Yunliang Tan

TL;DR: In this article, a new damage constitutive model based on energy dissipation was developed to describe the behaviour of rocks under cyclic loading in underground engineering such as coal mining and tunnel excavating applications.

TL;DR: In this article, two damage constitutive models of coal were established by serially connecting one damage body with one or two Newton body(s), to reveal the influences of rock(s) on the mechanical behavior of coal in coal-rock samples.

TL;DR: In this paper, the authors present a comprehensive field investigation of the ground response of a gateroad subjected to high stress induced by extracting a 17-m-thick coal seam, and the results of the borehole stress measurement showed that the maximum stress induced in the virgin coal pillar and the coal pillar reached 15.3 MPa and 23.9 MPa, respectively.

TL;DR: In this paper, the authors explored the influence of coal thickness on the mechanical behavior and the failure characteristics of rock-coal-rock (RCR) mass, and performed a systematic numerical simulation by particle flow code (PFC2D) was performed to deeply analyze the failure mechanical behavior of RCR specimens with different coal thicknesses in conventional compression tests.

TL;DR: In this article, the failure modes and energy evolution law of underground coal during the mining process were revealed, which can provide strong support for controlling underground surrounding rocks of the coal face and roadway in coalmines.