Construction method of variable-cross-section edge-grooving round bottom plate assembly type foundation

Abstract

The invention relates to a construction method of an assembly type foundation for a power transmission line, in particular to a construction method of a variable-cross-section edge-grooving round bottom plate assembly type foundation. The method is characterized in that a foundation bottom plate comprises a base and a foundation module body which are arranged in the center position of the bottom of a pit, wherein the foundation module body is divided into a plurality of identical sector-ring-shaped splicing modules which are in one-to-one correspondence with tenon blocks on the base; one side surface of an inner ring of each sector-ring-shaped splicing module is provided with a mortise groove which is connected with the tenon block of the base in a matched mode; and meanwhile a triangular protruding block and a triangular groove which are spliced with each other are further arranged. The in-pit trial assembly is not needed in the operation process, all the sector-ring-shaped splicing modules are connected from the side to the base one by one, meanwhile, the sector-ring-shaped splicing modules are connected in a mortise and tenon joint mode, and the crack pouring and filling are performed after the connection is completed. The method has the advantages that the volume of the module is effectively reduced, the splicing difficulty is reduced, the construction is simple and convenient, the construction procedure is greatly simplified, the construction period is shortened, and the construction efficiency is improved.

Description

technical field [0001] The invention relates to a construction method of an assembled foundation for a power transmission line, in particular to a construction method of a variable cross-section "grooving on the side" circular bottom plate assembled foundation. Background technique [0002] Prefabricated foundation, also known as prefabricated foundation, is a foundation type that is prefabricated in a factory and assembled on site. When applied in transmission lines, compared with cast-in-place concrete foundations, it can shorten the construction period and improve the quality of foundation processing (the quality is better controlled in the factory environment). The construction is less affected by the season and can improve the degree of mechanized construction. It is a power transmission The development direction of line foundation construction. The existing prefabricated foundation of transmission lines adopts a rectangular bottom plate, and most of the foundation mod...

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Problems solved by technology

[0003] 1) Since the shape of the rectangular foundation is only symmetrical on the cross axis, there are fewer modules that can be divided longitudinally, resulting in a large weight of the corresponding single-piece foundation module, which is inconvenient for construction and hoisting, and difficult to operate

If the horizontal (height direction) block is used, the area of ​​the basic module will be large, and the operation will be more difficult and inconvenient

[0004] 2) Due to the difference in length and width, the rectangular foundation generally needs to be assembled in the pit, so the construction process is more complicated

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