BE518295A - - Google Patents
Info
- Publication number
- BE518295A BE518295A BE518295DA BE518295A BE 518295 A BE518295 A BE 518295A BE 518295D A BE518295D A BE 518295DA BE 518295 A BE518295 A BE 518295A
- Authority
- BE
- Belgium
- Prior art keywords
- prop
- friction
- keyed
- limits
- values
- Prior art date
Links
- 230000007246 mechanism Effects 0.000 claims description 18
- 238000005065 mining Methods 0.000 claims description 11
- 239000002184 metal Substances 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims description 4
- 230000009467 reduction Effects 0.000 claims description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 2
- 230000003247 decreasing effect Effects 0.000 claims description 2
- 229910002804 graphite Inorganic materials 0.000 claims description 2
- 239000010439 graphite Substances 0.000 claims description 2
- 238000005470 impregnation Methods 0.000 claims description 2
- 230000000284 resting effect Effects 0.000 claims description 2
- 210000003462 vein Anatomy 0.000 description 8
- 230000008859 change Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000000737 periodic effect Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 241000233866 Fungi Species 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
- E21D15/14—Telescopic props
- E21D15/28—Telescopic props with parts held relatively to each other by friction or gripping
- E21D15/42—Telescopic props with parts held relatively to each other by friction or gripping with special parts to influence the friction
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Lubricants (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE518295A true BE518295A (enEXAMPLES) |
Family
ID=154909
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE518295D BE518295A (enEXAMPLES) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE518295A (enEXAMPLES) |
-
0
- BE BE518295D patent/BE518295A/fr unknown
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11371313B2 (en) | Hard-sealing soluble bridge plug | |
| FR2492713A1 (fr) | Procede de precontrainte des surfaces de travail des chambres ou cylindres sous pression | |
| EP1461560B2 (fr) | Joint filete tubulaire superieur comprenant au moins un element filete avec levre d extremite | |
| CA2400820C (fr) | Element filete tubulaire delarde resistant a la fatigue | |
| Datta et al. | Crushing of calcareous sands during shear | |
| FR2684897A1 (fr) | Emulsion bimodale d'huile telle que petrole brut dans l'eau et procede pour sa preparation. | |
| US10914132B1 (en) | Large-diameter soluble bridge plug | |
| BE518295A (enEXAMPLES) | ||
| EP1185716B1 (fr) | Procede de fabrication d'une carcasse metallique pour conduite flexible ou ombilical | |
| EP0488919B1 (fr) | Dispositif à ruban métallique articulé, notamment pour le déplacement de charges lourdes | |
| FR2480400A1 (fr) | Raccord filete etanche aux gaz, notamment pour conduites de puits de forage de petrole ou de gaz | |
| EP2356292B1 (fr) | Procede de realisation d'une piece en beton arme et piece ainsi realisee | |
| EP1794028B1 (fr) | Benne pour matieres granulaires | |
| CA3119193A1 (fr) | Dispositif pour la contention d'elements granulaires | |
| US3077704A (en) | Pole-surrounding soil-reinforcing structure | |
| BE557090A (enEXAMPLES) | ||
| JP2002294691A (ja) | Ｚ型鋼矢板 | |
| FR2530285A1 (fr) | Accelerateur de coulisse de repechage | |
| CN210686027U (zh) | 一种预应力吸能锚杆索 | |
| Sharma et al. | Uplift capacity of anchor piles in sand under axial pulling loads | |
| FR2834326A1 (fr) | Joint filete tubulaire etanche apres expansion diametrale | |
| KR100770573B1 (ko) | 석탄 파일 표면 압착용 롤 장치 | |
| BE543530A (enEXAMPLES) | ||
| Ghaly et al. | Closure to “Helical Anchors in Dry and Submerged Sand Subjected to Surcharge” by Ashraf Ghaly, Adel Hanna, Gopal Ranjan, and Mikhail Hanna (October, 1991, Vol. 117, No. 10) | |
| BE484780A (enEXAMPLES) |