Cong Yuzhou

TL;DR: In this article, the authors investigated the most dangerous fire in the underground utility tunnel is the integrated pipe gallery power cabin, which is mainly represented by cable fires, and used the FDS software to simulate the occurrence of cable fires.

TL;DR: In this article, the same coal samples were tested for ultrasonic inspection, stereomicroscopic imaging and nuclear magnetic resonance (NMR) after different cold shock times, and the macroscopic damage was studied by ultrasonic wave; the changes of mesoscopic pores and fractures were studied by stereoscopic microimaging and digital image processing.

TL;DR: In this article, the effect of soundless cracking demolition agents (SCDAs) with noise-free, dust-free and safe characteristics have been analyzed by numerical simulation based on Pingdingshan coal mine.

TL;DR: In this paper, the effects of liquid CO2 injection on the coal strength were investigated using a uniaxial compression test, and the results indicated that the more CO2 affected, the greater the damage accumulation and the larger the destructive plastic region and lower the strain energy storage capacity.

TL;DR: In this article, the authors investigated the mechanism of temperature effect on coal during cold shock resulting from anhydrous low-temperature liquid nitrogen, which is a key issue in the application of liquid nitrogen in coalbed methane exploitation engineering.