E21D11/14 - CPC Classification Index

ClassID:

136047 ⎘

E21D11/14 - CPC Classification

Classification description:

Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings , e.g. by assembling Lining predominantly with metal

Sub-classes:

E21D11/15 » Plate linings; Laggings, i.e. linings designed for holding back formation material or for transmitting the load to main supporting members 5
E21D11/18 » Arch members; {Network made of arch members ; Ring elements; Polygon elements; Polygon elements inside arches } 16
E21D11/28 » Longitudinal struts, {i.e. longitudinal connections between adjoining arches} 3
E21D11/30 » Bases for lower arch members 2
E21D11/34 » Joints between vertical props and horizontal top bars 3
E21D11/36 » Linings or supports specially shaped for tunnels or galleries of irregular cross-section 1

Recent Application in this class:

20240052744

2024-02-15

A device and method for adjusting tunnel support force

20210032990

2021-02-04

Method for renovating, repairing, reinforcing, protecting or newly creating corrugated metal-sheet tunnels, and corrugated metal-sheet tunnels of this type

20200003057

2020-01-02

Positioner and positioning method for reinforcing steel bars of tunnel side wall

20190257202

2019-08-22

Helical segmental lining

20150225173

2015-08-13

Tunneled gas storage

18925152

2025-05-20

Feeding device for subway grille main reinforcement conveying