Umbrella-shaped anti-floating anchor rod device and using method

Abstract

The invention discloses an umbrella-shaped anti-floating anchor rod device. The umbrella-shaped anti-floating anchor rod device comprises an umbrella-shaped anchor sleeve, an outer cylinder and an anchor rod; the umbrella-shaped anchor sleeve sleeves the outer side of the anchor rod; the outer cylinder is located on the periphery of the anchor rod; the umbrella-shaped anchor sleeve is of a telescopic structure, when the umbrella-shaped anchor sleeve is in a contraction state, the umbrella-shaped anchor sleeve is positioned on the inner side of the outer cylinder, and when the umbrella-shaped anchor sleeve is in a stretching state, the umbrella-shaped anchor sleeve extends out of an anchor hole. The defect that in the prior art, the anchoring effect of an anchor rod system is suddenly reduced and even fails when the anchor rod system loosens along with the change of a stratum is overcome; the umbrella-shaped anti-floating anchor rod device has the advantages that the stress condition between the anchor rod system and the stratum is changed, the anchor rod system and an existing stratum are connected into a whole, and the anti-pulling effect is enhanced. The invention further discloses a using method of the umbrella-shaped anti-floating anchor rod device.

Description

technical field [0001] The invention relates to the technical field of civil engineering, in particular to an umbrella-shaped anti-floating anchor device. The invention also relates to a method of using the umbrella-shaped anti-floating anchor device. Background technique [0002] In the field of civil engineering, the structure of anchor rods is often used. The use scenarios of anchor rods are diverse, the construction is convenient, and the functions are outstanding. For projects such as shallow buried tunnels and foundation pits in water-rich strata, there will be risks of structure floating, displacement, and deformation, and anti-floating design is required. In anti-floating design, structures such as anti-floating anchor rods and anti-lift piles are commonly used. For the anti-floating anchor, due to factors such as construction technology or stratum, after the anchor hole is sealed, the anchor system will no longer be tightly combined with the stratum as time goes b...

AI Technical Summary

Problems solved by technology

Because the umbrella-shaped folding rod group needs space to open, it cannot be opened without reaming, so it is necessary to perform reaming operation at the end. Holes and other processes, the equipment and installation process is very complicated

When the ground is hard and the agitation of the swirling jet cannot provide an open working space, the self-contained umbrella-shaped expansion structure cannot be used

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