DE2004180C3 - Wandernder Strebausbau - Google Patents
Wandernder StrebausbauInfo
- Publication number
- DE2004180C3 DE2004180C3 DE19702004180 DE2004180A DE2004180C3 DE 2004180 C3 DE2004180 C3 DE 2004180C3 DE 19702004180 DE19702004180 DE 19702004180 DE 2004180 A DE2004180 A DE 2004180A DE 2004180 C3 DE2004180 C3 DE 2004180C3
- Authority
- DE
- Germany
- Prior art keywords
- expansion
- spacers
- elements
- several
- extension
- 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
Links
- 238000005065 mining Methods 0.000 title description 3
- 125000006850 spacer group Chemical group 0.000 claims description 19
- 241000251730 Chondrichthyes Species 0.000 claims description 2
- 238000010276 construction Methods 0.000 claims 4
- 101150049168 Nisch gene Proteins 0.000 claims 1
- 230000000979 retarding effect Effects 0.000 claims 1
- 230000003068 static effect Effects 0.000 claims 1
- 238000006073 displacement reaction Methods 0.000 description 2
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
- E21D23/04—Structural features of the supporting construction, e.g. linking members between adjacent frames or sets of props; Means for counteracting lateral sliding on inclined floor
- E21D23/0409—Aligning or guiding means for the supports or for the constitutive parts of the supports
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Geochemistry & Mineralogy (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Architecture (AREA)
- Geology (AREA)
- Orthopedics, Nursing, And Contraception (AREA)
- Ladders (AREA)
- Movable Scaffolding (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
- Lining And Supports For Tunnels (AREA)
- Revetment (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB799869A GB1254594A (en) | 1969-02-13 | 1969-02-13 | Improvements in or relating to mine roof supports |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| DE2004180A1 DE2004180A1 (de) | 1970-09-03 |
| DE2004180B2 DE2004180B2 (de) | 1974-05-16 |
| DE2004180C3 true DE2004180C3 (de) | 1975-10-23 |
Family
ID=9843830
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19702004180 Expired DE2004180C3 (de) | 1969-02-13 | 1970-01-30 | Wandernder Strebausbau |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JPS4934882B1 (enrdf_load_stackoverflow) |
| CA (1) | CA919439A (enrdf_load_stackoverflow) |
| DE (1) | DE2004180C3 (enrdf_load_stackoverflow) |
| FR (1) | FR2035210A5 (enrdf_load_stackoverflow) |
| GB (1) | GB1254594A (enrdf_load_stackoverflow) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5518394U (enrdf_load_stackoverflow) * | 1978-07-26 | 1980-02-05 | ||
| RU2136888C1 (ru) * | 1998-02-10 | 1999-09-10 | АО "Подмосковный научно-исследовательский и проектно-конструкторский угольный институт" | Механизированная крепь для отработки пластов камерами |
| CN114909168B (zh) * | 2021-02-10 | 2025-02-25 | 山东兖煤黑豹矿业装备有限公司 | 支护装置及掘进系统 |
-
1969
- 1969-02-13 GB GB799869A patent/GB1254594A/en not_active Expired
-
1970
- 1970-01-28 CA CA073296A patent/CA919439A/en not_active Expired
- 1970-01-30 DE DE19702004180 patent/DE2004180C3/de not_active Expired
- 1970-02-09 FR FR7004437A patent/FR2035210A5/fr not_active Expired
- 1970-02-12 JP JP45011529A patent/JPS4934882B1/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DE2004180A1 (de) | 1970-09-03 |
| DE2004180B2 (de) | 1974-05-16 |
| GB1254594A (en) | 1971-11-24 |
| CA919439A (en) | 1973-01-23 |
| JPS4934882B1 (enrdf_load_stackoverflow) | 1974-09-18 |
| FR2035210A5 (enrdf_load_stackoverflow) | 1970-12-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| SH | Request for examination between 03.10.1968 and 22.04.1971 | ||
| C3 | Grant after two publication steps (3rd publication) | ||
| E77 | Valid patent as to the heymanns-index 1977 | ||
| EHJ | Ceased/non-payment of the annual fee |