Failure analysis and treatments of a loess tunnel being constructed in ground fissure area
Engineering Failure Analysis（2022）
Abstract
•Potential causes and mechanisms of collapse in a metro tunnel were analysed.•A discrete element model was established to simulate failure process.•Force-chains were observed in the model which is the direct cause of the collapse.•Treatments were detailed and the effects and shortcomings were discussed.
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Key words
Loess tunnel,Collapse,Treatment,Ground fissures,Failure process
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