本文關(guān)鍵詞： 煤礦井下 斷層探測(cè) 定向鉆進(jìn) 分支孔　出處：《西安科技大學(xué)》2017年碩士論文　論文類型：學(xué)位論文

【摘要】：斷層作為煤礦一種常見的地質(zhì)構(gòu)造體,嚴(yán)重影響著礦井的安全生產(chǎn),如何準(zhǔn)確地對(duì)斷層產(chǎn)狀作出探測(cè),已成為煤礦領(lǐng)域研究的一個(gè)重要課題。目前,煤礦所采用的普通鉆進(jìn)方法,由于受技術(shù)條件的限制,主要有探測(cè)距離短、探測(cè)誤差大、鉆孔事故率高、單孔鉆進(jìn)角度單一等缺點(diǎn)。定向鉆進(jìn)技術(shù)作為一種新的鉆探手段,對(duì)以上問題進(jìn)行了充分的彌補(bǔ),且已成功地在多個(gè)工程領(lǐng)域得到應(yīng)用。因此,在煤礦井下斷層的探測(cè)中引進(jìn)定向鉆進(jìn)技術(shù)并總結(jié)出一套適合煤礦領(lǐng)域的鉆進(jìn)設(shè)備就具有重要意義。本論文以孟村煤礦井下DF29斷層探測(cè)為背景,提出采用近水平定向鉆進(jìn)技術(shù),以先進(jìn)的隨鉆測(cè)控技術(shù)為依托,可對(duì)實(shí)鉆鉆孔軌跡進(jìn)行實(shí)時(shí)測(cè)量和精確控制,利用定向鉆孔主孔施工技術(shù)實(shí)現(xiàn)遠(yuǎn)距離超前探查,利用側(cè)鉆分支孔技術(shù)在斷層附近施工多個(gè)角度和方位的分支鉆孔,經(jīng)過軌跡測(cè)量可計(jì)算出地質(zhì)異常體的三維坐標(biāo),從而獲取斷層地質(zhì)空間信息。通過在孟村煤礦井下DF29斷層探測(cè)中的成功應(yīng)用,提出了適合井下斷層探測(cè)的定向孔鉆進(jìn)裝備與機(jī)具,給出了鉆孔結(jié)構(gòu)及軌跡設(shè)計(jì)理論依據(jù),總結(jié)了一套鉆孔成孔工藝與鉆孔事故預(yù)防及處理工藝技術(shù),為礦井其余斷層乃至彬長礦區(qū)其他煤礦斷層超前探測(cè)中應(yīng)用提供一個(gè)全新的理念。
[Abstract]:As a common geological structure in coal mine, fault seriously affects the safety of mine production. How to accurately detect the occurrence of faults has become an important research topic in the field of coal mine. Because of the limitation of technical conditions, the common drilling methods used in coal mine mainly have the disadvantages of short detection distance, large detection error, high drilling accident rate, single drilling angle and so on. Directional drilling technology is a new drilling method. The above problems have been fully remedied, and have been successfully applied in many engineering fields. It is of great significance to introduce directional drilling technology in fault detection of underground coal mine and summarize a set of drilling equipment suitable for coal mine. Based on DF29 fault detection in Mengcun coal mine, this paper proposes to adopt near-horizontal directional drilling technology. Based on the advanced measurement and control technology while drilling, the real drilling track can be measured and accurately controlled in real time, and the directional drilling main hole construction technology can be used to realize long distance ahead exploration. The sidetracking branch hole technique is used to construct many angle and azimuth branch boreholes near the fault. The 3D coordinates of the geological anomaly body can be calculated by trajectory measurement. Through the successful application of DF29 fault detection in Mengcun coal mine, the directional hole drilling equipment and tools suitable for downhole fault detection are put forward, and the theoretical basis of drilling structure and trajectory design is given. This paper summarizes a set of drilling hole forming technology and borehole accident prevention and treatment technology, which provides a new idea for the application of other faults in coal mine and other coal mine faults in Binchang mining area.
【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】：2017
【分類號(hào)】：TD166

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