CN205688454U - Power transmission tower resistance to plucking well foundation - Google Patents
Power transmission tower resistance to plucking well foundation Download PDFInfo
- Publication number
- CN205688454U CN205688454U CN201620428327.3U CN201620428327U CN205688454U CN 205688454 U CN205688454 U CN 205688454U CN 201620428327 U CN201620428327 U CN 201620428327U CN 205688454 U CN205688454 U CN 205688454U
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- CN
- China
- Prior art keywords
- open caisson
- cylinder
- power transmission
- plucking
- transmission tower
- 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.)
- Expired - Fee Related
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Abstract
The open a kind of power transmission tower resistance to plucking well foundation of this utility model, including cylindric open caisson (1), it is placed in the back cover (2) of described open caisson (1) lower end, is placed in the capping (3) of described open caisson (1) upper end, the sidewall of described open caisson (1) is provided with multiple through hole (11), grafting one cylinder (4) in each through hole (11), described cylinder (4) is vertical with open caisson (1) axis.Power transmission tower resistance to plucking well foundation of the present utility model, withdrawal resistance is strong, production cost is low, easy construction.
Description
Technical field
This utility model belongs to power transmission tower basis technical field, and particularly a kind of withdrawal resistance is strong, production cost is low, construction party
Just power transmission tower resistance to plucking well foundation.
Background technology
Power transmission tower does not only rely on and is placed in the bearing capacity that the basis bottom it provides enough, also needs the resistance to plucking that basis offer is enough
Power.
Current power transmission tower often uses raft foundation or pile foundation.When using raft foundation, due to foundation's bottom area
Greatly, as providing enough withdrawal resistances, then needed to add great burying, cause earthwork evacuation amount big；As for reducing earthwork evacuation amount, then
Buried depth, it is difficult to enough withdrawal resistances are provided.When using pile foundation, then need to use cast-in-situ bored pile can meet power transmission tower basis
Bearing capacity and resistance to plucking requirement, thus cost is higher.
Therefore, prior art there is the problem that power transmission tower is basic when ensureing enough withdrawal resistance requirements, and cost is high.
Summary of the invention
The purpose of this utility model is to provide a kind of power transmission tower resistance to plucking well foundation, and withdrawal resistance is strong, production cost is low, execute
Work is convenient.
The technical solution realizing this utility model purpose is:
A kind of power transmission tower resistance to plucking well foundation, the back cover including cylindric open caisson, being placed in described open caisson lower end, be placed in described
The capping of open caisson upper end, the sidewall of described open caisson is provided with multiple through hole, grafting one cylinder in each through hole, and described cylinder is with heavy
Borehole axis line is vertical.
Compared with prior art, its remarkable advantage is this utility model:
1, withdrawal resistance is strong: and all-in-one-piece multiple cylinder vertical with open caisson axis as root key, based on provide enough
Withdrawal resistance.
2, production cost is low, easy construction: uses open caisson mode, greatly reduces excavation of foundation pit amount, withdrawal resistance and carrying
Power relies primarily on subsoil and backfill soil provides, and greatly reduces concrete material and uses, and production cost is low, and easy construction.
With detailed description of the invention, this utility model is described in further detail below in conjunction with the accompanying drawings.
Accompanying drawing explanation
Fig. 1 is the structural representation of this utility model power transmission tower resistance to plucking well foundation.
Fig. 2 is the top view of this utility model power transmission tower resistance to plucking well foundation.
In figure, open caisson 1, back cover 2, capping 3, through hole 11, cylinder 4.
Detailed description of the invention
As it is shown in figure 1, this utility model power transmission tower resistance to plucking well foundation, including cylindric open caisson 1, it is placed in described open caisson 1
The back cover 2 of lower end, being placed in the capping 3 of described open caisson 1 upper end, the sidewall of described open caisson 1 is provided with multiple through hole 11, each through hole
Grafting one cylinder 4 in 11, described cylinder 4 is vertical with open caisson 1 axis.
Described open caisson 1 is formed by armored concrete is prefabricated.
Described cylinder 4 is formed by armored concrete is prefabricated.
Described back cover 2 is formed by armored concrete cast in situs.
Described capping 3 is formed by armored concrete cast in situs.
Described cylinder 4 and through hole 11 loose fit on open caisson 1 sidewall, cylinder 4 install in place after, at cylinder 4 and through hole 11
Casting concrete between gap.
Backfill element soil in described open caisson 1.
