水利水电技术2018，Vol.49Issue(2)：77-85,9.DOI:10.13928/j.cnki.wrahe.2018.02.012
新疆某隧洞开挖TBM卡机原因及脱困处理措施
Causation of TBM jamming and its releasing treatment measures during tunneling of a tunnel in Xinjiang
苏珊 1曹海1
作者信息
- 1. 新疆额尔齐斯河流域开发工程建设管理局,新疆乌鲁木齐830000
- 折叠
摘要
Abstract
The open TBM for excavating the T4 geological exploration test tunnel for a water conveyance project in Xinjiang is jammed during passing through the F304 fault therein.In accordance with the conclusion of the advanced geological prediction and combined with the observation and analysis of the material contents of the in situ fault-fracture zone,it is indicated that the in situ fracture zone consists of friable rock mass with fractured structure and exhibits strong weathering,while local joint fissures therein contain fault gouge,thus the tunnel cavern cannot be self-stabilized;from which the frictional resistance from the locking of the cutter-head caused by the extrusion of the fractured rock from the collapse at the excavating face is larger than the driving rotation-torque of the cutter-head and then leads to that the cutter-head cannot rotate.The feasible measures for the TBM jamming releasing are put forward herein for the impacting area of the F304 fault-fracture zone and the construction range of the supporting system for the TBM,while some parameters and matters those necessary to be paid attention to during starting the jamming releasing of the cutter-head and the successive tunneling are summarized,so as to provide some construction experiences for how to effectively avoid and treat the tunnel section with poor geological condition and then ensure smooth passing through of TBM,moreover,provide references for the treatment of the similar jamming from the other TBM equipment as well.关键词
隧洞开挖/TBM/断层破碎带/卡机/脱困处理Key words
tunneling/TBM/fault-fractured zone/TBM jamming/jamming releasing分类
水利科学引用本文复制引用
苏珊,曹海..新疆某隧洞开挖TBM卡机原因及脱困处理措施[J].水利水电技术,2018,49(2):77-85,9.
