Power transmission line tower foundation suitable for complex terrain

Abstract

The utility model discloses a power transmission line tower foundation suitable for complex terrains, which comprises tower legs and a bearing foundation, the bearing foundation comprises a concrete bearing platform, a bearing part, an adjusting part, an adjusting support, a supporting main rod, a supporting auxiliary rod, a positioning seat and a tower leg seat, the bearing part is arranged in a cross-shaped or Y-shaped structure, the bearing part is fixedly arranged on the top of the concrete bearing platform, and the adjusting part is arranged on the top of the concrete bearing platform. Adjusting pieces are arranged at the tail ends of the bearing piece, a positioning seat is arranged in the center of the bearing piece, adjusting supports are arranged on the adjusting pieces, supporting main rods are movably hinged to the adjusting supports, tower leg seats are movably hinged to the upper ends of the supporting main rods, and tower legs are fixedly installed on the tower leg seats. The number of the auxiliary supporting rods is the same as that of the main supporting rods, and the upper ends of the auxiliary supporting rods are movably hinged to the upper middle portions of the main supporting rods corresponding to the auxiliary supporting rods. The tower support is high in supporting stability, and effectively solves the problem that the tower support is inclined due to external force and cannot be corrected under the condition that the overall stability of the tower body is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model belongs to power transmission line tower technical field especially relates to a power transmission line tower foundation suitable for complex terrain. BACKGROUND

[0002] In the process of long distance power transmission line erection, most of the line towers usually pass through the mountainous area with various landforms and complex terrain. At present, in the face of the foundation treatment of complex terrain, the mode is to excavate earthwork to construct deep foundation pit, then to pour a large amount of concrete to build foundation platform, and then to install tower on the foundation platform. Although this mode improves the overall engineering performance, it is found in use that after the tower is used in the complex terrain of mountainous area for a long time, the bearing capacity of the foundation platform is affected by external factors such as earthquakes, soil erosion and surrounding soil loosening, which further causes the tower to tilt. The existing tower foundation cannot realize the fine adjustment and correction of the tilted tower, but can only reinforce the construction on one side of the tilt and set a pulling rope on the opposite side to pull. Although this mode can prevent the tower from continuing to tilt, it still cannot correct the tower. Therefore, developing a new type of tower foundation capable of fine adjustment and correction of the tilted tower is the key to solving the problem. SUMMARY

[0003] The utility model provides a power transmission line tower foundation suitable for complex terrain.

[0004] The utility model discloses a following technical scheme realizes: including tower leg, and set up in the bearing foundation of tower leg lower extreme, the bearing foundation includes the coagulation platform, bearing piece, adjusting part, adjusting support, support main rod, support auxiliary pole, positioning seat, tower leg seat, the bearing piece is cross -shaped or Y character shape structure setting, bearing piece fixed setting in the coagulation platform top, adjusting part is set in each end of bearing piece, positioning seat is set in the center, adjusting support is set on each adjusting part, the support main rod is movably hinged on the adjusting support, the upper end of each support main rod is movably hinged tower leg seat, and the tower leg is installed and fixed on the tower leg seat, the support auxiliary pole that the number is consistent with support main rod is movably hinged on the positioning seat, and the upper end of support auxiliary pole is movably hinged in the upper part of corresponding support main rod.

[0005] The utility model has the advantages of being a micro pile structure, having small land occupation, high supporting stability, not needing to excavate earthwork to pour tower foundation, being capable of being installed after being formed into a hole by small-sized machinery during construction, and being capable of being directly installed and used on site, effectively shortening construction difficulty and improving construction efficiency.

[0006] On the other hand, when the tower tilts, the support foundation in the direction of the tilt can be adjusted to straighten the tower, effectively solving the problem of the tower tilting due to external forces and being unable to be corrected while ensuring the overall stability of the tower. Attached Figure Description

[0007] Figure 1 This is a schematic diagram of the structure of this utility model;

[0008] Figure 2 This is a top view of the structure of this utility model;

[0009] Figure 3 This is a schematic diagram of the structure supporting the foundation;

[0010] Figure 4 A schematic diagram showing the connection structure between the main support rod and the load-bearing and adjusting components;

[0011] Figure 5 This is a top view schematic diagram of the concrete foundation, load-bearing components, adjusting components, and adjusting supports.

[0012] The numbers in the diagram are: 1~tower leg, 2~bearing foundation, 3~concrete foundation, 4~bearing component, 5~adjusting component, 6~adjusting support, 7~main support rod, 8~secondary support rod, 9~positioning seat, 10~tower leg seat, 11~positioning hole, 12~screw sleeve, 13~adjusting hole, 14~anchor rod. Detailed Implementation

[0013] To enable those skilled in the art to better understand the technical solution of this utility model, the specific embodiments are described in detail below with reference to the accompanying drawings.

[0014] like Figures 1-5 The transmission line tower foundation shown is suitable for complex terrain and includes tower legs 1 and a bearing foundation 2 located at the lower end of the tower legs 1. The bearing foundation 2 includes a concrete platform 3, bearing members 4, adjusting members 5, adjusting supports 6, main support rods 7, secondary support rods 8, positioning seats 9, and tower leg seats 10. The bearing members 4 are arranged in a cross or Y shape and are fixedly installed on the top of the concrete platform 3. Adjusting members 5 are provided at each end of the bearing members 4, and positioning seats 9 are provided at the center. Adjusting supports 6 are provided on each adjusting member 5. The main support rods 7 are movably hinged to the adjusting supports 6. The upper end of each main support rod 7 is movably hinged to the tower leg seat 10. The tower legs 1 are installed and fixed on the tower leg seats 10. The number of secondary support rods 8 is the same as that of the main support rods 7 and is movably hinged to the positioning seats 9. The upper end of the secondary support rods 8 is movably hinged to the upper part of the corresponding main support rod 7.

