Stiff composite pile body anchor rod device and construction technology

Abstract

The invention discloses a stiff composite pile body anchor rod device. The stiff composite pile body anchor rod device comprises an anchor rod body and cement soil arranged on the periphery of the anchor rod body. A prefabricated concrete pile body is arranged in the cement soil, an upper end plate and a lower end plate are correspondingly and fixedly arranged at the upper end and the lower end of the prefabricated concrete pile body, a core pipe is arranged in the concrete pile body, the core pipe is arranged on the end plates in a penetrating mode, positioning supports used for fixing the core pipe are fixedly arranged on one side of the upper end plate and one side of the lower end plate, a grouting body is arranged between the concrete pile body and the core pipe in a filling mode, and a plurality of rod ribs are installed in the core pipe. The rod ribs can be made into free sections or non-free sections according to actual conditions, the problem that a traditional anchor rod and an uplift pile are insufficient in durability is solved, the stress mode of the rod body is improved, and the durability of the composite anchor rod is improved; and meanwhile, the stiff composite pile body anchor rod device has the advantages of being high in construction speed, high in bearing capacity, low in engineering cost and the like.

Description

technical field [0001] The invention relates to the fields of anti-floating of building (structure) foundations, anti-floating of underground engineering (comprehensive pipe gallery), foundation pit and slope retaining engineering, and specifically relates to a rigid composite pile body anchor device and a construction process. Background technique [0002] In recent years, with the rapid development of urban construction and urban renewal and transformation, the buried depth of building foundations has continued to increase, and the underground space has continued to expand vertically, making the problem of anti-floating more and more urgent. At present, the problem of anti-floating of underground structure foundations is solved The measures mainly include releasing water buoyancy method, increasing counterweight method and setting anti-floating components such as uplift piles or anti-floating anchor rods. Among them, setting anti-floating components such as anti-lift piles...

AI Technical Summary

Problems solved by technology

[0005] Therefore, the present invention provides a rigid composite pile anchor device and construction technology, which effectively solves the problems of poor anchor durability, low bearing capacity and high engineering cost in the prior art

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