本文關(guān)鍵詞： “三軟”厚煤層 虛心旋采 旋轉(zhuǎn)開(kāi)采 數(shù)值模擬　出處：《安徽理工大學(xué)》2015年碩士論文　論文類(lèi)型：學(xué)位論文

【摘要】：“三軟”煤層開(kāi)采中出現(xiàn)的煤壁片幫、支架鉆底、頂板冒落等重大危害,至今仍制約著“三軟”煤層的安全高效開(kāi)采。尤其是在近距離采空區(qū)下進(jìn)行旋轉(zhuǎn)回采時(shí),由于回采巷道和周?chē)_(kāi)采條件的變化,導(dǎo)致工作面不僅片幫現(xiàn)象嚴(yán)重,而且頂板冒落現(xiàn)象也經(jīng)常出現(xiàn)。 本文以淮南礦業(yè)集團(tuán)潘北礦12124綜采工作面的旋轉(zhuǎn)開(kāi)采段為工程背景。利用FLAC3D數(shù)值模擬軟件對(duì)所研究的內(nèi)容建立了數(shù)值模型,分析了旋采階段的礦壓特征等問(wèn)題。結(jié)合工作面地質(zhì)條件和機(jī)械設(shè)備的特點(diǎn),對(duì)比分析了工作面實(shí)心和虛心旋采兩種方法在工作面回采過(guò)程中對(duì)設(shè)備和頂板控制的影響,確定了虛心旋轉(zhuǎn)開(kāi)采的方法,設(shè)計(jì)了旋轉(zhuǎn)開(kāi)采進(jìn)刀方案。并制定了工作面旋轉(zhuǎn)開(kāi)采時(shí)的操作流程以及工作面設(shè)備管理的方法。為以后類(lèi)似地質(zhì)條件下的煤礦開(kāi)采問(wèn)題提供一些參考。
[Abstract]:The great hazards of coal wall slab, support drilling and roof caving in the mining of "three soft" coal seams still restrict the safe and efficient mining of the "three soft" coal seams, especially in the process of rotary mining under the close goaf. Because of the change of mining conditions in the roadway and surrounding, the phenomenon of not only the roof but also the roof caving often appears in the working face. Based on the rotary mining section of 12124 fully mechanized mining face in Panbei Coal Mine of Huainan Mining Group, a numerical model is established by using FLAC3D software. In this paper, the characteristics of mine pressure in the stage of rotary mining are analyzed. Combined with the geological conditions of the working face and the characteristics of the mechanical equipment, the influence of the two methods of solid and open rotary mining on the control of the equipment and the roof in the mining process of the working face is compared and analyzed. The method of open-center rotary mining is determined. The feed scheme of rotary mining is designed, and the operation flow and the management method of working face equipment are worked out, which provides some references for the mining problems under similar geological conditions in the future.
【學(xué)位授予單位】：安徽理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類(lèi)號(hào)】：TD823

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 戴華陽(yáng);易四海;鞠文君;閻躍觀;楊世杰;喬中棟;;急傾斜煤層水平分層綜放開(kāi)采巖層移動(dòng)規(guī)律[J];北京科技大學(xué)學(xué)報(bào);2006年05期

2 員東風(fēng),伍永平;大傾角煤層綜采工作面調(diào)偽仰斜原理與方法[J];遼寧工程技術(shù)大學(xué)學(xué)報(bào)(自然科學(xué)版);2001年02期

3 劉日成;李金海;徐春超;李曉彬;;不規(guī)則綜采工作面旋轉(zhuǎn)開(kāi)采實(shí)踐[J];遼寧工程技術(shù)大學(xué)學(xué)報(bào)(自然科學(xué)版);2012年05期

4 馬立同,郭海書(shū),王書(shū)江;復(fù)雜條件下綜采旋轉(zhuǎn)開(kāi)采工藝研究及應(yīng)用[J];河北煤炭;2003年03期

5 袁尚良;;大傾角特厚煤層綜采工作面礦壓顯現(xiàn)規(guī)律研究[J];河北煤炭;2011年04期

6 丁杰;俯斜一次采全高綜采技術(shù)在張集礦的應(yīng)用[J];淮南職業(yè)技術(shù)學(xué)院學(xué)報(bào);2003年03期

7 伍永平;解盤(pán)石;楊永剛;任世廣;;大傾角煤層群開(kāi)采巖移規(guī)律數(shù)值模擬及復(fù)雜性分析[J];采礦與安全工程學(xué)報(bào);2007年04期

8 劉運(yùn)高,夏書(shū)貴;破碎頂板條件下綜采工作面旋轉(zhuǎn)回采的實(shí)踐[J];徐煤科技;1999年04期

9 王同貞,王利,龔光慶;孤島綜采面旋轉(zhuǎn)開(kāi)采壓力顯現(xiàn)規(guī)律淺析[J];煤炭科技;2004年02期

10 李普紅;劉軍;;復(fù)雜地質(zhì)條件下綜放面旋轉(zhuǎn)縮面回采工藝[J];煤炭科技;2009年01期

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