采矿工程论文答辩

0前言(或引言) (1)

1矿震 (2)

1.1矿山微震 (2)

1.1.1矿山微震的定义 (2)

1.1.2矿山微震的特点 (2)

1.2矿震的分类 (2)

2矿山微震信号及干扰因素 (3)

2.1微震信号 (3)

2.1.1矿山微震信号的形成...................................................3...6结论 (5)

致谢 (6)

参考文献 (7)

附录A 译文........................................................................45附录B 外文文献 (64)

目前，随着我国大部分矿井进入深部开采，矿震灾害将日益严重，因此必须对矿震预测预报做进一步研究。

本文对国内外矿井矿震的发生历史及现状、矿震的预测防治技术进行了综合阐述，对矿山微震发生及其形成机理进行了分类和研究；论证了由矿震破坏产生的微震信号——P波、S波的形成及速度和运动状态；介绍了微震信号的几种干扰因素；在对水平摆、垂直摆和其它摆的工作原理进行说明的基础上，对微震信号的拾取技术也做了简单的介绍。结合北京木城涧矿区的地质地形特征，对微震信号拾取系统进行设计，形成了一套微震信号自动识别系统，系统对监测网络的布置以及站台的组成进行了分析，最后对所设计的系统进行了分析与调试。

矿山微震信号自动识别系统可以对由矿震所引发的微震信号进行拾取并分析P波、S波及干扰信号，确定信号到时及振幅、能量等微震属性，为预测和防治矿震灾害提供了必要参数。关键词：矿震；矿震波；信号拾取；识别

Abstract

Wi th th e deep ex pl oi tati on of m ost mines in our coun try, mining trem or becom es v ery seri ou s. Thu s th e predi cti on of mining trem or m u st be stu di ed fu rth er.

Hi story an d cu rrent si tu ati on of mining trem or was descri bed .Th e predi cti on of mining trem or an d prev enti on techn ol ogy was f ormul ated. Th e occu rren ce an d f orm ati on m ech anism of mining trem or was stu di ed an d cl assifi ed. Th e f ormul ati on of P wav e an d S wave、v el ocity an d m oti on statu s were sim ply dem on strated. Sev eral kin ds of in terf eren ce f actors were in trodu ced. On th e basi s of operati on prin ci pl e abou t th e l ev el pu tting、v erti cal pu tting an d oth er pu tting, th e si gn al pi ck-u p was in trodu ced an d th e sign al pi ck-u p sy stem was design ed. Com bin ati on with th e g eol ogi cal f eatures of terrain of th e ravin e mining area of wooden city in Beijin g, a set of sligh t sh ock au tom ati c recogniti on sy stem was design ed. Th e com posi ti on of m oni toring decorating an d pl atf orm of th e n etwork was an alyz ed. In th e en d th e desi gn ed sy stem was debugg ed.

Th e mi crosei sm sign al au tom ati c recogni tion sy stem can pi ck u p an d an aly si s P wav e 、S wav e an d th e in terf ering si gn al in th e mi crosei sm si gn al cau sed by th e mining trem or, determin e th e tim e of sign al arriv al an d am plitu de, en erg y etc. An d thi s will off er th e essen ti al param eter f or predi cting an d prev en ting th e cal ami ty of mining trem or.

Key w ords: m ining tr em or; m icr osei sm signal; sei sm ic w ave; signal pick-up; autom atic

r ecognition