E21D

SHAFTS

TUNNELS

GALLERIES

LARGE UNDERGROUND CHAMBERS soil-conditioning or soil-stabilising materials C09K17/00; drilling or cutting machines for mining or quarrying E21C; safety devices, transport, rescue, ventilation or drainage E21F

The following IPC groups are not in the CPC scheme. The subject matter for these IPC groups is classified in the following CPC groups:

E21D13/02

covered by

E21D13/00

E21D13/04

covered by

E21D13/00

E21D15/582

covered by

E21D15/58

E21D15/59

covered by E21D15/44, E21D15/58

E21D17/022

covered by

E21D17/02

E21D17/05

covered by E21D17/0206, E21D17/04

E21D17/054

covered by

E21D17/04

E21D19/06

covered by E21D19/02, E21D19/04

In this subclass non-limiting references (in the sense of paragraph 39 of the Guide to the IPC) may still be displayed in the scheme.

E21D1/00

Shafts

E21D1/00

Sinking shafts

E21D1/02

by hand

E21D1/03

mechanically,

e.g. by loading shovels or loading buckets, scraping devices, conveying screws

E21D1/08 takes precedence

E21D1/04

with grabs

boring grabs E21D1/04, E21B27/00; grab buckets for digging in general E02F3/47

E21D1/06

with shaft-boring cutters drilling machines E21B, E21C

E21D1/08

while moving the lining downwards

lowering the lining into a ready shaft E21D5/01; sheet piles E02D5/02

E21D1/10

Preparation of the ground

for galleries or tunnels E21D9/001; improving or preserving foundation soil or rock E02D3/00

E21D1/105

by water level modification

E21D1/12

by freezing

freezing of foundation soil E02D3/115

E21D1/14

Freezing apparatus

E21D1/16

by petrification grouting anchoring-bolts E21D20/02

; consolidating foundation soil by placing solidifying or pore-filling substances in the soil E02D3/12

E21D3/00

Raising shafts, i.e. working upwards from the bottom

E21D5/00

Lining shafts

Linings therefor E21D11/00 takes precedence

; sinking with simultaneous lowering of the lining E21D1/08

E21D5/01

using prefabricated lining lowered into a hole filled with liquid or viscous mass

E21D5/012

Use of fluid-tight or anti-friction material on outside of, or between, lining layers

E21D5/016

Bearer curbs

E21D5/02

with wood E21D5/01, E21D5/012, E21D5/016 take precedence

E21D5/04

with brick, concrete, stone, or similar building materials E21D5/01, E21D5/012, E21D5/016 take precedence

E21D5/06

with iron or steel E21D5/01, E21D5/012, E21D5/016 take precedence

E21D5/08

in the form of profiled parts

E21D5/10

in the form of tubbing

or of rings composed of profile elements

E21D5/11

with combinations of different materials, e.g. wood, metal, concrete E21D5/01, E21D5/012, E21D5/016 take precedence

E21D5/12

Accessories for making shaft linings, e.g. suspended cradles, shutterings

E21D7/00

Shaft equipment, e.g. timbering within the shaft

lifts in hoistways or mines B66B15/00 - B66B19/00

E21D7/005

Determination of shaft lining deformation

E21D7/02

Arrangement of guides for cages in shafts

Connection of guides for cages to shaft walls guideways or guides for elevators B66B7/02

E21D8/00

Shafts not provided for in groups E21D1/00 - E21D7/00

E21D9/00

Tunnels

Galleries

Large underground chambers

Linings therefor galleries protecting against falling rocks or avalanches E01F7/04; pressure galleries, galleries specially adapted to house pressure water conduits E02B9/06; tunnels or galleries specially adapted to house conduits in general E02D29/10; sewers E03F

E21D9/00

Tunnels or galleries, with or without linings

Methods or apparatus for making thereof E02D29/045, E02D29/063 take precedence; linings per se

E21D11/00

Layout of tunnels or galleries

E21D9/001

Improving soil or rock, e.g. by freezing; Injections for sinking shafts E21D1/10; injection of liquids for binding dust E21F5/18; improving or preserving foundation soil or rock E02D3/00; borehole closures, i.e. packers, for use during the injection process E21B33/12

E21D9/002

Injection methods characterised by the chemical composition used

E21D9/003

Arrangement of measuring or indicating devices for use during driving of tunnels, e.g. for guiding machines

