西北水电Issue(2)：44-51,8.DOI:10.3969/j.issn.1006-2610.2024.02.008
新疆阜康抽水蓄能电站含泥夹层变形体稳定性分析
Stability Analysis of Mud Interlayer Deformation Body of Xinjiang Fukang Pumped Storage Power Station
摘要
Abstract
The muddy interlayers at the bottom of the deformation body of the upper reservoir of Fukang Pumped Storage Power Station in Xinjiang are relatively developed,which seriously threatens the stable operation of the project.Based on the finite element analysis of the deformation body and the monitoring data of surface displacement and inclined hole displacement,the instability failure characteristics of the deformation body and the temporal and spatial variation law of displacement are studied.The results show that the deformation body is in a stable state under natural conditions.Under the action of the pressure slope,the overall safety factor of the slope increases from 1.33 to 1.51,and the safety factor increases by 13.5%compared with the natural state.The stability of the deformed body is obviously im-proved after the pressure slope treatment,but the strength parameters of the mud interlayer have a great influence on the stability of the deformed body.The strength parameters of the mud interlayer are reduced by 40%,and the overall safety factor of the deformed body is less than 1.0.The maximum cumulative horizontal displacement of each surface deformation measuring point of the deformable body is 8.56 mm,and the maximum cumulative vertical displacement is 10.03 mm.The maximum average displacement of the upstream and downstream of the measuring hole and the left and right banks does not exceed 0.6 mm.The deformation of the deformed body is mainly manifested as creep deformation along the mud interlayer.Systematic deformation monitoring should be carried out on different parts of the deformed body during construction,reservoir impoundment and operation.关键词
边坡稳定/变形监测/失稳模式/有限元分析/阜康抽水蓄能电站Key words
slope stability analysis/deformation monitoring/failure mode/finite element analysis/Fukang Pumped Storage Power Station分类
建筑与水利引用本文复制引用
黎康平,赵庆,白兴平,张振国,侯回位..新疆阜康抽水蓄能电站含泥夹层变形体稳定性分析[J].西北水电,2024,(2):44-51,8.基金项目
陕西省自然科学基础研究计划(2024JC-YBQN-0473). （2024JC-YBQN-0473）
