Abstract:
The “five-aquifer” occurrence conditions of Zhuxianzhuang Coal Mine are complex, and there are some water disaster characteristics such as large static reserves, strong dynamic supply and high water pressure, which seriously threatens the mine safety production. The water damage governance method of “curtain closure and drainage mining” is adopted, and the ground grouting drilling technology is the basis for this method implementation. Combined the technical parameters of geological conditions, drilling technology and grouting technology, the drilling equipment, construction technology, casing solid completion technology and trajectory control technology of ground grouting well are systematically studied, and a set of drilling equipment and key technologies for the ground grouting well of Zhuxianzhuang Coal Mine are formed. The field application shows that the drilling equipment and technology are safe and reliable, energy-saving and environmentally-friendly, the grouting effect is good.