CN204626443U - A kind of transmission line of electricity batter post directly digs and expands the large plate base in the end - Google Patents
A kind of transmission line of electricity batter post directly digs and expands the large plate base in the end Download PDFInfo
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- CN204626443U CN204626443U CN201520306766.2U CN201520306766U CN204626443U CN 204626443 U CN204626443 U CN 204626443U CN 201520306766 U CN201520306766 U CN 201520306766U CN 204626443 U CN204626443 U CN 204626443U
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Abstract
The utility model discloses a kind of transmission line of electricity batter post and directly dig the large plate base in the expansion end, it comprises batter post (1), be positioned at the angle steel (5) of batter post (1), angle steel (5) is connected with steel tower, the sole plate (2) be connected with batter post (1), characterized by further comprising at the bottom of the expansion be connected with sole plate (2) (3), the expansion end (3) is enclosed in sole plate (2) around, expand the top soil body (6) of top, the end (3) in non-cutting status, at the bottom of described expansion, (3) bottom is equipped with concrete cushion (4).The utility model is by carrying out at the bottom of expansion to sole plate surrounding, increase the scope of the basic top resistance to plucking soil body, namely increase the deadweight of the resistance to plucking soil body, improve foundation anti-pulling bearing capacity, when same basic anti-pulling capacity, there is the concrete less than prior art and amount of reinforcement.
Description
Technical field
The utility model belongs to transmission line foundation technical field, is specifically related to a kind of transmission line of electricity batter post and directly digs the large plate base in the expansion end.
Background technology
Transmission line foundation is the important component part of transmission line of electricity, and superstructure load is passed to ground by being connected with superstructure by it, in order to support the shaft tower of transmission line of electricity.Conventional base form comprises rock foundation, anchor rod foundation, digging foundation, ladder basis, large plate base, the large plate base of oblique cutting, bored concrete pile foundation etc.The wherein primary features of the large plate base of oblique cutting: be connected with superstructure by inserted angle steel, key dimension and buried depth are mainly subject to the impact of upper load and bearing capacity of foundation soil, are used for soft foundation.
When resistance to plucking design is carried out on existing basis, owing to adopting the digging mode that baseplate width is identical with vertical cut width, it pulls out angle span upwards to spread from base plate, when resistance to plucking design does not meet the demands, embedded depth of foundation can only be increased or strengthen sole plate width, causing the increase of concrete and amount of reinforcement.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art part, and provides a kind of transmission line of electricity batter post directly to dig the large plate base in the expansion end.It not only promotes foundation anti-pulling bearing capacity, and saves the consumption of concrete and reinforcing bar.
The purpose of this utility model is reached by following measure: a kind of transmission line of electricity batter post directly digs and expands the large plate base in the end, it comprises batter post, be positioned at the angle steel of batter post, angle steel is connected with steel tower, the sole plate be connected with batter post, characterized by further comprising at the bottom of the expansion be connected with sole plate, and the expansion end is enclosed in around sole plate, the top soil body expanded is non-cutting status at the end, is equipped with concrete cushion bottom at the bottom of described expansion.
In technique scheme, it is 2m-10m that described transmission line of electricity batter post directly digs the buried depth H expanding the large plate base in the end, and the width D of described sole plate is 2m-20m.
In technique scheme, described sole plate from lower end upwards with at the bottom of described expansion in expanding base angle β, expansion base angle β is 20 °-70 °.
In technique scheme, described batter post is the concrete column of rectangle, and the shape of described sole plate is rectangle.
In technique scheme, the lower end of described angle steel is provided with shearing-resistant member.
The advantage that the utility model has is as follows: the utility model is by carrying out at the bottom of expansion to sole plate surrounding, increase the scope of the basic top resistance to plucking soil body, namely the deadweight of the resistance to plucking soil body is increased, improve foundation anti-pulling bearing capacity, when same basic anti-pulling capacity, there is the concrete less than prior art and amount of reinforcement.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure 1, batter post, 2, sole plate, 3, expand the end, 4, concrete cushion, 5, angle steel, 6, the top soil body, α, on pull out angle, β, expand base angle.
Detailed description of the invention
Describe performance of the present utility model in detail below in conjunction with accompanying drawing, but it is not formed to restriction of the present utility model, only illustrates.Simultaneously by illustrating, advantage of the present utility model will become clearly and easy understand.
Consult Fig. 1 known: a kind of transmission line of electricity batter post directly digs and expands the large plate base in the end, it comprises batter post 1, be positioned at the angle steel 5 of batter post 1, angle steel 5 is connected with steel tower, the sole plate 2 be connected with batter post 1, to characterized by further comprising at the bottom of the expansion be connected with sole plate 23, expands the end 3 to be enclosed in sole plate 2 around, expand the top soil body 6 above the end 3 in non-cutting status, at the bottom of described expansion, be equipped with concrete cushion 4 bottom 3.
