CN210395408U - Transmission tower inclined insertion deep foundation suitable for mountainous area steep terrain - Google Patents
Transmission tower inclined insertion deep foundation suitable for mountainous area steep terrain Download PDFInfo
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- CN210395408U CN210395408U CN201920951925.2U CN201920951925U CN210395408U CN 210395408 U CN210395408 U CN 210395408U CN 201920951925 U CN201920951925 U CN 201920951925U CN 210395408 U CN210395408 U CN 210395408U
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Abstract
The utility model discloses a transmission tower inserts deep basis to one side suitable for mountain area precipitous topography, including the oblique cubic column on upright circular pile and the upper portion of lower part, upright circular pile part or whole bury in the underground, the upper end of upright circular pile is located immediately to oblique cubic column, and the inclination of oblique cubic column is unanimous with the slope of tower leg owner material, upright circular pile with the shaping is pour as an organic whole to oblique cubic column, and the tower leg adopts to insert the angle steel and is connected with oblique cubic column, inserts the angle steel anchor in oblique cubic column. The utility model discloses in, through the oblique cubic column that sets up unanimous with tower leg main timber slope on traditional transmission tower digging hole stake basis upper portion, the moment of flexure that utilizes the moment of flexure that makes vertical load produce and the moment of flexure that horizontal load produced are reverse and the principle of offsetting each other, reduce the moment of flexure and the displacement of basis in ground department to effectively reduce basic engineering volume and reduce the engineering investment.
Description
Technical Field
The utility model relates to a transmission equipment field especially relates to a transmission tower inserts deep basis to one side suitable for steep topography in mountain area.
Background
With the development of national economy, corridor channel resources of the transmission lines are increasingly tense, a large number of transmission lines have to be routed in mountainous areas, the land occupation ratio of mountains and mountains is increasingly high, and a large number of transmission towers along the lines have to be selected in steep terrain positions. The power transmission tower in the mountainous area is generally designed according to all-dimensional long and short legs, the foundation type mainly adopts an undisturbed soil foundation, and the long and short legs of the tower are matched with the unequal-height foundations for use, so that disturbance and damage to the original slope surface are reduced to the maximum extent, and the excavation amount of earth and stone is reduced, thereby being beneficial to environmental protection and water and soil conservation during engineering construction. At present, the transmission tower foundation of the mountainous area steep terrain generally adopts a straight column type, a circular section and a hole digging pile foundation type with a hole-reamed base part, when the tower position terrain is steep, the top surface of the hole digging pile foundation is exposed out of the ground surface to a large height, the horizontal load action of the foundation is large, and the like, so that the foundation size and the foundation engineering quantity are increased, and the engineering investment is increased.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a: the inclined inserting deep foundation for the power transmission tower suitable for the steep terrain in the mountainous area is provided, the inclined square column which is consistent with the gradient of the main material of the tower leg is arranged on the upper portion of the traditional power transmission tower digging pile foundation, and the bending moment and the displacement of the foundation on the ground are reduced by utilizing the principle that the bending moment generated by vertical load and the bending moment generated by horizontal load are opposite and offset with each other, so that the foundation engineering amount is effectively reduced, and the engineering investment is reduced.
The utility model adopts the technical scheme as follows:
the utility model provides a transmission tower inserts deep basis to one side suitable for hilly area precipitous topography, includes the upright circular pile of lower part and the oblique cubic column on upper portion, upright circular pile part or whole bury in the underground, and the upper end of upright circular pile is located immediately to oblique cubic column, and the inclination of oblique cubic column is unanimous with the slope of tower leg owner material, and upright circular pile and oblique cubic column are the integrative shaping of pouring, and the tower leg adopts to insert the angle steel and is connected with oblique cubic column, inserts the angle steel anchor in oblique cubic column.
Furthermore, the upright circular pile is cast in situ in the foundation pit, the foundation pit is formed by manual excavation or mechanical excavation, and the lower part of the foundation pit can be reamed.
Further, the ratio of the cross-sectional area of the oblique square column to the cross-sectional area of the upright circular pile is less than 1, and particularly, the optimal design can be performed according to engineering design.
Further, the exposed height of the upright round pile is preferably reduced as much as possible, and usually is not more than 2 meters.
Further, the center point of the bottom surface of the oblique square upright post and the center point of the top surface of the upright circular pile can be overlapped or not overlapped, and the center point of the bottom surface of the oblique square upright post can be deviated towards the vertical center of the power transmission tower.
