【摘要】：頂板高位鉆孔是治理采空區(qū)瓦斯的有效技術(shù)手段之一,利用隨鉆測(cè)量定向鉆進(jìn)技術(shù)施工頂板高位定向鉆孔可顯著改善采空區(qū)瓦斯治理效果和經(jīng)濟(jì)效果。針對(duì)當(dāng)前頂板高位定向鉆孔鉆進(jìn)深度淺、鉆進(jìn)效率低和安全措施不夠等問題,研制了大功率定向鉆進(jìn)裝備、優(yōu)化了鉆進(jìn)成孔工藝方案和擴(kuò)孔鉆具級(jí)配、開發(fā)了復(fù)合定向鉆進(jìn)技術(shù)和大直徑擴(kuò)孔技術(shù)等,形成了完整配套的定向鉆進(jìn)技術(shù)與裝備�，F(xiàn)場(chǎng)試驗(yàn)施工的大直徑頂板高位定向長(zhǎng)鉆孔孔徑達(dá)到153mm,孔深達(dá)到1026m,先導(dǎo)孔鉆進(jìn)效率大于41m/班。試驗(yàn)結(jié)果表明,研究的鉆進(jìn)技術(shù)和裝備滿足大直徑頂板高位定向長(zhǎng)鉆孔實(shí)鉆深度、直徑和速度的需要,可用于大型工作面的采空區(qū)瓦斯抽采治理,對(duì)煤礦安全高效開采意義重大。
[Abstract]:High roof drilling is one of the effective techniques to control gas in goaf. Using directional drilling while drilling can significantly improve the effect and economic effect of gas treatment in goaf. Aiming at the problems of shallow drilling depth, low drilling efficiency and insufficient safety measures at present, the high power directional drilling equipment is developed, and the drilling process scheme and drilling tool grading are optimized. The combined directional drilling technology and the large diameter reaming technology were developed, which formed a complete set of directional drilling technology and equipment. The drilling efficiency of pilot hole is higher than that of 41m/ class. The hole diameter of large diameter roof is 153mm and the depth of hole is 1026m. The test results show that the drilling technology and equipment studied can meet the needs of the deep, diameter and velocity of the large diameter roof high position directional long drilling hole, and can be used for the gas drainage treatment in the large goaf of the working face. It is of great significance to the safe and efficient mining of coal mines.
【作者單位】： 西安科技大學(xué)建筑與土木工程學(xué)院;中煤科工集團(tuán)西安研究院有限公司;
【基金】："十二五"國(guó)家科技重大專項(xiàng)項(xiàng)目(2011ZX05041-001) 陜西省2014年科技統(tǒng)籌創(chuàng)新工程計(jì)劃項(xiàng)目(2014KTCL03-14)
【分類號(hào)】：TD712.6

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