E21D9/004

using light beams for direction or position control

E21D9/005

by forcing prefabricated elements through the ground, e.g. by pushing lining from an access pit driving shields E21D9/06

E21D9/006

by making use of blasting methods explosive compositions C06B; blasting per se

F42

E21D9/008

Driving transverse tunnels starting from existing tunnels

E21D9/01

Methods or apparatus for enlarging or restoring the cross-section of tunnels, e.g. by restoring the floor to its original level

E21D9/02

Driving inclined tunnels or galleries

E21D9/03

Driving non-circular tunnels

E21D9/04

Driving tunnels or galleries through loose materials

Apparatus therefor not otherwise provided for

E21D9/005, E21D9/06 take precedence; soil improvement E21D9/001; provisional protective covers E21D19/04

E21D9/06

Making by using a driving shield

, i.e. advanced by pushing means bearing against the already placed lining pushing prefabricated elements through the ground from an access pit E21D9/005

E21D9/0607

the shield being provided with devices for lining the tunnel, e.g. shuttering E21D9/0873, E21D9/0879 take precedence; tail sealing means used as end shuttering E21D9/0635

E21D9/0609

with means for applying a continuous liner, e.g. sheets of plastics, between the main concrete lining and the rock

E21D9/0621

Shield advancing devices

E21D9/0635

Tail sealing means, e.g. used as end shuttering

E21D9/0642

the shield having means for additional processing at the front end

E21D9/065

with devices for provisionally supporting the front face

E21D9/0657

structurally associated with rock crushers

E21D9/0664

with means for applying a coating layer to the front face, e.g. by spraying

E21D9/0671

with means for consolidating the rock in front of the shield by injection of consolidating substances through boreholes

E21D9/0678

Adding additives, e.g. chemical compositions, to the slurry or the cuttings

When classifying in this group, bentonite shall not be classified

E21D9/0685

Foaming agents

E21D9/0692

Cutter drive shields

E21D9/08

with additional boring or cutting means

other than the conventional cutting edge of the shield

E21D9/087

with a rotary drilling-head cutting simultaneously the whole cross-section, i.e. full-face machines

E21D9/0873

the shield being provided with devices for lining the tunnel, e.g. shuttering

E21D9/0874

with rotary drilling heads having variable diameter

E21D9/0875

with a movable support arm carrying cutting tools for attacking the front face, e.g. a bucket

E21D9/0879

the shield being provided with devices for lining the tunnel, e.g. shuttering

E21D9/093

Control of the driving shield

, e.g. of the hydraulic advancing cylinders arrangement of measuring or indicating devices for use during driving of tunnels E21D9/003

E21D9/10

Making by using boring or cutting machines E21D9/08 takes precedence; mining picks E21C35/18

E21D9/1006

with rotary cutting tools for cutting simultaneously the whole cross-section E21D9/11; drill bits E21B10/00

E21D9/1013

on a tool-carrier supported by a movable boom

E21D9/102

by a longitudinally extending boom being pivotable about a vertical and a transverse axis

E21D9/1026

the tool-carrier being rotated about a transverse axis

E21D9/1033

by a transversely extending boom being pivotable about a longitudinal axis

E21D9/104

Cutting tool fixtures devices with percussive tools E21D9/106

E21D9/1046

Vibrating

E21D9/1053

for making a slit along the perimeter of the tunnel profile, the remaining core being removed subsequently, e.g. by blasting

E21D9/106

with percussive tools, e.g. pick-hammers

E21D9/1066

with fluid jets projecting hot gases E21D9/1073; drilling by liquid or gas jets E21B7/18; slitting by liquid jets E21C25/60

E21D9/1073

applying thermal energy, e.g. by projecting flames or hot gases, by laser beams flame drilling E21B7/14

E21D9/108

Remote control specially adapted for machines for driving tunnels or galleries for machines for slitting or completely freeing the mineral E21C35/24

E21D9/1086

Drives or transmissions specially adapted therefor

E21D9/1093

Devices for supporting, advancing or orientating the machine or the tool-carrier measuring devices for guiding machines E21D9/003; anchoring in the borehole E21B4/18

E21D9/11

with a rotary drilling-head cutting simultaneously the whole cross-section, i.e. full-face machines

E21D9/111

by means of heads or tool-carrying sectors implementing an oscillating rotary motion

E21D9/112

by means of one single rotary head or of concentric rotary heads E21D9/111 takes precedence

