E
FIXED CONSTRUCTIONS
EARTH OR ROCK DRILLING; MINING
E21
EARTH OR ROCK DRILLING; MINING

Note(s)

  • In this class, the following term is used with the meaning indicated:
    • "drilling" covers boring and vice versa.
E21D
SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS (soil-conditioning or soil-stabilising materials C09K 17/00; cutting machines for mining or quarrying E21C; safety devices, transport, rescue, ventilation or drainage E21F) [6]

Note(s) [6]

  • This subclass covers methods or apparatus for making or lining tunnels, galleries or large underground chambers, using underground mining methods only, i.e. not involving disturbance of the ground surface.
  • This subclass does not cover underground spaces made by foundation engineering, i.e. involving disturbance of the ground surface, which are covered by subclass E02D.
Subclass index
MAKING SHAFTS; LININGS THEREFOR 1/00, 3/00, 7/00, 8/00, 5/00
MAKING TUNNELS OR GALLERIES; LININGS THEREFOR 9/00, 11/00
MAKING UNDERGROUND CHAMBERS; LININGS THEREFOR 13/00, 11/00
WORKING-FACE SUPPORTS OR COVERS 15/00, 17/00, 19/00, 21/00
SUPPORTS FOR STEP-BY-STEP MOVEMENT 23/00
SETTING ANCHORING BOLTS 20/00
Shafts
E21D 1/00
Sinking shafts [2006.01]
E21D 1/02
by hand [2006.01]
E21D 1/03
mechanically (E21D 1/08 takes precedence) [2006.01]
E21D 1/04
with grabs [2006.01]
E21D 1/06
with shaft-boring cutters (drilling machines E21B) [2006.01]
E21D 1/08
while moving the lining downwards [2006.01]
E21D 1/10
Preparation of the ground [2006.01]
E21D 1/12
by freezing [2006.01]
E21D 1/14
E21D 1/16
by petrification (grouting anchoring-bolts E21D 20/02) [2006.01]
E21D 3/00
Raising shafts, i.e. working upwards from the bottom [2006.01]
E21D 5/00
Lining shafts; Linings therefor (E21D 11/00 takes precedence) [2006.01]
E21D 5/01
using prefabricated lining lowered into a hole filled with liquid or viscous mass [2006.01]
E21D 5/012
Use of fluid-tight or anti-friction material on outside of, or between, lining layers [2006.01]
E21D 5/016
Bearer curbs [2006.01]
E21D 5/02
with wood (E21D 5/01, E21D 5/012, E21D 5/016 take precedence) [2006.01]
E21D 5/04
with brick, concrete, stone, or similar building materials (E21D 5/01, E21D 5/012, E21D 5/016 take precedence) [2006.01]
E21D 5/06
with iron or steel (E21D 5/01, E21D 5/012, E21D 5/016 take precedence) [2006.01]
E21D 5/08
in the form of profiled parts [2006.01]
E21D 5/10
in the form of tubbing [2006.01]
E21D 5/11
with combinations of different materials, e.g. wood, metal, concrete (E21D 5/01, E21D 5/012, E21D 5/016 take precedence) [2006.01]
E21D 5/12
Accessories for making shaft linings, e.g. suspended cradles, shutterings [2006.01]
E21D 7/00
Shaft equipment, e.g. timbering within the shaft [2006.01]
E21D 7/02
Arrangement of guides for cages in shafts; Connection of guides for cages to shaft walls (guideways or guides for elevators B66B 7/02) [2006.01]
E21D 8/00
Shafts not provided for in groups E21D 1/00-E21D 7/00 [2006.01]
Tunnels; Galleries; Large underground chambers; Linings therefor [6]
E21D 9/00
Tunnels or galleries, with or without linings; Methods or apparatus for making thereof (linings per se E21D 11/00; galleries protecting against falling rocks or avalanches E01F 7/04); Layout of tunnels or galleries [2006.01]
E21D 9/01
Methods or apparatus for enlarging or restoring the cross-section of tunnels, e.g. by restoring the floor to its original level [2006.01]
E21D 9/02
Driving inclined tunnels or galleries [2006.01]
E21D 9/04
Driving tunnels or galleries through loose materials; Apparatus therefor not otherwise provided for [2006.01]
E21D 9/06
Making by using a driving shield [2006.01]
E21D 9/08
with additional boring or cutting means [2006.01]
E21D 9/087
with a rotary drilling-head cutting simultaneously the whole cross-section, i.e. full-face machines [2006.01]
E21D 9/093
Control of the driving shield [2006.01]
E21D 9/10
Making by using boring or cutting machines (E21D 9/08 takes precedence; similar machines for mining E21C 27/20; mining picks E21C 35/18) [2006.01]
E21D 9/11
with a rotary drilling-head cutting simultaneously the whole cross-section, i.e. full-face machines [2006.01]
E21D 9/12
Devices for removing or hauling away excavated material or spoil; Working or loading platforms (underground transport E21F 13/00) [2006.01]
E21D 9/13
using hydraulic or pneumatic conveying means [2006.01]
E21D 9/14
