Progress in study of rockburst experiments and control countermeasures

摘要

For opening up a new way for the rockburst studies involving in physical modeling the rockburst phenomena, categorizing rockburst phenomenon according to the Hoek-Brown criterion and establishing the criterion, from an energy perspective, specifically for each type of the rockburst, the research team led by Prof. He Manchao have devoted to the innovative work towards the goals over years. This article introduces the state-of-the-art advancement of anchor bolt technology, i.e. the large deformation cable with constant-resistance (LDCR), developed by the prof. He Manchao in 2009 and patented both at home and abroad. The newly developed LDCR have the ability to accommodate larger deformations of the adjoining rock masses of a roadway tunnel at great depth and output a constant-drag resistance in response to the external perturbed forces.