Conical pile foundation suitable for strong frost heaving foundation

Abstract

The invention discloses a conical pile foundation suitable for a strong frost heaving foundation, and relates to the technical field of photovoltaic power generation, the conical pile foundation comprises a ground, a conical pile is mounted at the top of the ground, a supporting rod is inserted into the inner side wall of the conical pile, and a driving mechanism is arranged in the conical pile, the conical pile foundation is arranged underground, the inclined angle of the inclined face of the conical pile is adjusted, the influence of tangential frost heaving force and negative friction on the bearing capacity of the pile foundation can be effectively reduced, foundation materials needed by the pile foundation structure can be saved, the occupied area is reduced, and the engineering construction problem of a photovoltaic power station in a high-latitude complex environment is solved, the restriction of development of the photovoltaic industry in seasonal frozen soil regions is broken, in addition, the foundation side inclination angle of the sunny side of the photovoltaic panel can be increased, the influence of frost heaving force and negative friction resistance on the pile foundation can be reduced, the overall strength of the pile foundation structure is enhanced, the anti-pulling stability of the pile foundation is improved, and the durability is high, and the anti-frost heaving effect can still be kept under the action of repeated freezing and thawing.

Description

technical field [0001] The invention relates to the technical field of photovoltaic power generation, in particular to a conical pile foundation suitable for strong frost-heave foundations. Background technique [0002] At high latitudes, cooler temperatures cause moisture in the soil to freeze. The freezing of moisture in the soil mass causes a volume expansion of 9% due to the phase change of water. For fine-grained soil, the frozen area will generate low-temperature suction, causing unfrozen water to migrate to the frozen area, and gradually form ice lenses on the frozen surface, filling and squeezing the pores between soil particles, resulting in further frost heave deformation. During this process, when the groundwater content in the frozen area is rich and the water level is shallow, a large amount of water migration will occur, causing severe frost heave. When frost heave occurs in the soil, the foundation embedded in the soil will be affected by the frost heave for...

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Problems solved by technology

[0004] The purpose of the present invention is to solve the problems existing in the prior art that the photovoltaic base is a straight up and down base, which cannot effectively cope with the frost heaving effect on the ground, causing the position of the photovoltaic panel to shift, resulting in the photovoltaic panel The service life of the existing foundation is reduced, and the existing base, due to being buried underground for a long time, will corrode, causing the entire device to topple and causing damage to the photovoltaic panel. conical pile foundation

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