方大集团北方重工：“小改小革”解决盾构机运维难题

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（来源：沈阳日报）转自：沈阳日报　　本报讯（特约记者刘国栋）10月21日，记者从方大集团北方重工获悉，北方重工沈阳地铁项目现场技术人员通过一项“小改小革”，成功解决了一项长期困扰土压平衡盾构机运维的污水系统难题。　　在原有系统中，盾尾漏浆等复杂工况极易导致隔膜泵堵塞，并引发单向阀磨损、隔膜片损坏等问题。这不仅造成维修频繁、成本居高不下，也严重影响了施工的连续性与进度。针对这一痛点，技术人员经反复...

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