摘要
南水北调安阳市西部调水工程穿越山区段拟采用隧洞输水,施工方式为双护盾TBM及钻爆法,工程区岩性主要为奥陶系中统马家沟组石灰岩,存在的主要工程地质问题有洞口边坡稳定问题、浅埋段围岩稳定问题、断层破碎带问题、岩溶发育问题等,不良地质会影响洞室稳定,TBM卡机风险较高,影响隧洞施工安全。对工程区关键地质问题进行分析评价,提出合理的处理建议,对采用TBM施工隧洞的勘察、设计、施工具有参考意义。
The western water transfer project of the South-to-North Water Diversion Project in Anyang City,traversing mountainous areas,is planned to use tunnel water transfer.The construction method is double shield TBM and drilling and blasting method.The main rock type in the project area is the limestone of the Majiagou Formation in the Middle Ordovician.The main engineering geological problems include the stability of the entrance slope,the stability of the shallow buried section surrounding rock,the problem of fault fracture zone,and the problem of karst development.Adverse geology affects the stability of the tunnel,and the risk of TBM jamming is high,which affects the safety of tunnel construction.The article analyzes and evaluates key geological issues in the engineering area,proposes reasonable treatment suggestions,and provides valuable reference for the survey,design,and construction of tunnels constructed using TBM.
作者
周康珂
南玉贤
ZHOU Kangke;NAN Yuxian(Henan Water Planning and Design Research Co.Ltd.,Anyang 455000,China)
出处
《海河水利》
2025年第4期81-84,共4页
Haihe Water Resources
关键词
南水北调工程
TBM
隧洞
工程地质问题
South-to-North Water Diversion Project
TBM
tunnel
geological issues
