CN209260749U - A kind of prefabricated Rock Bolt Foundation of mountain area iron tower of power transmission line half - Google Patents
A kind of prefabricated Rock Bolt Foundation of mountain area iron tower of power transmission line half Download PDFInfo
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- CN209260749U CN209260749U CN201822006146.3U CN201822006146U CN209260749U CN 209260749 U CN209260749 U CN 209260749U CN 201822006146 U CN201822006146 U CN 201822006146U CN 209260749 U CN209260749 U CN 209260749U
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Abstract
The utility model is a kind of design of mountain area iron tower of power transmission line half prefabricated Rock Bolt Foundation, and include: rock foundation is equipped with several anchor poles thereon；Precast concrete foundation, it is placed on rock foundation, basic principal post of the precast concrete foundation comprising cushion cap and thereon, it include several perforation passed through for anchor pole on cushion cap, the anchor pole top being pierced by is higher than cushion cap upper surface, basic principal post has the inclined gradient, and basic principal post top includes the angle steel of prefabricated insertion；Upper earthing ground, is set on rock foundation, and the cushion cap and anchor pole top are embedded on this within earthing ground.The utility model combines the advantages of prefabricated foundation and Rock Bolt Foundation, improves product quality, reduces difficulty of construction, shortens the construction period；And principal post uses batter post form and steel tower is connected with inserted angle steel, improves basic stress state, reduces basic material amount.
Description
Technical field
The utility model relates to Rock Bolt Foundation designs, belong to mountain area transmission line safety engineering field.
Background technique
Support of the mountain area power transmission line iron tower foundation as electric power pylon, the load that steel tower is undertaken is with being transferred to lower part
Base is the important guarantee of transmission line safety operation.Currently, the design of mountain area power transmission line iron tower foundation has following three technologies
Problem.
1, material and equipment conveying are difficult.Poured in place concrete basis needs the raw material such as a large amount of cement, sand, water and stirs
Mixing equipment, mountain road condition is poor, transport difficult.
2, long construction period.Scene progress reinforcing bar binding, concrete for making, the period of maintenance are long.When construction site temperature,
The period of maintenance can be further increased when the inclement conditions such as humidity.
3, electric power pylon foundation level direction basic role power is larger, higher to cushion cap horizontal direction requirement for bearing capacity, right
Basic infrastructure generates biggish moment of flexure, and basic material amount is high.
Existing scheme is using Composite Bolt basis, as shown in Figure 1.Top uses cast-in-place concrete cushion cap, and lower part uses anchor
Bar.Anti-pulling capacity is collectively constituted by top basis and bolt portion, is pushed bearing capacity and is provided by cushion cap.Basis is logical with steel tower
It crosses foundation bolt to be attached, basic principal post is right cylinder.
The prior art has the disadvantage in that
1) existing Composite Bolt basis superstructure uses cast-in-place concrete, and poured in place concrete basis needs a large amount of water
The raw material such as mud, sand, water and mixing plant, mountain road condition is poor, transport difficult.Scene carries out reinforcing bar binding, concrete system
The period make, conserved is long.The period of maintenance can be further increased when inclement conditions such as construction site gas epidemic disasters.
2) existing Composite Bolt basis principal post is right cylinder, and horizontal loading generates larger moment of flexure to foundation bottom, to cushion cap water
It is square higher to requirement for bearing capacity, and key dimension is further increased, quantity of material consumption increases.
Utility model content
The technical issues of the utility model is solved is providing a kind of mountain area iron tower of power transmission line half prefabricated rock-bolt
Basis.
Technological means used by the utility model is as described below.
A kind of prefabricated Rock Bolt Foundation of mountain area iron tower of power transmission line half, include: rock foundation is equipped with several anchors thereon
Bar；Precast concrete foundation is placed on rock foundation, basic principal post of the precast concrete foundation comprising cushion cap and thereon,
It include several perforation passed through for anchor pole on cushion cap, the anchor pole top being pierced by is higher than cushion cap upper surface, and basic principal post has inclination
The gradient, basic principal post top include prefabricated insertion angle steel；Upper earthing ground, is set on rock foundation, and described holds
Platform and anchor pole top are embedded on this within earthing ground.
It is described basis principal post with a vertical range of grade be 0.1-0.2.
The inclined direction of the basic principal post is identical as the direction of tower leg main material.
The tower leg main material is connected by the angle steel wrapped in the steel plate of 2 pieces of outer patch and 1 piece with the angle steel.
Technical effect caused by the utility model:
1, the utility model basis superstructure uses precast concrete, and precast concrete is in manufacturer's standard temperature, humidity
Lower production, maintenance, product quality is high, cycle time.
2, the utility model is connect using inserted angle steel with steel tower, and principal post is batter post, and horizontal force suffered by basis subtracts significantly
It is small, basic stress state is improved, basic material amount is reduced.
3, using primary structure it is prefabricated after, avoid heavy construction equipment transport, reduce haulage time and overall cost.
Detailed description of the invention
Fig. 1 is the Composite Bolt basic schematic of the prior art.
Fig. 2 is the half prefabricated Rock Bolt Foundation schematic diagram of the utility model.
Fig. 3 is the connection structure overall schematic of the utility model inserted angle steel and tower leg main material.
Fig. 4 is the connection structure diagrammatic cross-section of the utility model inserted angle steel and tower leg main material.
