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Article
Bearing effect of arched frame structures with longitudinal connections in large-section tunnels
Aiming to improving the out-of-plane instability of I-steel arches in large-section tunnels, this study conducted the full-scale test of a single arch, the numerical test of the arched frame structures formed ...
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Article
The identification method for rock strength and joint while drilling based on cutting energy density
Rock strength and joint parameters are the basic parameters reflecting engineering rock quality. The traditional rock strength testing method requires taking cores from the surrounding rock on site and transpo...
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Article
Mechanical properties of rocks anchored by constant resistance energy-absorbing material
Anchoring support using bolts and cables works together with rock masses to form an integrated anchoring system and jointly resists the energy released by dynamic disasters. The strength and elongation of trad...
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Article
Mechanical behaviour analysis and support system field experiment of confined concrete arches
Soft rock control is a big challenge in underground engineering. As for this problem, a high-strength support technique of confined concrete (CC) arches is proposed and studied in this paper. Based on full-sca...
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Article
Newborn 2D materials for flexible energy conversion and storage
Newborn two-dimensional materials (NB2DMs) beyond graphene such as transition metal dichalcogenides (TMDs) exhibit excellent optoelectronic and mechanical properties as well as high theoretical specific capaci...
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Article
Failure mechanism of bolting support and high-strength bolt-grouting technology for deep and soft surrounding rock with high stress
In deep underground mining, the surrounding rocks are very soft with high stress. Their deformation and destruction are serious, and frequent failures occur on the bolt support. The failure mechanism of bolt s...
