【摘要】：羊場(chǎng)灣煤礦1306孤島工作面運(yùn)輸巷受頂板強(qiáng)烈動(dòng)載擾動(dòng)作用發(fā)生巷道沖擊地壓,通過現(xiàn)場(chǎng)調(diào)研、理論分析、微震監(jiān)測(cè)和數(shù)值模擬等手段,對(duì)動(dòng)靜載疊加作用對(duì)巷道圍巖的影響進(jìn)行了研究。基于微震監(jiān)測(cè)系統(tǒng)對(duì)沖擊地壓發(fā)生期間頂板大能量震動(dòng)事件定位為依據(jù),根據(jù)具體地質(zhì)條件應(yīng)用數(shù)值模擬方法建模分析了不同強(qiáng)度動(dòng)載擾動(dòng)作用下巷道圍巖應(yīng)力和位移演化規(guī)律。研究結(jié)果表明,隨著動(dòng)載震源與巷道距離的增加,巷道頂?shù)装迨艿降挠绊懶Ч眲∷p,而兩幫受到的影響效果成比例下降。
[Abstract]:The rock burst occurred in the transport roadway of 1306 isolated working face of Yangchangwan Coal Mine under the action of strong dynamic load disturbance of roof. Through field investigation, theoretical analysis, microseismic monitoring and numerical simulation, the influence of dynamic and static load superposition on the surrounding rock of roadway was studied. Based on the location of magnitude vibration events, the stress and displacement evolution of surrounding rock under different intensity of dynamic load disturbance are modeled and analyzed by numerical simulation method according to specific geological conditions. The sound effect decreased proportionally.
【作者單位】： 瓦斯災(zāi)害監(jiān)控與應(yīng)急技術(shù)國家重點(diǎn)實(shí)驗(yàn)室;中煤科工集團(tuán)重慶研究院有限公司;中國礦業(yè)大學(xué)(北京)資源與安全工程學(xué)院;
【基金】：“十三五”重點(diǎn)研發(fā)計(jì)劃(2016YFC0801404) 中國煤炭科工集團(tuán)科技創(chuàng)新基金計(jì)劃(2013ZD002)
【分類號(hào)】：TD324
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本文編號(hào)：2175663