摘要
为解决双护盾TBM在城市地铁施工中始发困难、极限小转弯半径、穿越极硬岩及断层破碎带等工程难题,结合双护盾TBM在深圳地区的应用需求,研究双护盾TBM在深圳地铁施工中存在的问题及对策。1)提出双护盾TBM在R260m极限小转弯半径施工中的刀具磨损消耗规律、步进控制措施及测量顶台振动解决方案;2)提出一种分体始发技术方案以解决双护盾TBM始发场地狭小、空间受限问题;3)提出在210MPa极硬岩工况下双护盾TBM的针对性设计及刀具优化改进措施;4)提出双护盾TBM穿越断层破碎带掘进参数建议及应对策略。
The double-shield TBM applied in urban metro construction is always accompanied by difficulties such as difficult launching, limited small radius, crossing extremely-hard rock and fault and fracture zone. Hence, the problems and countermeasures for double-shield TBM applied in Shenzhen Metro construction are studied. Four aspects are proposed as follow:(1) Cutting tool wear and consumption rules, advancing control measures and solution of measuring platform vibration in the construction of double-shield TBM with limited small turning radius about 260 m;(2) a separate launching technical scheme solving the problem of limited space;(3) targeted design of double-shield TBM and improvements for cutting tool under 210 MPa extremely-hard rock condition;(4) tunneling parameters and countermeasures for double-shield TBM crossing fault fracture zone.
作者
宋天田
李宏波
陈岗
SONG Tiantian;LI Hongbo;CHEN Gang(Shenzhen Metro Group Co.,Ltd.,Shenzhen 518000,Guangdong,China;State Key Laboratory of Shield Machine and Boring Technology,Zhengzhou 450000,Henan,China;China Railway Tunnel Group Co.,Ltd.,Guangzhou 511458,Guangdong,China)
出处
《隧道建设（中英文）》
北大核心
2019年第6期998-1004,共7页
Tunnel Construction
基金
国家863计划项目(2012AA041802)
中国铁路总公司科技研究开发计划(2016G004-A)
中国中铁股份有限公司科研项目(2019-重点-20)
深圳地铁集团科研课题(ZHDT-KY035/2017)
中铁隧道局集团科技创新课题(隧研合2018-06)
关键词
地铁
双护盾TBM
极限小半径施工
分体始发
断层破碎带
极硬岩
metro
double-shield TBM
limited small radius construction
separate launching
fault fracture zone
extremely-hard rock