Specific embodiment
The utility model protects a kind of prefabricated Rock Bolt Foundation of mountain area iron tower of power transmission line half to design, and the utility model exists
Half prefabricated rock-bolt composite foundation is used in the transmission line of electricity of mountain area, which uses prefabricated reinforced concrete cushion cap, under
Portion is embedded in rock using anchor pole and forms a kind of compound basis.Basic principal post uses batter post form, and with inserted angle steel and iron
The connection of tower main material.
As shown in Fig. 2, the prefabricated Rock Bolt Foundation of the utility model mountain area iron tower of power transmission line half, includes: rock foundation
1, it is equipped with several anchor poles 2 thereon；Precast concrete foundation 3 is placed on rock foundation 1, which includes
Cushion cap 31 and basic principal post 32 thereon, 31 include several perforation passed through for anchor pole 2 on cushion cap, and 2 top of anchor pole being pierced by is high
In 31 upper surface of cushion cap, basic principal post 32 has the inclined gradient, and basic 32 top of principal post includes the angle steel 321 of prefabricated insertion；
Upper earthing ground 4, is set on rock foundation 1, and the cushion cap 31 and 2 top of anchor pole are embedded on this within earthing ground 4.
Wherein, basic principal post 32 with a vertical range of grade be 0.1-0.2.
Wherein, the inclined direction of basic principal post 32 is identical as the direction of tower leg main material 5.
As shown in Figure 3-4, installation is completed in factory in the prefabricated top in principal post 32 of angle steel 321 in the utility model.Iron
Tower bottom tower leg main material 5 is connected with the angle steel 321, is connected by the angle steel 52 wrapped in the steel plate 51 and 1 piece of 2 pieces of outer patch.
Concrete crushing strength is high, when lower pressure is born on basis, is transmitted pressure by prefabricated reinforced concrete cushion cap
To rock foundation layer.When uplift force is born on basis, basic anti-pulling capacity is total to by top concrete bearing platform and bolt portion
With composition.Basic principal post uses batter post form simultaneously, identical as the direction of tower leg main material, and the level of cushion cap is transferred to by principal post
Power substantially reduces, and improves basic stress state, and basic material consumption reduces.
Claims (4)
1. a kind of prefabricated Rock Bolt Foundation of mountain area iron tower of power transmission line half, characterized by comprising:
Rock foundation (1) is equipped with several anchor poles (2) thereon；
Precast concrete foundation (3) is placed on rock foundation (1), the precast concrete foundation (3) include cushion cap (31) and its
On basic principal post (32), include several perforation passed through for anchor pole on the cushion cap (31), the anchor pole top being pierced by, which is higher than, holds
Platform upper surface, the basis principal post (32) have the inclined gradient, and basic principal post (32) top includes the angle steel of prefabricated insertion
(321)；
Upper earthing ground (4), is set on rock foundation (1), and the cushion cap (31) and anchor pole (2) top are embedded on this and cover
Within soil base (4).
2. a kind of prefabricated Rock Bolt Foundation of mountain area iron tower of power transmission line half as described in claim 1, which is characterized in that described
Basic principal post (32) with a vertical range of grade be 0.1-0.2.
3. the prefabricated Rock Bolt Foundation of mountain area iron tower of power transmission line half as described in claim 1, which is characterized in that the base
The inclined direction of plinth principal post (32) is identical as the direction of tower leg main material (5).
4. the prefabricated Rock Bolt Foundation of mountain area iron tower of power transmission line half as claimed in claim 3, which is characterized in that the tower leg
Main material (5) is connected by the angle steel (52) wrapped in the steel plate (51) of 2 pieces of outer patch and 1 piece with the angle steel (321) of the prefabricated insertion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822006146.3U CN209260749U (en) | 2018-11-30 | 2018-11-30 | A kind of prefabricated Rock Bolt Foundation of mountain area iron tower of power transmission line half |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822006146.3U CN209260749U (en) | 2018-11-30 | 2018-11-30 | A kind of prefabricated Rock Bolt Foundation of mountain area iron tower of power transmission line half |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209260749U true CN209260749U (en) | 2019-08-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201822006146.3U Active CN209260749U (en) | 2018-11-30 | 2018-11-30 | A kind of prefabricated Rock Bolt Foundation of mountain area iron tower of power transmission line half |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110616733A (en) * | 2019-10-25 | 2019-12-27 | 中国电建集团贵州电力设计研究院有限公司 | Integral reinforcing device and method for foundation and component of power transmission tower |
| CN113818746A (en) * | 2021-09-30 | 2021-12-21 | 峻江建设有限公司 | Iron tower applied to plateau mountain area |
| CN113818474A (en) * | 2021-09-13 | 2021-12-21 | 金华电力设计院有限公司 | Assembly type bearing platform anchor cable foundation of power transmission tower and construction method |
-
2018
- 2018-11-30 CN CN201822006146.3U patent/CN209260749U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110616733A (en) * | 2019-10-25 | 2019-12-27 | 中国电建集团贵州电力设计研究院有限公司 | Integral reinforcing device and method for foundation and component of power transmission tower |
| CN113818474A (en) * | 2021-09-13 | 2021-12-21 | 金华电力设计院有限公司 | Assembly type bearing platform anchor cable foundation of power transmission tower and construction method |
| CN113818746A (en) * | 2021-09-30 | 2021-12-21 | 峻江建设有限公司 | Iron tower applied to plateau mountain area |
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