The mechanical behaviour and failure modes of volcanic rocks: a review

MJ Heap, MES Violay - Bulletin of Volcanology, 2021 - Springer
The microstructure and mineralogy of volcanic rocks is varied and complex, and their
mechanical behaviour is similarly varied and complex. This review summarises recent …

A comprehensive review on mechanical responses of granite in enhanced geothermal systems (EGSs)

Z Zhu, S Yang, PG Ranjith, W Tian, H Tian… - Journal of Cleaner …, 2023 - Elsevier
Understanding the mechanical responses of granites after various thermal shocks is of
utmost significance for heat extraction through from enhanced geothermal systems (EGSs) …

Influence of different thermal cycling treatments on the physical, mechanical and transport properties of granite

P **, Y Hu, J Shao, G Zhao, X Zhu, C Li - Geothermics, 2019 - Elsevier
Two different types of thermal cycling treatments (slow heating followed by slow cooling or
rapid quenching) were carried out on the granite samples in the present research. The …

Mechanical behaviour of Australian Strathbogie granite under in-situ stress and temperature conditions: An application to geothermal energy extraction

WGP Kumari, PG Ranjith, MSA Perera, S Shao… - Geothermics, 2017 - Elsevier
Geothermal heat has now been identified as an effective renewable energy source due to
severe environmental impacts created by conventional fossil usage on global climatic …

Experimental evaluation of physical and mechanical properties of geothermal reservoir rock after different cooling treatments

S Sha, G Rong, Z Chen, B Li, Z Zhang - Rock Mechanics and Rock …, 2020 - Springer
A comprehensive understanding of the physico-mechanical behavior of rocks in hot dry rock
(HDR) reservoir after different stimulation treatments is essential for the safe and effective …

Experimental investigation on physical and mechanical properties of granite subjected to cyclic heating and liquid nitrogen cooling

G Rong, S Sha, B Li, Z Chen, Z Zhang - Rock Mechanics and Rock …, 2021 - Springer
Cyclic liquid nitrogen (LN 2) fracturing is an innovative technology for reservoir stimulation
with great potential in geothermal energy exploitation. Understanding of the mechanical …

Changes in thermomechanical properties due to air and water cooling of hot dry granite rocks under unconfined compression

Z Zhu, T Kempka, PG Ranjith, H Tian, G Jiang, B Dou… - Renewable Energy, 2021 - Elsevier
Water has been used as a working fluid injected into the hot reservoirs during the
exploitation of deep geothermal energy, therefore, understanding the thermomechanical …

Quantifying the role of hydrothermal alteration in creating geothermal and epithermal mineral resources: The Ohakuri ignimbrite (Taupō Volcanic Zone, New Zealand)

MJ Heap, DM Gravley, BM Kennedy, HA Gilg… - Journal of Volcanology …, 2020 - Elsevier
Hydrothermal fluids can alter the chemical and physical properties of the materials through
which they pass and can therefore modify the efficiency of fluid circulation. The role of …

Relationships between P-wave velocity and mechanical properties of granite after exposure to different cyclic heating and water cooling treatments

Z Zhu, PG Ranjith, H Tian, G Jiang, B Dou, G Mei - Renewable Energy, 2021 - Elsevier
The bedrocks of deep geothermal reservoirs are exposed to cyclic water cooling during the
exploitation of deep geothermal energy. Therefore, it is important to understand the physico …

Characterizing lithological, weathering, and hydrothermal alteration influences on volcanic rock properties via spectroscopy and laboratory testing: a case study of …

LN Schaefer, G Kereszturi, BM Kennedy… - Bulletin of …, 2023 - Springer
The geomechanical characterization of volcanic material has important implications for
geothermal and mineral exploration, engineering design, geophysical signals of volcano …