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本文主要针对中铁装备系列土压平衡盾构机上电流放大板（west）的工作过程进行了详细分析与介绍，并结合盾构机在实际施工过程中，对电流放大板出现的常见故障原因进行分析，并提出相应的解决办法。“,”This paper mainly analyzes and introduces the workingprocess of the current amplification board (west) on the earth pressurebalance shield machine of China Railway Equipment Series.Combinedwith the shield machine in the actual construction process, it analyzes thecommon failure causes of the current amplification board.And proposecorresponding solutions.