摘要
国内许多盐穴难以满足压缩空气储能电站的改造要求,新建盐穴成为未来压缩空气储能电站储气库的重点目标。以安徽省某拟开采浅埋盐矿作为实例,建立水溶开采后盐腔计算模型。基于该矿区具有浅埋深与大倾角的地质特点,分析盐层倾角和埋深对盐腔变形和体积收缩的影响规律。研究结果表明:盐层倾角为20°时,盐腔的稳定性较差,矿区拟建盐腔埋深达到500 m后,腔体蠕变5 a后体积收缩超过安全限值。
Many salt caverns in China are difficult to meet the renovation requirements of compressed air energy storage power station,and building new salt caverns has become a key goal for future compressed air energy storage power station gas storage facilities.This article takes a shallow buried salt mine in Anhui province as an example to establish a calculation model for the salt cavity after water solution mining.Based on the geological characteristics of shallow burial depth and large dip angle in the mining area,the influence of salt layer dip angle and burial depth on salt cavity deformation and volume shrinkage is analyzed.The research results show that the stability of the salt cavity is poor when the dip angle of the salt layer is 20°,and the volume shrinkage of the cavity exceeds the safety limit after 5 years of creep in the cavity after the burial depth of the proposed salt cavity in the mine area reaches 500 meters.
作者
虞海兵
纪文栋
侯景峥
商浩亮
万继方
马洪岭
YU Haibing;JI Wendong;HOU Jingzheng;SHANG Haoliang;WAN Jifang;MA Hongling(China Energy Digital Technology Group Co.,Ltd.,Beijing 100044,China;Wuhan Institute of Geotechnical Mechanics of Chinese Academy of Sciences,Wuhan 430071,China)
出处
《电力勘测设计》
2024年第3期69-75,共7页
Electric Power Survey & Design
基金
中国能源建设股份有限公司重大科技项目“300 MW级压缩空气储能电站关键技术和装备研究”(CEEC2021-KJZX-04)
湖北省重点研发计划“300 MW级压缩空气储能系统、工程示范及运维成套技术研究”(2022BAD163)。
关键词
压缩空气储能电站
浅埋盐穴
盐层倾角
埋深
稳定性
compressed air energy storage station
shallow buried salt cavity
salt layer dip angle
burial depth
stability
