E21D11/15 - CPC Classification Index

ClassID:

136048 ⎘

E21D11/15 - 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 Plate linings; Laggings, i.e. linings designed for holding back formation material or for transmitting the load to main supporting members

Sub-classes:

E21D11/152 » {Laggings made of grids or nettings} 26
E21D11/155 » {Laggings made of strips, slats, slabs or sheet piles } 11
E21D11/157 » {Laggings making use of fluid cushions, e.g. the fluid containing a hardenable material } 0

Recent Application in this class:

20220010680

2022-01-13

Multi-functional intelligent tunneling apparatus and method for simulating partial excavation of tunnel

20190381344

2019-12-19

Fire Protection Boards And Structures Protected By Such Boards

20190360334

2019-11-28

Intelligent and flexible steel arch protection device for rockfall and collapse of tunnels

20160290135

2016-10-06

Protective element, concrete element, and method for producing a concrete element

20120301224

2012-11-29

Protective element, concrete element, and method for producing a concrete element