FR1248440A - Process for the boring of tunnels - Google Patents

Process for the boring of tunnels

Info

Publication number
FR1248440A
FR1248440A FR797290A FR797290A FR1248440A FR 1248440 A FR1248440 A FR 1248440A FR 797290 A FR797290 A FR 797290A FR 797290 A FR797290 A FR 797290A FR 1248440 A FR1248440 A FR 1248440A
Authority
FR
France
Prior art keywords
tunnels
boring
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
Application number
FR797290A
Other languages
French (fr)
Inventor
Manuel Gutierrez-Valle
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 filed Critical
Priority to FR797290A priority Critical patent/FR1248440A/en
Application granted granted Critical
Publication of FR1248440A publication Critical patent/FR1248440A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • E21C37/16—Other methods or devices for dislodging with or without loading by fire-setting or by similar methods based on a heat effect

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)
FR797290A 1959-06-12 1959-06-12 Process for the boring of tunnels Expired FR1248440A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR797290A FR1248440A (en) 1959-06-12 1959-06-12 Process for the boring of tunnels

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR797290A FR1248440A (en) 1959-06-12 1959-06-12 Process for the boring of tunnels

Publications (1)

Publication Number Publication Date
FR1248440A true FR1248440A (en) 1960-12-16

Family

ID=8715928

Family Applications (1)

Application Number Title Priority Date Filing Date
FR797290A Expired FR1248440A (en) 1959-06-12 1959-06-12 Process for the boring of tunnels

Country Status (1)

Country Link
FR (1) FR1248440A (en)

Similar Documents

Publication Publication Date Title
BE594118A (en) Improved process for the purification of plasminogen.
BE600588A (en) Process for the production of pyridyl-alkyl-ketones
FR1245457A (en) Process for the preparation of dicyanogen
FR1248252A (en) Process for the production of cyclododecanonoxime
FR1244721A (en) Process for producing eupolyoxy-methylenes
FR1324911A (en) Process for the preparation of new penicillins
FR1248440A (en) Process for the boring of tunnels
BE599716A (en) Process for the production of p-alkyl- or p-cycloalkoylphenols
FR1475602A (en) Process for the production of diamino-1-4 anthraquinone dinitrile-2-3
BE597902A (en) Process for the purification of demethylchlorotetracycline
FR1273365A (en) Process for the preparation of pyridylmethylamines
FR1332510A (en) Process for the preparation of new carbamylazetidines
FR1306604A (en) Process for preparing substituted bisphenylethylenes
FR1473806A (en) Process for preparing alpha-pyrrolidinoketones
FR1393957A (en) Process for the preparation of new dihydroquinoxalones
FR1369307A (en) Process for the preparation of 4-quinazolinones
FR75327E (en) Process for the synthesis of phosphocreatinine
FR1250047A (en) Epoxidation process
BE596225A (en) Process for the production of dialkylamino-1-hydroxy-4-acetylenes-2.
FR1259602A (en) Process for preparing hydantoins
FR1425257A (en) Process for the synthesis of new monoalkoxytriaziridinoquinones
CY387A (en) Process for the production of xanthocilline
FR1269027A (en) Method for the protection of bearings
BE576150A (en) Process for the protection of joints.
FR1271879A (en) Process for preparing arylindandiones