本文選題：地壓活動(dòng) + 巖爆傾向��； 參考：《江西理工大學(xué)》2017年碩士論文

【摘要】：本文對(duì)某深井礦山深部礦巖進(jìn)行了巖爆臨界深度判據(jù)計(jì)算以及巖石三軸應(yīng)力應(yīng)變?cè)囼?yàn),獲得相關(guān)巖性物理力學(xué)參數(shù)后,運(yùn)用常規(guī)的巖爆傾向判別方法對(duì)該礦深部的礦石和圍巖進(jìn)行了綜合評(píng)價(jià),結(jié)果顯示該礦深部礦巖均不同程度有巖爆發(fā)生傾向;在此基礎(chǔ)上,構(gòu)建了多通道IMS微震監(jiān)測(cè)平臺(tái),對(duì)礦區(qū)的地壓活動(dòng)規(guī)律進(jìn)行了分析研究,并采用地震學(xué)、統(tǒng)計(jì)學(xué)等理論對(duì)微震監(jiān)測(cè)數(shù)據(jù)進(jìn)行分析,提出了適合該礦山的巖爆災(zāi)害預(yù)警模式,并將預(yù)警結(jié)果與礦山現(xiàn)場(chǎng)進(jìn)行對(duì)比佐證。主要研究?jī)?nèi)容如下:1、巖爆深度判據(jù)及傾向性評(píng)價(jià)分析闡述了巖爆理論基礎(chǔ),分析了深井巖爆誘發(fā)因素,并對(duì)巖爆等級(jí)劃分進(jìn)行了分析和介紹。著重講述巖爆漸進(jìn)破壞過(guò)程,并對(duì)某礦深部礦巖進(jìn)行巖爆深度判據(jù)分析,將巖芯在實(shí)驗(yàn)室進(jìn)行三軸應(yīng)力應(yīng)變?cè)囼?yàn),對(duì)深部礦巖通過(guò)彈性應(yīng)變發(fā)、強(qiáng)度脆性系數(shù)法、變形脆性系數(shù)法進(jìn)行了巖爆傾向性評(píng)價(jià)。2、IMS微震監(jiān)測(cè)系統(tǒng)的構(gòu)建從軟硬件架構(gòu)、信號(hào)采集、定位算法、獲取波速、精度分析和信號(hào)識(shí)別等方面介紹了該礦多通道高精度微震監(jiān)測(cè)系統(tǒng),通過(guò)數(shù)值模擬計(jì)算和人工定點(diǎn)試爆的技術(shù)手段對(duì)該系統(tǒng)定位效果和靈敏度進(jìn)行了分析和計(jì)算,著重研究了如何對(duì)微震信號(hào)和干擾信號(hào)進(jìn)行識(shí)別和排除的幾種方法。3、采礦活動(dòng)引起的地壓活動(dòng)規(guī)律研究通過(guò)近半年的微震監(jiān)測(cè)數(shù)據(jù)結(jié)合實(shí)際開(kāi)采活動(dòng)對(duì)該礦淺部低強(qiáng)度的殘礦回收、中深部-550m的正常開(kāi)采活動(dòng)、深部開(kāi)拓工程等引起的地壓活動(dòng)規(guī)律分別進(jìn)行了分析。4、巖爆預(yù)警機(jī)制研究基于微震監(jiān)測(cè)數(shù)據(jù)分析研究了巖爆前兆性微震信息特征指標(biāo),并提出了巖爆三級(jí)預(yù)警模式。將事件數(shù)密度作為巖爆災(zāi)害的初始觸發(fā)條件,即如果礦山某區(qū)域密度達(dá)到臨界點(diǎn),給礦山做出安全排查指示,該區(qū)域存在巖爆的概率;將頻度b值或Df的突然下降特征作為第二預(yù)警條件,達(dá)到該條件時(shí),礦山需做好相應(yīng)的安全預(yù)防措施;將累積視體積與能量指數(shù)的變化特征作為巖爆災(zāi)害第三預(yù)警條件,如果該條件出現(xiàn),礦山需做好人員和設(shè)備的撤離工作,基于微震信息的三級(jí)預(yù)警模式在該礦山取得較好的應(yīng)用效果。
[Abstract]:In this paper, the rock burst critical depth criterion and triaxial stress-strain test are carried out on the deep ore rock of a deep mine, and the relevant lithologic, physical and mechanical parameters are obtained. A comprehensive evaluation of the ore and surrounding rock in the deep part of the mine is carried out by using the conventional method of discriminating rock burst tendency. The results show that there is a tendency to rock burst in the deep rock of the mine to varying degrees, and on this basis, a multi-channel IMS microseismic monitoring platform is constructed. In this paper, the law of ground pressure activity in mining area is analyzed, and the monitoring data of micro-earthquake are analyzed by using seismology and statistics theory, and the early warning mode of rock burst disaster suitable for the mine is put forward. The results of early warning are compared with mine site. The main research contents are as follows: 1. The rock burst depth criterion and tendency evaluation are analyzed, the theoretical basis of rock burst is expounded, the inducing factors of rock burst in deep well are analyzed, and the classification of rock burst grade is analyzed and introduced. The progressive failure process of rock burst is described emphatically, and the rock burst depth criterion is analyzed. The core is tested by triaxial stress and strain in laboratory, and the strength brittleness coefficient method is used to produce the deep ore rock through elastic strain. The deformation brittleness coefficient method is used to evaluate the tendency of rock burst. In this paper, the multi-channel high-precision microseismic monitoring system is introduced in terms of precision analysis and signal recognition. The positioning effect and sensitivity of the system are analyzed and calculated by numerical simulation calculation and artificial fixed point blasting test. In this paper, several methods to identify and eliminate microseismic and interference signals are studied emphatically. The ground pressure activity law caused by mining activities is studied. The shallow part of the mine is studied by combining the monitoring data of microseismic and actual mining activities in the past half a year. Low strength residual ore recovery, In this paper, the regularity of ground pressure activity caused by normal mining activity and deep development engineering in the middle depth of -550 m is analyzed respectively. The study on the early warning mechanism of rock burst is based on the microseismic monitoring data, and the characteristic indexes of the information of the precursor microearthquake are studied. A three-level early warning model of rock burst is proposed. The event number density is regarded as the initial trigger condition of rock burst disaster, that is, if the density of a certain area reaches the critical point, the probability of rockburst exists in the area if the safety check indication is given to the mine. When the frequency b value or the sudden drop of DF is taken as the second early warning condition, the corresponding safety precautions should be made in the mine, and the change of cumulative apparent volume and energy index is regarded as the third early warning condition of rock burst disaster. If this condition occurs, the evacuation of personnel and equipment should be done well, and the three-level early warning model based on microseismic information can be applied in the mine.
【學(xué)位授予單位】：江西理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：TD326

