Geyang Song

Geyang Song
University of Oxford | OX · Department of Engineering Science

PhD

About

18
Publications
2,152
Reads
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77
Citations
Introduction
Geyang Song currently works at the Department of Civil Engineering, University of Oxford. Geyang does research in Civil Engineering.
Additional affiliations
April 2021 - present
University of Oxford
Position
  • Research Assistant
March 2019 - November 2020
University of Nottingham
Position
  • Research Assistant
Education
October 2016 - October 2019
University of Nottingham
Field of study
  • Tunnelling
October 2013 - October 2014
Imperial College London
Field of study
  • Soil mechanics
October 2010 - October 2013
The University of Sheffield
Field of study
  • Civil

Publications

Publications (18)
Article
Deep large-diameter caisson shafts are a popular means of constructing underground storage and attenuation tanks and pumping stations for the water and wastewater industry. One of the key design concerns for these structures is resistance to flotation during periods where the tanks are only partially filled or empty. This paper uses two-dimensional...
Article
The writers thank the discussers for their interest in our work, and for the interesting points raised. Some additional information and discussion about these points is presented subsequently.
Article
Reinforcing structural members and construction materials using recycled fibers has become popular in the past decades due to sustainable development concerns. The recycled fibers as soil reinforcement elements contribute to the increase in shear strength by distributing stresses exerted in the soil along the length of the recycled fibers. Loess, w...
Article
Tunnel excavation in urban areas causes ground movements that could damage existing nearby piled structures. Geotechnical centrifuge modelling has been widely used as a tool to study problems related to tunnelling activities and its interaction with existing infrastructure systems. Recent hybrid centrifuge tests using the Coupled Centrifuge-Numeric...
Article
Tunnel excavation in urban areas causes ground movements that could damage existing nearby piled structures. In practice, to protect structures from tunnelling-induced damage, a stiff protective wall can be constructed between the tunnel and the adjacent piled structure. In this paper, results from four hybrid geotechnical centrifuge tests (where d...
Article
Preliminary estimations of shaft resistance of rock-socketed piles are usually conducted using empirical formulations which relate to the uniaxial compressive strength (σ_c) of the weaker material involved (intact rock or pile). However, there are other factors, such as the degree of socket roughness, that could affect the shaft resistance of rock-...
Article
One challenge for geotechnical centrifuge testing of soil-structure interaction problems is the reliable measurement of induced structural strains/forces. This paper presents a novel application of fibre Bragg grating (FBG) sensors for strain measurement within geotechnical centrifuge tests. FBG sensors have several advantages for centrifuge testin...
Article
Tunneling-induced ground movements can affect the equilibrium state of an existing pile, causing uneven settlement among pile groups and damage to connected structures. This paper presents results from five centrifuge tests aimed at evaluating the load redistribution mechanisms that occur within piles located close to tunnel excavation. Two main me...
Conference Paper
Previous research and field experience have demonstrated that socket roughness is a crucial factor that affects the shaft resistance of rock-socketed piles. This research aims to present a methodology to evaluate the shaft resistance behaviour of a rough axially loaded pile socketed in soft rock. Geotechnical centrifuge tests were conducted at 50-g...
Article
Predicting the impact of tunnelling-induced ground movements on existing foundation systems or infrastructure is an important stage during tunnel design or risk assessment processes. Centrifuge modelling has been used extensively as a tool to study soil movements caused by tunnelling and their interactions with existing structures. In 2D plane-stra...
Article
In urban areas, due to the limited underground space, tunnels are being built close to or underneath existing buried foundations. As a result, it is essential to understand the effect of tunnelling on nearby structures and buried foundations. Tunnel-structure interaction problems have been widely investigated via numerical and physical modelling as...
Thesis
In urban areas, due to the limited underground space, tunnels are being built close to or underneath existing buried foundations. As a result, it is essential to understand the effect of tunnelling on nearby structures and buried foundations. Tunnel-structure interaction problems have been widely investigated via numerical and physical modelling as...
Conference Paper
Full-text available
Understanding the ground response to tunnelling is important for evaluating its effects on existing structures and buried infrastructure. The simulation of tunnel ground loss in soil using a geotechnical centrifuge is a convenient and widely accepted approach to analysing ground movements induced by tunnelling. Tunnel volume loss in the centrifuge...
Conference Paper
Full-text available
The effect of tunnel construction on ground displacements is an impor- tant problem for tunnelling engineers. Numerical methods, including continuum and discrete element methods, have been used to evaluate tunnelling induced ground displacements. In this paper, the ability of numerical methods to replicate the response to tunnelling of a real soil...
Conference Paper
Full-text available
Soil surface greenfield settlement induced by tunnelling is examined using a small scale centri-fuge facility. Ground disturbance is simulated using classical model tunnel volume loss techniques. The de-velopment of the miniature tunnel and associated control systems is described. The experimental data is com-pared to predictions using the Gaussian...

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Projects

Project (1)
Project
To understand to the effect of tunnelling induced ground movement to piled structure, and use retaining structure (retaining wall) to protect the piled structure from tunnelling.