The comparison indicates that there is very good linear correlation between pullout force of concrete and compressive strength. The thesis compared the formula with the strength-detecting formula of expanding bolt pullout method.
本文研究确定了胀栓拔出法的各种试验参数；对试验数据进行系统的回归分析，得出胀栓拔出法的测强公式及与回弹法、超声法综合测强公式，并对这几个测强公式进行了精确性比较，发现胀栓拔出法的混凝土拔出力与混凝土抗压强度具有良好的相关关系。
参考来源 - 检测混凝土强度的胀栓拔出法新技术研究·2,447,543篇论文数据，部分数据来源于NoteExpress
In this paper, the writer studied a new detecting technique-expanding bolt pullout method by using expanding bolt as bulkhead.
本文采用胀栓作为锚固件，研究胀栓拔出法新无损检测技术。
Finally, the thesis analyzed the concrete failure mechanism of expanding bolt pullout method and summarized the influence of it.
本文分析了胀栓拔出法混凝土破坏机理，总结了胀栓拔出法的各种影响因素。
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