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 李凌飛;江文武;楊揚(yáng);李家福;;某鎢礦微震事件定位精度分析[J];中國(guó)鎢業(yè);2015年05期

2 高永濤;吳慶良;吳順川;楊凱;豆麗萍;姚鵬飛;;基于因素分布模型的微震定位精度敏感性分析[J];中南大學(xué)學(xué)報(bào)(自然科學(xué)版);2015年09期

3 羅周全;陳杰;謝承煜;汪偉;秦亞光;陳軼俊;;深部采場(chǎng)無(wú)底柱深孔后退式開(kāi)采圍巖力學(xué)響應(yīng)特征[J];科技導(dǎo)報(bào);2015年01期

4 樊換玲;;探討遠(yuǎn)程地壓監(jiān)控技術(shù)在地下礦山中的應(yīng)用[J];科技資訊;2014年18期

5 王靜;;沖擊礦壓微震實(shí)時(shí)監(jiān)測(cè)預(yù)警系統(tǒng)研究[J];煤炭工程;2014年05期

6 趙毅鑫;姜耀東;王濤;高峰;謝帥濤;;“兩硬”條件下沖擊地壓微震信號(hào)特征及前兆識(shí)別[J];煤炭學(xué)報(bào);2012年12期

7 錢七虎;;巖爆、沖擊地壓的定義、機(jī)制、分類及其定量預(yù)測(cè)模型[J];巖土力學(xué);2014年01期

8 張平;;紅透山銅礦地壓監(jiān)測(cè)系統(tǒng)建立與應(yīng)用[J];有色礦冶;2013年01期

9 朱權(quán)潔;姜福興;于正興;尹永明;呂壘;;爆破震動(dòng)與巖石破裂微震信號(hào)能量分布特征研究[J];巖石力學(xué)與工程學(xué)報(bào);2012年04期

10 馮夏庭;陳炳瑞;明華軍;吳世勇;肖亞勛;豐光亮;周輝;邱士利;;深埋隧洞巖爆孕育規(guī)律與機(jī)制:即時(shí)型巖爆[J];巖石力學(xué)與工程學(xué)報(bào);2012年03期

相關(guān)會(huì)議論文 前1條

1 侯發(fā)亮;劉小明;王敏強(qiáng);;巖爆成因再分析及烈度劃分探討[A];第三屆全國(guó)巖石動(dòng)力學(xué)學(xué)術(shù)會(huì)議論文選集[C];1992年

相關(guān)博士學(xué)位論文 前2條

1 唐禮忠;深井礦山地震活動(dòng)與巖爆監(jiān)測(cè)及預(yù)測(cè)研究[D];中南大學(xué);2008年

2 潘立友;沖擊地壓前兆信息的可識(shí)別性研究及應(yīng)用[D];山東科技大學(xué);2003年

相關(guān)碩士學(xué)位論文 前4條

1 張君;冬瓜山銅礦圍巖破壞震源機(jī)制與微震活動(dòng)響應(yīng)規(guī)律研究[D];中南大學(xué);2013年

2 徐海;地下金屬礦山產(chǎn)能優(yōu)化及開(kāi)采規(guī)劃[D];中南大學(xué);2012年

3 李素蓉;深部金屬礦山地震活動(dòng)特性及巖爆的支持向量機(jī)預(yù)測(cè)研究[D];中南大學(xué);2011年

4 喬慧珍;地震視應(yīng)力的研究[D];中國(guó)科學(xué)技術(shù)大學(xué);2005年

，

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