低温液化石油气和液化天然气储库及相关岩石力学研究进展  

LOW-TEMPERATURE LPG AND LNG STORAGE CAVERNS AND RELATED RESEARCH REVIEW OF ROCK MECHANICS

作　　者：徐彬[1] 李宁[2] 李仲奎[1] 闫娜[3] 

机构地区：[1]清华大学水沙科学与水利水电工程国家重点实验室,北京100084 [2]西安理工大学岩土工程研究所,陕西西安710048 [3]北京市勘察设计研究院有限公司,北京100038

出　　处：《岩石力学与工程学报》2013年第S2期2977-2993,共17页Chinese Journal of Rock Mechanics and Engineering

基　　金：中国博士后科学基金项目(20100480324)

摘　　要：首先介绍低温液化石油气(LPG)和低温液化天然气(LNG)地下储库的建库技术,对目前低温LPG和低温LNG地下储库工程的现场试验和理论分析两方面进行总结;从中引出相关的冻岩力学问题,从4个方面综述目前研究现状:(1)岩石在低温下或冻融循环下的物理性状研究;(2)低温冻结或冻融循环对裂隙的作用研究;(3)水分迁移研究;(4)低温冻结岩体中三场耦合研究。由于实验室岩块和现场岩体的差异,探讨冰冻作用对岩块和岩体的差异及作用机制,对水分迁移及冻结岩体中温度场研究进行思考,最后对LPG,LNG地下储库工程的建设及稳定进行讨论。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.

关 键 词：岩石力学 低温LPG/LNG地下储库 冻结 裂隙 水分迁移 

分 类 号：TU452[建筑科学—岩土工程]