All Outputs (50)

Tunnelling-induced wall damage: an appraisal of elastoplastic constitutive models for the masonry (2024)
Journal Article
Yu, Y., Franza, A., Ghiassi, B., Canhoto Neves, L., & Marshall, A. M. (in press). Tunnelling-induced wall damage: an appraisal of elastoplastic constitutive models for the masonry. Tunnelling and Underground Space Technology,

This paper investigates the role of masonry elastoplastic constitutive models on tunnelling induced damage in buildings. A two-stage analysis method (TSAM) is adopted, incorporating input greenfield displacements, 3D masonry walls, and an elastic mod... Read More about Tunnelling-induced wall damage: an appraisal of elastoplastic constitutive models for the masonry.

Measuring pore sizes of nonwoven geotextiles by X-ray CT images: a comparative evaluation (2024)
Journal Article
Khan, M. W., Dawson, A. R., Marshall, A. M., & Chaudhry, R. (2024). Measuring pore sizes of nonwoven geotextiles by X-ray CT images: a comparative evaluation. Geosynthetics International, https://doi.org/10.1680/jgein.24.00055

This paper focuses on evaluating the pore sizes of four nonwoven geotextile specimens with different pore size distribution techniques. The paper introduces a bubble analysis technique to find the two-dimensional (2D) pore size distribution of geotex... Read More about Measuring pore sizes of nonwoven geotextiles by X-ray CT images: a comparative evaluation.

Load transfer mechanisms for capped and uncapped non-displacement piles above tunnels: a centrifuge modelling study (2024)
Journal Article
Tang, C., Franza, A., Xu, J., & Marshall, A. M. (2024). Load transfer mechanisms for capped and uncapped non-displacement piles above tunnels: a centrifuge modelling study. Géotechnique, https://doi.org/10.1680/jgeot.23.00201

This paper presents results from geotechnical centrifuge tests of tunnelling in dry dense sand beneath loaded non-displacement piles, focusing on the effect of a pile cap (representative also of a raft or grade beam) in contact with the soil surface... Read More about Load transfer mechanisms for capped and uncapped non-displacement piles above tunnels: a centrifuge modelling study.

Effects of embedded walls on tunnelling-induced sandy ground displacements: a numerical investigation (2024)
Journal Article
Xu, J., Zheng, L., Song, G., Zhang, D., Sheil, B., & Marshall, A. M. (2024). Effects of embedded walls on tunnelling-induced sandy ground displacements: a numerical investigation. Géotechnique, https://doi.org/10.1680/jgeot.23.00307

Urban tunnelling projects pose significant risks to the integrity of nearby structures due to ground movements induced by the excavation process. Embedded walls are commonly employed as a protective measure to mitigate these adverse effects. This pap... Read More about Effects of embedded walls on tunnelling-induced sandy ground displacements: a numerical investigation.

Assessing the performance of winged caisson foundations for offshore wind turbines (2023)
Journal Article
Faizi, K., Faramarzi, A., Dirar, S., Chapman, D., Cui, G., Heron, C. M., & Marshall, A. M. (2023). Assessing the performance of winged caisson foundations for offshore wind turbines. Marine Georesources and Geotechnology, https://doi.org/10.1080/1064119x.2023.2179445

The foundation of an offshore wind turbine (OWT) accounts for up to 20% of the total cost; therefore, investigations into reliable and efficient foundations are important for the offshore wind energy industry. This article describes an innovative win... Read More about Assessing the performance of winged caisson foundations for offshore wind turbines.

Numerical study on the effect of protective wall depth in reducing structure deformations caused by tunnelling (2023)
Journal Article
Song, G., Xu, J., & Marshall, A. M. (2023). Numerical study on the effect of protective wall depth in reducing structure deformations caused by tunnelling. Computers and Geotechnics, 158, Article 105374. https://doi.org/10.1016/j.compgeo.2023.105374

To reduce tunnelling induced damage of buildings, a ‘protective wall’ is sometimes constructed between the location of the new tunnel and existing foundations. One of the key design questions relates to the optimal wall depth, where further increase... Read More about Numerical study on the effect of protective wall depth in reducing structure deformations caused by tunnelling.

