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App. and research of relationship between bolt pretension and first anchoring force
Author(s): GUO Haishu, LI Yancang
Pages: 32-
33
Year: 2001
Issue:
2
Journal: HEBEI COAL
Keyword: 锚杆; 预紧扭矩; 初锚力;
Abstract: 对锚杆预紧扭矩与初锚力的关系进行了理论分析、试验研究,并使之量化,提出二次预紧等提高初锚力措施,对于解决当前锚杆预紧扭矩偏低,锚空失效多的问题,具有一定的指导意义.
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