Inversion Of Mine Earthquake Parameters Around Mining Area Based On Trilateration Principle

The depth of mining is getting more deeper with coal exhausting in Chinese shallow and middle stratum in past decades. The average mining depth is deeper with more coal was produced by years. And there are more mine earthquake which is found in mining area all around. It not only is a threat for the safe of workers and equipment under mine but also is a potential danger for the buildings on the ground in the future. Mine earthquake is one of the problems to be solved urgently. To Monitor and locate mine earthquake more quickly and accurately with limited conditions is not only an important mean to ensure the safety of mining,but also a available reference for the prediction of the subsequent mine earthquake. For the above problems, the following issues will be discussed in this paper .The shortcomings of traditional mine location are discussed Firstly, A method to locate the parameters by using the Trilateration Network for calculating the coordinates of unknown points is proposed, The approximate values of location parameters of mine shock are calculated without error Firstly, establish a objective function by distance and calculate parameters of mine earthquake with least square principle.A program are made by MATLAB to achieve parameter calculation ,First, the simulation data are made for calculation and analysis to test accuracy of program. Then real data from mining area will be calculated.All results will be contrasted. It indicate the correctness and feasibility of the method, which provides a reference for further improving the location accuracy of mine earthquake.