Closure to “Centrifuge Tests on Rock-Socketed Piles: Effect of Socket Roughness on Shaft Resistance” by J. G. Gutierrez-Ch, G. Song, C. M. Heron, A. Marshall, and R. Jimenez (2022)
Journal Article
Gutierrez-Ch, J. G., Song, G., Heron, C. M., Marshall, A., & Jimenez, R. (2022). Closure to “Centrifuge Tests on Rock-Socketed Piles: Effect of Socket Roughness on Shaft Resistance” by J. G. Gutierrez-Ch, G. Song, C. M. Heron, A. Marshall, and R. Jimenez. Journal of Geotechnical and Geoenvironmental Engineering, 148(7), https://doi.org/10.1061/%28asce%29gt.1943-5606.0002832

Filtration performance of non- woven geotextiles with internally-stable and -unstable soils under dynamic loading (2022)
Journal Article
Khan, M. W., Dawson, A. R., & Marshall, A. M. (2022). Filtration performance of non- woven geotextiles with internally-stable and -unstable soils under dynamic loading. Geotextiles and Geomembranes, 50(2), 293-311. https://doi.org/10.1016/j.geotexmem.2021.11.007

In many applications, geotextiles are subjected to dynamic loading conditions, for example, below roads and railways, for which a Gradient Ratio (GR) test is often used to assess filtration compatibility of soil-geotextile systems. This paper present... Read More about Filtration performance of non- woven geotextiles with internally-stable and -unstable soils under dynamic loading.

Tunnel–piled structure interaction: Numerical simulation of hybrid centrifuge tests (2021)
Journal Article
Song, G., & Marshall, A. M. (2021). Tunnel–piled structure interaction: Numerical simulation of hybrid centrifuge tests. Computers and Geotechnics, 140, Article 104477. https://doi.org/10.1016/j.compgeo.2021.104477

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... Read More about Tunnel–piled structure interaction: Numerical simulation of hybrid centrifuge tests.

Investigation of soil-pile-structure interaction induced by vertical loads and tunnelling (2021)
Journal Article
Franza, A., Zheng, C., Marshall, A. M., & Jimenez, R. (2021). Investigation of soil-pile-structure interaction induced by vertical loads and tunnelling. Computers and Geotechnics, 139, Article 104386. https://doi.org/10.1016/j.compgeo.2021.104386

The response of pile groups and piled structures to vertical and tunnelling-induced loads is studied. A two-stage model is adopted that can efficiently consider external actions, greenfield tunnelling movements, superstructure stiffness, ultimate pil... Read More about Investigation of soil-pile-structure interaction induced by vertical loads and tunnelling.

Centrifuge Tests on Rock-Socketed Piles: Effect of Socket Roughness on Shaft Resistance (2021)
Journal Article
Gutiérrez-Ch, J. G., Song, G., Heron, C. M., Marshall, A., & Jimenez, R. (2021). Centrifuge Tests on Rock-Socketed Piles: Effect of Socket Roughness on Shaft Resistance. Journal of Geotechnical and Geoenvironmental Engineering, 147(11), Article 04021125. https://doi.org/10.1061/%28ASCE%29GT.1943-5606.0002665

Preliminary estimations of shaft resistance of rock-socketed piles are usually conducted using empirical formulations that relate to the uniaxial compressive strength (σc) of the weaker material involved (intact rock or pile). However, there are othe... Read More about Centrifuge Tests on Rock-Socketed Piles: Effect of Socket Roughness on Shaft Resistance.

Tunneling-Induced Deformation of Bare Frame Structures on Sand: Numerical Study of Building Deformations (2021)
Journal Article
Boldini, D., Losacco, N., Franza, A., DeJong, M. J., Xu, J., & Marshall, A. M. (2021). Tunneling-Induced Deformation of Bare Frame Structures on Sand: Numerical Study of Building Deformations. Journal of Geotechnical and Geoenvironmental Engineering, 147(11), Article 0002627. https://doi.org/10.1061/%28asce%29gt.1943-5606.0002627

The paper compares the performance of two Finite Element Method approaches in reproducing the response of bare frame structures to tunneling in dry dense sand. A fully coupled approach, in which the tunnel, frame and soil are accounted for, is comp... Read More about Tunneling-Induced Deformation of Bare Frame Structures on Sand: Numerical Study of Building Deformations.

Role of Footing Embedment on Tunnel–Foundation Interaction (2021)
Journal Article
Xu, J., Franza, A., Marshall, A. M., & Losacco, N. (2021). Role of Footing Embedment on Tunnel–Foundation Interaction. Journal of Geotechnical and Geoenvironmental Engineering, 147(9), Article 06021009. https://doi.org/10.1061/%28asce%29gt.1943-5606.0002603

This technical note investigates the effect of footing embedment depth on tunnel-structure interaction using geotechnical centrifuge testing. A two-story framed building on separate footings, either resting directly on the surface or embedded in the... Read More about Role of Footing Embedment on Tunnel–Foundation Interaction.

