Temperature has critical influences on rock strength. It is almost universally acknowledged
from laboratory studies that rocks are weakened at elevated temperatures, as a result of the …

Understanding the mechanical responses of granites after various thermal shocks is of
utmost significance for heat extraction through from enhanced geothermal systems (EGSs) …

The effect of high temperatures up to 800° C on the physical and mechanical characteristics
and fracturing behaviour of Beishan granite is experimentally studied with a combination of …

During the development of hot dry rock, the research on thermal fatigue damage caused by
thermal shock of cold and heat cycles is the basis that ensures the long-term utilization of …

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 …

We conducted research on the influence of periodic thermal loading on the shear behavior
of sandstone through a series of direct shear tests with the aid of acoustic emission …

The history of reservoir stimulation to extract geothermal energy from low permeability rock
(ie so-called petrothermal or engineered geothermal systems, EGS) highlights the difficulty …

During drilling, reservoir fracturing and hot dry rock development, high-temperature rock is
subjected to cyclic water cooling. The mechanical properties and microscopic characteristics …

Hydraulic fracturing is typically required before shale gas production. Residual fracturing
fluid in the reservoir leads to a hydration reaction and weakens the fracturing effect. To …

The irreversible deterioration of bearing rocks via the thermal effect is a severe challenge
faced by underground engineering. A comprehensive understanding of the fracture behavior …