ANALYSIS OF INFLUENCED REGIONS AND CHANGE TREND FOR ROCK MASS DISPLACEMENT DUE TO MINING OF IRON ORE IN SOFT ROCK STRATA
LI Wenxiu1，ZHENG Xiaoping2，WANG Jing1
(1. College of Machinery and Civil Engineering，Hebei University，Baoding，Hebei 071002，China；2. Hebei Construction Group Co.，Ltd.，Baoding，Hebei 071051，China)
Abstract：In north mining area of Guanzhuangdong Mine，in which the sublevel caving was used，although the buildings are beyond the ground subsidence influence criteria，there has been widespread evidence of deformation of land surface far away from the mining area. Combining with analysis of north mining area of Guanzhuangdong Mine analysis，laws and characteristics of rock mass displacement and deformation caused by the deep mining of iron ore in soft rock strata are given. Both observed and theoretical analysis show that the subsidence of overburden layer is characterized by uniform and entire compression，displacement and deformation. And the surface deformation is continual and slow with a long duration of movement due to deep mining of iron ore in soft rock strata.
李文秀，郑小平，王晶. 软岩地层地下铁矿开采岩体移动影响范围及变化趋势分析[J]. 岩石力学与工程学报, 2009, 28(S2): 3673-3678.
LI Wenxiu1，ZHENG Xiaoping2，WANG Jing1. ANALYSIS OF INFLUENCED REGIONS AND CHANGE TREND FOR ROCK MASS DISPLACEMENT DUE TO MINING OF IRON ORE IN SOFT ROCK STRATA. , 2009, 28(S2): 3673-3678.
