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Keywords: cavern
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Proceedings Papers

Paper presented at the 15th ISRM Congress, October 9–14, 2023
Paper Number: ISRM-15CONGRESS-2023-214
.... Andeka active fault in the north of the dam site is a major structure that affected the dam site geology. Recent monitoring data indicated that powerhouse and transformers caverns suffer severe high stresses on their roofs due to swelling of a claystone layer atop the caverns. Excessive rock mass...
Proceedings Papers

Paper presented at the 15th ISRM Congress, October 9–14, 2023
Paper Number: ISRM-15CONGRESS-2023-459
... ABSTRACT: Underground salt cavern storage is recognised as one of the most suitable technologies to meet the challenges of the new European energy system. With the advantage of being mostly impermeable to gases, salt caverns are currently the only structures used to store hydrogen on a massive...
Proceedings Papers

Paper presented at the 15th ISRM Congress, October 9–14, 2023
Paper Number: ISRM-15CONGRESS-2023-460
... ABSTRACT: Compressed hydrogen is classically stored in steel overground tanks. Large underground storages of compressed hydrogen are extremely few whereas the challenge today is storing liquified hydrogen at very low temperature (cryogenic). Salt caverns are used for storing compressed...
Proceedings Papers

Paper presented at the 15th ISRM Congress, October 9–14, 2023
Paper Number: ISRM-15CONGRESS-2023-461
... ABSTRACT: The stability and integrity of salt caverns are critical for ensuring their safety and long-term viability, especially when used for storing hydrogen on large scales. This study is aimed at understanding the failure mechanisms of rock salt under coupled thermo-mechanical stress...
Proceedings Papers

Paper presented at the 15th ISRM Congress, October 9–14, 2023
Paper Number: ISRM-15CONGRESS-2023-462
... ABSTRACT: The storage of large quantities of energy sources (e. g. natural gas or hydrogen) in rock salt caverns has regained particular importance in today's world. Therefore, the geomechanical design of caverns in rock salt formations is necessary to ensure a safe but also economic operation...
Proceedings Papers

Paper presented at the 15th ISRM Congress, October 9–14, 2023
Paper Number: ISRM-15CONGRESS-2023-013
... ABSTRACT: The powerhouse cavern excavation for Tanahu Hydropower Project (140MW), in Nepal, was successfully completed in July 2022. The site is geologically located in the Lesser Himalayan Zone. During cavern excavation, moderately to highly foliated Slate with phyllitic Slate intercalations...
Proceedings Papers

Paper presented at the 15th ISRM Congress, October 9–14, 2023
Paper Number: ISRM-15CONGRESS-2023-009
... double-track running tunnels, three mined underground stations (Bar Ilan, Yehezkel and Strauss) including ventilation and emergency escape shafts, a large-span bifurcation cavern at the junction with the branch tunnel and three portal structures (north, south, branch). structural geology upstream...
Proceedings Papers

Paper presented at the 15th ISRM Congress, October 9–14, 2023
Paper Number: ISRM-15CONGRESS-2023-463
... ABSTRACT: The conversion of existing natural gas storage caverns for hydrogen storage requires the assessment of the mechanical integrity of the wellbore. The additional impact on the wellbore induced by cavern convergence due to long-term operation must be particularly considered. Numerical...
Proceedings Papers

Paper presented at the 15th ISRM Congress, October 9–14, 2023
Paper Number: ISRM-15CONGRESS-2023-008
... ABSTRACT: The design and the construction of underground caverns with low overburden in an urban environment is a sophisticated task. The project of an urban parking garage, which is built within a large span cavern construction is presented. Due to its low overburden, combined...
Proceedings Papers

Paper presented at the 15th ISRM Congress, October 9–14, 2023
Paper Number: ISRM-15CONGRESS-2023-465
... to build the compressed air energy storage (CAES) power plant, due to its small porosity, low permeability, high plasticity, self-healing characteristics (Li et al., 2023; Schlichtenmayer & Klafki, 2016). And underground salt cavern gas storages have been extensively used at home and abroad (Fan et al...
Proceedings Papers

Paper presented at the 15th ISRM Congress, October 9–14, 2023
Paper Number: ISRM-15CONGRESS-2023-458
... cavern was numerically simulated using COMSOL with the aim to determine the energy losses and the temperature change at the ground surface. The results showed that the energy losses can be reduced considerably by >70% compared to insulated steel tank storages and that the surface temperatures...
Proceedings Papers

Paper presented at the 15th ISRM Congress, October 9–14, 2023
Paper Number: ISRM-15CONGRESS-2023-016
.... This manuscript deals with the stability situation of the underground settling basin caverns of Super Dordi Hydropower Project (SDHP) in Lamjung district of Nepal which is located at the lower boundary of the Higher Himalayan rock formation. The two parallel underground settling basins are 120m long and have...
Proceedings Papers

Paper presented at the 15th ISRM Congress, October 9–14, 2023
Paper Number: ISRM-15CONGRESS-2023-050
... ABSTRACT: Based on the underground cavern engineering of the left bank of Shuangjiangkou hydropower station, Octree theory is used to define the indexes of the MS spatial aggregation degree and the deviation values of MS frequency and energy, establishes the relationship with surrounding rock...
Proceedings Papers

Paper presented at the 15th ISRM Congress, October 9–14, 2023
Paper Number: ISRM-15CONGRESS-2023-114
... ABSTRACT: Metro stations are complex underground infrastructure encompassing wide-span caverns. Their interactions with tunnels, adits, and utilities in vicinity can have impacts on ground stability. This paper aims to undertake a novel approach leveraging digitalization of design and 3D...
Proceedings Papers

Paper presented at the 15th ISRM Congress, October 9–14, 2023
Paper Number: ISRM-15CONGRESS-2023-157
... sedimentary rock limestone tunnel flooding tunnel construction geologist rock type limestone geology excavation tunnel excavation carbonate rock reservoir characterization countermeasure investigation tunnel pavement pipe rainwater incident geology cavern pavement...
Proceedings Papers

Paper presented at the 15th ISRM Congress, October 9–14, 2023
Paper Number: ISRM-15CONGRESS-2023-199
... compressive strength display better resistance against excavation-induced stress and deformation. Notably, the station walls are more stable when station long axis aligns with the major horizontal stress σ H , but it is expected to be less favorable for station end-wall and tunnels connecting caverns...
Proceedings Papers

Paper presented at the 15th ISRM Congress, October 9–14, 2023
Paper Number: ISRM-15CONGRESS-2023-195
... ABSTRACT: The Pumped Storage Scheme Kühtai 2 located between the existing reservoir Finstertal and the currently under construction reservoir Kühtai is part of the expansion of the existing hydro power plant group Sellrain-Silz. The new power station is housed in a cavern at an altitude...
Proceedings Papers

Paper presented at the 14th ISRM Congress, September 13–18, 2019
Paper Number: ISRM-14CONGRESS-2019-016
... rainfall variation tuff monitoring reservoir geomechanics turkey duc storage reservoir characterization ulusay 2013 humidity cappadocian tuff aucc aydan zoam cavern derinkuyu underground city long-time monitoring Rock Mechanics for Natural Resources and Infrastructure Development...
Proceedings Papers

Paper presented at the 14th ISRM Congress, September 13–18, 2019
Paper Number: ISRM-14CONGRESS-2019-152
... Abstract Monitoring plays major role in every stage of the project from exploration, construction and operation of the underground cavern. Large cavern in Bhutan Himalayas is being monitored with geotechnical instruments since the construction period. The behavior of the cavern is being...

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