圆形截面隧道式储气库群布局参数研究  

Study on Layout Parameters of Circular Section Tunnel Gas Storage

作　　者：周小松 闫磊 黄康康 孙高博 刘卫 Zhou Xiaosong;Yan Lei;Huang Kangkang;Sun Gaobo;Liu Wei(China Jikan Research Institute of Engineering Investigations and Design,Co.,Ltd,Xi'an 710043,P.R.China)

机构地区：[1]机械工业勘察设计研究院有限公司,西安710043

出　　处：《地下空间与工程学报》2024年第S01期205-212,共8页Chinese Journal of Underground Space and Engineering

基　　金：陕西省秦创原"科学家+工程师"队伍建设基金(2022KXJ-024)。

摘　　要：内衬式硬岩储气库因其相较于盐穴、废弃矿洞等储气库,具有不受特殊地理条件限制且能承受更高压力等优点,是当前最有前景的储能方式。随着大规模的压气储能电站的出现,单一储气库势必无法满足储能所需,因此对储气库群的研究具有现实意义。本文建立3个平行的圆形截面隧道式储气库群三维模型,研究了埋深、洞径、间距3个影响因素对围岩变形和塑性区的影响规律,提出圆形隧道式储气库群布局建议。结果表明:三者对储气库群稳定性的影响程度从大到小依次为:埋深、洞径、间距;埋深越大,围岩变形越小;随着洞径的增加,围岩变形整体上呈增大趋势;随着间距的增大,围岩变形趋于稳定。运行压力为10 MPa时,圆形截面隧道式储气库群的最优布局参数:埋深为300 m、洞径为15 m、间距为0.5 D。The lined hard rock gas storage is the most promising energy storage mode at present because it is not limited by special geographical conditions and withstand higher pressure compared with salt caverns,abandoned mines and other gas storage.With the emergence of large-scale pressurized gas energy storage power stations,a single gas storage bank is bound to not meet the needs of energy storage,so the research of gas storage group is of practical significance.Three parallel 3D models of circular section tunnel gas storage group were established by MIDAS,which study the influence rules of three influencing factors on burial depth,tunnel diameter and spacing on the plastic area and deformation,and put forward the layout of circular tunnel gas storage group.The results show that the influence on the stability of the gas storage group is changed from large to small in order:burial depth,hole diameter and spacing.The buried depth is larger,the surrounding rock deformation is smaller;with the increase of the hole diameter,the surrounding rock deformation shows an increase trend;and with the increase of the spacing,the surrounding rock deformation tends to be stable.When the operating pressure is 10 MPa,the optimal distribution parameters of the circular section tunnel gas storage group:buried depth 300 m,hole diameter 15 m,and spacing 0.5 D.

关 键 词：压气储能 储气库群 布局参数 

分 类 号：TK02[动力工程及工程热物理]