Layout of tunnels or galleries; Constructional features of tunnels or galleries, not otherwise provided for, e.g. portals, day-light attenuation at tunnel openings [2006.01]
E21D 11/00
Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling (E21D 15/00-E21D 23/00 take precedence; specially for shafts E21D 5/00; lining pressure water galleries, linings therefor E02B 9/06) [2006.01]
E21D 11/02
Lining predominantly with wood [2006.01]
E21D 11/03
using timber-setting machines [2006.01]
E21D 11/04
Lining with building materials (E21D 11/02, E21D 11/14 take precedence) [2006.01]
E21D 11/05
using compressible insertions [2006.01]
E21D 11/06
with bricks [2006.01]
E21D 11/07
using brick-laying machines [2006.01]
E21D 11/08
with preformed concrete slabs [2006.01]
E21D 11/10
with concrete cast in situ; Shuttering or other equipment adapted therefor [2006.01]
E21D 11/12
Temporary supports for use during building; Accessories [2006.01]
E21D 11/14
Lining predominantly with metal [2006.01]
E21D 11/15
Plate linings; Laggings, i.e. linings designed for holding back formation material or for transmitting the load to main supporting members (insulation E21D 11/38) [2006.01]
E21D 11/18
Arch members [2006.01]
E21D 11/20
Special cross-sections, e.g. corrugated [2006.01]
E21D 11/22
Clamps or other yieldable means for interconnecting adjacent arch members either rigidly, or allowing arch member parts to slide when subjected to excessive pressure [2006.01]
E21D 11/24
Knuckle joints or links between arch members [2006.01]
E21D 11/26
Shoes for connecting arch members to longitudinal struts [2006.01]
E21D 11/28
Longitudinal struts [2006.01]
E21D 11/30
Bases for lower arch members (for props E21D 15/54) [2006.01]
E21D 11/34
Joints between vertical props and horizontal top bars (end caps forming part of the props E21D 15/54) [2006.01]
E21D 11/36
Linings or supports specially shaped for tunnels or galleries of irregular cross-section [2006.01]
E21D 11/38
Waterproofing (in general E02D 31/00); Heat insulating; Soundproofing; Electric insulating (for building constructions in general E04B 1/62) [2006.01]
E21D 11/40
Devices or apparatus specially adapted for handling or placing units of linings for tunnels or galleries [2006.01]
E21D 13/00
Large underground chambers; Methods or apparatus for making them (lining E21D 11/00) [2006.01]
E21D 13/02
Methods [2006.01]
E21D 13/04
Special equipment; Accessories [2006.01]
Working-face supports
E21D 15/00
Props (in the building art E04G 25/00); Chocks [2006.01]
E21D 15/02
Non-telescopic props [2006.01]
E21D 15/04
with wooden prop parts joined by double conical connectors [2006.01]
E21D 15/06
with parts joined by a lock, with or without slight axial adjustability [2006.01]
E21D 15/08
with toggle joint connection [2006.01]
E21D 15/10
with dog-clutch or pin-and-hole connection [2006.01]
E21D 15/12
with locking devices located near head or foot [2006.01]
E21D 15/14
Telescopic props (general means for fixing telescopic parts together F16B) [2006.01]
E21D 15/15
Means counteracting entry of dirt; Built-in cleaning devices [2006.01]
E21D 15/16
with parts held together by positive means, with or without relative sliding movement when the prop is subject to excessive pressure [2006.01]
E21D 15/18
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 [2006.01]
E21D 15/20
with pawl, pin, cross-piece, or the like engaging with ratchet teeth, notches, holes, or the like spaced apart at intervals [2006.01]
E21D 15/22
with member, pin, cross-piece, or the like ruptured, sheared through, or permanently deformed upon excessive pressure [2006.01]
E21D 15/24
with axial screw-and-nut, rack-and-worm, or like mechanism [2006.01]
E21D 15/26
with screw, worm, or the like not self-locking but normally prevented from rotation by friction members which slip upon excessive pressure [2006.01]
E21D 15/28
with parts held relatively to each other by friction or gripping, e.g. using wedges [2006.01]
E21D 15/30
by means expanded or contracted by pressure applied through the medium of a fluid or quasi-fluid, e.g. rubber [2006.01]
E21D 15/32
by a deformable collar [2006.01]
E21D 15/34
by axially-moving balls, rollers, or the like [2006.01]
E21D 15/36
by a tiltable collar surrounding one or both parts [2006.01]
E21D 15/38
with longitudinally-divided upper or lower prop parts, e.g. interfitting laminations [2006.01]
E21D 15/40
Collar or other support gripped to one or both parts by toggle-action, cam, or other member pivoted or similarly mounted [2006.01]
E21D 15/42
