Self-expanded body anti-floating anchor rod

Abstract

The invention discloses a self-expanded body anti-floating anchor rod, and relates to the technical field of construction engineering. The self-expanded body anti-floating anchor rod is a pressure-bearing type self-expanded body anchor rod and includes a main rod, an expanded body anchoring mechanism and a driving piece, wherein the expanded body anchoring mechanism is arranged on the main rod, the driving piece sleeves the expanded body anchoring mechanism, and the driving piece drives the expanded body anchoring mechanism to expand in the radial direction and to move along the main rod in the axial direction so as to perform hole expanding movements. According to the self-expanded body anti-floating anchor rod, the driving piece drives the expanded body anchoring mechanism to expand in the radial direction and to move along the main rod in the axial direction to perform the hole expanding movements, thus a hole diameter of a deep hole is widened, hole expanding positioning is accurate, and the shape is fixed; and the self-expanded body anti-floating anchor rod is simple in structure, convenient to operate and good in anti-floating effect.

Description

technical field [0001] The invention relates to the technical field of construction engineering, in particular to a self-expanding anti-floating anchor rod. Background technique [0002] With the increasing development of the national economy, large-scale implementation of urban construction. In order to fully develop and utilize the underground space, the use of buried underground structures as garages and other functions is gradually increasing. With the emergence of high-rise and super high-rise buildings, the foundation is buried deeper and deeper. For the case of underground structures with large building area, deep foundation and relatively few building floors, when the groundwater level is high, the self-weight of the building structure is not enough to resist the buoyancy of groundwater. Therefore, it is necessary to use anti-floating anchor rods to resist the buoyancy brought by groundwater to buildings. [0003] In order to improve the bearing capacity of the ant...

AI Technical Summary

Problems solved by technology

[0003] In order to improve the bearing capacity of the anti-floating anchor, the volume of the anchor hole is usually expanded in the anchorage section, and the commonly used high-pressure water scouring rock and soil or blasting methods form holes with irregular shapes or reduce the mechanical parameters of the rock and soil body

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