基于测边网原理的矿区微震参数反演

发布时间：2018-04-01 14:18

本文选题：矿震监测　切入点：监测精度　出处：《山东科技大学》2017年硕士论文

【摘要】：随着浅中层煤矿开采的逐渐枯竭,我国的煤矿开采逐渐向中深层发展,煤矿开采的平均采深在逐年增加,随着开采面深度的增加,矿震发生的强度与频度也随之增加,矿震往往以煤矿开采工作面为中心发生。矿震的发生不仅对煤矿开采活动造成了安全威胁,并且也会对开采面上的地面上的建筑物造成损害。矿震已逐渐成为矿山开采安全的重要问题之一,如何在有限条件下更加快速、准确地监测和定位矿震,不仅是保障矿山开采活动安全重要手段,也为后续矿震的预测提供一定参考。针对以上问题,本文主要讨论和研究以下内容:阐述、分析了传统矿震定位的缺点,提出了一种利用测边网计算未知点坐标来对矿震参数进行定位的方法,首先阐述了在不考虑误差时解算矿震定位参数近似值,然后在考虑误差的情况下,利用距离作为目标函数的参数并结合最小二乘原理来解算矿震定位参数。通过利用MATLAB编写相关程序来实现参数解算过程,首先利用模拟数据进行计算、分析,来验证新方法对解算矿震定位参数效果、检验程序的正确性及质量。然后利用程序解算矿区实测数据,对结果进行对比、分析,验证了所提方法的正确性和可行性,为进一步提高矿震定位精度提供了参考。
[Abstract]:With the gradual depletion of shallow and middle coal mining, the coal mining in our country gradually develops to the middle and deep level, the average mining depth increases year by year, and with the increase of mining surface depth, the intensity and frequency of mine earthquakes also increase.Mine earthquakes often take the coal mining face as the center.The occurrence of mine earthquake not only poses a safety threat to coal mining activities, but also damages buildings on the ground.Mine earthquake has gradually become one of the important problems of mining safety. How to monitor and locate mine earthquake more quickly and accurately under limited conditions is not only an important means to ensure the safety of mining activities.It also provides a certain reference for the prediction of subsequent mine earthquakes.In view of the above problems, this paper mainly discusses and studies the following contents: expounding and analyzing the shortcomings of traditional mine earthquake location, and putting forward a method of locating mine earthquake parameters by calculating unknown point coordinates by using the boundary measuring net.In this paper, the approximate values of ore-quake location parameters without error are first expounded. Then, distance is used as the parameter of objective function and the least square principle is used to solve the parameters of ore-earthquake location.The process of parameter calculation is realized by using MATLAB program. Firstly, the simulation data is used to calculate and analyze the new method to verify the effect of the new method on solving the parameters of ore-quake location, and to verify the correctness and quality of the program.The results are compared and analyzed, and the correctness and feasibility of the proposed method are verified, which provides a reference for further improving the accuracy of mine earthquake location.
【学位授予单位】：山东科技大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TD32

【参考文献】