Geomechanics and Engineering· 2017Q2
Prediction methods on tunnel-excavation induced surface settlement around adjacent building
- 42citations
- Q2SCImago
- 2017year
Short summary
This paper proposes that surface settlement around adjacent buildings due to tunnel excavation follows corkscrew, skewed, or normal distribution curves depending on the tunnel's position relative to the building, challenging existing Gauss or Peck formula assumptions.
AI-generated from the title and abstract; the full text is not read.
Key points
- Surface settlement patterns around adjacent buildings from tunnel excavation are not universally described by Gauss or Peck formulas.
- Settlement distributions can be corkscrew, skewed, or normal, contingent on the tunnel's location relative to the building.
- New calculation formulas and parameters for corkscrew and skewed distribution curves are presented.
- Numerical simulations and model tests confirm the validity of these proposed distribution characteristics within a defined range.
AI-generated from the title and abstract; the full text is not read.
Abstract
With the rapid development of urban underground traffic, the study of soil deformation induced by subway tunnel construction and its settlement prediction are gradually of general concern in engineering circles. The law of soil displacement caused by shield tunnel construction of adjacent buildings is analyzed in this paper. The author holds that ground surface settlement based on the Gauss curve or Peck formula induced by tunnel excavation of adjacent buildings is not reasonable. Integrating existing research accomplishments, the paper proposed that surface settlement presents cork distribution curve characters, skewed distribution curve characteristics and normal distribution curve characteristics when the tunnel is respectively under buildings, within the scope of the disturbance and outside the scope of the disturbance. Calculation formulas and parameters on cork distribution curve and skewed distribution curve were put forward. The numerical simulation, experimental comparison and model test analysis show that it is reasonable for surface settlement to present cork distribution curve characters, skewed distribution curve characteristics and normal distribution curve characteristics within a certain range. The research findings can be used to make effective prediction of ground surface settlement caused by tunnel construction of adjacent buildings, and to provide theoretical guidance for the design and shield tunnelling.
The authors' abstract, as published at the source. Geomechanics and Engineering, 2017 · DOI ↗
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Field: General Engineering
General EngineeringEngineering