Semianalytical Solution to Near-Field Temperature in Nuclear Waste Repository

Evolution of Physical and Mechanical Properties of Granite after Thermal Treatment under Cyclic Uniaxial Compression

“…The impact of high temperature on rock mass cannot be disregarded in various deep rock underground engineering applications such as deep mining, high-temperature nuclear waste storage, shale gas exploration, enhanced geothermal system (EGS) development, and deep oil drilling [2][3][4][5][6][7]. Furthermore, the deep surrounding rock often exhibits complex mechanical behavior and may even lead to geological disasters such as rock bursts, tunnel water inrushes, shaft instabilities, and earthquakes due to disturbances caused by engineering loads like blasting vibration and mechanical excavation [8][9][10][11][12][13][14][15][16]. Therefore, ensuring the safety and stability of deep underground resource development and maximizing the utilization of deep underground space have become significant topics in the field of rock mechanics [17].…”

UO2 dissolution in bicarbonate solution with H2O2: the effect of temperature

“…Recent studies have shown that the temperature at the waste canister surface may be ∼20-30 °C aer 10 000 years of storage. 32,33 Therefore, depending on the storage conditions and the time of storage container failure, temperatures in the repository will vary. Studies on the temperature effect on spent fuel dissolution under repository conditions have shown that an increase in temperature reduces dissolution under a H 2 atmosphere due to increased uranyl reduction, 34 whilst dissolution increases with temperature in O 2 atmospheres.…”