本文選題：動(dòng)力災(zāi)害 + 微震監(jiān)測(cè)　； 參考：《內(nèi)蒙古科技大學(xué)》2013年碩士論文

【摘要】：由于我國(guó)的地質(zhì)地貌特征相對(duì)復(fù)雜，地下煤礦儲(chǔ)量占到我國(guó)煤炭總量的95%以上。在地下煤礦中，淺層煤層占的比例不大，地下煤層大多埋藏較深。因此在井工煤炭的開(kāi)采過(guò)程當(dāng)中，經(jīng)常會(huì)發(fā)生一些動(dòng)力災(zāi)害，包括煤與瓦斯突出、瓦斯爆炸、頂板冒落、水突出等事件。而且動(dòng)力災(zāi)害往往具有突發(fā)性，在很短時(shí)間內(nèi)發(fā)生猛烈的破壞現(xiàn)象。這就給煤炭的安全生產(chǎn)造成了很大的困難，同時(shí)也危害了礦工的生命安全。本文以新汶礦業(yè)中的原泉溝煤礦為研究背景，主要研究煤與瓦斯突出的機(jī)理并尋找解決措施。本文中以綜合作用假說(shuō)解釋了瓦斯突出的原理，使用聲發(fā)射探測(cè)技術(shù)對(duì)所需監(jiān)測(cè)的區(qū)域進(jìn)行連續(xù)、實(shí)時(shí)監(jiān)測(cè)，結(jié)合一定的軟件分析處理最終得出監(jiān)測(cè)區(qū)域發(fā)生突出的可能性，并指導(dǎo)防突措施的施工。 本文的主要內(nèi)容包括一下幾個(gè)方面:一、首先說(shuō)明了進(jìn)行該課題研究的背景，同時(shí)簡(jiǎn)單的介紹了常見(jiàn)的預(yù)測(cè)煤與瓦斯突出的方法。最終本輪文選用最為先進(jìn)、科學(xué)的動(dòng)態(tài)非接觸連續(xù)監(jiān)測(cè)方法，能有效的監(jiān)測(cè)幾乎所有的聲發(fā)射信號(hào)，對(duì)聲發(fā)射源的定位更為精確。二、根據(jù)綜合作用假說(shuō)，將瓦斯突出的過(guò)程分為5個(gè)階段，并對(duì)各個(gè)過(guò)程進(jìn)行了詳細(xì)的分析。在這些過(guò)程中的應(yīng)力變化、瓦斯?jié)舛鹊淖兓约奥暟l(fā)射現(xiàn)象的變化規(guī)律進(jìn)行了研究，為監(jiān)測(cè)系統(tǒng)的應(yīng)用，，提供理論支持。三、采用ESG公司提供的MMS微震監(jiān)測(cè)系統(tǒng)，實(shí)現(xiàn)24小時(shí)不間斷的對(duì)數(shù)據(jù)采集、處理，克服了傳統(tǒng)方法強(qiáng)度大、操作復(fù)雜、預(yù)測(cè)精確不夠精確，不能實(shí)現(xiàn)實(shí)時(shí)監(jiān)控，防止在非監(jiān)測(cè)期間發(fā)生瓦斯突出。原泉溝煤礦建立的監(jiān)測(cè)系統(tǒng)，針對(duì)礦區(qū)高應(yīng)力區(qū)、突出圍巖破裂進(jìn)行監(jiān)測(cè)、定位并及時(shí)分析；在此基礎(chǔ)上，借助科學(xué)計(jì)算，對(duì)監(jiān)測(cè)信息進(jìn)行分析、處理，建立一套適合于該礦區(qū)的理論依據(jù)和利于操作的礦井煤與瓦斯突出的預(yù)報(bào)分析的監(jiān)測(cè)系統(tǒng)，為實(shí)現(xiàn)礦山動(dòng)力災(zāi)害長(zhǎng)期預(yù)報(bào)奠定基礎(chǔ)。 由于本系統(tǒng)剛剛建立，并且現(xiàn)在開(kāi)采的煤層瓦斯涌出量不大，微震事件不多，但是通過(guò)對(duì)微震監(jiān)測(cè)的數(shù)據(jù)進(jìn)行分析，及時(shí)捕捉采礦活動(dòng)引起的煤巖震動(dòng)事件，為地壓活動(dòng)的監(jiān)測(cè)以及突出災(zāi)害的預(yù)測(cè)提供可靠的技術(shù)支持。
[Abstract]:Because of the relatively complex geological and geomorphological features, the underground coal reserves account for more than 95% of the total coal in China. In underground coal mines, the proportion of shallow coal seams is not large, and most underground coal seams are deeply buried. Therefore, in the process of coal mining, some dynamic disasters often occur, including coal and gas outburst, gas explosion, roof caving, water outburst and so on. And dynamic disasters are often sudden, in a very short period of time violent destruction phenomenon. This has caused great difficulties to the safety of coal production, but also endangers the safety of miners. Based on Yuanquangou coal mine in Xinwen mining industry, this paper mainly studies the mechanism of coal and gas outburst and looks for solutions. In this paper, the principle of gas outburst is explained with the hypothesis of comprehensive action, and the possibility of outburst in monitoring area is obtained by using acoustic emission detection technology to monitor the area continuously and in real time, and combining with certain software analysis and processing. And guide the construction of anti-outburst measures. The main contents of this paper include the following aspects: firstly, the background of the research is explained, and the common methods of predicting coal and gas outburst are introduced briefly. Finally, the most advanced and scientific dynamic non-contact continuous monitoring method is used in this paper, which can effectively monitor almost all acoustic emission signals and locate the acoustic emission source more accurately. Secondly, according to the comprehensive action hypothesis, the gas outburst process is divided into five stages, and each process is analyzed in detail. The changes of stress, gas concentration and acoustic emission in these processes are studied, which provides theoretical support for the application of the monitoring system. Thirdly, using the MMS microseismic monitoring system provided by ESG Company, the data acquisition and processing is realized 24 hours without interruption. It overcomes the traditional methods, such as large intensity, complicated operation, inaccurate prediction, and unable to realize real-time monitoring. Prevent gas outburst during non-monitoring. The monitoring system established in Yuanquangou coal mine is used to monitor, locate and analyze the rupture of surrounding rock in the high stress area of mining area, and on this basis, with the aid of scientific calculation, the monitoring information is analyzed and processed. A set of monitoring system for prediction and analysis of mine coal and gas outburst, which is suitable for the mining area, is established, which lays a foundation for the long-term prediction of mine dynamic disasters. Because the system has just been established, and the coal seam gas emission is not large and the microseismic events are not many, but through the analysis of the data of microseismic monitoring, the coal and rock vibration events caused by mining activities can be caught in time. It provides reliable technical support for the monitoring of ground pressure activities and the prediction of outburst disasters.
【學(xué)位授予單位】：內(nèi)蒙古科技大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2013
【分類(lèi)號(hào)】：TD712

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