Described a kind of transmission line of electricity batter post directly digs and expands the large plate base in the end, and it is characterized in that described transmission line of electricity batter post directly digs the buried depth H expanding the large plate base in the end is 2m-10m, and the width D of described sole plate 2 is 2m-20m.The width of buried depth H and sole plate 2 in the specific implementation, can in conjunction with geologic information and load design value.
Described a kind of transmission line of electricity batter post directly digs and expands the large plate base in the end, it is characterized in that described sole plate 2 from lower end upwards with at the bottom of described expansion 3 in expanding base angle β, expansion base angle β is 20 °-70 °.When sole plate 2 excavates, carry out excavating at the bottom of expansion along sole plate 2 surrounding, making to expand base angle β is 20 °-70 °, can be designed as 45 ° or 60 ° in the specific implementation.
Described a kind of transmission line of electricity batter post directly digs and expands the large plate base in the end, and it is characterized in that described batter post 1 is the concrete column of rectangle, the shape of described sole plate 2 is rectangle.In the specific implementation, batter post 1 can be foursquare concrete column for cross section, and the shape of sole plate 2 can be designed as square.
Described a kind of transmission line of electricity batter post directly digs and expands the large plate base in the end, it is characterized in that the lower end of described angle steel 5 is provided with shearing-resistant member.
In the present embodiment, before building, defaulted in batter post 1 by angle steel 5 together with the shearing-resistant member of its lower end, be integrated after building with sole plate 2 one-tenth, being convenient to the later stage is connected with top steel tower.
Concrete cushion 4 is built before sole plate 2 and the expansion end 3 are built.Expand the concrete of the end 3 employing and sole plate 2 same levels and reinforcing bar is not set.
Before sole plate 2 is built, carry out the excavation expanding the end 3, above ensureing to expand the end 3, the top soil body 6 is in non-cutting status simultaneously.
Directly digging at above-mentioned transmission line of electricity batter post expands in the large plate base in the end, and angle α is pulled out in soil body resistance to plucking calculating in basic top, and upwards spread by the end after sole plate expands the end, its span can carry out value in conjunction with geologic information or experimental result.
Described transmission line of electricity batter post directly digs and expands the large plate base in the end and be suitable for soil property and comprise: silt, mucky soil, red clay, artificial earth fill, expansive soil, flour sand, fine sand, medium sand, coarse sand gravelly soil, silty clay, native horsestone.
Other, without the part described in detail, is prior art.
Claims (5)
1. a transmission line of electricity batter post directly digs and expands the large plate base in the end, it comprises batter post (1), be positioned at the angle steel (5) of batter post (1), angle steel (5) is connected with steel tower, the sole plate (2) be connected with batter post (1), characterized by further comprising at the bottom of the expansion be connected with sole plate (2) (3), the expansion end (3) is enclosed in sole plate (2) around, expand the top soil body (6) of top, the end (3) in non-cutting status, at the bottom of described expansion, (3) bottom is equipped with concrete cushion (4).
2. a kind of transmission line of electricity batter post according to claim 1 directly digs and expands the large plate base in the end, it is characterized in that described transmission line of electricity batter post directly digs the buried depth H expanding the large plate base in the end is 2m-10m, and the width D of described sole plate (2) is 2m-20m.
3. a kind of transmission line of electricity batter post according to claim 1 and 2 directly digs and expands the large plate base in the end, it is characterized in that described sole plate (2) from lower end upwards with (3) at the bottom of described expansion in expanding base angle β, expansion base angle β is 20 °-70 °.
4. a kind of transmission line of electricity batter post according to claim 3 directly digs and expands the large plate base in the end, and it is characterized in that the concrete column that described batter post (1) is rectangle, the shape of described sole plate (2) is rectangle.
5. a kind of transmission line of electricity batter post according to claim 4 directly digs and expands the large plate base in the end, it is characterized in that the lower end of described angle steel (5) is provided with shearing-resistant member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520306766.2U CN204626443U (en) | 2015-05-12 | 2015-05-12 | A kind of transmission line of electricity batter post directly digs and expands the large plate base in the end |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520306766.2U CN204626443U (en) | 2015-05-12 | 2015-05-12 | A kind of transmission line of electricity batter post directly digs and expands the large plate base in the end |
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| Publication Number | Publication Date |
|---|---|
| CN204626443U true CN204626443U (en) | 2015-09-09 |
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| CN201520306766.2U Active CN204626443U (en) | 2015-05-12 | 2015-05-12 | A kind of transmission line of electricity batter post directly digs and expands the large plate base in the end |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104805860A (en) * | 2015-05-12 | 2015-07-29 | 中国电力工程顾问集团中南电力设计院有限公司 | Inclined column straight-excavating bottom-expanding big board foundation for transmission line |
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2015
- 2015-05-12 CN CN201520306766.2U patent/CN204626443U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104805860A (en) * | 2015-05-12 | 2015-07-29 | 中国电力工程顾问集团中南电力设计院有限公司 | Inclined column straight-excavating bottom-expanding big board foundation for transmission line |
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