高压物理学报2026，Vol.40Issue(2)：89-99,11.DOI:10.11858/gywlxb.20251119
高速侵彻下盐穴储气库动力学响应的数值模拟研究
Numerical Simulation Study of Dynamic Response of Salt Cavern Gas Storage under High-Velocity Penetration
摘要
Abstract
Underground salt cavern gas storage serves as a critical piece of energy infrastructure.Damage from impact events can cause irreparable losses,making it essential to establish key dynamic stability indicators for evaluating salt cavern safety under extreme impact loads.To investigate the dynamic response of salt cavern gas storage under high-velocity penetration,the salt rock material was modeled using the Riedel-Hiermaier-Thoma(RHT)constitutive model,and a finite element model of the gas storage structure was developed in ANSYS/LS-DYNA software to analyze the damage effects of a weapon on the salt cavern structure.Numerical simulations were conducted for three scenarios with different overburden thicknesses,monitoring four key parameters:vertical displacement,vertical stress,effective plastic strain,and shear stress.These simulations revealed the failure mechanisms of the cavern roof and surrounding rock under dynamic impact,as well as the variation patterns of the key stability indicators.The results demonstrate that reducing the overburden thickness intensifies the dynamic response of the surrounding rock and expands plastic deformation zones.Displacements of the roof and surrounding rock exhibited a trend of initial increase followed by a decrease.Salt rock in regions of low vertical stress experienced higher shear stresses,increasing its susceptibility to failure.Furthermore,the surrounding rock accumulated greater plastic strain,indicating heightened sensitivity to penetration-induced disturbances.关键词
侵彻作用/动力学响应/盐穴储气库/稳定性Key words
penetration effect/dynamic response/salt cavern gas storage/stability分类
建筑与水利引用本文复制引用
胡榕榕,范金洋,杨帆,梁五星,姜德义..高速侵彻下盐穴储气库动力学响应的数值模拟研究[J].高压物理学报,2026,40(2):89-99,11.基金项目
重庆市技术创新与应用发展专项重大项目(CSTB2024TIAD-KPX0096) （CSTB2024TIAD-KPX0096）
