Self-equalization multi-bundle pre-stressed anchor cable connection structure and construction method thereof

Abstract

Disclosed are a self-equalization multi-bundle pre-stressed anchor cable connection structure and a construction method thereof. Pre-stressed anchor cables are symmetrically anchored on the left sideand the right side of a fender pile body, and free segments of the pre-stressed anchor cable encircle the fender pile body on the front side of the fender pile body and are crosswise fixed through anchor cable connectors. Each anchor cable connector comprises two steel cushion blocks which are symmetrically arranged on the left and the right, and a spring is arranged between the two steel cushionblocks. A threading hole in the rear portion of a drive anchoring block and an anchoring hole in the front portion of a driven anchoring block form a first hole channel for driven anchoring pre-stressed anchor cables to run through, and a threading hole in the rear portion of the driven anchoring block and an inner side hole of an anchoring hole in the front portion of the drive anchoring block form a second hole channel for drive anchoring pre-stressed anchor cables to run through. The self-equalization multi-bundle pre-stressed anchor cable connection structure and the construction method thereof avoid using a profile steel enclosing purlin, effectively save steel materials, reserve sufficient construction space for a foundation trench, and meanwhile can guarantee that each fender pile bears simple and clear stress and keeps balance, greatly improve foundation pit supporting safety, and improve stress equilibrium of multiple bundles of the pre-stressed anchor cables and the foundation pit supporting safety.

Description

technical field [0001] The invention belongs to the field of foundation pit support, in particular to a prestressed anchor cable connection structure and a construction method thereof. Background technique [0002] At present, the retaining pile support method in the field of foundation pit support usually adopts the method of retaining piles plus profiled steel purlins and prestressed anchor cables. Due to the large volume and weight of the profiled steel purlins, the construction of the fertilizer tank for the foundation pit The space is narrower, which seriously affects the construction of the basement exterior wall and the backfilling and compaction of the fertilizer tank of the foundation pit. Contents of the invention [0003] The purpose of the present invention is to provide a self-balanced multi-bundle prestressed anchor cable connection structure and its construction method. The volume and weight of the purlins in Sinosteel are relatively large, resulting in a n...

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Problems solved by technology

[0002] At present, the retaining pile support method in the field of foundation pit support usually adopts the method of retaining piles plus shaped steel purlins and prestressed anchor cables. Due to the large volume and weight of the shaped steel purlins, the construction of the fertilizer tank for the foundation pit The space is narrower, which seriously affects the construction of the basement exterior wall and the backfilling and compaction of the fertilizer tank of the foundation pit

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