ArticleScientific reports2025
Study on the mechanical characteristics and anchorage performance of the anchor cable with precast internal-anchor-head (PIAC).
Article in Scientific reports, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
In order to improve the anchoring force of traditional anchor cables while ensuring low cost, this paper proposed a new-type anchor cable structure with a precast internal-anchor-head (PIAH) at the anchor cable end. The reliability of the new structure was thoroughly validated through theoretical analysis, indoor pull-out experiments, and numerical simulations. Firstly, the mechanical pattern based on the characteristics and anchoring mechanism of the PIAH structure was analyzed, and the calculation methods under different failure modes were proposed. Secondly, a full-scale physical model experiment was conducted to study the effects of varying lengths PIAH on the tensile stress of the grout, stress distribution between grouting sections and the surrounding rock, shear stress distribution between PIAH and grout, and the yield conditions of the PIAH. Results show that after applying the PIAH, the ultimate bearing capacity increases from 796.4 to 921.2 kN, and the ultimate strain decreases from -1219.7 × 10
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