Method for welding and laying large-diameter spiral steel pipes in different geological environments

The invention relates to the technical field of building engineering construction, in particular to a method for welding and laying large-diameter spiral steel pipes in different geological environments. The method comprises the steps of (1) trench excavation, (2) pipeline foundation and foundation...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	HU CHAO, TIAN GUOQING, KONG XIAOWEI, WU JINGZHAO, WU JIA'AO, WU KUN, WU RUONAN, WANG YONG, ZHANG YONGQIANG
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	BLASTING ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING JOINTS OR FITTINGS FOR PIPES LIGHTING MEANS FOR THERMAL INSULATION IN GENERAL MECHANICAL ENGINEERING PIPES SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING THERMAL INSULATION IN GENERAL WEAPONS
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