过煤矿采空区定向钻孔施工工艺研究

The construction craft research of directional note thick liquid water shutoff drill hole in the depletion region

煤矿采空区一直是困扰注浆堵水钻孔施工的难题。该文主要阐述了过采空区定向注浆检查钻孔施工中的安全工艺措施,主要包括施工设备机具、定向检查钻孔的结构、过采空区时的安全钻进工艺,采空区内的空间注浆加固处理、注浆套管的封固工艺等。

It always puzzles the construction of the note thick liquid water shutoff drill hole in the depletion region of the coal mine picks. This artide mainly explains the security craft measures of the note thick liquid inspection drill hole construction in the depletion region. It mainly includes the construction machineries, the directional inspection drill hole structure, the safe drilling craft in the depletion region, the note thick liquid reinforcement processing in the space of the depletion region, the craft of sealing the drive pipe solidly and so on.