开敞式TBM在铁路长隧道特硬岩、软岩地层的施工技术

CONSTRUCTION TECHNIQUE OF OPEN TBM FOR LONG RAILWAY TUNNELS IN VERY HARD OR SOFT ROCK STRATA

本文主要论述了开敞式TBM在铁路长隧道特硬岩、软岩地层的施工技术,并与当前国内外同类研究、同类技术进行了综合比较。重点研究了施工过程中的主要技术难点和关键技术,其中:TBM施工组织技术、刀具耗损、施工进度与围岩特性关系、TBM刀具国产化研究、TBM在不良地质段的施工技术、TBM施工中的测量控制技术、仰拱预制块的制作及安装工法、内层衬砌和整体道床快速施工、TBM施工的有轨快速运输系统、TBM施工通风及水电供应系统等的研究达到或超过了国际水平。

The construction technique of open TBM for long railway tunnels in very-hard or soft rock strata and it's comparison with contemperary te chniques are presentedThe key techniques and some difficult points are emphatically studied: the relationships of reamer wearing and driving rate with the character istics of surrounding rocks,domegting menufactared reamers for TBM, construction techniques of TBM in unfaroraden geological conditions, surveying and control techniques during the TBM driving,manufacturing and installation methods of ballastless roadbed prefabricated invert blocks, quick construction of secondary lining and ballastless road bed,qui ck track-transportation system and ventilation system, water and e lectricity supply during the TBM construction