| An opencast coal mine optimization research is an extremely complex and diverse problems in an opencast coal mine optimization in the process of study,the dump of mine dump capacity,and dump their own safety and stability is the key problem in the research of the analysis needs to consider.In recent years,due to the need of the development of mineral company,continue to promote open pit to underground project,great changes have taken place in mine production,the quantity of the waste pit mining residual period peeling produces change,a small amount of loose fine material of mine production caused by the need to heap row field.With the continuous downward extension of the deep stope,four real dump row high rising,dump the existing dumping volume has been unable to meet the needs of mine production capacity.Production safety problems,new real dump capacity shortage caused by the increasingly prominent,the limited land to meet the increasing needs of capacity to become an issue.In order to meet the needs of the mineral company project continued to promote the open pit to underground mine production needs and capacity requirements,we need to carry out research on new real dumping transformation optimization field volume.This paper combines the new mineral company real dump present and two dump rehabilitation project design and planning,combined with the regional geological conditions of the dump to carry out analysis,row earthwork accounting requires addition of the proposed optimization scheme and capacity,through the establishment of model of groundwater seepage field numerical simulation is carried out to demonstrate safety the stability of dump optimization after the transformation,and calculate the dump area flood drainage system,put forward a transformation of rear dump,and combined with the above analysis of soil field safety management measures in the corresponding row,the summary of the conclusions of the research,to provide reference for new housing mineral company stackpile follow-up rehabilitation decision also,provide practical reference value for the similar mine dump,more of open-pit to underground mining to large It has practical guidance. |