安全与环境工程2025，Vol.32Issue(4)：57-69,13.DOI:10.13578/j.cnki.issn.1671-1556.20250062
隧道交通荷载对储气库盖层完整性的影响
Effects of tunnel traffic loads on the integrity of gas storage reservoir caprock
摘要
Abstract
Tunnel-induced vibrations can exert a non-negligible impact on the safety of overlying strata in underground gas storage(UGS)reservoir.To investigate the effects of stress wave propagation from traffic loads on the integrity of caprock above UGS,a finite element numerical simulation was conducted based on the Huangcaoxia gas storage reservoir.The deformation and particle velocity responses of the overburden were analyzed under different traffic loads:passenger and freight trains on the Chongqing-Lichuan Railway,high-speed trains on the Shanghai-Chongqing-Chengdu Railway,and heavy trucks on the Huangcaoshan Expressway.The results are as follows:① During tunnel operation,both deformation and vibration velocity of the overburden remain within safe limits;② Deformation decrease with increasing distance from the tunnel,with T2l and T1j44 being more significantly affected,while T1j23 shows minimal deformation,indicating a significant regulatory effect of lithology and stratigraphic structure on the geomechanical response;③ Under the combined influence of multiple traffic scenarios,the impact is mainly confined to T1j44 beneath the tunnel and poses no threat to the integrity of the caprock.These findings provide theoretical support and practical guidance for evaluating the integrity of overburden strata under complex traffic-induced dynamic loads in UGS systems.关键词
黄草峡储气库/盖层完整性/隧道交通荷载/地层变形/振动速率Key words
Huangcaoxia gas storage reservoir/overburden integrity/tunnel traffic load/stratum deformation/vibration velocity分类
资源环境引用本文复制引用
雷宝泽,王时林,苏培东,邱鹏,陆星好,欧阳沐鲲..隧道交通荷载对储气库盖层完整性的影响[J].安全与环境工程,2025,32(4):57-69,13.基金项目
重庆天然气储运有限公司科研项目(XNS重庆储运JS2024-03) （XNS重庆储运JS2024-03）
