Band iron for welding trench stent of express highway tunnel

The utility model provides a flat iron for supports of highway tunnels and trenches, which comprises two -50*5 galvanized flat irons and a -40*4 galvanized flat iron with length of 125mm. the two -50*5 galvanized flat irons are initially butt-welded, then the -40*4 galvanized flat iron with length o...

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Bibliographic Details
Main Authors YANG GUANGQI, ZHANG HAITAO, DENG HAITAO, YOU SANWEI, HUANG ZHENGJUN
Format Patent
LanguageChinese
English
Published 15.10.2008
Subjects
BASIC ELECTRIC ELEMENTS
BLASTING
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
CURRENT COLLECTORS
ELECTRICITY
ENGINEERING ELEMENTS AND UNITS
GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS
GENERATION
HEATING
INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINEDOPTICAL AND ELECTRIC CABLES OR LINES
JOINTS OR FITTINGS FOR PIPES
LIGHTING
LINE CONNECTORS
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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Summary:The utility model provides a flat iron for supports of highway tunnels and trenches, which comprises two -50*5 galvanized flat irons and a -40*4 galvanized flat iron with length of 125mm. the two -50*5 galvanized flat irons are initially butt-welded, then the -40*4 galvanized flat iron with length of 125mm is covered on the two flat irons, and two surfaces of the flat iron and the two -50*5 flat irons in the lapping direction respectively remain a space of 5mm. Therefore, not only welding index can be met and welding is sped up without restriction of landform, but also construction technique is simple and feasible and labor intensity can be effectively decreased.
Bibliography:Application Number: CN20072187632U