Study Of Deep Mine Roadway Deformation Regular And Supporting Technology In Tao'er Mine Expansion Area

With the development of mine exploit in our country,it is true that the depth of mining must have been increased,and it also effects the mining now and the mine building in the future.The control of roadway stability,especially the control of deep mine roadway under the high stress is always one of the difficult problems.How to face the complicated geological conditions and solve the problems of deep mining support.It will be very important to deep mining in long-term.In this paper,compositive research techniques including of theoretical analysis, numerical simulation and in-situ measurement are carried out to investigate the destructive mechanics of roadway surrounding rock,law of roadway deformation and roadway supporting in Tao'er mine expansion area.Measured the roadway rock loose circle and stress the size and direction,and a project evaluation is given to surrounding rock.This paper identifies a key place of roadway and draws the conclusion that the support skill craft of key place reinforcement in deep mine,the best method of determined second support occasion and appropriate parameter of the support.Based on rock loose circle,the stress,pressure observation mine roadway data and Australia Caley Dr.maximum horizontal stress theory,such as determining a reasonable anchor cable network support parameters,and carried on the supports and protections effect simulation using the FLAC software.This research achievement will give scientific evidence for pressure control,support skill craft in roadway of deep mine,and it will give a beneficial reference to other analogial roadway.