Mechanism of high-strength bolt and bolting-grouting support was studied based on the deformation and failure rules of soft roadway.
基于软岩巷道变形破坏规律，对高强锚杆辅助锚注支护加固机理进行了研究分析。
A newly developed high efficient degreasing and rust removing solution for pre blackening treatment of high strength bolt is presented.
根据高强度螺栓发蓝工艺的独特性，研制适用工艺要求的常温除油除锈液，在生产中应用良好。
Fatigue of grid structure with bolt-sphere joints mainly behaves fatigue in joints, the critical of which is fatigue of high strength bolt.
螺栓球节点网架的疲劳主要是节点的疲劳，而节点的疲劳关键是高强螺栓的疲劳。
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