Municipal novel well lid protective device

The invention relates to the technical field of municipal underground engineering inspection well ground equipment, in particular to a municipal novel well lid protective device. The municipal novel well lid protective device comprises a lid seat fixed to a road, a well lid hinged to the lid seat, a...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	CAI HANQI, CHEN XUMEI, CHEN XIAOHUA, ZHANG JUNTAO, CAI SUQI
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	EMBANKMENTS EXCAVATIONS FIXED CONSTRUCTIONS FOUNDATIONS HYDRAULIC ENGINEERING SOIL SHIFTING UNDERGROUND OR UNDERWATER STRUCTURES
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