CHINA MINE ENGINEERING

Based on an example of the upstream water retaining dam heightening project for the tailings pond heightening, aiming at the requirements that there is a road on the dam crest to reserve and there is a large number of waste rock near the site to use, against the problem that the dam foundation has deposited thick fine tailings soil, the heightening scheme of using inclined wall earth dam and the dam foundation treatment method of riprap compaction combined with dynamic compaction replacement are recommended, the safety of the heightening scheme and the dam foundation treatment method is verified through the seepage and stability of dam, porosity measurement of dam fill and measured settlement data of the dam.