固增水电站引水隧洞特大突水突泥处理采用的施工技术  

Construction Technology of Extra-Large Water and Mud Inrush in Headrace Tunnel in Guzeng HEP

作　　者：郭益[1] 戚绍礼 王军红 GUO Yi;QI Shaoli;WANG Junhong(Sinohydro Bureau 7 Co.,Ltd.,Chengdu,Sichuan 610213)

机构地区：[1]中国水利水电第七工程局有限公司,四川成都610213

出　　处：《四川水力发电》2022年第4期108-111,共4页Sichuan Hydropower

摘　　要：固增水电站采用引水式发电,深埋隧洞全长11.06 km。引水隧洞开挖过程中发生过特大突水突泥事件,给隧洞开挖造成了巨大影响。以EPC模式承担工程建设的总承包方利用自身优势,及时组织设计和施工单位针对不良地质问题进行研究讨论,确定了合理的施工方案并予以实施,取得了较好的效果,为后续各类不良地质条件的洞段顺利开挖奠定了良好基础,节约了成本,促进了履约。Guzeng HEP is a diversion-type project,with full tunnel length of 11.06km.During the excavation of headrace tunnel,a huge water and mud inrush emerged.The general contractor of this EPC project takes advantage of his own advantages to organize the design and construction teams to study the undesired geological condition in time,to determine the reasonable construction scheme,The success lay a solid foundation for the smooth excavation of tunnel sections with undesired geological to save costs,promote the implementation of the contract.

关 键 词：突水突泥 排水孔 大管棚 超前预固结灌浆 超前预报 固增水电站 施工技术 

分 类 号：TV554[水利工程—水利水电工程] TV52TV7