本文選題：煤體　切入點(diǎn)：沖擊傾向性　出處：《遼寧工程技術(shù)大學(xué)》2015年碩士論文

【摘要】：隨著煤礦開采深度的不斷增加,沖擊地壓災(zāi)害日趨嚴(yán)重,而煤體沖擊傾向性是影響沖擊地壓的內(nèi)在因素,應(yīng)用電荷感應(yīng)監(jiān)測技術(shù)能更直接掌握煤體所處的應(yīng)力狀態(tài),能更及時、準(zhǔn)確地對沖擊地壓災(zāi)害進(jìn)行監(jiān)測預(yù)報(bào)并達(dá)到有效防治的目的。本文采用理論分析和實(shí)驗(yàn)室實(shí)驗(yàn)相結(jié)合的研究方法。理論分析了沖擊傾向性各個指標(biāo)反映的煤體破壞機(jī)制,實(shí)驗(yàn)研究了煤破壞電荷感應(yīng)與沖擊傾向性各個指標(biāo)關(guān)系及不同含水率下煤破壞電荷感應(yīng)與沖擊傾向性關(guān)系。本文所做的主要工作以及創(chuàng)新點(diǎn)如下：分析抗壓強(qiáng)度及其煤體破裂機(jī)制,實(shí)驗(yàn)研究煤破壞電荷感應(yīng)與抗壓強(qiáng)度關(guān)系。得出抗壓強(qiáng)度越大,電荷衰減時間越短、累積電荷量越少,但單位時間電荷量越多。分析動態(tài)破壞時間及其反映的煤體破壞機(jī)制,實(shí)驗(yàn)研究煤破壞電荷感應(yīng)與動態(tài)破壞時間關(guān)系。得出動態(tài)破壞時間越長,電荷衰減時間越長、累積電荷量越多,但單位時間電荷量越少。分析沖擊能量指數(shù)及其反映的煤體破壞機(jī)制,實(shí)驗(yàn)研究煤破壞電荷感應(yīng)與沖擊能量指數(shù)關(guān)系。得出沖擊能量指數(shù)越大,電荷衰減時間越短、累積電荷量越少,但單位時間電荷量越多。分析彈性能量指數(shù)及其反映的煤體破壞機(jī)制,實(shí)驗(yàn)研究煤破壞電荷感應(yīng)與彈性能量指數(shù)關(guān)系。得出彈性能量指數(shù)越大,電荷衰減時間越短,但累積電荷量越多、單位時間電荷量越多。實(shí)驗(yàn)研究不同含水率下煤破壞電荷感應(yīng)與沖擊傾向性關(guān)系。得出隨含水率增加,沖擊傾向性各個指標(biāo)(除動態(tài)破壞時間之外)均減小,電荷衰減時間和累積電荷量呈現(xiàn)出先增大后減小趨勢。應(yīng)用電荷感應(yīng)監(jiān)測技術(shù)研究煤破壞電荷感應(yīng)與沖擊傾向性關(guān)系為現(xiàn)場提供實(shí)驗(yàn)數(shù)據(jù)和參考,具有重要的理論和實(shí)際意義。
[Abstract]:With the increasing depth of coal mining, rock burst disaster is becoming more and more serious, and the coal burst tendency is the internal influencing factors of rockburst, the application of charge induction monitoring technology can more directly grasp the coal stress state, more timely, accurate monitoring and prediction of rockburst disasters and achieve effective prevention and treatment objective. This paper uses the research methods of theoretical analysis and laboratory experiments combined with theoretical analysis of the coal body reflect each index tendency impact failure mechanism, experimental study on the destruction of the coal charge induction and impact orientation of various indicators and different moisture content of coal damage charge induction and impact orientation relationship. The main work done in this paper and innovation are as follows: the analysis of compressive strength and coal fracture mechanism, experimental study of coal charge induced damage relations and compressive strength. The compressive strength is greater That charge decay time is shorter, the accumulated charge is less, but more time unit charge. Analysis of coal dynamic destruction time and the failure mechanism, failure and experimental study of coal charge induced dynamic destruction time. The dynamic failure time is longer, the charge decay time is longer, but the number of charge accumulation. Unit time charge less the amount of coal. Analysis of the impact energy index and the failure mechanism, failure experiment study of coal charge induction and impact energy index. The impact energy index is larger, the charge decay time is shorter, the accumulated charge is less, but more time charge of coal. The elastic energy index and its analysis the failure mechanism, experimental study of coal charge induction and destruction of the elastic energy index. The elastic energy index is larger, the charge decay time is shorter, but the cumulative amount of charge more per unit time The amount of charge more. Experiments under different moisture content of coal damage charge induction and impact orientation relationship. With the increase of water content of each index tends to impact (except dynamic failure time) decreased, charge decay time and charge accumulation increased first and then decreased. The application of the charge induction monitoring technology of coal damage charge induction and impact orientation relationship between the experimental data and reference for the site, has important theoretical and practical significance.

