A large deep foundation pit side collapse prevention support structure

Abstract

This utility model relates to the technical field of anti-collapse support structures, and discloses an anti-collapse support structure for the sides of large deep foundation pits, including side baffles and corner baffles, both with protrusions at both ends and in the middle. Adjacent side baffles are slidably fitted onto a sliding groove via a locking strip, and adjacent corner baffles are slidably fitted onto a sliding groove via a locking strip. The outer side of the side baffles is bolted to a locking frame and a side crossbeam, and the outer side of the corner baffles is bolted to a locking frame and a corner crossbeam. The locking frame and the crossbeam are connected via bolt holes. The side baffles and corner baffles have anchor holes, with rotatable retaining rings threaded into the holes. The retaining rings are connected to anchor seats via bearings, and have handles and ball bearings on their outer sides. This utility model improves construction efficiency and economy through modular sliding connections and a detachable support system, shortens the construction cycle through rapid assembly, reduces costs through reusable components, resists lateral earth pressure through the overall structure, and enhances the reinforcement effect by combining anchor bolts with synergistic support, thus avoiding the risk of collapse.

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