本文選題：沿空巷道 + 圍巖穩(wěn)定性控制��； 參考：《山東科技大學》2017年碩士論文

【摘要】：本論文以彭莊煤礦1301泄水巷為工程背景,通過應用現(xiàn)場調研分析、理論分析、計算機數(shù)值分析、現(xiàn)場應用監(jiān)測等方法,研究了深井沿空巷道復合錨網(wǎng)支護技術。首先從沿空巷道圍巖變形破壞特征入手,對采空區(qū)和巷道上覆巖層結構的力學模型作了分析,明確了上覆巖層破斷后形成的弧形三角塊結構的穩(wěn)定性對巷道穩(wěn)定性的決定作用,還分析了巷道變形在采煤工作面在回采過程中的不同階段的特點;其次,探討了沿空留小煤柱掘巷的可行性,根據(jù)合理煤柱寬度的確定原則,以及和其他礦區(qū)沿空巷道條件的比較,得出了留4.5m小煤柱掘巷可行的結論;第三,介紹了高強高預應力讓壓錨桿支護技術,詳細闡述了高強高預應力讓壓錨桿支護作用機理,對錨桿讓壓構件進行了合理的設計,提高了錨桿支護系統(tǒng)的支護效率;第四,根據(jù)1301泄水巷礦壓顯現(xiàn)規(guī)律,并借助計算機數(shù)值模擬軟件,理論計算確定了支護方案及支護參數(shù);第五,為了保證1301泄水巷頂板支護試驗成功,對錨桿的性能進行了井下測試,錨桿系統(tǒng)(桿體、托盤、螺紋、螺母、樹脂)的整體表現(xiàn)良好,滿足了巷道支護要求。文章的最后綜合分析了 1301泄水巷整體支護效果,通過對泄水巷的頂、底板和兩幫的位移的觀測,可以得出泄水巷圍巖變形在可接受的科學范圍之內,達到了支護預期目標。論文中的支護方案及支護參數(shù)科學合理,很好地解決了彭莊煤礦泄水巷的安全支護問題,降低了煤礦生產成本,提高了煤礦生產效率,也為相鄰采區(qū)和類似礦井的支護提供一種方法和思路。
[Abstract]:Based on the engineering background of 1301 drainage roadway in Pengzhuang Coal Mine, the combined bolting and mesh supporting technology of deep goaf roadway is studied by using field investigation and analysis, theoretical analysis, computer numerical analysis, field application monitoring and so on. Starting with the deformation and failure characteristics of surrounding rock in goaf roadway, the mechanical model of overlying rock structure in goaf and roadway is analyzed, and the influence of the stability of arc triangle block structure on roadway stability is made clear. The characteristics of different stages of roadway deformation in the process of mining face are also analyzed. Secondly, the feasibility of driving roadway with small pillar along the gob is discussed, and the principle of determining the reasonable width of coal pillar is discussed. Compared with the conditions of roadway along the goaf in other mining areas, the feasible conclusion of driving roadway with 4.5m small coal pillar is obtained. Thirdly, the supporting technology of high strength and high prestress concession bolt is introduced, and the mechanism of high strength and high prestress concession bolt supporting is expounded in detail. The supporting efficiency of the bolting support system is improved by reasonable design of the pressure-bearing member of the bolt. Fourthly, according to the law of mine pressure appearance in 1301 drainage roadway, and with the help of computer numerical simulation software, the supporting scheme and supporting parameters are calculated and determined theoretically. Fifthly, in order to ensure the success of roof support test in 1301 drainage roadway, the performance of bolt system (bar body, tray, thread, nut and resin) is tested downhole, which meets the requirement of roadway support. At the end of this paper, the overall support effect of 1301 drainage roadway is analyzed synthetically. Through the observation of displacement of roof, bottom plate and two sides of drainage roadway, it can be concluded that the surrounding rock deformation of drainage roadway is within an acceptable scientific range, and the expected goal of supporting is achieved. The supporting scheme and supporting parameters in the paper are scientific and reasonable, which can solve the problem of safe support in Pengzhuang coal mine drainage roadway, reduce the production cost of coal mine, and improve the production efficiency of coal mine. It also provides a method and train of thought for supporting adjacent mining areas and similar mines.
【學位授予單位】：山東科技大學
【學位級別】：碩士
【學位授予年份】：2017
【分類號】：TD353

【參考文獻】

相關期刊論文 前10條

1 丁向勇;師勇;胡永江;李潤芝;;單一厚煤層煤巷支護研究[J];煤炭技術;2016年06期

2 Qi Fangkun;Zhou Yuejin;Li Jiawei;Wang Erqian;Cao Zhengzheng;Li Ning;;Top-coal deformation control of gob-side entry with narrow pillars and its application for fully mechanized mining face[J];International Journal of Mining Science and Technology;2016年03期

3 Li Huamin;Syd Peng;Li Huigui;Xu Yongxiang;Yuan Ruifu;Yue Shuaishuai;Li Kun;;Trial of small gateroad pillar in top coal caving longwall mining of large mining height[J];International Journal of Mining Science and Technology;2016年01期

4 Wang Xiangyu;Bai Jianbiao;Wang Ruofan;Sheng Wenlong;;Bearing characteristics of coal pillars based on modified limit equilibrium theory[J];International Journal of Mining Science and Technology;2015年06期

5 陳才賢;蘇靜;湯鑄;李文斌;;留窄煤柱沿空掘巷在突出煤層中的應用研究[J];礦業(yè)安全與環(huán)保;2015年05期

6 王虎勝;黃肖;席朝東;楊亞峰;賀沖沖;劉斌慧;;窄煤柱綜放回采巷道圍巖穩(wěn)定性分析及控制技術[J];中國煤炭;2015年09期

7 侯化強;宗西華;郭營;張大強;孫小康;;近距離煤層回采巷道圍巖破裂特征探測研究[J];科技視界;2014年23期

8 朱精華;陳勇;陳慶豐;李劍鋒;常葵艷;;深井軟巖高應力區(qū)大型硐室支護探索[J];科技與企業(yè);2014年12期

9 樊殿鑫;;強壓力顯現(xiàn)回采巷道高預應力支護技術[J];中小企業(yè)管理與科技(上旬刊);2014年05期

10 張寶金;;煤礦采區(qū)巷道測量方法[J];黑龍江科技信息;2014年10期

相關碩士學位論文 前3條

1 楊曉毅;六道江煤礦松軟煤巷錨網(wǎng)索支護技術研究[D];遼寧工程技術大學;2011年

2 郭克寶;深部解放層巷道預應力耦合支護技術研究[D];山東科技大學;2007年

3 張偉;深井高應力軟巖巷道支護技術實驗研究[D];山東科技大學;2007年

，

本文編號：1962315