抽水蓄能电站地下洞室集群修建TBM关键技术研究与应用

Research and Application of TBM Key Construction Technologies for the Underground Tunnel Group of Pumped Storage Power Station

为了解决抽水蓄能电站地下洞室开挖建设周期长、施工难度大、安全风险高的问题,依据其地下隧洞种类特点,提出了大直径小转弯TBM、“精灵”TBM和大倾角斜井TBM三项关键技术,并研制了三种改进型TBM设备,分别适用于交通洞、排水廊道和引水斜井隧洞施工。针对抽水蓄能电站的单电站施工长度短和“电站群”开发规模大的特点,开展了TBM智能掘进关键技术研究;依托云计算平台及大数据收集分析,规划了抽水蓄能电站智能掘进的施工平台体系。搭载振动监测和TBM-SMART智能掘进系统的大直径小转弯TBM应用在抚宁抽水蓄能电站交通洞,实现了掘进数据的分析与共享;搭载地面远程控制、TBM-SMART智能掘进系统和振动监测技术的“精灵”TBM先后应用在多个抽水蓄能电站排水廊道,实现了“电站群”滚动施工。

To address the various problems in excavation of the underground tunnels of pumped storage power sta⁃tions,such as long construction period,large construction difficulties,and high safety risk,this paper takes into ac⁃count the types and characteristics of underground tunnels and puts forward three key technologies:large-diameter small-turning radius TBM,"Elf"TBM,and large-inclined shaft TBM.The study also develops three improved TBM equipment,which are applicable to the construction of traffic tunnels,drainage galleries,and water diversion inclined shafts respectively.In view of the short construction length of single power station and the large development scale of"power station groups",this paper carries out a study on the key technologies of intelligent TBM tunnelling.Based on a cloud computing platform and big data collection and analysis,this paper plans a construction platform system for the intelligent excavation of pumped storage power stations.The study applies large-diameter small-turning radius TBM equipped with vibration monitoring and TBM-SMART intelligent tunnelling system in the traffic tunnels of Funing Pumped Storage Power Station and realizes the analysis and sharing of the tunnelling data.It also applies the"Elf"TBM,which is equipped with ground remote control and the TBM-SMART intelligent tunnelling system and vibration monitoring technology,in the drainage galleries of several pumped storage power stations to realize the continuous con⁃struction of the"power station groups".