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大理岩磨擦试验及隧道掘进机刀具磨损分析——锦屏二级水电站引水隧洞工程

Keywords: Cerchar磨擦试验,大理岩,滚刀磨损,引水隧洞,隧道掘进机

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Abstract:

作者对锦屏二级水电站隧道掘进机施工引水隧洞沿线各大理岩岩组取样后在室内进了岩石的Cerchar磨擦试验,对试验结果进行了分级评价.通过对现场施工中的滚刀磨损数据分析表明,各大理岩岩组对刀具的磨擦性普遍较低,对刀具的正常磨损少,与磨擦试验结果一致;但由于隧道掘进机开挖过程中掌子面不平整,造成了大量滚刀的异常破坏.

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