Rock drillability reflects the drill bit fragments rock hardly or easily. At present, rock drillability classification indexes have rock single-axle compressive
Two design axioms and axiomatic approach were discussed. As an example of application, design process of a new style single prop was illustrated in term of axio
In this paper, a incremental form of constitutive laws for creeping studies are proposed. The equations are based on the concept of creep hardening surface. Dam
Aimed at more than 60 shaft linings damaged in Huaibei, Datun, Xuzhou and Yanzhou mine areas, this paper presents a new type of sliding shaft lining with asphal
3D-GIS spatial overlay analysis is being broadly concerned about in international academe and is a research focus. It is one of the important functions of spati