Analysis and Treatment of Cracking in an Anchor-tensioned Pile-sheet Retaining Wall
The cracks in a certain anchor-tensioned pile-sheet retaining wall exhibit horizontal fluctuations,parallel to the cross-section of the piles,and are not continuous across the cross-section.The cracks are wider on the free-face side of the piles and gradually disappear towards the soil-facing side,manifesting as bending-induced cracking.Due to factors such as the poor mechanical properties of karst breccia at the back of the retaining wall,over-excavation at the base of the wall,and failure of the anchor head to connect the steel reinforcement joints,the bending moment on the free-face side of the piles exceeds their bending capacity,resulting in horizontal tensile cracks parallel to the cross-section.Reinforcement and treatment were carried out using a combination of"new anchor cables and waist beams+crack repair+weep hole restoration"achieving good results that can serve as a reference for similar projects.
Anchor-tensioned Pile-sheet Retaining WallBending-induced CrackingCause AnalysisReinforcement and Treatment
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