with special parts to influence the friction [2006.01]
E21D 15/43
Details of wedges (friction linings or pads E21D 15/42) [2006.01]
E21D 15/44
Hydraulic, pneumatic, or hydraulic-pneumatic props [2006.01]
E21D 15/45
having closed fluid system, e.g. with built-in pumps or accumulators [2006.01]
E21D 15/46
with load-measuring devices; with alarm devices [2006.01]
E21D 15/48
Chocks or the like [2006.01]
E21D 15/50
Component parts or details of props (E21D 15/43, E21D 15/58, E21D 15/60 take precedence) [2006.01]
E21D 15/502
Prop bodies characterised by their shape, e.g. of specified cross-section [2006.01]
E21D 15/51
specially adapted to hydraulic, pneumatic, or hydraulic-pneumatic props, e.g. arrangements of relief valves [2006.01]
E21D 15/52
Extensible units located above or below standard props [2006.01]
E21D 15/54
Details of the ends of props (for permitting step-by-step movement E21D 23/06) [2006.01]
E21D 15/55
of prop heads [2006.01]
E21D 15/56
Details of locks of telescopic props [2006.01]
E21D 15/58
Devices for setting props [2006.01]
E21D 15/582
for mechanical props [2006.01]
E21D 15/59
for hydraulic, pneumatic, or hydraulic-pneumatic props [2006.01]
E21D 15/60
Devices for withdrawing props or chocks [2006.01]
E21D 17/00
Caps for supporting mine roofs [2006.01]
E21D 17/01
characterised by the shape of the cap, e.g. of specified cross-section [2006.01]
E21D 17/02
Cantilever extension or similar protecting devices [2006.01]
E21D 17/022
Auxiliary devices for temporary support of roof-supporting beams whilst assembling [2006.01]
E21D 17/03
Brackets for roof-supporting bars [2006.01]
E21D 17/04
for use in longwall working [2006.01]
E21D 17/05
hydraulically extensible [2006.01]
E21D 17/054
hydraulically pivotable [2006.01]
E21D 17/06
for use in drifting galleries [2006.01]
E21D 17/08
Cap joints for obtaining a coal-face free of pit-props [2006.01]
E21D 17/082
of sliding type [2006.01]
E21D 17/086
of articulated type [2006.01]
E21D 17/10
Details of mine caps for engaging the tops of pit-props, with or without retaining-plates; Retaining-plates [2006.01]
E21D 19/00
Provisional protective covers for working space (E21D 9/06, E21D 23/00 take precedence) [2006.01]
E21D 19/02
for use in longwall working [2006.01]
E21D 19/04
for use in drifting galleries [2006.01]
E21D 19/06
Arrangements for applying the covers [2006.01]
E21D 20/00
Setting anchoring-bolts (anchoring bolts for shafts, tunnels or galleries E21D 21/00; means for anchoring structural elements or bulkheads specially adapted to foundation engineering E02D 5/74; dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose F16B 13/00) [2006.01]
E21D 20/02
with provisions for grouting [2006.01]
E21D 21/00
Anchoring-bolts for roof, floor, or shaft-lining protection (dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose F16B 13/00) [2006.01]
E21D 21/02
having means for indicating tension (screwed connections specially modified for indicating tensile load F16B 31/02) [2006.01]
E21D 23/00
Mine roof supports for step-by-step movement, e.g. in combination with provisions for shifting of conveyors, mining machines or guides therefor (shifting of mine conveyors at the working face, per se E21F 13/08) [2006.01]
E21D 23/03
having protective means, e.g. shields, for preventing or impeding entry of loose material into the working space or support [2006.01]
E21D 23/04
Structural features of the supporting construction, e.g. linking members between adjacent frames or sets of props; Means for counteracting lateral sliding on inclined floor (E21D 23/14 takes precedence) [2006.01]
E21D 23/06
Special mine caps or special tops of pit-props for permitting step-by-step movement [2006.01]
E21D 23/08
Advancing mechanisms (E21D 23/16 takes precedence) [2006.01]
E21D 23/10
with advancing devices separate from the supporting construction [2006.01]
E21D 23/12
Control, e.g. using remote control (E21D 23/16 takes precedence) [2006.01]
E21D 23/14
Effecting automatic sequential movement of supports, e.g. one behind the other [2006.01]
E21D 23/16
Hydraulic or pneumatic features, e.g. circuits, arrangement or adaptation of valves, setting or retracting devices [2006.01]
E21D 23/18
of advancing mechanisms [2006.01]
E21D 23/20
for sequential movement, e.g. one behind the other [2006.01]
E21D 23/22
incorporated in mine caps [2006.01]
E21D 23/24
the advancing mechanisms being separate from the supporting construction [2006.01]
E21D 23/26
Hydraulic or pneumatic control [2006.01]