SU1748483A1 - Method for driving mine workings - Google Patents
Method for driving mine workingsInfo
- Publication number
- SU1748483A1 SU1748483A1 SU4790895/03A SU4790895A SU1748483A1 SU 1748483 A1 SU1748483 A1 SU 1748483A1 SU 4790895/03 A SU4790895/03 A SU 4790895/03A SU 4790895 A SU4790895 A SU 4790895A SU 1748483 A1 SU1748483 A1 SU 1748483A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- blastholes
- preperipheral
- peripheral
- working
- mine workings
- Prior art date
Links
Landscapes
- Earth Drilling (AREA)
Abstract
FIELD: construction of mine workings. SUBSTANCE: method for driving mine workings includes drilling of snubber, slab, preperipheral and peripheral blastholes. Peripheral blastholes are drilled with inclination beyond design outline of working to depth equalling 0.3-0.6 of depth of slab and preperipheral blasthole. Angle of inclination of peripheral blastholes is determined from equation α = arctg (L/h+h+(h/2)-a)), grad, where his concrete layer thickness, m; his thickness of tunnel shield, m; his width of drill jumbo, m; a is distance from mouths of peripheral blastholes and outline of mine working, m; L is distance from tunnel shield to breast, m. Bottom of preperipheral blastholes is located on the design outline of working. Placed in bottom parts of preperipheral blastholes are high explosives. EFFECT: higher efficiency. 2 dwg
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU4790895/03A SU1748483A1 (en) | 1989-12-28 | 1989-12-28 | Method for driving mine workings |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU4790895/03A SU1748483A1 (en) | 1989-12-28 | 1989-12-28 | Method for driving mine workings |
Publications (1)
Publication Number | Publication Date |
---|---|
SU1748483A1 true SU1748483A1 (en) | 1995-10-10 |
Family
ID=60530955
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU4790895/03A SU1748483A1 (en) | 1989-12-28 | 1989-12-28 | Method for driving mine workings |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU1748483A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2558085C1 (en) * | 2014-08-01 | 2015-07-27 | Ибрагим Магомедович Паланкоев | Method of driving of vertical mine shafts in flooded unstable rocks |
CN111397454A (en) * | 2020-03-31 | 2020-07-10 | 西南交通大学 | Method for realizing spiral tunnel blasting drilling construction |
CN112902775A (en) * | 2021-02-05 | 2021-06-04 | 中铁十八局集团有限公司 | Tunnel excavation profile surface blasting forming method for reducing drilling external insertion angle |
-
1989
- 1989-12-28 SU SU4790895/03A patent/SU1748483A1/en active
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2558085C1 (en) * | 2014-08-01 | 2015-07-27 | Ибрагим Магомедович Паланкоев | Method of driving of vertical mine shafts in flooded unstable rocks |
CN111397454A (en) * | 2020-03-31 | 2020-07-10 | 西南交通大学 | Method for realizing spiral tunnel blasting drilling construction |
CN111397454B (en) * | 2020-03-31 | 2021-06-22 | 西南交通大学 | Method for realizing spiral tunnel blasting drilling construction |
CN112902775A (en) * | 2021-02-05 | 2021-06-04 | 中铁十八局集团有限公司 | Tunnel excavation profile surface blasting forming method for reducing drilling external insertion angle |
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