大罐式储气洞室围岩稳定性分析  

Stability analysis of surrounding rock in large tank gas storage cave

作　　者：任泽栋 REN Zedong(China Renewable Energy Engineering Institute,Bejing 100120,China)

机构地区：[1]水电水利规划设计总院有限公司,北京100120

出　　处：《水利水电快报》2025年第2期57-60,共4页Express Water Resources & Hydropower Information

摘　　要：为了探究压缩空气储能电站中大罐式储气洞室埋深和储气压力变化对围岩稳定性的影响,以山东兰陵压缩空气储能电站为例,对大罐式地下储气库在不同埋深和储气压力下围岩的塑性区范围及位移情况作了计算分析。结果表明:随着埋深H的增大,洞室围岩的塑性区范围逐渐减小,趋于收敛,埋深的变化对洞室围岩的位移影响较小,可忽略不计;随着储气压力P的增大,洞室围岩的位移和塑性区范围均呈线性增大,储气压力的变化对变形的影响较大。工程实践中应主要考虑储气压力对储气结构及围岩变形的影响,埋深对结构和围岩的敏感性相对较低,设计时选择一个合理值即可。研究成果可为后续项目选址及设计提供参考。To investigate the impact of changes in the burial depth and gas storage pressure of the large tank gas storage chamber on the surrounding rock in a compressed air energy storage power station, we conducted calculations and analyses of the plastic zone range and displacement of the surrounding rock for the large tank underground gas storage reservoir in Lanling, Shandong under different burial depths and gas storage pressures.The results showed that as the burial depth H increased, the plastic zone volume of the surrounding rock of the tunnel gradually decreased and tended to converge.The change in burial depth had a little effect on the displacement of the surrounding rock of the tunnel and could be ignored.With the increase of storage pressure P,the displacement and plastic zone volume of the surrounding rock of the tunnel increased linearly, and the change in storage pressure had a significant impact on the deformation of the model.In engineering practice, the main consideration should be the influence of internal pressure on the deformation of gas storage structures and surrounding rocks.The sensitivity of burial depth to the structure and surrounding rocks was relatively low, and a reasonable value could be selected during design.The research result can provide a reference for subsequent project site selection and engineering practice.

关 键 词：压缩空气储能 大罐式储气洞室 围岩稳定性 储气压力 数值模拟 

分 类 号：TU457[建筑科学—岩土工程]