煤炭技术
煤炭技術
매탄기술
Coal Technology
2015年
11期
74-75,76
,共3页
冻结管%下沉困难%钻孔轨迹%地层产状%岩性%水泥浆置换
凍結管%下沉睏難%鑽孔軌跡%地層產狀%巖性%水泥漿置換
동결관%하침곤난%찬공궤적%지층산상%암성%수니장치환
frozing pipe%difficulty of sinking%trajectory of borehole%attitude of stratum%properties of rock%replacement of slurry
从钻孔轨迹、地质因素及水泥浆置换3个方面，结合施工过程中收集的具体资料，对内蒙古白家海子矿井中央进风井冻结管下放困难的问题进行了深入探讨。结果表明：定向拐点、钻孔方位角、地层产状和岩性以及水泥浆液对沉管困难均有影响，然而其主控影响机制为670~690 m层位的泥岩遇水膨胀致使钻孔缩径。
從鑽孔軌跡、地質因素及水泥漿置換3箇方麵，結閤施工過程中收集的具體資料，對內矇古白傢海子礦井中央進風井凍結管下放睏難的問題進行瞭深入探討。結果錶明：定嚮枴點、鑽孔方位角、地層產狀和巖性以及水泥漿液對沉管睏難均有影響，然而其主控影響機製為670~690 m層位的泥巖遇水膨脹緻使鑽孔縮徑。
종찬공궤적、지질인소급수니장치환3개방면，결합시공과정중수집적구체자료，대내몽고백가해자광정중앙진풍정동결관하방곤난적문제진행료심입탐토。결과표명：정향괴점、찬공방위각、지층산상화암성이급수니장액대침관곤난균유영향，연이기주공영향궤제위670~690 m층위적니암우수팽창치사찬공축경。
Has carried a deep discussion about which factors lead to the problem that the difficulty on sinking of the frozing pipe in Baijiahaizi coal mine of Inner Mongolia from the trajectory of borehole, the geological factors and the replacement of slurry. The result shows that the directional inflection point, the drilling azimuth, the attitude of stratum and properties of rock and cement grout all have an influence on sinking of frozing pipe of course, the main controling effect mechanism is that the mudstone of 670~690 meters react with water and lead to reduce the diameter of borehole.
