地下厂房急曲线小断面螺旋上升TBM排水廊道优化布置  

Optimization Layout of a Spirally Rising TBM Drainage Tunnel with Sharp Curve and Small Section for Underground Powerhouse

作　　者：徐旭 辛继勇 童恩飞 XU Xu;XIN Jiyong;TONG Enfei(Powerchina Zhongnan Engineering Corporation,Changsha 410014,China;Hunan Province Key Laboratory of Key Technology on Hydropower Development,Changsha 410014,China)

机构地区：[1]中国电建集团中南勘测设计研究院有限公司,湖南长沙410014 [2]水能资源利用关键技术湖南省重点实验室,湖南长沙410014

出　　处：《水电与新能源》2025年第4期17-20,共4页Hydropower and New Energy

摘　　要：平江抽水蓄能电站地下厂房洞室群规模巨大,洞室空间关系复杂,TBM排水廊道线路具有螺旋式上升、小半径急转弯、陡坡等特点。根据地下厂房排水廊道空间布置、功能需求和TBM设备技术参数,利用MicroStation V8i三维设计软件对地下厂房洞室群及TBM排水廊道进行三维建模,确定了排水廊道TBM掘进线路布置方案,优化了排水廊道TBM断面尺寸及断面设计支护参数。目前排水廊道已全线贯通,排水廊道洞室围岩稳定。The underground powerhouse cavern group in Pingjiang Pumped Storage Power Station is of huge scales and complex spatial relationships.Specifically,the TBM drainage tunnel is of characteristics such as spirally rising,sharp turns with small radius,and deep slope.According to the spatial layout and functional requirements of the drainage tunnel,and technical parameters of the TBM equipment,three-dimensional models of the underground powerhouse carven group and the TBM drainage tunnel are constructed with MicroStation V8i software.The TBM excavation routing scheme of the drainage tunnel is determined.The sectional dimensions and support design parameters of the tunnel are optimized.At present,the excavation construction work of the drainage tunnel is accomplished and the surrounding rock of the tunnel is stable.

关 键 词：抽水蓄能电站 急曲线小断面 螺旋上升 排水廊道 TBM 

分 类 号：TM743[电气工程—电力系统及自动化]