Opportunity,challenge and countermeasure of digital mining area and mine surveying周兴东, 赵华亮, 李博, 靳海亮454-457
Study on retaining roadway on original site in goaf after coal mining face crossing rise康红普, 朱泽虎, 王兴库, 杨跃翔458-461
A semi-analytic method used in three-dimensional subsidence calculation of room and pillar mining刘立民, 刘汉龙, 连传杰, 朱珍德, 卫建清462-467
A new GPS single epoch phase processing algorithm and its application in mining subsidence surveying韩保民, 欧吉坤, 成枢, 刘根友479-482