TBM construction is advance in advance and is protected mechanism

The utility model discloses a TBM construction is advance in advance and is protected mechanism, including shield (2) that have blade disc (1) the front or the side of blade disc (1) are provided with the slip casting stock group that penetrates blade disc (1). The utility model has the advantages of simple structure, construction convenience, low cost, adopt it through tool bore, manhole with scrape blade disc trompil such as cinder hole to blade disc the place ahead and the peripheral resin stock of making the blade disc and can cutting off of executing to the weak fractured rock mass in the place ahead is consolidated in slip casting, plays to advance in advance and protects the purpose, guarantees that TBM is smoothly through the country rock crushed zone. 本实用新型公开了种TBM施工超前预支护机构，包括带有刀盘（1）的护盾（2），在所述刀盘（1）的正面或/和侧面设置有穿入刀盘（1）的注浆锚杆组。本实用新型具有结构简单、施工方便、成本低廉的优点，采用它通过刀孔、人孔和刮渣孔等刀盘开孔向刀盘前方及周边施作刀盘可切断的树脂锚杆，并注浆加固前方软弱破碎岩体，起到预支护目的，保证TBM顺利通过围岩破碎带。