Xiangfeng Lv

TL;DR: In this paper, a dual-damage thermal-mechanical model accommodating the interaction of thermal conductivity, thermally-induced deformation, rock mechanical deformation and damage is defined to define the evolution of the thermal and mechanical properties of rock during thermal treatment.

TL;DR: In this article, the effect of loading paths on coal failure was investigated in different loading paths and stages in a coal mine in northeast China, and it was found that the loading path changed the manner of energy accelerate-release, there were more plastic strain generation in coal under cyclic loading than that under grade loading.

TL;DR: In this article, a simplified analytical solution is developed for estimating the thrusts and bending moments of the circular tunnel in half space under the obliquely incident SV wave, which enables more precise forecasts than previous analytical solutions by the thin shell model.

TL;DR: The research shows under the same water content, the compressive strength and modulus of deformation decrease with an increase in the number of freeze-thaw cycles, the cohesion and internal friction angle decrease, and the amplitude gradually decreases before becoming stable.

TL;DR: In this paper, a simplified mechanical model for the analysis of dynamic destabilization of the overlying strata during underground mining was constructed, based on the mining of the 13210 working face in the Yima coal mine of the Gengcun village, China.