岩体加固问题的紧迫性是众所周知的。随着开采深度的增加,这一紧迫性也日益增加。按暴露面形成的时间,岩体加固可分为后加固及预加固。前者是从已经形成的开采空间进行,后者是在暴露面形成之前预先实 The urgency of rock mass reinforcement is well known. As the depth of mining increases, the urgency is also on the rise. According to the formation time of the exposed surface, rock reinforcement can be divided into post-reinforcement and pre-reinforcement. The former is from the already formed mining space, which is pre-exposed before the formation of the real