雙關(guān)鍵層綜放面厚硬覆巖垮落及導(dǎo)水裂隙帶演化分析
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屈少波.雙關(guān)鍵層綜放面厚硬覆巖垮落及導(dǎo)水裂隙帶演化分析[J].西安科技大學(xué)學(xué)報,2024,44(5):880-891.
QU Shaobo.Evolution analysis of thick and hard overburden strata and water-conducting fracture zone in double key layer fully mechanized caving face[J].Journal of Xi’an University of Science and Technology,2024,44(5):880-891.
摘要:為研究雙關(guān)鍵層綜放面厚硬覆巖垮落特征及導(dǎo)水裂隙帶發(fā)育高度,針對某礦首采面頂板“兩帶”發(fā)育高度及頂板水害防治問題,采用物理相似材料模擬、RFPA2D-Strata軟件(巖層分析版)數(shù)值模擬方法,運(yùn)用微震監(jiān)測、應(yīng)力監(jiān)測、聲發(fā)射監(jiān)測等研究工作面煤層回采后頂板覆巖“兩帶”發(fā)育規(guī)律,綜合確定雙關(guān)鍵層綜放面“兩帶”高度。(剩余19196字)