Non-destructive testing and pre-warning analysis on the quality of bolt support in deep roadways of mining districts
Sign Up to like & getrecommendations! Published in 2017 at "International journal of mining science and technology"
DOI: 10.1016/j.ijmst.2017.06.028
Abstract: Abstract The bolt support quality of coal roadways is one of the important factors for the efficiency and security of coal production. By means of a self-developed technique and equipment of random non-destructive testing, non-destructive… read more here.
Keywords: bolt support; support; pre warning; bolt load ... See more keywords
Study of bolt load scatter due to tightening sequence
Sign Up to like & getrecommendations! Published in 2020 at "International Journal of Pressure Vessels and Piping"
DOI: 10.1016/j.ijpvp.2020.104054
Abstract: Abstract When a bolt is tightened, significant dispersion between the target preload and the obtained preload may be found. As a consequence, when bolts are subsequently tightened during the assembly process of a bolted joint,… read more here.
Keywords: final bolt; bolt; load scatter; study bolt ... See more keywords
Analysis of the Mechanical Characteristics of Bolts under Roof Separation Based on Exponential Function
Sign Up to like & getrecommendations! Published in 2020 at "Mathematical Problems in Engineering"
DOI: 10.1155/2020/7929157
Abstract: With regard to the excavation of coal mine tunnels, the phenomenon of roof separation frequently occurs owing to the deformation of roadway surrounding rocks, and the analysis of the influence of surrounding rock separation on… read more here.
Keywords: analysis; separation; exponential function; bolt load ... See more keywords
Damage mode and load distribution of countersunk bolted composite joints
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Composite Materials"
DOI: 10.1177/0021998320976782
Abstract: Tensile experiments were conducted with single-bolted and multi-bolted countersunk composite-metal joints. The finite element models with Hashin criteria and modified Camanho degradation law were developed to predict the bearing load and to simulate the failure… read more here.
Keywords: bolt load; load distribution; countersunk;