近日，伴随着盾构机刀盘旋转切割石块发出的轰隆声，“和建一号”盾构机从地铁12号线臣田北站接收端头破壁而出，标志着臣臣区间（臣田站-臣田北站）盾构区间右线掘进任务顺利完成。
臣臣区间线路大体呈东南-西北走向，右线隧道长约1039.2m。臣田站为盾构始发端，臣田北站为盾构接收端。此线路掘进采用开挖直径为6470mm复合式土压平衡盾构机施工。
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