Weight type steel pipe pile foundation of transmission line self-supporting rod

Abstract

The invention discloses a weight type steel pipe pile foundation of a transmission line self-supporting rod. The weight type steel pipe pile foundation comprises a steel pipe pile body and a plurality of precast concrete blocks arranged on the steel pipe pile body in a sleeving mode. A steel plate is arranged at the bottom of the steel pipe pile body and used for bearing the precast concrete blocks. The precast concrete blocks on the steel pipe pile body are connected in series to form a weight set, the top of the weight set is sleeved with a precast concrete bearing platform, a flange is arranged on the top of the steel pipe pile body and located on the inner side of the steel pipe pile body, and bolts used for installing a steel rod tube are disposed on the flange. All the parts of the weight type steel pipe pile foundation are prefabricated components, construction quality is guaranteed, and the construction process is accelerated. In the aspect of foundation stress, the concrete weight set effectively enlarges the contact face of the single-pile foundation and soil, lateral soil pressure is increased, and the anti-overturning performance of the foundation is greatly improved.

Description

technical field [0001] The invention relates to a weight-type steel pipe pile foundation, which is suitable for self-supporting poles of power transmission lines in urban areas and belongs to the technical field of power transmission line construction. Background technique [0002] During the construction of high-voltage power transmission and transformation projects, each iron tower needs to be fixed on the corresponding foundation when it is installed. At present, under the geological conditions of silty clay, the commonly used steel pipe pole foundations include plate foundations, cast-in-situ pile foundations and steel pipe pile foundations, etc. Among them, the slab foundation is made of concrete and steel bars, which has the disadvantages of large excavation area, cast-in-place, and long construction period; the cast-in-situ pile foundation is also made of concrete and steel bars, and has mechanical holes, cast-in-place, and long construction period. Defects such as le...

AI Technical Summary

Problems solved by technology

[0002] During the construction of high-voltage power transmission and transformation projects, each iron tower needs to be fixed on the corresponding foundation when it is installed. At present, under the geological conditions of silty clay, the commonly used steel pipe pole foundations include plate foundations, cast-in-situ pile foundations and steel pipe pile foundations, etc. Among them, the slab foundation is made of concrete and steel bars, which has the disadvantages of large excavation area, cast-in-place, and long construction period; the cast-in-situ pile foundation is also made of concrete and steel bars, and has mechanical holes, cast-in-place, and long construction period. Defects such as length; the foundation of steel pipe piles is composed of steel pipes, directly driven into the machine, and the construction period is short, but it is greatly affected by the geology

Images