工程地质学报2012，Vol.20Issue(5)：789-795,7.
基于COMSOL的地下水封油库围岩流固耦合特征模拟研究
NUMERICAL SSIMULATION FOR FLUID-SOLID COUPLING CHARATERISTICS IN SURROUNDING ROCK OF UNDERGROUND WATER-SEALED OIL STORAGE BASED
摘要
Abstract
Underground water-sealed oil storage is usually built in integral crystalline rock masses. Based on the theory of water sealing, oil is stored in underground cavern. In the surrounding rock, typical fluid-solid coupling characteristics exist in the process of construction and running. Based on flow-solid coupling theory of fractured rock mass, COMSOL Multiphysics software is used to simulate the fluid-structure interaction of surrounding rock under different working conditions. Research results show the follows. Without setting water curtains the underground water level at top of the cavern decreases obviously and forms the funnel, which could lead the spill of oil and gas. After the water curtains are set, the fall trend of water level is effectively controlled and the sealing of cavern is ensured. With setting water curtains, obvious stress concentration appears in straight wall, vault and the corner points of floor. But the plastic zone still does not appear in surrounding rock. The maximum displacement of cavern does not exceed lmm. Besides, the stability of surrounding rock is good. The results can serve as references to the design and construction of underground engineering.关键词
地下水封油库/流固耦合/COMSOL Mutiphysics软件/渗流场/应力场Key words
Underground water-sealed oil storage, Fluid-solid coupling, COMSOL Multiphysics software, Seepage field, Stress field分类
建筑与水利引用本文复制引用
张彬,李卫明,封帆,吴兵,曹小亮..基于COMSOL的地下水封油库围岩流固耦合特征模拟研究[J].工程地质学报,2012,20(5):789-795,7.基金项目
国家自然科学基金项目(40902086),水利部岩土力学工程重点实验室开放基金项目(G07-08)和中央高校基本科研业务经费项目(2010ZY14)资助. （40902086）
