In the area of Hewang iron ore area,there are not only the flourishing iron ore and Wanda iron mine with normal mining,but also the private small mine owners are more and more serious.The underground mining of the mine has been difficult to be statistically analyzed and made a serious threat to the life and property of the people in this area.For this purpose,the study of rock movement and deformation in the abandoned goaf area of Hewang iron mine is studied in this paper.The paper first analyzes and studies the geological conditions of Hewang mining area,and makes a field survey on the distribution of the residual goaf in the area.Then through the analysis of the existing data that has been mastered,the results show that the situation of the residual mining area in the underground mine is very difficult to get the detailed statistics.Then according to the study of the geological characteristics of the region,the method of ground penetrating radar and EH4 magnetotelluric detection is selected to detect the distribution of the residual mined area in the area of Hewang mining area.Through the analysis and study of the detection data,it is found that the direction of the gob distribution is near east-west,and the distribution is linear with the deposit.The length is large,the horizontal width is small,the dip angle is large,and the ore bearing horizon is generally consistent with the occurrence characteristics of East-West distribution.It is very easy to cause sudden collapse of the ground,and it is also likely to cause great harm to the lives and property of the local people.The paper first analyzes and studies the geological conditions of Hewang mining area,and makes a field survey on the distribution of the residual goaf in the area.Then through the analysis of the existing data that has been mastered,the results show that the situation of the residual mining area in the underground mine is very difficult to get the detailed statistics.Then according to the study of the geological characteristics of the region,the method of ground penetrating radar and EH4 magnetotelluric detection is selected to detect the distribution of the residual mined area in the area of Hewang mining area.Through the analysis and study of the detection data,it is found that the direction of the gob distribution is near east-west,and the distribution is linear with the deposit.The length is large,the horizontal width is small,the dip angle is large,and the ore bearing horizon is generally consistent with the occurrence characteristics of East-West distribution.It is very easy to cause sudden collapse of the ground,and it is also likely to cause great harm to the lives and property of the local people.According to the above analysis,different comprehensive treatment schemes for the goaf are put forward,and the threat posed by the goaf to the local masses is solved in time.The research results not only have a guiding significance for the analysis and research of the residual mining area of Hewang iron mine and the deformation and deformation of the overlying rock,but also provide a scientific reference for the analysis of the residual mining area detection and the analysis of the deformation and deformation of the overlying rock under similar condition. |