白皮书论文
在亚特兰大供水项目中用主梁式掘进机在坚硬的磨蚀片麻岩下掘进
佐治亚州亚特兰大市的供水项目是一个优先项目,其中包括一条5.0英里长的隧道,连接查塔胡奇河(Chattahoochee),该河将为该市建立一个应急供水系统。一个直径12.5英尺的主梁掘进机正在以每天高达100英尺的速度开挖该地区最深的隧道,穿过坚硬、磨蚀的片麻岩。本文研究了该项目的具体设计,以及掘进机的性能。根据本工程和该地区以往的工程,得出了该地区极硬地质条件下开挖的掘进机优化设计结论。
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