抽水蓄能电站地下洞室开挖设备选型及TBM技术研究

Selection of Excavation Equipment and TBM Technology for Underground Cavern of Pumped Storage Power Stations

抽水蓄能电站地下洞室开挖装备和技术的发展直接关系到电站运营的安全和投产效率。其开挖机械设备也经历了风动钻机、多臂台车等阶段,传统机械设备无法满足重大工程对施工效率、社会效益、安全性等方面的要求。基于此,在对抽水蓄能电站地质和施工条件研究的基础上,提出抽水蓄能电站用TBM开发关键技术,针对交通洞&通风安全洞、排水廊道、引水斜井等工程,从TBM设备选型、小半径转弯技术、大坡度斜井安全措施、大坡度出渣技术等方面开展了针对性设计技术研究。通过山东文登抽水蓄能电站新型TBM工法的成功应用,新型TBM工法可以提高地下洞室开挖的效率和安全性,具备推广应用前景。

The development of equipment and technology for the excavation of underground caverns of pumped-storage power stations is directly related to the safety of power station operations and the efficiency of production.Its excavation machinery and equipment have also gone through stages such as pneumatic drilling rigs and dobby trolleys.Traditional machinery and equipment cannot meet the requirements of major projects for construction efficiency,social benefits,and safety.Based on the research on the geology and construction conditions of the pumped storage power station,the key technology for the development of TBM for the pumped storage power station is proposed.For traffic tunnels and ventilation safety tunnels,drainage corridors,diversion inclined shafts and other projects,from TBM equipment design technology research has been carried out in the aspects of model selection,small radius turning technology,high-slope inclined shaft safety measures,and large-slope slagging technology.Through the successful application of the new TBM construction method of Shandong Wendeng Pumped Storage Power Station,the new TBM construction method can improve the efficiency and safety of underground cavern excavation,and has the prospect of popularization and application.