set between two neighboring hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920359055.XU CN209723015U (en) | 2019-03-21 | 2019-03-21 | A kind of power line tower composite foundation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920359055.XU CN209723015U (en) | 2019-03-21 | 2019-03-21 | A kind of power line tower composite foundation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209723015U true CN209723015U (en) | 2019-12-03 |
Family
ID=68687621
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920359055.XU Expired - Fee Related CN209723015U (en) | 2019-03-21 | 2019-03-21 | A kind of power line tower composite foundation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209723015U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023071327A1 (en) * | 2021-10-27 | 2023-05-04 | 中国电建集团山东电力建设第一工程有限公司 | Fabricated flexible damping screw anchor foundation and power transmission tower |
-
2019
- 2019-03-21 CN CN201920359055.XU patent/CN209723015U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023071327A1 (en) * | 2021-10-27 | 2023-05-04 | 中国电建集团山东电力建设第一工程有限公司 | Fabricated flexible damping screw anchor foundation and power transmission tower |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191203 Termination date: 20210321 |
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| CF01 | Termination of patent right due to non-payment of annual fee |