摘要
文章结合某输水隧洞在开挖过程中涌水塌方等不良地质段,利用超前地质探孔、超前小导管、超前预注浆等超前支护措施;短进尺、分层开挖的开挖方法以及及时跟进混凝土衬砌及高水材料回填灌浆等施工技术,达到了顺利安全快速地通过大规模涌水塌方等不良地质段的目的,并总结出了处理大规模涌水塌方等不良地质段的开挖支护的步骤,以及建议采用的施工技术参数。
Based on the problems of water gushing and collapse during the excavation of a water conveyance tunnel in badgeological section this paper introduces advanced pre-support measures such as geological prospecting hole advanced smallpipe grouting etc. short footage and stratified excavation method and timely follow - up concrete lining constructiontechnology as well as backfill grouting with high water material to safely and quickly pass through the bad geological sectionwith problems of large-scale gushing and collapse and also summarizes the excavation and support steps for treatment of badgeological section with problems of large - scale water gushing and collapse as well as provides recommended technicalconstruction parameters for reference.
出处
《红水河》
2018年第1期32-35,共4页
Hongshui River
关键词
不良地质
输水隧洞
施工技术
bad geology water conveyance tunnel construction technology
