External drainage structure for concealed box culvert

The utility model relates to an external drainage structure for a concealed box culvert. The utility model aims to provide an external drainage structure for a concealed box culvert, which is reasonable in structure and convenient to construct, and can ensure the stability of a backfill soil body an...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	YU XUESONG, BAO LIFA, CHEN PENG
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	EMBANKMENTS EXCAVATIONS FIXED CONSTRUCTIONS FOUNDATIONS HYDRAULIC ENGINEERING SOIL SHIFTING UNDERGROUND OR UNDERWATER STRUCTURES
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