川藏铁路TBM隧道长度长、埋深大，可能会遇到硬岩岩爆、软岩大变形、断层破碎带、岩溶、有害气体、高温热害等不良地质，以及高海拔低氧、长距离反坡突涌水等施工难题，为保障TBM的安全、高效施工，开展川藏铁路隧道复杂恶劣工况条件下TBM适应性设计研究十分必要。总结川藏铁路TBM隧道工程难点及施工风险，依托以往的典型工程经验，从设备配置、结构优化、施工措施等方面提出TBM适应性设计方案，为设备配置和施工工艺优化提供参考，提高施工风险应对能力；同时，通过应用智能化、信息化技术，在TBM上集成复杂地质风险智能预警系统、施工协同管理平台、设备状态在线监测与诊断系统，实现TBM智能化辅助施工与风险防控。
The SichuanTibet railway tunnels bored by
tunnel boring machines (TBMs) are long and deep, some complex and severe
geological conditions may be encountered, such as hard rock burst, soft rock
large deformation, fault fracture zone, karst, harmful gas, high temperature
damage, as well as the construction problems including high altitude hypoxia,
and longdistance reverse slope with water inrush. To
ensure the safe and efficient construction of TBM, it is essential to carry out
TBM adaptive design for SichuanTibet railway tunnels
under complex and severe conditions. The difficulties and construction risks of
TBM tunnels of SichuanTibet railway are summarized,
and based on the previous typical engineering experience, the adaptive design
scheme is put forward from the aspects of TBM equipment configuration,
structural optimization, and construction measures, which can provide reference
for equipment configuration and construction process optimization, and improve
the capacity of construction risk response. Meanwhile, based on intelligent and
information technology, the intelligent early warning system of complex
geological risk, construction collaborative management platform, and online monitoring and diagnosis system of equipment status are
integrated on TBM, realizing TBM intelligent auxiliary construction and risk
prevention and control.
