黄沙矿区复杂生产环境下的多通道微震信号辨识分析
Identification and Analysis of Multi-channel Microseismic Signals in Complex Production Environment in Huangsha Mining Area
刘家胜 1钟晓阳 1方鑫 1曾贵庭 1温辉少 1李庶林 2熊璐伟 2卢贤锥3
作者信息
- 1. 江西铁山垅钨业有限公司,江西 赣州 342307
- 2. 厦门大学,福建 厦门 361005
- 3. 自然资源部丘陵山地地质灾害防治重点实验室,福建 福州 350002;福建省地质工程勘察院,福建 福州 350002
- 折叠
摘要
文章介绍了铁山垅钨业有限公司黄沙矿区井下的各种震源,在广泛现场监测的基础上通过震相分析对地下各种信号如爆破、机械作业设备、人员作业、岩体破裂等产生的震源信号进行了辨识,给出了各种震源波形的基本特点;同时,在理论上采用傅里叶变换辨识方法进一步对受干扰信号的波形进行了分析,说明了采用该方法可以更好地排除噪音信号的干扰,提取有用信号、正确选取信号初到时刻.本文介绍的信号辨识方法简便易行,而且基本可以满足矿山日常监测中对岩体破裂微震信号的提取需要.
Abstract
This article introduces various seismic sources underground in the Huangsha mining area of Tieshanlong tungsten mine company.Based on extensive on-site monitoring,seismic phase analysis is used to identify the seismic signals generated by various underground signals such as blasting,mechanical operation equipment,personnel operation,rock mass fracture,etc.The basic characteristics of various seismic source waveforms are provided.At the same time,using fourier transform identification method in theory to further analyze the waveform of the interfered signal can better eliminate the interference of noise signals,extract useful signals,and correctly select the initial arrival time of the signal.The signal identification method introduced in this article is simple and easy to implement,and can basically meet the needs of extracting microseismic signals from rock mass fractures in daily monitoring of mines.
关键词
微震信号/震相/FFT变换Key words
microseismic signal/seismic phase/FFT transformation引用本文复制引用
基金项目
福建省自然资源科技项目(KY-07000-04-2022-020)
出版年
2024
NETL
NSTL
万方数据