Centrifuge study on the use of protective walls to reduce tunnelling-induced damage of buildings (2021)
Journal Article
Song, G., & Marshall, A. M. (2021). Centrifuge study on the use of protective walls to reduce tunnelling-induced damage of buildings. Tunnelling and Underground Space Technology, 115, Article 104064. https://doi.org/10.1016/j.tust.2021.104064

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 adja... Read More about Centrifuge study on the use of protective walls to reduce tunnelling-induced damage of buildings.

Geotechnical Characterization of Fine-Grained Spoil Material from Surface Coal Mines (2021)
Journal Article
Zevgolis, I. E., Theocharis, A. I., Deliveris, A. V., Koukouzas, N. C., Roumpos, C., & Marshall, A. M. (2021). Geotechnical Characterization of Fine-Grained Spoil Material from Surface Coal Mines. Journal of Geotechnical and Geoenvironmental Engineering, 147(7), Article 04021050. https://doi.org/10.1061/%28asce%29gt.1943-5606.0002550

Coal mines produce large amounts of excavated waste soils, known as spoils. These materials can cover vast areas, are typically dumped in heaps without any treatment and are difficult to exploit for engineering purposes because of their significant v... Read More about Geotechnical Characterization of Fine-Grained Spoil Material from Surface Coal Mines.

Cavity expansion-contraction based method for tunnel-soil-pile interaction in a unified clay and sand model: drained analysis (2021)
Journal Article
Mo, P.-Q., Marshall, A. M., & Fang, Y. (2021). Cavity expansion-contraction based method for tunnel-soil-pile interaction in a unified clay and sand model: drained analysis. International Journal of Geomechanics, 21(5), https://doi.org/10.1061/%28ASCE%29GM.1943-5622.0002016

This paper proposes an analytical method based on drained solutions of cavity expansion and contraction in a unified clay and sand model to investigate tunnel-soil-pile interactions. Cavity expansion analyses are used to evaluate the effects of pile... Read More about Cavity expansion-contraction based method for tunnel-soil-pile interaction in a unified clay and sand model: drained analysis.

Tunnel–framed building interaction: comparison between raft and separate footing foundations (2020)
Journal Article
Xu, J., Franza, A., Marshall, A. M., Losacco, N., & Boldini, D. (2021). Tunnel–framed building interaction: comparison between raft and separate footing foundations. Géotechnique, 71(7), 631-644. https://doi.org/10.1680/jgeot.19.P.393

This paper investigates the influence of the foundation configuration (raft or separate footings) on tunnel-soil-framed building interaction using geotechnical centrifuge testing. Tunnelling-induced soil movements and deformation fields, framed build... Read More about Tunnel–framed building interaction: comparison between raft and separate footing foundations.

Centrifuge Study on the Influence of Tunnel Excavation on Piles in Sand (2020)
Journal Article
Song, G., & Marshall, A. M. (2020). Centrifuge Study on the Influence of Tunnel Excavation on Piles in Sand. Journal of Geotechnical and Geoenvironmental Engineering, 146(12), Article 04020129. https://doi.org/10.1061/%28ASCE%29GT.1943-5606.0002401

© 2020 American Society of Civil Engineers. 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... Read More about Centrifuge Study on the Influence of Tunnel Excavation on Piles in Sand.

Response of Framed Buildings on Raft Foundations to Tunneling (2020)
Journal Article
Xu, J., Franza, A., & Marshall, A. M. (2020). Response of Framed Buildings on Raft Foundations to Tunneling. Journal of Geotechnical and Geoenvironmental Engineering, 146(11), Article 04020120. https://doi.org/10.1061/%28asce%29gt.1943-5606.0002376

This paper investigates the response of framed buildings on raft foundations to tunnel construction using geotechnical centrifuge testing. Five framed building models were considered and the influence of building configuration, weight, eccentricity,... Read More about Response of Framed Buildings on Raft Foundations to Tunneling.

Assessment of the Posttunneling Safety Factor of Piles under Drained Soil Conditions (2020)
Journal Article
Marshall, A. M., Franza, A., & Jacobsz, S. W. (2020). Assessment of the Posttunneling Safety Factor of Piles under Drained Soil Conditions. Journal of Geotechnical and Geoenvironmental Engineering, 146(9), Article 04020097. https://doi.org/10.1061/%28ASCE%29GT.1943-5606.0002348

The need to tunnel closely beneath piles is increasing due to the development of urban areas. This poses a risk to the stability and serviceability of overlying structures (e.g., buildings, piers, and piled embankments). The impact of tunneling on pi... Read More about Assessment of the Posttunneling Safety Factor of Piles under Drained Soil Conditions.