Abstract The utilization of Underground Pumped Storage Power Systems (UPSP) addresses
the growing need for energy storage in the face of increasing intermittent energy sources …

Formation damage has become a major obstacle to the efficient drilling and economic
development for tight carbonate reservoirs with multiscale pore system and plenty of …

Creep tests were carried out on Inada granite under confining pressure and on dry and wet
specimens of Kamisunagawa sandstone. Distinctive points QA (the point where the axial …

Time-dependent rock deformation caused by the initiation and growth of fractures leads to
the weakening of the rock mass. Understanding the fracturing mechanisms involved in the …

The long-term strength and time-to-failure of brittle rocks has become increasingly important
with the increased interest in the storage of used nuclear fuel in deep geological …

A 2-D numerical model for brittle creep and stress relaxation is proposed for the time-
dependent brittle deformation of heterogeneous brittle rock under uniaxial loading …

In deep underground excavation, rock mass response may be classified as time-
independent or time-dependent and the material (whether it is intact or fractured) may …

Coal permeability changes during the course of gas drainage process due to the change in
pore pressure, porosity, and desorption. Understanding of coal permeability behaviour …

Underground openings can experience time-dependent deformations and stress changes.
Studying time-dependent rock behaviour is commonly done with static load (creep) tests in …

In underground tunnels, caverns or pillar goaf, the time-dependent deformation or failure of
the rock or coal mass is a major safety concern, which affects the mechanical properties and …