E21D11/00 - CPC Classification Index

ClassID:

136030 ⎘

E21D11/00 - 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

Sub-classes:

E21D11/003 » {Linings or provisions thereon, specially adapted for traffic tunnels, e.g. with built-in cleaning devices } 14
E21D11/006 » {Lining anchored in the rock } 33
E21D11/02 » Lining predominantly with wood 1
E21D11/04 » Lining with building materials 13
E21D11/14 » Lining predominantly with metal 5
E21D11/38 » Waterproofing ; Heat insulating; Soundproofing; Electric insulating 35
E21D11/40 » Devices or apparatus specially adapted for handling or placing units of linings for tunnels or galleries 39

Recent Application in this class:

20260055704

2026-02-26

FABRICATED UNDERGROUND ENGINEERING BUFFER LAYER SUPPORT STRUCTURE

20230032471

2023-02-02

Tunnel profile element

20200307020

2020-10-01

Pipe lining system and method

20200277855

2020-09-03

Tunnel profile element

20200217200

2020-07-09

Frost-resistant assembled initial support structure of tunnel and construction method thereof

20180252104

2018-09-06

Tunnel construction method using pre-support and post-support and apparatus suitable for same

20180202291

2018-07-19

Fractured roof 110 mining method entry-side anti-collapsed structure

20170369374

2017-12-28

Annular fill compressible grout mix for use behind pre-cast concrete segment installed in time-dependent deformation tunnels

20170248018

2017-08-31

Method of preventing leakage of air inside underground cavern

#10

20170198581

2017-07-13

HIGHWALL MINING EQUIPMENT RETRIEVAL AND EXTRACTION APPARATUS

#11

20160101942

2016-04-14

CONTAINMENT SYSTEMS AND METHODS WITH REDUCED FRICTION

#12

20160101941

2016-04-14

Gas containment system

#13

20150339607

2015-11-26

Methods and apparatus for facilitating locate and marking operations

#14

20150225173

2015-08-13

Tunneled gas storage

#15

20140356072

2014-12-04

MINE SHAFT LINER PLATE SYSTEM AND METHOD

#16

20140327293

2014-11-06

Free-wheeling-resistant rolls for mining roof support and the combination of a mining machine and such rolls

#17

20140301787

2014-10-09

Mine seal and method of construction for high resistance to transverse loads

#18

20130336721

2013-12-19

FLUID STORAGE IN COMPRESSED-GAS ENERGY STORAGE AND RECOVERY SYSTEMS

#19

20130108377

2013-05-02

Free-wheeling-resistant rolls for mining roof support and the combination of a mining machine and such rolls

#20

20120213590

2012-08-23

Mine shaft liner plate system and method

#21

20100147142

2010-06-17

Shrapnel and projectile containment systems and equipment and methods for producing same

#22

20100088135

2010-04-08

Methods and apparatus for analyzing locate and marking operations with respect to environmental landmarks

#23

20100042381

2010-02-18

Stress, geologic, and support analysis methodology for underground openings

#24

20090293374

2009-12-03

Frameless space structure

#25

20080315665

2008-12-25

APPARATUS FOR ASSEMBLING A LINER

#26

20080097043

2008-04-24

Surface Support Method

#27

20080092730

2008-04-24

Shrapnel and projectile containment systems and equipment and methods for producing same

#28

20080015310

2008-01-17

Surface Support Method

#29

20070236075

2007-10-11

Apparatus for assembling a liner

#30

20070084555

2007-04-19

Apparatus for and method of lining passageways

#31

20060099034

2006-05-11

Sprayable mining liner

#32

20050179307

2005-08-18

Recovery head with track seal

#33

18426886

2024-06-11

Method and system for non-destructive testing of tunnel lining