Scholarlink

This study investigates the impact of deep foundations on ground-borne vibrations induced by metro tunnel excavation using a Tunnel Boring Machine (TBM). A Finite Element Method (FEM) coupled with the Thin Layer Method (TLM) simulates the dynamic response of a single pile and group of piles (with and without building mass) near a circular tunnel. The study analyzes the ‘added-pile effect’ through insertion gain (IG) over a frequency range relevant to human perception. Results reveal two dominant mechanisms—amplification and attenuation—governed by pile configuration, soil properties, and structural mass. Notably, group of piles with mass exhibit resonance amplification near the eigen frequencies of the added structural mass, while high-frequency attenuation occurs across all cases. These insights contribute to optimizing foundation design for vibration-sensitive structures.

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Effect of Piles on Ground Borne Vibrations Due to Tunnel Excavation by TBM

  • 会议论文

  • 发表日期：

    2025年

查看全文
  • Yara Aslan,
  • Marianna Feuillas,
  • Theodora Makrypidi,
  • Charisis Chatzigogos,
  • Antoine Rallu

摘要

This study investigates the impact of deep foundations on ground-borne vibrations induced by metro tunnel excavation using a Tunnel Boring Machine (TBM). A Finite Element Method (FEM) coupled with the Thin Layer Method (TLM) simulates the dynamic response of a single pile and group of piles (with and without building mass) near a circular tunnel. The study analyzes the ‘added-pile effect’ through insertion gain (IG) over a frequency range relevant to human perception. Results reveal two dominant mechanisms—amplification and attenuation—governed by pile configuration, soil properties, and structural mass. Notably, group of piles with mass exhibit resonance amplification near the eigen frequencies of the added structural mass, while high-frequency attenuation occurs across all cases. These insights contribute to optimizing foundation design for vibration-sensitive structures.