SU878950A1 - Ferroconcrete brace for mine workings - Google Patents
Ferroconcrete brace for mine workings Download PDFInfo
- Publication number
- SU878950A1 SU878950A1 SU792885565A SU2885565A SU878950A1 SU 878950 A1 SU878950 A1 SU 878950A1 SU 792885565 A SU792885565 A SU 792885565A SU 2885565 A SU2885565 A SU 2885565A SU 878950 A1 SU878950 A1 SU 878950A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- ferroconcrete
- brace
- tightening
- mine workings
- flat sides
- Prior art date
Links
Landscapes
- Shovels (AREA)
Description
чающа с тем, что, с целью обеспечени плотного прилегани к верхн ку и криволинейным участкам ножек арочной крепи , в одной из плоских сторон зат жки выполнены выемки по всей ширине плиты с радиусом, равным внешнему радиусу арочиой крепи, причем образуюш,а выемки параллельна поперечной стороне зат жки.This is so that, in order to ensure a close fit to the top and curvilinear sections of the arch support legs, notches are made across the entire width of the plate with a radius equal to the outer radius of the arch support in one of the flat sides of the fixture, and the notches are parallel to the transverse side tightening
Источники информации, прин тые во внимание при экспертизеSources of information taken into account in the examination
1.Авторское свидетельство СССР № 381777, кл. Е 21D 11/15, 1970.1. USSR author's certificate number 381777, cl. E 21 D 11/15, 1970.
2.Унифицированные типовые сечени горных выработок. Т. 1, Киев, 1971 (прототип ).2. Unified typical sections of mine workings. T. 1, Kiev, 1971 (prototype).
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU792885565A SU878950A1 (en) | 1979-12-29 | 1979-12-29 | Ferroconcrete brace for mine workings |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU792885565A SU878950A1 (en) | 1979-12-29 | 1979-12-29 | Ferroconcrete brace for mine workings |
Publications (1)
Publication Number | Publication Date |
---|---|
SU878950A1 true SU878950A1 (en) | 1981-11-07 |
Family
ID=20879067
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU792885565A SU878950A1 (en) | 1979-12-29 | 1979-12-29 | Ferroconcrete brace for mine workings |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU878950A1 (en) |
-
1979
- 1979-12-29 SU SU792885565A patent/SU878950A1/en active
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