Heavy Metal Mine Orebody Strata Movement And Ground Pressure Monitoring Technology Research

The metal mine the strata movement and ground pressure monitoring research, has been mining engineering and rock mechanics involved key technical problems. Since the 1980 s, most metal and nonmetal mines to ensure continued high efficiency mining, the strata movement and pressure monitoring began to be what people value. For large and thick metal mine ore bodies, due to its long-term KaiCaiSuo mining left empty complex formation security hidden danger of area mine safety a major threat. Affect the stability of rock layers there are many factors, including underground mining action for a important external cause. Underground mining under the influence of the strata movement phenomenon than ordinary outdoor metal mine is concerned, more complexity, sudden, is practical, comprehensive very strong research subject. In this paper on the basis of predecessors' achievements, combined with giant copper ore in guangxi pit no. 92, large and thick ore body and its surrounding orebody and surrounding rock of the strata movement of underground mining phenomenon, under the influence of the strata movement rules, methods of analysis and prevention measures.(1) in the metal mines on the basis of existing, with the study summarized the underground mining under the influence of the strata movement law, puts forward the method of pressure control, and expounds the corresponding prevention and control measures.(2) through the rock burst, combining the orientation mechanism and stress simulation analysis of rock burst, the corresponding prevention and ground pressure rockburst hazard mitigation measures.(3) according to the following five the steps of underground continuous mining under the condition of the strata movement and ground pressure monitoring, namely: engineering geology survey and mining status surveys, physical and mechanical parameters of rock mass of determining and engineering geological rock quality evaluation; Goaf stability studies; The strata movement law research; Pressure monitoring and warning, and establish the ground pressure monitoring system for real-time database, the pressure monitoring analysis; Prevention and control measures of research.(4) combined with the engineering practice, the engineering geology survey and in indoor rock mechanics experimental basis, and the use of advanced technology and methods of rock mechanics parameters determined, and then through the Moore the coulomb standards, numerical simulation analysis and 3 d elastic-plastic fem numerical simulation methods of guangxi in the copper mine pit, 92 companies large and thick ore body of the strata movement were analyzed, and compared with measured data, combined with the copper mine pit ground pressure monitoring practice, advances some effective warning methods.Subject research administered based on the front, to there is an urgent need to study the metal mine underground big range mining the influence and the continuous mining under the influence of the strata movement law analysis method, and ground pressure monitoring and warning technology, a field experiment research work and study, obtain the paper summarizes the research achievements, and puts forward the corresponding metal mine the strata movement and ground pressure, disaster prevention and control measures, has high practical value.