[0015] The bearing piece 4 is a steel plate, and the thickness of the steel plate is not less than 1 cm, so that the structural strength and stress performance are ensured, and the deformation is avoided; a plurality of positioning holes 11 are arranged on both sides of the bearing piece 4 in the axial direction, and the positioning holes 11 on both sides are arranged opposite to each other, a plurality of anchoring rods 14 are arranged on the lower surface of the steel plate, and the anchoring rods 14 are fixed downward in the concrete pile cap 3; in construction, a small mechanical excavation pit is used, and then the bearing piece 4 is integrally poured with the concrete pile cap 3 to form, and the bearing piece 4 is located at the top of the concrete pile cap 3, so that the bearing piece 4 is effectively fixed.

[0016] The adjusting piece 5 is a steel rail, which is welded and fixed with the bearing piece 4 to form a convex structure, the adjusting support 6 is arranged in a sliding block structure matched with the adjusting piece 5, at least two adjusting holes 13 matched with the positioning holes 11 are arranged on both sides of the adjusting support 6 in the axial direction, and each adjusting hole 13 is fixedly connected with the positioning hole 11 through a bolt. When correction adjustment is needed, an auxiliary tool is used to fix the tower leg 1 to be adjusted, then the bolts on the adjusting support 6 at the bottom of the tower leg 1 are removed, the adjusting support 6 is moved or moved backward, and after the adjusting support 6 is moved to the position, the bolts are installed to fix the adjusting support 6 on the bearing piece 4; by using the above adjustment mode, the adjusting support 6 at the bottom of each tower leg 1 is adjusted in turn, so that the adjustment and correction operation is realized.

[0017] The supporting main rod 7 is arranged in an H-shaped structure, and a double-rod structure is used to improve the supporting strength.

[0018] The positioning seat 9 is welded and fixed with the bearing piece 4, and a hinge ear plate is arranged on the positioning seat 9 to connect the supporting auxiliary rod 8.

[0019] Each positioning hole 11 is coaxially provided with a screw sleeve 12, the top end of the screw sleeve 12 is welded and fixed on the bearing piece 4, and the bolt is locked and fixed with the screw sleeve 12 after passing through the adjusting hole 13 and the positioning hole 11 downward.

[0020] It should be noted that the materials used in the tower foundation of the present application are steel materials, preferably steel pipes or angle steels, except for the materials specifically mentioned in the present application; the tower leg 1 is a truss structure; and the connection mode between the parts is the conventional connection and fixing mode of the existing tower.

Claims

1. A foundation for a power transmission line tower suitable for complex terrain, comprising a tower leg (1) and a load bearing foundation (2) arranged at the lower end of the tower leg (1), characterized in that: The bearing base (2) comprises a concrete platform (3), a bearing part (4), an adjusting part (5), an adjusting support (6), a supporting main rod (7), a supporting auxiliary rod (8), a positioning seat (9), and a tower leg seat (10). The bearing part (4) is arranged in a cross shape or Y shape, and is fixedly arranged on the top of the concrete platform (3). The adjusting part (5) is arranged at each end of the bearing part (4), and the positioning seat (9) is arranged at the center. The adjusting support (6) is arranged on the adjusting part (5), and the supporting main rod (7) is movably and hingedly arranged on the adjusting support (6). The upper end of each supporting main rod (7) is movably and hingedly connected with the tower leg seat (10), and the tower leg (1) is fixedly arranged on the tower leg seat (10). The supporting auxiliary rod (8) is movably and hingedly arranged on the positioning seat (9) and is consistent in number with the supporting main rod (7), and the upper end of the supporting auxiliary rod (8) is movably and hingedly arranged in the upper part of the corresponding supporting main rod (7).

2. The foundation for a transmission line tower suitable for complex terrain according to claim 1, characterized in that: The bearing part (4) is a steel plate, and a plurality of positioning holes (11) are arranged on the two sides of the bearing part (4) in the axial direction, and the positioning holes (11) on the two sides are arranged opposite to each other. A plurality of anchor rods (14) are arranged on the lower surface of the steel plate, and the anchor rods (14) are fixedly arranged in the concrete platform (3) downward.

3. The foundation for a transmission line tower suitable for complex terrain according to claim 1, characterized in that: The adjusting part (5) is a steel rail, which is welded and fixed with the bearing part (4) to form a convex shape.

4. The foundation for a transmission line tower suitable for complex terrain according to claim 1, characterized in that: The adjusting support (6) is a sliding block structure matched with the adjusting part (5), and at least two adjusting holes (13) matched with the positioning holes (11) are arranged on the two sides of the adjusting support (6) in the axial direction. Each adjusting hole (13) is fixedly connected with the positioning hole (11) through a bolt.

5. The foundation for a transmission line tower suitable for complex terrain according to claim 1, wherein: The supporting main rod (7) is arranged in an H shape.

6. The foundation for a transmission line tower suitable for complex terrain according to claim 1, characterized in that: The positioning seat (9) is welded and fixed with the bearing part (4), and a hinge ear plate is arranged on the positioning seat (9).

7. The foundation for a power transmission line tower suitable for complex terrain according to claim 4, characterized in that: A screw sleeve (12) is coaxially arranged below each positioning hole (11), and the top end of the screw sleeve (12) is welded and fixed on the bearing part (4).

8. The foundation for a transmission line tower suitable for complex terrain according to claim 1, characterized in that: The thickness of the bearing part (4) is not less than 1 cm.

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