DRILLING DEVICE AND DRILLING METHOD

The device (10) has a drilling element (20) rotatably driven by a drilling drive (16) and moved along rods (12). The drilling element includes an endless screwing drill (22) and an extension (30), where the endless screwing drill is arranged below the drilling drive, and the extension is connected w...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	ERWIN EMIL STOETZER, WERNER JOSEF HARTHAUSER
Format:	Patent
Sprache:	eng ; por
Schlagworte:	EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING EMBANKMENTS EXCAVATIONS FIXED CONSTRUCTIONS FOUNDATIONS HYDRAULIC ENGINEERING MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS SOIL SHIFTING UNDERGROUND OR UNDERWATER STRUCTURES
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Beschreibung
Zusammenfassung:	The device (10) has a drilling element (20) rotatably driven by a drilling drive (16) and moved along rods (12). The drilling element includes an endless screwing drill (22) and an extension (30), where the endless screwing drill is arranged below the drilling drive, and the extension is connected with the endless screwing drill and extends upwards by the drilling drive. A displacement head (40) is arranged between the extension and endless screwing drill, where the extension is formed of a kelly bar with a drive block (32) at an outer side of the drilling element. Independent claims are also included for the following: (1) a drilling method for creating a borehole (2) a method for manufacturing a foundation element.