TBM Construction Treatment Technologies Against Adverse Geological Conditions
Tunnel boring machine(TBM)excavation technology,with its characteristics of high efficiency and quality,as well as operational safety,is widely applied in various fields such as railways,highways,subways,water projects,and has been successfully promoted in general geological environments.Greater catastrophic potential,adverse geological conditions such as hard rock bursting,soft rock deformation,fault fragmentation zones and sudden mud inflows often lead to frequent problems in TBM construction,including surrounding rock collapses,support failures,machine jams,well flooding,and equipment damage.This paper summarizes existing construction technologies from four aspects,advanced active reinforcement technology,grouting and anchoring technology,segment support technology and reinforcement of weak surrounding rock through the use of boots and post-support.The aims to address issues such as cutterhead jams,shield grip failures,significant initial support deformations and slip of the supporting boots caused by adverse geological conditions.The goal is to enhance the TBM crossing ability in unfavorable geological environments,and increase TBM utilization rates and provide reference for similar projects.
万方数据
维普
