Failure Patterns and Energy Analysis of Shaft Lining Concrete in Simulated Deep Underground Environments
作者： Yucheng Zhou , Juanhong Liu , Haitao Yang , Hongguang Ji
DOI: 10.1007/S11595-020-2273-X
关键词:
摘要: The failure patterns and energy evolution of three types shaft lining concrete subjected to static dynamic loading were reported. damage characteristics determined by means a uniaxial hydraulic servo machine, acoustic emission (AE) equipment, split Hopkinson pressure bar (SHPB) an ultrasonic wave analyser. experimental results indicate that the confluence multiple cracks forms penetrating cross section in normal high-strength (NHSC) under condition loading, while elastic surges out at can cause tremendous when loading. A single crack was into propagation directions due presence fibres steel fibre-reinforced (SFRC); adding fibre should be effective way dissipate energy. non-steam-cured reactive powder (NSC-RPC) designed this paper store more than concrete, as NSC-RPC exhibits strong ability resist impact. Applying long-service material structure deep underground engineering is quite effective.
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