To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:
the utility model discloses in, the oblique cubic column formula design in basic upper portion has increased basis eccentric in other words, thereby has utilized the principle that the moment of flexure that vertical load produced and the moment of flexure that horizontal load produced are offset each other, has reduced the moment of flexure and the displacement of basis in ground department, can effectively solve the precipitous tower position basis of topography and expose a high, the big difficult problem of horizontal load effect, but also can reach the purpose that reduces basic engineering volume, reduction engineering investment.
Drawings
The invention will now be described, by way of example, with reference to the accompanying drawings, in which:
fig. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a partially enlarged view of a portion a in fig. 1.
Description of reference numerals:
1-upright round pile, 2-oblique square column, 3-inserted angle steel and 4-inserted angle steel anchoring piece.
Detailed Description
All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.
Any feature disclosed in this specification may be replaced by alternative features serving equivalent or similar purposes, unless expressly stated otherwise. That is, unless expressly stated otherwise, each feature is only an example of a generic series of equivalent or similar features.
Example 1:
referring to fig. 1-2, in the present embodiment, the power transmission tower inclined deep foundation suitable for mountainous steep terrain includes an upright circular pile 1 and an inclined square column 2, the upright circular pile 1 is partially or completely buried in the ground, the inclined square column 2 is vertically arranged at the upper end of the upright circular pile 1, and the upright circular pile 1 and the inclined square column 2 are integrally cast; the inclination angle of the oblique square column 2 is consistent with the gradient of the main material of the tower leg, the lower end of the tower leg is connected with the oblique square column 2 through an insert angle steel 3, and the insert angle steel 3 is anchored in the oblique square column 2.
The vertical round pile 1 is cast in place in a foundation pit, the foundation pit is formed by manual excavation or mechanical excavation, and the lower part of the foundation pit can be reamed.
The ratio of the cross sections of the oblique square column 2 and the upright circular pile 1 is less than 1, and the exposed height of the upright circular pile 1 is not more than 2 m.
Example 2:
the present embodiment is different from embodiment 1 in that:
in this embodiment, the central point of the bottom surface of the oblique square column 2 does not coincide with the central point of the top surface of the upright circular pile 1, and the central point of the bottom surface of the oblique square column 2 is offset toward the vertical center of the power transmission tower.
The present invention is not limited to the foregoing embodiments. The invention extends to any novel feature or any novel combination of features disclosed in this specification, and to any novel method or process steps or any novel combination of features disclosed.
Claims (4)
1. The utility model provides a transmission tower cuts deep basis to one side suitable for mountain area precipitous topography which characterized in that: the vertical round pile comprises a lower vertical round pile body and an upper oblique square column body, wherein the vertical round pile body is partially or completely buried underground, the oblique square column body is vertically arranged at the upper end of the vertical round pile body, the inclination angle of the oblique square column body is consistent with the gradient of a main material of a tower leg, and the vertical round pile body and the oblique square column body are integrally cast and formed.
2. The inclined deep foundation of the power transmission tower suitable for the steep terrain in the mountainous area as claimed in claim 1, wherein: the vertical round pile is cast in place in the foundation pit, the foundation pit is formed by manual excavation or mechanical excavation, and the lower part of the foundation pit can be reamed.
3. The inclined deep foundation of the power transmission tower suitable for the steep terrain in the mountainous area as claimed in claim 1 or 2, wherein: the lower ends of the tower legs are connected with an oblique square column on the upper portion of the foundation through inserted angle steel, and the inserted angle steel is anchored in the oblique square column.
4. The inclined deep foundation of the power transmission tower suitable for the steep terrain in the mountainous area as claimed in claim 1 or 2, wherein: the center point of the bottom surface of the oblique square column and the center point of the top surface of the upright circular pile can be overlapped or not overlapped, and the center point of the bottom surface of the oblique square column can be deviated to the vertical center of the power transmission tower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920951925.2U CN210395408U (en) | 2019-06-24 | 2019-06-24 | Transmission tower inclined insertion deep foundation suitable for mountainous area steep terrain |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920951925.2U CN210395408U (en) | 2019-06-24 | 2019-06-24 | Transmission tower inclined insertion deep foundation suitable for mountainous area steep terrain |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210395408U true CN210395408U (en) | 2020-04-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920951925.2U Active CN210395408U (en) | 2019-06-24 | 2019-06-24 | Transmission tower inclined insertion deep foundation suitable for mountainous area steep terrain |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210395408U (en) |
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2019
- 2019-06-24 CN CN201920951925.2U patent/CN210395408U/en active Active
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