Heightening combination structure for existing foundation of power transmission line
Through the existing foundation-raising combined structure of the transmission line, the use of components such as cross steel and anchor bolts, the problems of high engineering cost and long construction cycle during the foundation-raising process of the transmission line are solved, and the efficiency and cost of foundation-raising are achieved save.
Patent Information
- Application Number
- CN202323398756.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-13
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2033-12-13
AI Technical Summary
The prior art has problems of high engineering cost and long construction cycle in the process of increasing the foundation of transmission line, especially the demand for increasing the foundation caused by changing the tower base terrain or uneven settlement of the foundation is difficult to solve efficiently.
A combination structure of existing foundation-heightening of power transmission lines, including cross steel, column foot connection base plate, anchor bolts, wing plates, longitudinal structural steel bars and stirrups, and foundation-heightening is achieved by pouring concrete and interface glue to ensure foundation roots Open unchanged and smoothly connected to the tower.
This method greatly saves construction time and engineering cost, avoids the need to scrap the original foundation, achieves efficient improvement of the existing transmission line foundation, and ensures the normal connection between the tower and the foundation.
Smart Images
Figure CN222206453U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a power transmission line foundation, in particular to an existing foundation heightening combined structure for a power transmission line. Background Art
[0002] In recent years, the construction of power grids has been booming, and it is very necessary to deal with the problems found in engineering construction and operation and maintenance projects in a targeted manner. For newly built transmission lines, there is a need to heighten and transform the poured foundation when the tower and foundation high and low legs do not match due to changes in the tower base terrain, and when the line-to-ground distance does not meet the regulatory requirements due to the addition of spans; for existing transmission lines, there is also a need to heighten and transform the existing foundation due to uneven foundation settlement, new spans, and other reasons.
[0003] The above situation is usually solved by scrapping and re-casting the foundation or processing a new tower, which has high project cost, long construction period and complicated construction process. Utility Model Content
[0004] The utility model overcomes the shortcomings of the prior art, proposes a combined structure for raising the existing foundation of a power transmission line, and solves the problems of long construction time and high engineering cost for raising the foundation of a power transmission line.
[0005] In order to achieve the above purpose, the utility model is implemented through the following technical solutions.
[0006] A combined structure for raising the existing foundation of a power transmission line comprises a cross-shaped steel, wherein a foundation connection top plate is arranged at the upper end of the cross-shaped steel, and a column foot connection bottom plate is arranged at the lower end of the cross-shaped steel; the column foot connection bottom plate is connected to the original foundation through anchor bolts; the foundation connection top plate is connected to an iron tower footboard through bolts; wing plates are arranged at the four ends of the cross-shaped steel, and bolts are arranged on the wing plates; stiffening plates are arranged at regular intervals along the longitudinal direction of the cross-shaped steel, longitudinal structural steel bars and stirrups are arranged on the outer side of the cross-shaped steel, support templates are arranged around the longitudinal structural steel bars and stirrups, and concrete is poured in the support templates; the iron tower footboard is located on the top surface of the poured concrete foundation.
[0007] Furthermore, the column base is connected to the original foundation at four top corners of the base plate through anchor bolts.
[0008] Furthermore, a gasket is provided between the anchor bolt and the column foot connection base plate.
[0009] Furthermore, the bottom surface of the poured concrete foundation is bonded to the original foundation by an interface adhesive, and the surface of the original foundation is a rough structure with roughening.
[0010] Furthermore, two pegs are connected to each wing plate.
[0011] Furthermore, the length of the bolt is 80 mm.
[0012] The beneficial effects of the utility model compared with the prior art are:
[0013] The foundation heightening structure described in the utility model needs to be established on the basis of foundation force verification. After the foundation is heightened and renovated, the foundation root opening does not change, which can meet the requirements of normal connection between the iron tower and the foundation through anchor bolts, and at the same time greatly saves construction time and engineering cost.
[0014] The utility model solves the demand for raising the foundation of an existing power transmission line by adding a combined component, does not need to scrap the original foundation and the foundation root remains unchanged after the raising, and can ensure smooth connection between the raised foundation and the upper iron tower. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is an elevation view of the existing foundation heightening combined structure described in the utility model.
[0016] Figure 2 It is a transverse cross-sectional view of the existing foundation heightening combined structure described in the utility model.
