THE RESEACH OF A NEW MINING METHOD OF INCLIND MEDIUM THICKNESS ORE BODY

摘要

Among the inclined medium thinkness ore body,if it is 4-6m thick,30-40 dipping ,with a incompetent hanging wall and a competent to medium competent immediate roof,it is very difficult to extract. As the ore reserve is not high,it needs accurate planing of the developing projects and the carefull selection of the mining equipments.For the immediate hanging wall is thin and incompetent,it, during the minig process,falls and results in dilution and safty accidents by using the conventional supporting method.If the integrity of the ore body is destroyed by joints and fracturs,it is not easy for safty production and needs a flexible mining method.Obviously, for mining the inclined medium thick ore body, it is very difficult to have a good result by using the conventional stoping.Therefore,seeking a new mining method is a urgent need.