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母永奇:匠心熔铸青春 驾驭盾构穿江越海(图)

2017-08-15 22:32:27   中国经济网

正是靠着这股向上的劲头和激情,母永奇踏实肯干,刻苦奋进,担任主司机以来,对电器液压图纸了如指掌,并熟练掌握了“中国中铁”盾构、德国的海瑞克盾构、美国的罗宾斯盾构、日本的小松盾构等与之对应的操作方法,还多次被邀请去兄弟单位进行盾构机掘进指导、培训。

以精湛技艺攻克“拦路虎”

“参数控制不准,掘进出现失误,都会造成严重后果。”母永奇感觉到身上的责任非常重大,“我从来不敢有一丝马虎,尽可能地将风险降到最低。”

然而,“每个洞口都是不可复制的。”母永奇也遇到过掘进路上的“拦路虎”。

他曾驾驶的“中国中铁28号”盾构机,在穿越杭甬铁路桥时遇到了脱落的钻杆。经地质专家探测,两根长达27米的钻杆正好挡在了盾构施工的前方。面对这样的难题,刚刚接触盾构机的母永奇急成了热锅上的蚂蚁……

中铁隧道集团宁波地铁1号线项目部上还从来没有遇到过这样的问题。有专家提出采用沉井法,通过打竖井,挖通道取出钻杆,也有专家提出采用冻结法,通过开膛破肚明挖取出钻杆;还有专家提出带压进仓,进行切割取出钻杆。但种种方案,不是因为风险过高,就是因为成本过大,被一一否定。

正在大家一筹莫展之际,通过查阅资料和咨询其他单位的专家,母永奇提出采用“护筒开挖法”,具体采用双套管全螺旋回转钻机,利用全回转设备产生的下压力和扭矩,驱动钢套管转动,成功清理出钻杆。

“钻”这个字,是与母永奇在郑州地铁一号线、二号线并肩作战过的工友刘毅超对他的最深印象,“掘进工作要求的精确度是按毫米来算,盾构机在工作前姿态的调整,参数的摸索确定,都是母永奇一点点‘钻’出来的。”

善于钻研,喜欢琢磨的母永奇是把岗位当成事业来做。在短短的几年间,母永奇几乎斩获了一个优秀盾构主司机能够获得的全部荣誉。不仅享受国务院政府特殊津贴,曾先后获得“全国青年岗位能手”“河南省五一劳动奖章”“中国中铁劳动模范”“中国中铁青年岗位能手标兵”“中铁隧道集团青年岗位能手”等众多重量级荣誉奖项。

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