【學(xué)位授予單位】：遼寧工程技術(shù)大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：TD324

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 潘一山;羅浩;唐治;李忠華;趙揚(yáng)鋒;;煤巖體拉伸失穩(wěn)破壞電荷感應(yīng)規(guī)律研究[J];巖石力學(xué)與工程學(xué)報(bào);2013年07期

2 唐治;潘一山;李國臻;趙揚(yáng)鋒;;煤巖摩擦電荷感應(yīng)規(guī)律分析[J];地球物理學(xué)進(jìn)展;2013年02期

3 潘一山;唐治;李忠華;朱麗媛;李國臻;;不同加載速率下煤巖單軸壓縮電荷感應(yīng)規(guī)律研究[J];地球物理學(xué)報(bào);2013年03期

4 趙揚(yáng)鋒;潘一山;羅浩;李國臻;唐巨鵬;;礦井巖石變形破裂電荷感應(yīng)試驗(yàn)研究[J];中國安全科學(xué)學(xué)報(bào);2012年10期

5 潘一山;唐治;李國臻;趙揚(yáng)鋒;;不同溫度下巖石電荷感應(yīng)試驗(yàn)[J];煤炭學(xué)報(bào);2012年10期

6 潘一山;趙揚(yáng)鋒;李國臻;;沖擊地壓預(yù)測的電荷感應(yīng)技術(shù)及其應(yīng)用[J];巖石力學(xué)與工程學(xué)報(bào);2012年S2期

7 羅浩;潘一山;趙揚(yáng)鋒;肖曉春;李國臻;;基于電荷監(jiān)測技術(shù)預(yù)測礦山動力災(zāi)害試驗(yàn)研究[J];中國安全科學(xué)學(xué)報(bào);2012年08期

8 潘一山;羅浩;肖曉春;趙揚(yáng)鋒;李忠華;;三軸條件下含瓦斯煤力電感應(yīng)規(guī)律的試驗(yàn)研究[J];煤炭學(xué)報(bào);2012年06期

9 蔡武;竇林名;韓榮軍;張國華;李許偉;;基于損傷統(tǒng)計(jì)本構(gòu)模型的煤層沖擊傾向性研究[J];煤炭學(xué)報(bào);2011年S2期

10 姚精明;閆永業(yè);李生舟;姚俊偉;王雄;;煤層沖擊傾向性評價損傷指標(biāo)[J];煤炭學(xué)報(bào);2011年S2期

相關(guān)博士學(xué)位論文 前3條

1 趙揚(yáng)鋒;煤巖變形破裂電荷感應(yīng)規(guī)律的研究[D];遼寧工程技術(shù)大學(xué);2010年

2 宋曉艷;煤巖物性的電磁輻射響應(yīng)特征與機(jī)制研究[D];中國礦業(yè)大學(xué);2009年

3 潘一山;沖擊地壓發(fā)生和破壞過程研究[D];清華大學(xué);1999年

相關(guān)碩士學(xué)位論文 前1條

1 胡大江;煤巖損傷特性及沖擊地壓的研究[D];重慶大學(xué);2002年

，

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