Experimental research and application of composite ground of steel ash pile within a steel factory in North Henan Province

The physical,chemical and mechanical properties, the stability and the mixture ratio of steel ash are introduced in this paper. The mechanism, design and testing method of steel ash pile in improving collapsible loess foundation of a factory in North Henan are illustrated. Economically and technically, the composite ground of steel ash pile is compared with that of gravel pile, which indicates that the former is superior to the latter obviously.