E21D9/113

having a central part for making a pilot tunnel and a follow-up part for enlarging the pilot tunnel E21D9/115 takes precedence; similar apparatus for enlarging drilled boreholes E21B7/28

E21D9/115

with cutting tools mounted pivotably or slidable on the head

E21D9/116

by means of non-concentric rotary heads E21D9/111 takes precedence

E21D9/117

mounted for orientating or sideways shifting relative to the frame

E21D9/118

with independently driven central head

E21D9/12

Devices for removing or hauling away excavated material or spoil

Working or loading platforms underground transport E21F13/00

E21D9/122

Working or loading platforms underground transport E21F13/00

E21D9/124

Helical conveying means therefor E21D9/13 takes precedence

E21D9/126

Loading devices or installations loading platforms E21D9/122; soil-shifting machines E02F3/00

E21D9/128

Loader-conveyors with gathering arms

E21D9/13

using hydraulic or pneumatic conveying means

E21D9/14

Layout of tunnels or galleries

Constructional features of tunnels or galleries, not otherwise provided for, e.g. portals, day-light attenuation at tunnel openings

E21D11/00

Lining tunnels, galleries or other underground cavities, e.g. large underground chambers

Linings therefor

Making such linings in situ, e.g. by assembling E21D15/00 - E21D23/00 take precedence; specially for shafts E21D5/00;

driving shields in combination with means for lining the tunnel E21D9/06

; lining pressure water galleries, linings therefor E02B9/06

E21D11/003

Linings or provisions thereon, specially adapted for traffic tunnels, e.g. with built-in cleaning devices E21D11/38 takes precedence

E21D11/006

Lining anchored in the rock setting anchoring-bolts E21D20/00; anchoring-bolts E21D21/00

E21D11/02

Lining predominantly with wood

E21D11/03

using timber- setting machines

E21D11/04

Lining with building materials E21D11/02, E21D11/14 take precedence

; compositions of mortars, concrete or like building materials C04B; placing filling-up materials in underground workings E21F15/00

E21D11/05

using compressible insertions

E21D11/06

with bricks

E21D11/07

using brick- laying machines

brick-laying machines per se

E04G21/22

E21D11/08

with preformed concrete slabs

backfilling the space between the slabs and the rock E21D11/105

E21D11/083

Methods or devices for joining adjacent concrete segments

E21D11/086

Methods of making concrete lining segments

E21D11/10

with concrete cast in situ

Shuttering

also lost shutterings, e.g. made of blocks, of metal plates

or other equipment adapted therefor

E21D11/102

Removable shuttering; Bearing or supporting devices therefor

E21D11/105

Transport or application of concrete specially adapted for the lining of tunnels or galleries in building E04F21/08, E04G21/02; Backfilling the space between main building element and the surrounding rock, e.g. with concrete

E21D11/107

Reinforcing elements therefor; Holders for the reinforcing elements

E21D11/12

Temporary supports for use during building

removable shutterings E21D11/102

Accessories

provisional protective covers E21D19/04

E21D11/14

Lining predominantly with metal

backfilling the space between the lining elements and the rock E21D11/105

E21D11/15

Plate linings

Laggings, i.e. linings designed for holding back formation material or for transmitting the load to main supporting members insulation E21D11/38

E21D11/152

Laggings made of grids or nettings

E21D11/155

Laggings made of strips, slats, slabs or sheet piles longitudinal struts for mine arches E21D11/28

E21D11/157

Laggings making use of fluid cushions, e.g. the fluid containing a hardenable material chocks made of flexible containers E21D15/483

E21D11/18

Arch members

; Network made of arch members E21D11/36 takes precedence; Ring elements; Polygon elements; Polygon elements inside arches caps for arches E21D17/00

E21D11/183

Supporting means for arch members, not provided for in E21D11/22

E21D11/186

Pre-stressing or dismantling devices therefor

E21D11/20

Special cross- sections, e.g. corrugated

for props E21D15/502; for caps E21D17/01

E21D11/22

Clamps or other yieldable means for interconnecting adjacent arch members either rigidly, or allowing arch member parts to slide when subjected to excessive pressure

E21D11/24

Knuckle joints or links between arch members

E21D11/26

Shoes for connecting arch members to longitudinal struts

E21D11/28

Longitudinal struts

, i.e. longitudinal connections between adjoining arches

E21D11/30

Bases for lower arch members for props E21D15/54

E21D11/34

Joints between vertical props and horizontal top bars end caps forming part of the props E21D15/54

