Star-shaped foundation and construction method thereof

Abstract

The invention relates to a star-shaped foundation, which comprises a star-shaped component embedded in the ground, a plurality of hair anchor rod bodies, and supporting plates and anchor plates matched with the hair anchor rod bodies. The star-shaped member is provided with several radially protruding arms, and the center is provided with an anchor hole I; the outer end of each arm is provided with an anchor hole II; the center of the backing plate is provided with an anchor hole III; The bottom ends of several hair anchor rods are anchored, and the top ends pass through the anchor hole I or the anchor hole II of the star-shaped member respectively, and pass through the anchor hole III of the backing plate to connect with the anchor plate; The beard and hair bolt body is made of tensile filaments, the lower part of the tensile filaments is bundled with detonator-equipped water-resistant explosives, and the tensile-resistant filaments are evenly distributed around the detonator-equipped water-resistant explosives along the circumferential direction. The invention also discloses a construction method of the foundation. The invention has a simple structure, fundamentally changes the foundation form and construction method, significantly saves investment and reduces spoil.

Description

technical field [0001] The invention relates to foundations and foundation forms, in particular to star foundations and construction methods thereof. Background technique [0002] At present, most superstructures are heavy and occupy a large area. The foundation is a compressive foundation, that is, the foundation mainly bears the downward load imposed by the superstructure and must meet the deformation and stability requirements. When the foundation meets the above requirements, It can meet the anti-overturning requirements. Typical foundation types of this type include independent foundations, strip foundations, raft foundations, etc. The uplift-resistant foundations mainly include large-scale excavation foundations, excavation-excavation foundations, and explosive-expanded pile foundations, etc.; The backfill soil constitutes the uplift-resistant soil to maintain the stability of the foundation; the excavated and enlarged bottom foundation category refers to the foundati...

AI Technical Summary

Problems solved by technology

The anti-uplift foundation on the rock and soil foundation is not the same. Whether it is a large-scale excavation foundation, excavation-excavation foundation, or explosion-expanded pile foundation, the construction is relatively difficult, and there are large quantities of engineering and energy consumption. It takes a long time, high cost, and causes great damage to the environment, but the resistance it can provide is limited, and the reinforcement effect is not ideal. In order to meet the requirements of uplift stability, the size of the foundation must be increased, which will inevitably increase the spoil and aggravate the damage to the environment

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