Geyang Song

ORCID: 0000-0002-0832-6991
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About
Contact & Profiles
Research Areas
  • Geotechnical Engineering and Underground Structures
  • Geotechnical Engineering and Analysis
  • Geotechnical Engineering and Soil Stabilization
  • Grouting, Rheology, and Soil Mechanics
  • Geotechnical Engineering and Soil Mechanics
  • Civil and Geotechnical Engineering Research
  • Groundwater flow and contamination studies
  • Geophysics and Sensor Technology
  • Landslides and related hazards
  • Rock Mechanics and Modeling
  • Advanced Fiber Optic Sensors
  • Soil and Unsaturated Flow

University of Oxford
2021-2024

Science Oxford
2024

Xi'an University of Architecture and Technology
2021

University of Nottingham
2018-2021

Urban tunnelling projects pose significant risks to the integrity of nearby structures due ground movements induced by excavation process. Embedded walls are commonly employed as a protective measure mitigate these adverse effects. This paper presents comprehensive numerical investigation into effects embedded on tunnelling-induced displacements, aiming provide insights and recommendations for optimal wall design. The study assesses impact varying length horizontal distance from tunnel soil...

10.1680/jgeot.23.00307 article EN Géotechnique 2024-03-21

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 load redistribution mechanisms that occur within piles located close tunnel excavation. Two main are studied: first, those related displacements stress relief tunneling and, second, head changes caused by superstructures (accomplished using a hybrid...

10.1061/(asce)gt.1943-5606.0002401 article EN Journal of Geotechnical and Geoenvironmental Engineering 2020-09-20

Preliminary estimations of shaft resistance rock-socketed piles are usually conducted using empirical formulations that relate to the uniaxial compressive strength (σc) weaker material involved (intact rock or pile). However, there other factors, such as degree socket roughness, could affect piles. In this paper, results from geotechnical centrifuge tests presented demonstrate effect roughness on pile resistance. Aluminum model with different degrees were fabricated and embedded within an...

10.1061/(asce)gt.1943-5606.0002665 article EN Journal of Geotechnical and Geoenvironmental Engineering 2021-09-01

Deep, large-diameter caisson shafts are a popular means of constructing underground storage and attenuation tanks pumping stations for the water wastewater industry. One key design concerns these structures is resistance to flotation during periods when only partially filled or empty. In this paper, two-dimensional numerical analysis used explore undrained uplift provided by under-reaming walls shaft create an enlarged base. The primary aim study assess influence taper angle anchor (i.e....

10.1680/jgeot.21.00090 article EN Géotechnique 2023-03-14

The development of underground spaces inevitably poses significant risks to nearby infrastructure due construction-induced ground displacements. While our understanding tunnel-induced movements is now relatively mature, there a distinct lack literature on large-diameter open caisson shafts. This paper fills this gap by describing results from small-scale laboratory study exploring soil deformation mechanisms during construction in dry sand. Results seven tests are analyzed identify the...

10.1061/jggefk.gteng-11419 article EN Journal of Geotechnical and Geoenvironmental Engineering 2023-08-04

One challenge for geotechnical centrifuge testing of soil–structure interaction problems is the reliable measurement induced structural strains/forces. This paper presents a novel application fibre Bragg grating (FBG) sensors strain within tests. FBG have several advantages testing, in particular their small size and minimal self-weight. gives an overview recently developed installation calibration procedures buried model structures. The effect thermal expansion/contraction materials...

10.1680/jphmg.20.00078 article EN International Journal of Physical Modelling in Geotechnics 2021-04-08
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