大倾角引水斜井TBM关键技术研究及应用  

Crucial Construction Technology of Tunnel Boring Machines for Constructing Large-Slope Inclined Shaft in Pumped Storage Power Station

作　　者：贾连辉 孙恒 张兴彬 于庆增 李雷[3] 宁向可 JIA Lianhui;SUN Heng;ZHANG Xingbin;YU Qingzeng;LI Lei;NING Xiangke(China Railway Engineering Equipment Group Co.,Ltd.,Zhengzhou 450016,Henan,China;Henan Luoning Pumped Storage Co.,Ltd.,Luoyang 471700,Henan,China;Sinohydro Bureau 6 Co.,Ltd.,Shenyang 110000,Liaoning,China)

机构地区：[1]中铁工程装备集团有限公司,河南郑州450016 [2]河南洛宁抽水蓄能有限公司,河南洛阳471700 [3]中国水利水电第六工程局有限公司,辽宁沈阳110000

出　　处：《隧道建设（中英文）》2024年第8期1660-1668,共9页Tunnel Construction

基　　金：河南省重大科技专项(231100220700)。

摘　　要：为解决传统抽水蓄能电站大倾角引水斜井施工安全风险高、环境影响大、施工效率低的问题,提出采用大倾角全断面斜井TBM掘进。首先,针对洛宁抽水蓄能电站工程和地质特点,论证采用全断面斜井TBM施工的技术优势,完成洛宁抽水蓄能电站全断面斜井TBM选型;其次,提出国产首台大倾角全断面斜井TBM关键技术,包括安全防溜及换步工艺、出渣及异常情况处理、整机物料运输、不良地质处理等多项关键技术;最后,通过实施上述技术,完成洛宁抽水蓄能电站斜井TBM设计制造及应用。实践证明:1)在抽水蓄能电站引水斜井采用全断面斜井TBM施工切实可行,且具有环境破坏小、绿色低碳等优点;2)采用敞开式主机并配置双重防溜撑靴适用于大倾角施工,具有安全系数高的特点;3)从斜井底部到TBM设备尾部采用液压绞车运输,TBM设备尾部至TBM前部采用单轨吊机运输,可满足高频次人员、物料的运输要求。The construction of water-diversion inclined shafts with large slopes in pumped storage power stations using conventional methods presents numerous challenges,including high safety risks,significant environmental impacts,and low construction efficiency.To address these issues,a full-face tunnel boring machine(TBM)has been specifically designed and developed.Initially,the application of a full-face inclined shaft TBM is justified based on the project and geological characteristics of the Luoning pumped storage power station,leading to the selection of an appropriate TBM type.Subsequently,the authors introduce the critical technologies of the first Chinese full-face inclined shaft TBM designed for steep inclines.These technologies encompass anti-back-slip mechanisms,machine stepping,mucking,logistics,handling of abnormal situations,material transportation,and management of complex geological conditions.The implementation of these technologies in the construction and operation of the inclined shaft TBM at the Luoning pumped storage power station yields significant outcomes:(1)The full-face inclined shaft TBM is suitable for constructing pumped storage power stations,demonstrating minimal environmental impact and low carbon emissions.(2)The open-type main machine,equipped with double anti-back-slip grippers,fulfills the requirements for constructing at steep inclines while ensuring high safety levels.(3)The strategic placement of hydraulic winches in the assembly chamber and the installation of return rope wheels at the TBM's tail facilitate the frequent transportation of personnel and materials.

关 键 词：抽水蓄能电站 斜井TBM 安全措施 物料运输技术 

分 类 号：U45[建筑科学—桥梁与隧道工程]