【摘要】：采用實(shí)驗(yàn)室相似模擬實(shí)驗(yàn)方法對(duì)巷道頂板錨固孔進(jìn)行仿真鉆進(jìn),探究巷道頂板錨固孔鉆進(jìn)動(dòng)力響應(yīng)指標(biāo)(鉆速及轉(zhuǎn)速)與巖石物理力學(xué)性質(zhì)(普氏系數(shù))間的關(guān)系。得出如下結(jié)論:錨固孔的鉆進(jìn)動(dòng)力響應(yīng)指標(biāo)基本上均隨頂板巖石普氏系數(shù)f的增加而減小,實(shí)驗(yàn)數(shù)據(jù)回歸曲線大致呈現(xiàn)負(fù)指數(shù)關(guān)系;據(jù)此一定程度上可實(shí)現(xiàn)對(duì)頂板巖層類型的辨識(shí),進(jìn)而指導(dǎo)并優(yōu)化巷道頂板錨桿支護(hù)初始設(shè)計(jì)與預(yù)防冒頂事故的發(fā)生;動(dòng)力響應(yīng)指標(biāo)與巖石普氏系數(shù)f相關(guān)性較好,如能通過相關(guān)儀器對(duì)響應(yīng)指標(biāo)進(jìn)行實(shí)時(shí)監(jiān)測(cè),對(duì)深入研發(fā)頂板巖層結(jié)構(gòu)探測(cè)儀器具有重要的參考價(jià)值;論文所用方法,為實(shí)驗(yàn)室?guī)r石鉆進(jìn)試驗(yàn)的研究提供了一種借鑒。
[Abstract]:The relationship between the dynamic response index (drilling speed and speed) and the physical and mechanical properties of rock (prhi coefficient) of the roadway roof anchorage hole is investigated by the simulation experiment method of laboratory similar simulation experiment. The following conclusions are drawn: the drilling dynamic response index of the anchorage hole is basically f with the pric coefficient of the roof rock. The regression curve of the experimental data has a negative exponential relationship, and a certain degree can be used to identify the type of the roof rock, and then to guide and optimize the initial design of the roof bolt support and the prevention of the roof accident; the dynamic response index has a good correlation with the rock prill coefficient F, for example, through the correlator. The real-time monitoring of the response index is of great reference value for the deep research of the roof rock structure detection instrument, and the method used in this paper provides a reference for the study of the rock drilling test in the laboratory.
【作者單位】： 天地科技股份有限公司開采設(shè)計(jì)事業(yè)部;煤炭科學(xué)研究總院開采研究分院;中國(guó)礦業(yè)大學(xué)(北京)資源與安全工程學(xué)院;河南大有能源股份有限公司耿村煤礦;
【基金】：國(guó)家科技支撐計(jì)劃資助項(xiàng)目(2012BAB13B02) 國(guó)家自然科學(xué)資金煤炭聯(lián)合資金重點(diǎn)資助項(xiàng)目(U1261211)
【分類號(hào)】：TD327.2;TD313

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本文編號(hào)：2133523