Sounding pipe protection device

The utility model provides a sounding pipe protection device, include: sounding pipe, the even establishes inside the bored concrete pile for detect through the sound wave the bored concrete pile, theprotection tube is worn to locate inside the sounding pipe, be used for preventing sounding pipe des...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	WANG DIANTAO, LI BAIXI, YANG PEI, HUANG JI, WU TINGKAI, HU YANWEI
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	EMBANKMENTS EXCAVATIONS FIXED CONSTRUCTIONS FOUNDATIONS HYDRAULIC ENGINEERING SOIL SHIFTING UNDERGROUND OR UNDERWATER STRUCTURES
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