Underground trains generate waves that could propagate through various materials, including ground, water and structures. These waves can cause disruptions to both humans and buildings, however, the effects on the ground, tunnel and building stability are questionable. The lack of detailed examination of this phenomenon in existing research raises concerns about potential structural damage and lawsuits. The objective of this study is to deepen the understanding of this phenomenon and its implications after tunnel construction and the train movement. Therefore, this study investigates the impact of train movement within shallow underground tunnels on the surrounding soil and structures, at before, during and after the tunnels pass beneath buildings in densely packed cities. A tunnel-soil-building and train movement model was developed by using PLAXIS 3D software. The basic model of tunnel-ground was firstly simulated to validate the initial work and were compared to an existing case study. Once validated, the plastic-dynamic model of tunnel-ground-building with train movement for the current study was simulated. From the simulation, the basic model show reliability of the model and obtained less than 5% difference in the transverse surface settlement. In the extension of work, the train movement at three different locations of: before the building, under the building and after the building, shown waves of the train does affect the ground settlements and the integrity of building foundation. This study enhances understanding of ground behaviour and building raft foundation due to train movement in shallow tunnels, which important for future design and construction practices.

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

Tunnel-Ground-Building Behavior Due to Train Movements

  • Essameldin Salem,
  • Siti Norafida Jusoh,
  • Khairun Nissa Mat Said,
  • Afikah Rahim,
  • Muhammad Farhan Zolkepli,
  • Muhammad Irfan Shahrin

摘要

Underground trains generate waves that could propagate through various materials, including ground, water and structures. These waves can cause disruptions to both humans and buildings, however, the effects on the ground, tunnel and building stability are questionable. The lack of detailed examination of this phenomenon in existing research raises concerns about potential structural damage and lawsuits. The objective of this study is to deepen the understanding of this phenomenon and its implications after tunnel construction and the train movement. Therefore, this study investigates the impact of train movement within shallow underground tunnels on the surrounding soil and structures, at before, during and after the tunnels pass beneath buildings in densely packed cities. A tunnel-soil-building and train movement model was developed by using PLAXIS 3D software. The basic model of tunnel-ground was firstly simulated to validate the initial work and were compared to an existing case study. Once validated, the plastic-dynamic model of tunnel-ground-building with train movement for the current study was simulated. From the simulation, the basic model show reliability of the model and obtained less than 5% difference in the transverse surface settlement. In the extension of work, the train movement at three different locations of: before the building, under the building and after the building, shown waves of the train does affect the ground settlements and the integrity of building foundation. This study enhances understanding of ground behaviour and building raft foundation due to train movement in shallow tunnels, which important for future design and construction practices.