
6月4日上午,世界首台大直径(9.53米)超小转弯TBM“抚宁号”在天津公司成功下线。该设备设计最小转弯半径90米,最大设计纵坡9.02%,是目前世界大直径TBM中转弯半径最小且纵坡最大的设备。
抚宁抽水蓄能电站位于河北省秦皇岛市抚宁区境内,总装机容量为120万千瓦。该电站建成后,将有效缓解冀北电网日益严重的调峰矛盾,并节省区域内火电标准煤消耗,改善大气环境质量。

“抚宁号”TBM是中铁装备为河北抚宁抽水蓄能电站量身打造的大直径超小转弯TBM,开挖直径9.53米,设计水平转弯半径90米,整机总长85米,总重1700吨。针对该项目开挖隧洞围岩完整性好、岩石抗压强度高、石英含量高、转弯半径小等施工重难点,中铁装备采用针对性的创新设计,搭载成熟的支护系统,实现高效破岩、稳定掘进、快速支护。
“抚宁号”开创了大直径超小转弯半径TBM研制的先河,它的下线标志着中铁装备超小转弯半径硬岩掘进机在大直径领域取得新突破,为抽水蓄能电站大断面隧洞提供了新的施工方案。
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