Investigation of the Bearing Characteristics of Bolts on a Coal–Rock Combined Anchor Body under Different Pull-Out Rates

• Published in: Energies (Basel) Vol. 15; no. 9; p. 3313
• Main Authors: Zhang, Pandong, Gao, Lin, Zhan, Xinyu, Liu, Pengze, Kang, Xiangtao, Ma, Zhenqian, Wang, Yongyin, Liu, Ping, Han, Sen
• Format: Journal Article
• Language: English
• Published: Basel MDPI AG 01.05.2022
• Subjects: Boreholes; Coal; coal–rock combined body; Dynamic loads; Epoxy resins; Load distribution; load-bearing properties; Mechanical properties; Pull out tests; pull-out rate; pull-out test; Rock bolts; Rock masses; Rocks; Shear strength; Strain gauges; Test systems; Theoretical analysis; China

In order to reveal the influence of the pull-out rate on the load-bearing properties of the coal–rock combined anchor body, the mechanical properties and failure characteristics of a coal–rock combined anchor body under different pull-out rates (10, 20, 30, 40, 50 mm/min) were studied using the pull...