; retaining plates on caps for engaging the tops of pit-props E21D17/10

E21D11/36

Linings or supports specially shaped for tunnels or galleries of irregular cross-section

E21D11/362

for loading areas lining shafts E21D5/00

E21D11/365

for intersecting galleries

E21D11/367

for junction with the longwall coal face walking supports therefor E21D23/0091

E21D11/38

Waterproofing in general E02D31/00

Heat insulating

Soundproofing

Electric insulating for building constructions in general E04B1/62

E21D11/381

Setting apparatus or devices

E21D11/383

by applying waterproof flexible sheets; Means for fixing the sheets to the tunnel or cavity wall

E21D11/385

Sealing means positioned between adjacent lining members for joints in foundation structures E02D29/16; for sewers E03F3/04; for building structures in general E04B1/68

E21D11/386

inflatable sealing means

E21D11/388

having longitudinal cavities communicating with the exterior on the outer side of the lining elements

E21D11/40

Devices or apparatus specially adapted for handling or placing units of linings

or supporting units

for tunnels or galleries

combined with tunnelling shields E21D9/06

E21D11/403

combined with the head machine

E21D11/406

Placing endless lining elements, e.g. from reels in combination with a tunneling shield E21D9/0609

E21D13/00

Large underground chambers

Methods or apparatus for making them lining E21D11/00

E21D15/00

Working-face supports

E21D15/00

Props in the building art E04G25/00

Chocks

, e.g. made of flexible containers filled with backfilling material

E21D15/002

Auxiliary devices in which the prop type is not essential setting or withdrawing props or chocks E21D15/58, E21D15/60

E21D15/005

characterised by the material

E21D15/007

spark-reducing

E21D15/02

Non-telescopic props

E21D15/04

with wooden prop parts joined by double conical connectors

E21D15/06

with parts joined by a lock, with or without slight axial adjustability

E21D15/08

with toggle joint connection

E21D15/10

with dog-clutch or pin-and-hole connection

E21D15/12

with locking devices located near head or foot

E21D15/08 and E21D15/10 take precedence

E21D15/14

Telescopic props general means for fixing telescopic parts together

F16B7/10

E21D15/15

Means counteracting entry of dirt

Built-in cleaning devices

E21D15/155

Built-in cleaning devices

E21D15/16

with parts held together by positive means, with or without relative sliding movement when the prop is subject to excessive pressure

E21D15/18

with one part resting on a supporting medium, e.g. rubber, sand, bitumen, lead, located in the other part, with or without expulsion or displacement of the medium upon excessive pressure

clamping pressure between telescopic prop elements by means of granular material E21D15/303

E21D15/20

with pawl, pin, cross-piece, or the like engaging with ratchet teeth, notches, holes, or the like, spaced apart at intervals

E21D15/22

with member, pin, cross- piece, or the like, ruptured, sheared through, or permanently deformed upon excessive pressure

E21D15/24

with axial screw-and-nut, rack-and-worm, or like mechanism

E21D15/26

with screw, worm, or the like, not self-locking but normally prevented from rotation by friction members which slip upon excessive pressure

E21D15/28

with parts held relatively to each other by friction or gripping

E21D15/285

by means of wedges or wedge combinations details of wedges E21D15/43

E21D15/30

by means expanded or contracted by pressure applied through the medium of a fluid or quasi- fluid, e.g. rubber

setting props E21D15/588, E21D15/589

E21D15/303

by means of granular material supporting by means of granular material E21D15/18

E21D15/306

by means of a liquid

E21D15/32

by a deformable collar

or clamping means applied symmetrically inside a locking ring

E21D15/325

by a clamping ring

E21D15/34

by axially- moving balls, rollers, or the like

E21D15/36

by a tiltable collar surrounding one or both parts

E21D15/38

with longitudinally-divided upper or lower prop parts, e.g. interfitting laminations

E21D15/40

Collar or other support gripped to one or both parts by toggle-action, cam, or other member pivoted or similarly mounted

E21D15/42

with special parts to influence the friction

E21D15/43

Details of wedges friction linings or pads E21D15/42

E21D15/435

hydraulic

E21D15/44

Hydraulic, pneumatic, or hydraulic-pneumatic props