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In soft ground, adaptable muck removal is key

机译:在松软的地面上,适应性除渣是关键

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摘要

The design of conveyor systems must, however, take into account the differences in material between soft ground and hard rock, including belt cleaning features. sealed transfer points and other elements. According to Norris, downtime for the project duration was minimal: 'I recall that early on some adjustments were made, and we did stop once to add an additional roll of belt. The project is unique in several respects - the 5.8-km(3.6-mile-) long tunnel, driven using a 4.25-m- (13.9-ft-) diameter EPBTBM. is fairly long for soft ground projects, passes through a number of manholes and includes a tunnel liner of precast concrete segments with an imbedded PVC layer never before used in North America.
机译:但是,输送机系统的设计必须考虑到软土和硬石之间的物料差异,包括皮带清洁功能。密封的转运点和其他元素。根据Norris的说法,项目工期的停机时间非常短:“我记得很早就进行了一些调整,我们确实停下了一次,以增加一圈皮带。该项目在几个方面都是独一无二的-5.8公里(3.6英里)长的隧道,使用直径4.25米(13.9英尺)的EPBTBM进行驱动。对于软土地基项目而言,它相当长,需要经过许多人孔,并且包括预制混凝土段的隧道衬砌,该衬砌带有嵌入的PVC层,在北美从未使用过。

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  • 来源
    《Mining Engineering》 |2010年第6期|p.1-3|共3页
  • 作者

    Desiree Willis;

  • 作者单位

    Desiree WillisDesiree Willis is technical writer with the Robins CO. Kent, WA, e-mail willisd@robbinstbm.com;

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