大直径主梁式TBM撑靴油缸洞内更换技术

Supporting Shoe Oil-cylinder Replacing Technology of Large Diameter Main Girder Type TBM Inside Tunnel

TBM(隧道掘进机)不仅是一台设备,更是一套复杂的隧道施工系统,因此要求其重要部件必须具备高可靠性,否则会给工程建设带来巨大损失。兰渝铁路西秦岭隧道TBM施工实践中,由于产品质量原因导致其撑靴油缸损伤,研究制定了洞内更换方案和九步操作法,取得良好效果。可靠的TBM设备质量是隧道顺利施工的有力保障,一定要从源头抓起,高度重视,全过程控制,以部件质量保整机质量,以科学规范的操作和维修保养保持TBM设备状态持续完好。

TBM （tunnel boring machine） is not only a device, but also a complex system Of tunnel construction, therefore its important components must have high reliability, otherwise it can bring huge loss to construction. Taking the TBM con- struction used in Lanzhou-Chongqing Railway West Qinling Tunnel as an example, the replacing inside tunnel scheme and nine-step method were taken due to the supporting shoe oil-cylinder was damaged by the product quality, which achieved a good result. Reliable quality of the TBM equipment is powerful guarantees for the tunnel＇ s smooth construction. We must attach great importance to the quality of the equipment from the beginning, with parts quality to keep the whole machine quality, and scientific and standardized operation and maintenance to maintain TBM equipment in good condition.