FR2693230B1 - Lame de coupe, notamment pour l'exécution d'une saignée courbe dans un front de taille. - Google Patents

Lame de coupe, notamment pour l'exécution d'une saignée courbe dans un front de taille.

Info

Publication number
FR2693230B1
FR2693230B1 FR9208089A FR9208089A FR2693230B1 FR 2693230 B1 FR2693230 B1 FR 2693230B1 FR 9208089 A FR9208089 A FR 9208089A FR 9208089 A FR9208089 A FR 9208089A FR 2693230 B1 FR2693230 B1 FR 2693230B1
Authority
FR
France
Prior art keywords
execution
face
cutting blade
curved groove
curved
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.)
Expired - Fee Related
Application number
FR9208089A
Other languages
English (en)
Other versions
FR2693230A1 (fr
Inventor
Robert Puglisi
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.)
PERFOREX
Original Assignee
PERFOREX
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 PERFOREX filed Critical PERFOREX
Priority to FR9208089A priority Critical patent/FR2693230B1/fr
Publication of FR2693230A1 publication Critical patent/FR2693230A1/fr
Application granted granted Critical
Publication of FR2693230B1 publication Critical patent/FR2693230B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
    • E21D9/10—Making by using boring or cutting machines
    • E21D9/1053—Making by using boring or cutting machines for making a slit along the perimeter of the tunnel profile, the remaining core being removed subsequently, e.g. by blasting
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C25/00—Cutting machines, i.e. for making slits approximately parallel or perpendicular to the seam
    • E21C25/22—Machines slitting solely by one or more cutter chains moving unidirectionally along jibs
FR9208089A 1992-07-01 1992-07-01 Lame de coupe, notamment pour l'exécution d'une saignée courbe dans un front de taille. Expired - Fee Related FR2693230B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9208089A FR2693230B1 (fr) 1992-07-01 1992-07-01 Lame de coupe, notamment pour l'exécution d'une saignée courbe dans un front de taille.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9208089A FR2693230B1 (fr) 1992-07-01 1992-07-01 Lame de coupe, notamment pour l'exécution d'une saignée courbe dans un front de taille.

Publications (2)

Publication Number Publication Date
FR2693230A1 FR2693230A1 (fr) 1994-01-07
FR2693230B1 true FR2693230B1 (fr) 1994-09-16

Family

ID=9431396

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9208089A Expired - Fee Related FR2693230B1 (fr) 1992-07-01 1992-07-01 Lame de coupe, notamment pour l'exécution d'une saignée courbe dans un front de taille.

Country Status (1)

Country Link
FR (1) FR2693230B1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2130913B1 (es) * 1993-06-21 2000-03-01 Rodio Cimentaciones Especiales Mejoras introducidas en la patente de invencion 9301380, por "equipo universal para la ejecucion de prebovedas y tratamientos complementarios en excavaciones subterraneas".
CN102587923B (zh) * 2012-03-15 2013-04-10 中国铁建重工集团有限公司 一种中心轴式预切槽设备
CN111594210A (zh) * 2020-05-29 2020-08-28 中铁工程装备集团有限公司 一种硬岩隧道施工方法

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE865189A (fr) * 1978-03-22 1978-07-17 Madrigali Luigi Dispositif de havage de roche

Also Published As

Publication number Publication date
FR2693230A1 (fr) 1994-01-07

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Legal Events

Date Code Title Description
ST Notification of lapse