DK297376A - Fremgangsmade til brydning under jordens overflade - Google Patents

Fremgangsmade til brydning under jordens overflade

Info

Publication number
DK297376A
DK297376A DK297376A DK297376A DK297376A DK 297376 A DK297376 A DK 297376A DK 297376 A DK297376 A DK 297376A DK 297376 A DK297376 A DK 297376A DK 297376 A DK297376 A DK 297376A
Authority
DK
Denmark
Prior art keywords
earth
breaking under
breaking
under
Prior art date
Application number
DK297376A
Other languages
English (en)
Inventor
L C Lang
Original Assignee
Canadian Ind
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Canadian Ind filed Critical Canadian Ind
Publication of DK297376A publication Critical patent/DK297376A/da

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21DSHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D13/00Large underground chambers; Methods or apparatus for making them
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21CMINING OR QUARRYING
    • E21C41/00Methods of underground or surface mining; Layouts therefor
    • E21C41/16Methods of underground mining; Layouts therefor
    • E21C41/22Methods of underground mining; Layouts therefor for ores, e.g. mining placers
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21DSHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D9/00Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
    • E21D9/006Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries by making use of blasting methods
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42AMMUNITION; BLASTING
    • F42DBLASTING
    • F42D1/00Blasting methods or apparatus, e.g. loading or tamping

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Remote Sensing (AREA)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)
DK297376A 1975-07-11 1976-07-01 Fremgangsmade til brydning under jordens overflade DK297376A (da)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA231,434A CA1012564A (en) 1975-07-11 1975-07-11 Method of underground mining

Publications (1)

Publication Number Publication Date
DK297376A true DK297376A (da) 1977-01-12

Family

ID=4103604

Family Applications (1)

Application Number Title Priority Date Filing Date
DK297376A DK297376A (da) 1975-07-11 1976-07-01 Fremgangsmade til brydning under jordens overflade

Country Status (18)

Country Link
JP (1) JPS529601A (da)
AU (1) AU497215B2 (da)
CA (1) CA1012564A (da)
DD (1) DD126080A5 (da)
DE (1) DE2630979A1 (da)
DK (1) DK297376A (da)
ES (1) ES449723A1 (da)
FI (1) FI762019A (da)
FR (1) FR2317474A1 (da)
GB (1) GB1538494A (da)
IL (1) IL49894A (da)
IN (1) IN142616B (da)
MX (1) MX145910A (da)
NO (1) NO762410L (da)
PT (1) PT65353B (da)
SE (1) SE417855B (da)
ZA (1) ZA763697B (da)
ZM (1) ZM8776A1 (da)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4146272A (en) * 1977-09-14 1979-03-27 Occidental Oil Shale, Inc. Explosive placement for explosive expansion toward spaced apart voids
US4349227A (en) * 1979-08-20 1982-09-14 Occidental Oil Shale Mining system for in situ oil shale retorts
US4345794A (en) * 1980-11-10 1982-08-24 Occidental Oil Shale, Inc. Placement of explosive for forming in situ oil shale retort
US4611856A (en) * 1981-03-23 1986-09-16 Occidental Oil Shale, Inc. Two-level, horizontal free face mining system for in situ oil shale retorts
CN108661643B (zh) * 2018-04-25 2019-08-16 太原理工大学 一种采煤工作面末采回撤通道切顶卸压护巷方法
CN113404498B (zh) * 2021-06-18 2024-01-05 安徽金日晟矿业有限责任公司 一种vcr采矿方法
CN114427463B (zh) * 2022-01-25 2022-11-15 长沙矿山研究院有限责任公司 深部矿床下向进路式盘区分区卸荷分层超前卸压回采方法
CN115450627A (zh) * 2022-08-30 2022-12-09 深圳市中金岭南有色金属股份有限公司凡口铅锌矿 Vcr法破顶层与底柱同时回采方法
CN115468465A (zh) * 2022-09-28 2022-12-13 彝良驰宏矿业有限公司 一种无掏槽快速形成补偿空间的***方法

Also Published As

Publication number Publication date
AU1529376A (en) 1978-01-05
FR2317474B1 (da) 1980-06-27
MX145910A (es) 1982-04-21
SE417855B (sv) 1981-04-13
NO762410L (da) 1977-01-12
JPS529601A (en) 1977-01-25
DD126080A5 (da) 1977-06-15
ZM8776A1 (en) 1978-10-23
SE7607841L (sv) 1977-01-12
PT65353B (en) 1978-01-09
FR2317474A1 (fr) 1977-02-04
AU497215B2 (en) 1978-12-07
CA1012564A (en) 1977-06-21
ES449723A1 (es) 1977-08-01
FI762019A (da) 1977-01-12
IN142616B (da) 1977-08-06
GB1538494A (en) 1979-01-17
ZA763697B (en) 1977-05-25
IL49894A (en) 1978-06-15
DE2630979A1 (de) 1977-01-20
PT65353A (en) 1976-08-01
IL49894A0 (en) 1976-08-31

Similar Documents

Publication Publication Date Title
RO76284A (ro) Procedeu pentru consolidarea formatiunilor geologice
TR19292A (tr) Olifinlerin polimerizasyonuna mahsus usul
RO75006A (ro) Procedeu pentru prepararea unor mercaptoazetidinone
NO150717C (no) Fremgangsmaate til fremstilling av syntesegass
IT1066078B (it) Procedimento per la produzione di surrogati di albume
IT1062629B (it) Procedimento per la produzione di cantaxantina
DK297376A (da) Fremgangsmade til brydning under jordens overflade
IT1066655B (it) Procedimento per depurare caprolattame
DK575576A (da) Fremgangsmade til fremstilling af krystallinske former af natrium-cefamandol
RO69281A (ro) Procedeu pentru prepararea alchilamino-s-triazinelor
IT1069085B (it) Procedimento per produrre triclorometil-trifluorometil-benzoli
IT1066001B (it) Procedimento per l esterificazione di clorosilani
IT1052928B (it) Procedimento per la produzione di floroglucina
AT344573B (de) Vorrichtung zum innenglasieren von steinzeugrohren
PL100145B1 (pl) Sposob wytwarzania nowych zwiazkow dwuureidowych
RO68209A (ro) Procedeu pentru prepararea unor arilalchilaminoalchilftalimidine
IT1053297B (it) Procedimento per la produzione di alchil o cicloalchenoanilina
DK294076A (da) Fremgangsmade til digelfri zonesmeltning
JPS5210318A (en) Method of manufacturing highhclass asphalt
IT1070059B (it) Procedimento per la fabbricazione di pietrine pirofore
SE7605753L (sv) Forfarande for framstellning av urandioxid
SU525676A1 (ru) Способ получени -алкил/арил/4-формил-5-хлоримидазолов
PL190303A1 (pl) Sposob wytwarzania nowych enamin
SE7609064L (sv) Forbandsten
SU560879A1 (ru) Способ получени дейтерированных -диазокарбонильных соединений