Prefabricated pile cap foundation, power transmission tower and construction method for power transmission tower

Abstract

The invention discloses a prefabricated pile cap foundation, a power transmission tower and a construction method for the power transmission tower. The prefabricated pile cap foundation comprises a pile, a prefabricated pile cap and grout, wherein the pile is provided with a pile head, a plurality of connecting fasteners are arranged on the top surface of the pile head in a protruding mode, the prefabricated pile cap is arranged on the pile in a covering mode, a containing groove is concavely formed in the bottom surface of the prefabricated pile cap, a grouting cavity is formed between the inner groove wall of the containing groove and the pile head in a matched mode, all the connecting fasteners are located in the grouting cavity, at least one grouting hole is formed in the side surface of the prefabricated pile cap, and the grout is injected into the grouting cavity from the grouting holes to be fixedly connected to the pile cap and the pile head to form an integrated structure. According to the prefabricated pile cap foundation, the power transmission tower and the construction method for the power transmission tower, the prefabricated pile cap is directly transported to a construction site after being manufactured so that the costs of manpower, material resources, time and the like required to be consumed in the process of pouring the pile cap on site can be avoided, the construction period can be effectively shortened, the construction cost can be reduced, and meanwhile, the influence on the surrounding environment can be avoided; and in addition, the prefabricated pile cap and the pile are connected in an assembly mode, and therefore the assembly and disassembly can be realized without damaging the use performance, and the cyclic utilization of materials can be realized.

Description

technical field

[0001] The invention relates to the technical field of electric power facility construction, in particular to a prefabricated cap foundation, a power transmission tower and a construction method thereof. Background technique

[0002] Traditionally, the concrete foundation construction of transmission lines and substations is an important part of power engineering construction. Now the foundation forms that are widely used are reinforced concrete independent foundations or pile foundations. There are many disadvantages in the operation process of the cast-in-place foundation form: 1) The construction period is long. A series of construction steps such as foundation excavation, foundation fabrication, concrete maintenance, and foundation demolition all take a long time, and the maintenance cycle alone generally takes about 28 days; 2) The construction cost is high. The construction links such as excavation of foundation pit, rental of machinery, mold manufactu...

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