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现场试验表明只有60％安装好的锚杆在起锚固作用。一种新的检查方法证明锚固质量与安装有关,并且当需要时,这种新方法可进行跟踪检验。
Field tests showed that only 60% of installed anchors are anchoring. A new inspection method proves that the quality of the anchorage is related to the installation, and that this new method can be tracked when needed.