Impact hammer for cast-in-place pile

The invention relates to an impact hammer for a cast-in-place pile. The impact hammer comprises a hammer body and hammer tooth assemblies; the hammer body comprises a body, a plurality of wing parts and wing feet; the multiple wing parts are all fixedly connected with the body and evenly arranged in...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	TIAN HONGQIANG, TIAN LEI, LIU GANG, XIN GUOSHUN, ZHAO WEICHAO
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING FIXED CONSTRUCTIONS MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS
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