Abstract: The invention relates to a method for the chisel-less formation of boreholes for deep bores by means of high-pressure water jet cutting. A chisel-free drilling method that makes substantially continuous drilling operation possible is characterized, according to the invention, by a combination of the processes of high-pressure water jet cutting and high-frequency rock fragmentation. The invention also relates to a chisel-free drilling system for carrying out the method.
Abstract: The invention relates to a method for lining boreholes for deep bores. A lining method, which makes a rapid process sequence possible with a substantially uniform borehole diameter, is characterized, according to the invention, in that the borehole is lined directly after boring with a hybrid material consisting of a fibrous material and a hardenable medium. The invention also relates to a device for carrying out the method.
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