發(fā)布時(shí)間：2018-02-25 22:27

  本文關(guān)鍵詞： 采動(dòng)裂隙 橢拋帶 模擬實(shí)驗(yàn) 高抽巷 層位布置　出處：《西安科技大學(xué)》2013年碩士論文　論文類型：學(xué)位論文

【摘要】：針對(duì)采動(dòng)覆巖裂隙演化規(guī)律的研究對(duì)于高位瓦斯抽放巷的層位布置尤為關(guān)鍵，將高抽巷層位布置在瓦斯運(yùn)移的裂隙通道中，有利于高抽巷更好的抽采瓦斯。本文在總結(jié)分析前人研究的基礎(chǔ)之上，通過運(yùn)用相似模擬實(shí)驗(yàn)、數(shù)值模擬實(shí)驗(yàn)及現(xiàn)場(chǎng)實(shí)測(cè)冒落帶高度等方法，以大佛寺煤礦40108工作面的覆巖結(jié)構(gòu)為原型，在采動(dòng)覆巖裂隙演化規(guī)律研究的基礎(chǔ)上進(jìn)一步分析了高抽巷在抽放瓦斯中的合理應(yīng)用。 本文通過理論分析，闡述了采動(dòng)裂隙橢拋帶為瓦斯的儲(chǔ)集和運(yùn)移提供了空間和通道；通過實(shí)驗(yàn)分析，揭示隨采動(dòng)的影響裂隙產(chǎn)生發(fā)展的時(shí)空規(guī)律及隨著工作面的逐步推進(jìn)，，受采動(dòng)影響的覆巖裂隙形成似橢拋帶的動(dòng)態(tài)空間。綜合相似模擬實(shí)驗(yàn)、數(shù)值模擬實(shí)驗(yàn)、理論分析及現(xiàn)場(chǎng)實(shí)測(cè)的結(jié)果，獲得了采場(chǎng)覆巖冒落帶的高度�；诟叱橄锍椴赏咚箼C(jī)理，以大佛寺煤礦40108工作面的實(shí)際情況及高抽巷抽采數(shù)據(jù)為基礎(chǔ)，通過分析高抽巷與煤層頂板不同距離下的抽采混合流量、抽采負(fù)壓、抽采瓦斯?jié)舛�、抽采瓦斯純量、高抽巷中CO濃度、高抽巷中CO純量的關(guān)系，并考慮到高抽巷層位高度對(duì)采空區(qū)遺煤自燃的影響，將高抽巷的終孔層位布置在覆巖采動(dòng)卸壓裂隙帶內(nèi)，這樣不僅能夠提高瓦斯抽放率及瓦斯抽放濃度，獲得良好的抽放效果，從而實(shí)現(xiàn)了該工作面瓦斯防治的安全要求。
[Abstract]:According to the layout layer of overlying strata fracture evolution law of mining in high gas drainage roadway is particularly critical, the roadway layout of fissures in Gao Chou gas migration, is conducive to better the high drainage roadway drainage gas. Based on the analysis of previous studies, through the simulation experiment, numerical simulation experiment and field measurement of the height of caving zone method in Dafosi Coal Mine 40108 working face overburden structure as the prototype, based on the law of overburden mining induced fracture on further analysis of the high drainage roadway drainage in reasonable application in gas.
This paper describes the mining fissure elliptic paraboloid provides space and channel for gas storage and transport; through the experimental analysis, reveal the effect of temporal and spatial distribution characteristics of fractures with mining development and with the working face advance gradually, by rock influences the formation of the quasi elliptic paraboloid zone dynamic space mining dynamic. A comprehensive simulation experiment, numerical simulation experiments, the results of theoretical analysis and field measurement, the overburden rock caving zone height. The roadway gas drainage mechanism based on the actual situation in Dafosi Coal Mine 40108 working face and high drainage roadway data as the foundation, through the analysis of high pumping lane with the roof of coal seam under different distances and drainage mixed flow, vacuum extraction, gas extraction concentration, gas drainage quantity of pure, high concentration of CO pumping lane, the relationship between high pumping Lane CO scalar, and considering the high drainage roadway layer height on goaf coal spontaneous The influence of combustion is to arrange the final hole level in the high pressure drainage roadway in the overburden and pressure relief fractured zone, so that not only can improve the gas drainage rate and gas drainage concentration, but also achieve good drainage effect, so as to achieve the safety requirements for gas control in the working face.

【學(xué)位授予單位】：西安科技大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2013
【分類號(hào)】：TD325;TD712

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 張英華;尹根成;黃志安;;近距離高瓦斯煤層群傾斜高抽技術(shù)的應(yīng)用研究[J];北京科技大學(xué)學(xué)報(bào);2006年03期

2 ;COAL GAS DYNAMICS AND ITS APPLICATIONS[J];Scientia Geologica Sinica;1994年01期

3 梁運(yùn)培;鄰近層卸壓瓦斯越流規(guī)律的研究[J];礦業(yè)安全與環(huán)保;2000年01期

4 余楚新,鮮學(xué)福,譚學(xué)術(shù);煤層瓦斯流動(dòng)理論及滲流控制方程的研究[J];重慶大學(xué)學(xué)報(bào)(自然科學(xué)版);1989年05期

5 趙德深,朱廣軼,劉文生,范學(xué)理;覆巖離層分布時(shí)空規(guī)律的實(shí)驗(yàn)研究[J];遼寧工程技術(shù)大學(xué)學(xué)報(bào)(自然科學(xué)版);2002年01期

6 程遠(yuǎn)平,俞啟香,袁亮;上覆遠(yuǎn)程卸壓巖體移動(dòng)特性與瓦斯抽采技術(shù)[J];遼寧工程技術(shù)大學(xué)學(xué)報(bào);2003年04期

7 梁棟，黃元平;采動(dòng)空間瓦斯運(yùn)動(dòng)的雙重介質(zhì)模型[J];阜新礦業(yè)學(xué)院學(xué)報(bào)(自然科學(xué)版);1995年02期

8 李樹剛,錢鳴高;我國(guó)煤層與甲烷安全共采技術(shù)的可行性[J];科技導(dǎo)報(bào);2000年06期

9 尹增德,蔣金泉,張殿振,姜領(lǐng)發(fā);深井傾斜煤層覆巖破壞分帶探測(cè)研究[J];礦山壓力與頂板管理;2001年04期

10 郭玉森;林柏泉;吳傳始;;圍巖裂隙演化與采動(dòng)卸壓瓦斯儲(chǔ)運(yùn)的耦合關(guān)系[J];采礦與安全工程學(xué)報(bào);2007年04期

本文編號(hào)：1535416