Vol 2.No 3

A modified damage and fracture phase field model considering heterogeneity for rock-like materials

Xuxin Chen, Zhe Qin

发布时间:2023-11-23

关键词:A modified damage and fracture phase field model considering heterogeneity for rocklike materials

摘要:1 INTRODUCTIONThe damage fracture phase field model, which establishes a connection between damage and fracture mechanics, is gradually becoming a hot spot in solid fracture mechanics. Due to its advantages in analyzing discontinuous mechanical behavior, the traditional damage fracture phase field model is mainly used to study the fracture behavior of materials dominated by tensile cracks. Howe...

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Energy-based analysis of seismic damage mechanism of multi-anchor piles in tunnel crossing landslide area

隧道滑坡区多锚点桩的地震逆袭!

Hong Wei, Honggang Wu, Guojun Ren, Lin Tang, Kang Feng

发布时间:2023-02-21

关键词:ilbert–Huang transform, marginal spectrum, multi‐anchor piles, seismic damage mechanism

摘要:由于传统抗滑桩易产生倾倒和折断破坏,学者们提出将传统抗滑桩和预应力锚索相结合,形成预应力锚索抗滑桩。现在,预应力锚索抗滑桩也由单锚点桩发展至多锚点桩,但缺乏隧道横穿滑坡区多锚点桩的损伤变形机理研究。本文研究结果可为多锚点桩的地震损伤识别提供一种精细化分析途径。

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