Research On The Regional Risk Prediction Technology Of Roof Caving In Underground Metal Mine

A lot of practices show that in the exploitation process,roof caving risk has regional distribution in different stages and zones,and this regional distribution is closely related to the formation conditions of underground deposits,groundwater,geological structure and other geological factors.The regional risk prediction of roof caving in underground metal mine is a technical means to quantitatively grade the regional risk of roof caving from the regional perspective.The research on the regional risk prediction technology of roof caving in underground metal mine has a guiding role for roof safety management of underground metal mine.Due to the limitation of practical conditions and technical means,there are few researches on the regional risk prediction technology of roof caving in underground metal mine.The purpose of this paper is to explore the relationship between geological factors and roof caving by using the relevant geological data during geological exploration,and put forward a regional risk prediction method of roof caving in underground metal mine based on geological survey data.In this paper,starting from the regional characteristics of roof caving in underground metal mine,the control effect of geological factors on roof caving in underground metal mine is analyzed,which provides theoretical basis for regional risk prediction technology of roof caving in underground metal mine based on geological exploration data;Combined with the related prediction theory,the technical framework of regional risk prediction technology of roof caving in underground metal mine based on geological exploration data is proposed;Based on the catastrophe progression method and surfer software,the regional risk prediction model of roof caving in underground metal mine is constructed,and the regional risk of mine roof falling is quantitatively divided.In order to ensure the accuracy of the regional risk prediction for roof caving in underground metal mine,this paper systematically analyzes the uncertainty in the regional risk prediction of roof caving on underground metal mine,and combining with the reliability theory,puts forward the reliability calculation model of the risk prediction method for roof caving in undergound metal mine;The results show that the method has a certain practical value,and has a certain reference value for the safety management of underground metal mine roof.