[0017] Among them, 1 is a cross steel, 2 is the foundation connecting the top plate, 3 is the column base connecting the bottom plate, 4 is the anchor bolt, 5 is the original foundation, 6 is the bolt, 7 is the tower footboard, 8 is the wing plate, 9 is the bolt, 10 is the stiffening plate, 11 is the longitudinal structural steel bar, 12 is the stirrup, 13 is the support formwork, 14 is the concrete foundation, and 15 is the gasket. DETAILED DESCRIPTION
[0018] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail in combination with the embodiments and the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention. The technical solution of the present invention is described in detail below in combination with the embodiments and the accompanying drawings, but the scope of protection is not limited thereto.
[0019] like Figure 1-2 As shown, this embodiment provides a combined structure for raising the existing foundation of a power transmission line, including a cross-shaped steel 1, a foundation connection top plate 2 is provided at the upper end of the cross-shaped steel 1, and a column foot connection bottom plate 3 is provided at the lower end of the cross-shaped steel 1; the foundation connection top plate 2 and the column foot connection bottom plate 3 are both steel plates. The four top corners of the column foot connection bottom plate 3 are respectively connected to the original foundation 5 by anchor bolts 4. A gasket 15 is provided between the anchor bolt 4 and the column foot connection bottom plate 3. The anchor bolt 4 is the original anchor bolt in the original iron tower foundation. The foundation connection top plate 2 is connected to the iron tower footboard 7 by bolts 6.
[0020] The four ends of the cross-shaped steel 1 are all provided with wing plates 8, and two bolts 9 are connected to the wing plates 8. The length of the bolts 9 is 80 mm. The cross-shaped steel 1 is provided with stiffening plates 10 at regular intervals along the longitudinal direction, and longitudinal structural steel bars 11 and stirrups 12 are provided on the outside of the cross-shaped steel 1. Support formwork 13 is provided outside the longitudinal structural steel bars 11 and stirrups 12, and concrete is poured in the support formwork 13; the tower footboard 7 is located on the top surface of the poured concrete foundation 14.
[0021] The bottom surface of the poured concrete foundation 14 is bonded to the original foundation 5 by interface adhesive, and the surface of the original foundation 5 is a rough structure with roughening.
[0022] The utility model solves the demand for raising the foundation of an existing power transmission line by adding a combined component, does not need to scrap the original foundation and the foundation root remains unchanged after the raising, and can ensure smooth connection between the raised foundation and the upper iron tower.
[0023] By adding new composite components, the need to raise the foundation of existing transmission lines has been met, greatly reducing project costs and shortening construction time.
[0024] The above content is a further detailed description of the utility model in combination with a specific preferred implementation method. It cannot be determined that the specific implementation methods of the utility model are limited to this. For ordinary technicians in the technical field to which the utility model belongs, they can make several simple deductions or substitutions without departing from the utility model, which should be regarded as belonging to the utility model and the scope of patent protection determined by the submitted claims.
Claims
1. A combined structure for raising the existing foundation of a power transmission line, characterized in that: The invention comprises a cross-shaped steel (1), wherein a foundation connection top plate (2) is arranged at the upper end of the cross-shaped steel (1), and a column foot connection bottom plate (3) is arranged at the lower end of the cross-shaped steel (1); the column foot connection bottom plate (3) is connected to an original foundation (5) via anchor bolts (4); the foundation connection top plate (2) is connected to an iron tower footboard (7) via bolts (6); wing plates (8) are arranged at the four ends of the cross-shaped steel (1), and bolts (9) are arranged on the wing plates (8); stiffening plates (10) are arranged at regular intervals along the longitudinal direction of the cross-shaped steel (1), longitudinal structural steel bars (11) and stirrups (12) are arranged on the outer side of the cross-shaped steel (1), and support templates (13) are arranged outside the longitudinal structural steel bars (11) and stirrups (12), and concrete is poured in the support templates (13); the iron tower footboard (7) is located on the top surface of the poured concrete foundation (14).
2. The combined structure for raising the existing foundation of a power transmission line according to claim 1, characterized in that: The four top corners of the column foot connection base plate (3) are connected to the original foundation via anchor bolts (4) respectively.
3. The existing foundation heightening combined structure of a power transmission line according to claim 2, characterized in that: A gasket (15) is provided between the anchor bolt (4) and the column foot connection base plate (3).
4. The existing foundation heightening combined structure of a power transmission line according to claim 1, characterized in that: The bottom surface of the poured concrete foundation (14) is bonded to the original foundation (5) by means of an interface adhesive, and the surface of the original foundation (5) is a roughened structure.
5. The combined structure for raising the existing foundation of a power transmission line according to claim 1, characterized in that: Two bolts (9) are connected to each wing plate (8).
6. The combined structure for raising the existing foundation of a power transmission line according to claim 5, characterized in that: The length of the bolt (9) is 80 mm.