Steel pipe framed bent trolley for secondary lining of tunnel widening section
The utility model relates to a steel pipe framed bent trolley for secondary lining of a tunnel widening section, and belongs to the technical field of expressway tunnel construction. Comprising a trolley, limiting steel bars, vertical pipes, transverse pipes, diagonal bracings, a portal, a formwork,...
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Main Authors | , , , , , , , , , , , |
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Format | Patent |
Language | Chinese English |
Published |
16.08.2022
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Subjects | |
Online Access | Get full text |
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