Key technology and equipment of borehole-controlled grouting for highly effective plugging large channel of water inrush

In order to solve the common problems like large quantities of work amount, long work project delay and secondary disaster during large channel water inrush plugging, the author invented a special drilling rig, textile capsule, developed and used quick-setting high strength grouting material and borehole-controlled grouting technology. The author provided a new idea of using special borehole-controlled drilling tools to put the textile capsule and applying the quick- setting high strength grouting material to plug the large channel of flowing water. A new grouting process, key technology and matching equipment for plugging water inrush channel have been achieved. By field application, this whole set of technology is highly efficient, reliable and economical.