LOW-TEMPERATURE LPG AND LNG STORAGE CAVERNS AND RELATED RESEARCH REVIEW OF ROCK MECHANICS
XU Bin1，LI Ning2，LI Zhongkui1，YAN Na3
(1. State Key Laboratory of Hydroscience and Engineering，Tsinghua University，Beijing 100084，China；
2. Institute of Geotechnical Engineering，Xi?an University of Technology，Xi?an，Shaanxi 710048，China；
3. Beijing Geotechnical Institute Engineering Consultants Ltd.，Beijing 100038)
Abstract：Firstly，the construction technology of the low-temperature liquefied petroleum gas(LPG) and low- temperature liquefied natural gas(LNG) underground storage caverns is introduced. The field experiments and theoretical analysis for low-temperature LPG and LNG underground storage caverns engineering are summarized. And the frozen rock mechanics problems related to these engineering are introduced，from the four following reviewed researches：(1) Rock physical properties under low temperature or freeze-thaw cycle；(2) Effect of low-temperature freezing or freeze-thaw cycle on fractures of rock；(3) Moisture migration；(4) The frozen rock mass coupled thermo-hydro-mechanical model under low-temperature freezing condition. Due to the differences of freezing in the laboratory and field conditions，the mechanism of the frozen action to intact rock and rock mass is explored. Moisture migration and temperature filed of frozen rock mass are also considered. The last，the construction technology and stability of LPG and LNG underground storage caverns are discussed.
JOO P J，KWON J S，SHIK C Y. Design of Pyongtaek LPG storage terminal underneath Lake Namyang：a case study[J]. Tunnelling and Underground Space Technology，2005，20(5)：463-478.
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2013, Vol. 32 
