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。
The leakage plugging stopple with a hollow expansion bolt used for the support structure of the deep foundation pit comprises an expanding pipe, a hollow bolt, a nut, a sealing rubber mat and a cork;
该深基坑支护结构漏水空心膨胀螺栓封堵塞包括胀管、空心螺栓、螺母、密封胶垫和软木塞，空心螺栓套在胀管内且其长 度大于胀管长度；
The leakage plugging stopple with a hollow expansion bolt used for the support structure of the deep foundation pit comprises an expanding pipe, a hollow bolt, a nut, a sealing rubber mat and a cork;
该深基坑支护结构漏水空心膨胀螺栓封堵塞包括胀管、空心螺栓、螺母、密封胶垫和软木塞，空心螺栓套在胀管内且其长 度大于胀管长度；
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