内蒙古电力技术2024，Vol.42Issue(6)：8-13,6.DOI:10.19929/j.cnki.nmgdljs.2024.0074
压气储能电站地下人工洞室上覆岩体抗抬稳定影响因素分析
Analysis of Anti-Lifting Stability of Overlying Rock Mass in Underground Artificial Cavern of Compressed Air Energy Storage Power Stations
摘要
Abstract
In response to the problem that the bearing capacity of surrounding rock is not fully considered when calculating the buried depth in the design of underground artificial caverns for Compressed Air Energy Storage(CAES),with reference to the relevant calculation methods at home and abroad,a calculation method for the burial depth of CAES power station underground artificial caverns is proposed based on the limit equilibrium analysis method,and the limit equilibrium model is established by assuming the failure surface of rock mass under the limit state for mechanical analysis,taking into account the gravity effect of the overlying rock mass and the shearing resistance on the failure surface.On this basis,the effects of rupture angle,lateral pressure coefficient,burial depth,hole diameter and other parameters on the safety factor of anti-lifting are discussed.The results show that the influence of rupture angle on the stability coefficient of anti-lifting is related to the lateral pressure coefficient.When the lateral pressure coefficient is constant,the safety coefficient of anti-lifting increases with the increase of rupture angle.When the rupture angle is constant,the anti-lift safety coefficient increases with the increase of the lateral pressure coefficient.In addition,the anti-lifting safety factor decreases with the increase of the cavity diameter and increases with the increase of the buried depth of the cavity.关键词
压缩空气储能/地下人工洞室/抗抬/埋深/破裂角Key words
compressed air energy storage/underground artificial cavern/anti-lift/buried depth/rupture angle分类
动力与电气工程引用本文复制引用
杨雪雯..压气储能电站地下人工洞室上覆岩体抗抬稳定影响因素分析[J].内蒙古电力技术,2024,42(6):8-13,6.基金项目
中国能源建设集团广东省电力设计研究院有限公司科技项目"高压地下洞室关键技术研究"(EV10321W) （EV10321W）