Backfilling element soil in described open caisson 1 periphery and roll compacting, compacting factor is not less than 0.92, height after the earthen backfill of described element
Go out ground 350mm.
Each power transmission tower resistance to plucking well foundation of the present utility model, is placed on an angle bottom power transmission tower tower body.
The construction technology of this utility model power transmission tower resistance to plucking well foundation is presented herein below.
(1) prefabricated open caisson 1, and open caisson 1 borehole wall reserves through hole 11, as root keyhole, prefabricated reinforced concrete column body 4, makees
For root key；
(2) excavate slightly larger than the foundation ditch of open caisson 1 outside dimension in basic engineering position, and lay sand-gravel cushion whole at the end, hole
Flat；
(3) open caisson 1 is transferred to foundation ditch；
(4) from open caisson 1 inside, cylinder 4 is inserted the borehole wall to reserve through hole 11, and use pushing tow mode that cylinder 4 is headed into soil
In Ceng so that it is insert among the soil layer of open caisson surrounding as root key；
(5) casting concrete between cylinder 4 and through hole 11 gap so that root key is integrally formed with open caisson；
(6) back cover is carried out at open caisson 1 lower end casting concrete；Backfill element soil in described open caisson 1；
(7) bind the circular cushion cap of formation by open caisson top casting concrete, and as the cushion cap on tower body basis；
(8) backfilling plain fill outside open caisson and roll compacting, compacting factor is not less than 0.92, and described plain fill exceeds ground
Face more than 350mm.
From above-mentioned work progress it can also be seen that, this utility model withdrawal resistance is strong, production cost is low, easy construction.
Claims (6)
1. a power transmission tower resistance to plucking well foundation, it is characterised in that: include cylindric open caisson (1), be placed in described open caisson (1) lower end
Back cover (2), be placed in the capping (3) of described open caisson (1) upper end, the sidewall of described open caisson (1) is provided with multiple through hole (11), often
Grafting one cylinder (4) in individual through hole (11), described cylinder (4) is vertical with open caisson (1) axis；
Through hole (11) loose fit on described cylinder (4) and open caisson (1) sidewall, cylinder (4) install in place after, cylinder (4) with
Casting concrete between through hole (11) gap.
Basis the most according to claim 1, it is characterised in that: described open caisson (1) is formed by armored concrete is prefabricated.
Basis the most according to claim 1, it is characterised in that: described cylinder (4) is formed by armored concrete is prefabricated.
Basis the most according to claim 1, it is characterised in that: described back cover (2) is formed by armored concrete cast in situs.
Basis the most according to claim 1, it is characterised in that: described capping (3) is formed by armored concrete cast in situs.
Basis the most according to claim 1, it is characterised in that: backfill element soil in described open caisson (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620428327.3U CN205688454U (en) | 2016-05-12 | 2016-05-12 | Power transmission tower resistance to plucking well foundation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620428327.3U CN205688454U (en) | 2016-05-12 | 2016-05-12 | Power transmission tower resistance to plucking well foundation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205688454U true CN205688454U (en) | 2016-11-16 |
Family
ID=57262466
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620428327.3U Expired - Fee Related CN205688454U (en) | 2016-05-12 | 2016-05-12 | Power transmission tower resistance to plucking well foundation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205688454U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105839661A (en) * | 2016-05-12 | 2016-08-10 | 扬州大学 | Anti-pulling open caisson foundation for power transmission tower |
| CN108222054A (en) * | 2018-01-05 | 2018-06-29 | 广州市芳村建筑工程有限公司 | Tower-crane foundation structure and its construction method |
| CN111485572A (en) * | 2020-03-17 | 2020-08-04 | 中国电力工程顾问集团西北电力设计院有限公司 | Construction method of prefabricated root key type wing plate foundation |
-
2016
- 2016-05-12 CN CN201620428327.3U patent/CN205688454U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105839661A (en) * | 2016-05-12 | 2016-08-10 | 扬州大学 | Anti-pulling open caisson foundation for power transmission tower |
| CN108222054A (en) * | 2018-01-05 | 2018-06-29 | 广州市芳村建筑工程有限公司 | Tower-crane foundation structure and its construction method |
| CN108222054B (en) * | 2018-01-05 | 2019-11-15 | 广州市芳村建筑工程有限公司 | Tower-crane foundation structure and its construction method |
| CN111485572A (en) * | 2020-03-17 | 2020-08-04 | 中国电力工程顾问集团西北电力设计院有限公司 | Construction method of prefabricated root key type wing plate foundation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161116 Termination date: 20190512 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |