5月25日，中铁一局工人在南水北调中线平顶山西暗渠工程绑扎箱体钢筋。近日，被誉为“亚洲第一顶”的南水北调中线重点控制工程平顶山西暗渠工程取得重大突破，下层暗渠中孔过水通道顶进施工精准顶进到位，将在6月初实施最后的顶进施工。
平顶山西暗渠工程，设计为双层顶进施工，顶推物总重量达25952吨，双层顶进结构形式和工艺难度堪称“亚洲第一”。
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