An Analysis of the Properties of Rock Burst of the Workings in a Deep Ore Deposit

The characteristics and occurring factors of the rock burst occurred in the development workings are summarized on the basis of data recorded during of the drifting of the development workings at Dongguashan Mine. Many experiments were done using these rock samples of the mine in laboratory, which included tension tests?total stress strain tests?tests of cyclic load unload before peak strength and tests of stress relaxation after peak strength. In the light of the results of these tests, it was found that all the other rocks in the deposit have a tendency to rock burst, except marble. The viewpoint was proposed that rock burst has two properties of self source and inductivity.