Batten mortise-tenon assembly type foundation for power transmission tower and construction method

Abstract

The invention discloses a batten mortise-tenon assembly type foundation for a power transmission tower and a construction method. The assembly type foundation comprises a plurality of lower strip-shaped foundation bodies arranged side by side, a plurality of upper strip-shaped foundation bodies arranged side by side, and a stand column. The upper strip-shaped foundation bodies are located above the lower strip-shaped foundation bodies and intersect with the lower strip-shaped foundation bodies. Every two adjacent lower strip-shaped foundation bodies / upper strip-shaped foundation bodies are spaced from each other by a space. A stand column installation hole is formed between the two lower strip-shaped foundation bodies and the two upper strip-shaped foundation bodies intersecting with the lower strip-shaped foundation bodies at the center. The stand column is formed by a plurality of stand column foundation blocks which are arranged in a stacked mode. A mortise-tenon structure is formedbetween every two vertically-adjacent stand column foundation blocks. The lower strip-shaped foundation bodies, the upper strip-shaped foundation bodies and the stand column foundation bodies are precast concrete parts. According to the mortise-tenon assembly type foundation form is adopted, and prefabricated foundation battens are made small and modular, so that the occupied area for construction is small, assembly is convenient, and mechanical construction in a small space is facilitated.

Description

technical field [0001] The invention relates to the technical field of electric power construction, in particular to the foundation construction technology of a power transmission tower. Background technique [0002] At present, most of the transmission tower foundation construction adopts the method of on-site excavation and pouring. The large excavation foundation construction site is large, there are many construction machines, and it requires a lot of labor and a long construction time. When the tower is located on the cultivated land or beside the road, the construction area should not be too large, the construction time should not be too long, and there must be rural roads and machine-cultivation roads available. [0003] The problems existing in the foundation of the transmission tower by on-site excavation and pouring are mainly reflected in: [0004] 1) The traditional large excavation foundation has a long construction period; [0005] When the line tower is loca...

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Problems solved by technology

[0005] When the tower position of the line is in the cultivated land, the construction period cannot be too long due to the influence of seasonal cultivation, and the cast-in-place concrete structure cannot complete the foundation construction work in a short time due to the limitation of its own solidification period

[0006] 2) Great impact on the environment;

[0007] Since the large-scale excavation foundation requires on-site concrete mixing, pouring, steel cage production and other processes, the requirements for the construction site are relatively large, which is not conducive to the protection of the surrounding environment of the tower site, and also causes certain difficulties for the subsequent restoration work.

[0008] 3) There are differences in the quality of foundation individual construction;

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