Method for protecting the stability of a hole drilled with continuous or displacement borer over the surface of concrete mixer and the device for execution of such stability

摘要

the way is that after zabetonowaniu hole burning and the anticipated level of concrete outgoing the pala cuts off supply of concrete (4) and drives the core drill stabilising liquid (5), which fills a hole above the level of the gu0142owi cy stake while podciu0105ganiem drill.for mixtures of concrete (4), and then the liquid stabilising (5) serves tru00f3jnik (3) with zasuwu0105, which controls the flow of the liquid (4) or (5) to the core drill.