Coupled thermal-hydrological-mechanical behavior of rock mass surrounding a high-temperature thermal energy storage cavern at shallow depth
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- 作者：Jung-Wook Parka ; jwpark@kigam.re.kr" class="auth_mail" title="E-mail the corresponding author ; Jonny Rutqvistb ; Dongwoo Ryua ; Eui-Seob Parka ; Joong-Ho Synna
- 关键词：Thermal-hydrological-mechanical coupled analysis ; Thermal energy storage ; Rock cavern ; TOUGH-FLAC simulator
- 刊名：International Journal of Rock Mechanics and Mining Sciences
- 出版年：2016
- 出版时间：March 2016
- 年：2016
- 卷：83
- 期：Complete
- 页码：149-161
- 全文大小：5347 K
文摘
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We simulate the operation of rock cavern for thermal energy storage for 30 years.
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Coupled thermal-hydrological-mechanical processes within the rock mass are presented.
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Evaporation and multiphase flow showed a minor effect on mechanical stability.
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Thermal expansion led to a ground surface uplift and tensile stress development.
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Tangential stress near the cavern can cause some shear failure and local damage.