摘要
千岛湖配水工程分水江穿江隧洞上覆岩体最薄处仅16 m,沿线透水构造发育,同江水连通。穿江隧洞的施工综合采用了超前地质预报先行、超前钻孔取芯和超前探孔跟进、钻灌一体机和常规灌浆手段并举的手段,顺利穿越同江水连通的破碎出水带。过程中未发生不可控突涌水的情况,最终安全、高效、快速的完成了穿江段施工。
The buried depth of Fenshui river tunnel in Qiandao Lake water distribution project is shallow,only 16 m,there are many permeable structure face along the tunnel line,and these permeable structure face connect with Fenshui river. The construction of Fenshui river tunnel execute the following strategy:carrying out geological prediction first,advanced drilling coring and advanced borehole following up,together with drilling and grouting machine and conventional grouting means. Successfully broken through the fractured zone which connected with Fenshui river,no uncontrollable situations of sudden water inflow occurred,finished the construction of crossing river tunnel safely,efficiently and rapidly.
出处
《科技通报》
2018年第5期83-87,92,共6页
Bulletin of Science and Technology
关键词
穿江隧洞
钻灌一体机
超前预注浆
超前地质预报
超前钻孔
crossing river tunnel
drilling and grouting machine
pre-grouting
advanced drilling coring
advanced borehole
