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天荒坪抽水蓄能电站地下厂房围岩支护设计 被引量:2

Design of surrounding rock support of underground power house of Tianhuangping Pumped storage Power Station
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摘要 天荒坪抽水蓄能电站地下厂房洞室群埋深200m,厂房纵轴线方位N30°W,主厂房与主变洞、尾水事故闸门洞依次平行排列,净间距分别为33.5m和78.4m。目前地下洞室群开挖支护完毕,通过实际施工期围岩原位监测,说明非线性平面有限元及三维弹塑性有限元分析成果对设计起了指导作用,结合非线性有限元分析,及时修正支护措施,确保了围岩稳定和结构安全。 The embedded depth of the chamber group for underground power house of Tianhuangping Pumped storage Power Station is 200 m The longitudinal axis of power house is in the direction of N30°W The main power house is parallel to main transformer chamber and emergency tailwater gate chamber with the net space distance of 33 5 m and 78 4 m respectively At present, the excavation and support of the underground chamber group have been completed The observation of the original surrounding rock during the construction period shows that the results from non linear plane finite element analysis and three dimensional elastic plastic finite element analysis have played a guide role in the design of the project In combination with the non linear finite element analysis to correct the support measures in time, the stability of surrounding rock and the safety of structures have been guaranteed
作者 杨小珑 孔勇
出处 《水力发电》 EI 北大核心 1998年第8期32-34,共3页 Water Power
关键词 地下厂房 围岩 支护 围岩稳定性 抽水蓄能电站 underground power house, surrounding rock analysis, finite element analysis, geological parameter, support parameter, monitoring, surrounding rock stability, Tianhuangping Pumped storage Power Station
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