EP0885703A4 - Discharge hydraulic pressure destroying method - Google Patents

Discharge hydraulic pressure destroying method

Info

Publication number
EP0885703A4
EP0885703A4 EP96925129A EP96925129A EP0885703A4 EP 0885703 A4 EP0885703 A4 EP 0885703A4 EP 96925129 A EP96925129 A EP 96925129A EP 96925129 A EP96925129 A EP 96925129A EP 0885703 A4 EP0885703 A4 EP 0885703A4
Authority
EP
European Patent Office
Prior art keywords
hydraulic pressure
discharge hydraulic
destroying method
pressure destroying
discharge
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP96925129A
Other languages
German (de)
French (fr)
Other versions
EP0885703A1 (en
Inventor
Hiroaki Arai
Hidehiko Maehata
Tsuyoshi Kato
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Zosen Corp
Original Assignee
Hitachi Zosen Corp
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
Priority claimed from JP19441195A external-priority patent/JPH0938951A/en
Priority claimed from JP07194413A external-priority patent/JP3103021B2/en
Priority claimed from JP07194412A external-priority patent/JP3103020B2/en
Application filed by Hitachi Zosen Corp filed Critical Hitachi Zosen Corp
Publication of EP0885703A1 publication Critical patent/EP0885703A1/en
Publication of EP0885703A4 publication Critical patent/EP0885703A4/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28D—WORKING STONE OR STONE-LIKE MATERIALS
    • B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C37/00—Other methods or devices for dislodging with or without loading
    • E21C37/06—Other methods or devices for dislodging with or without loading by making use of hydraulic or pneumatic pressure in a borehole
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C37/00—Other methods or devices for dislodging with or without loading
    • E21C37/18—Other methods or devices for dislodging with or without loading by electricity

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
EP96925129A 1995-07-31 1996-07-29 Discharge hydraulic pressure destroying method Withdrawn EP0885703A4 (en)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
JP19441195A JPH0938951A (en) 1995-07-31 1995-07-31 Discharge liquid pressure destruction method
JP194412/95 1995-07-31
JP194411/95 1995-07-31
JP07194413A JP3103021B2 (en) 1995-07-31 1995-07-31 Discharge hydraulic pressure breakdown method
JP194413/95 1995-07-31
JP07194412A JP3103020B2 (en) 1995-07-31 1995-07-31 Discharge hydraulic pressure breakdown method
PCT/JP1996/002140 WO1997004934A1 (en) 1995-07-31 1996-07-29 Discharge hydraulic pressure destroying method

Publications (2)

Publication Number Publication Date
EP0885703A1 EP0885703A1 (en) 1998-12-23
EP0885703A4 true EP0885703A4 (en) 2000-01-12

Family

ID=27326932

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96925129A Withdrawn EP0885703A4 (en) 1995-07-31 1996-07-29 Discharge hydraulic pressure destroying method

Country Status (5)

Country Link
EP (1) EP0885703A4 (en)
KR (1) KR19990029023A (en)
CN (1) CN1075430C (en)
RU (1) RU2139990C1 (en)
WO (1) WO1997004934A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112177626B (en) * 2020-08-25 2021-07-23 中国矿业大学 Method for tunneling roadway by electrode directional impact operation
CN112556523A (en) * 2020-11-23 2021-03-26 浙江科技学院 Double-sided symmetrical electric blasting energy-gathering rock breaking design method

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN86104470A (en) * 1986-06-27 1988-01-06 Ceee公司 The method and apparatus of fragmenting substance by discharge of pulsed electrical energy
JPH07145698A (en) * 1993-09-28 1995-06-06 Hitachi Zosen Corp Equipment and method of breaking article to be broken
JP3538225B2 (en) * 1994-07-29 2004-06-14 電気興業株式会社 Method and apparatus for crushing bulk semiconductor material using thermal plasma

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
No further relevant documents disclosed *
See also references of WO9704934A1 *

Also Published As

Publication number Publication date
EP0885703A1 (en) 1998-12-23
RU2139990C1 (en) 1999-10-20
WO1997004934A1 (en) 1997-02-13
KR19990029023A (en) 1999-04-15
CN1075430C (en) 2001-11-28
CN1191504A (en) 1998-08-26

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Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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17P Request for examination filed

Effective date: 19980302

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18W Application withdrawn

Withdrawal date: 20020628