Experimental investigation of the effect of grout with additive in improving ground support

This paper deals with the problems of the low bonding force between hardened resin and soft surrounding rock, and the rapid attenuation of anchoring forces when conventional anchoring methods are used for cable bolts. The main goal of paper is to develop methods that will take full advantage of the potentially great supporting force that can be provided by high-strength cable bolts installed in soft rock. The study described in this paper...