摘要
钢衬密封层作为压缩空气储能地下内衬储气库的重要组成,其厚度的选取关系到储气库的运营安全及建设成本。本文通过全析因试验方法研究了密封层厚度、衬砌厚度及储气库内压对储气库围岩变形的影响,并对其参数敏感性进行了分析。结果表明,围岩变形随着钢衬和衬砌厚度的增大而减小,随着储气库内压的增大而增大,且钢衬厚度存在最优设计取值,与储气库内压呈正比。敏感性分析结果表明,影响储气库围岩变形的3个因素敏感性依次为:内压、衬砌厚度和密封层厚度;影响钢衬密封层Mises应力的3个因素敏感性依次为:内压、密封层厚度和衬砌厚度。研究成果对压缩空气储能地下内衬储气库的设计参数选取具有参考价值。
The steel-lined sealing layer,as a critical component of compressed air energy storage(CAES)underground lined gas reservoirs,requires careful thickness selection to ensure operational safety and construction costeffectiveness.This paper investigates the influences of sealing layer thickness,lining thickness,and gas reservoir pressure on surrounding rock deformation through full factorial experimental methodology,accompanied by parameter sensitivity analysis.Results demonstrate that surrounding rock deformation decreases with increasing steel lining thickness and concrete lining thickness,while increasing proportionally with gas reservoir pressure.An optimal design value exists for steel lining thickness,showing a positive correlation with reservoir pressure.Sensitivity analysis reveals that the three influencing factors on surrounding rock deformation are prioritized as:internal pressure>lining thickness>sealing layer thickness.For Mises stress in the steel-lined sealing layer,the sensitivity ranking follows:internal pressure>sealing layer thickness>lining thickness.These findings provide valuable references for parameter selection in the design of CAES underground lined gas storage.The research results have reference value for the selection of design parameters for underground lined compressed air energy storage facilities.
作者
马学通
安文彤
MA Xuetong;AN Wentong(Northwest Electric Power Design Institute Co.,Ltd.of China Power Engineering Consulting Group,Xi'an 710075,China)
出处
《电力勘测设计》
2025年第8期104-112,共9页
Electric Power Survey & Design
基金
中国电力工程顾问集团西北电力设计院有限公司科技项目“人工硐室储气库设计实用技术研究”(NW-RD034-2023)
“压缩空气储能电站人工硐室储气库密封结构设计技术”(NW-RD001-2024)。
关键词
压缩空气储能
围岩变形
钢衬密封层
compressed air energy storage
rock deformation
steel lining sealing layer
