Shield support without front beam of shield support and withdrawing method

The invention discloses a shield support without a front beam of the shield support and a withdrawing method and relates to a shield hydraulic support and a withdrawing method by means of the shield support. The invention aims to solve the problem that an existing shield hydraulic bracket needs to b...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	QIN XIANLI, LIU ZHIJUN, LIU GANG, HAO CHUANBO, JIANG YUANNAN, XIAO FUKUN
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	EARTH DRILLING FIXED CONSTRUCTIONS GALLERIES LARGE UNDERGROUND CHAMBERS MINING SHAFTS TUNNELS
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