| 摘要 |
<p>The invention relates to a method for fusion drilling and to a fusion drilling device for producing dimensionally accurate bores, manholes rock and tunnels in the ground, particularly in rock. A drill hole bottom is molten by a melt and the overburden melt is pressed into the surroundings, particularly the surrounding rock which has cracked open under the effects of the temperature and pressure, and wherein during drilling, a drill hole lagging (9) is produced around piping formed by line elements (1, 2, 3). In a recess (5) of at least one lower line element (1) of the piping, said recess being particularly centric and open towards the top, metal (7) in a solid state of aggregation is fed from the top thereof, particularly through line elements (2, 3) arranged on the top thereof. The metal is molten in said recess (5) by feeding energy and is conducted through channels (6) extending from the recess (5) toward the outside and ending in the lateral surface of a line element (1) into the outer surroundings of the line element (1). A rock melt formed beneath the lowest line element (1) is pressed into the surrounding rock (14) and forms a metal lagging (9) surrounding the piping (1, 2, 3) by solidifying.</p> |
