Method and tool for treating leakage event of secondary grouting hole of shield tunnel

The invention discloses a method and tool for treating a leakage event of a secondary grouting hole of a shield tunnel. The adopted tool structurally comprises a tool base, a first ball valve, a connecting piece, a second ball valve and a grouting pipeline which are connected in sequence, wherein th...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	LUO LIANGQIAN, JIA CHAO, LI DONGBIAO, GUAN XUEFENG, YU HONGLIANG, ZHU LEI, JIANG YUKE
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	EARTH DRILLING FIXED CONSTRUCTIONS GALLERIES LARGE UNDERGROUND CHAMBERS MINING SHAFTS TUNNELS
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