SU662714A1 - Method of sloping - Google Patents
Method of slopingInfo
- Publication number
- SU662714A1 SU662714A1 SU772550286A SU2550286A SU662714A1 SU 662714 A1 SU662714 A1 SU 662714A1 SU 772550286 A SU772550286 A SU 772550286A SU 2550286 A SU2550286 A SU 2550286A SU 662714 A1 SU662714 A1 SU 662714A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- wells
- berm
- open
- ledge
- sloping
- Prior art date
Links
Landscapes
- Earth Drilling (AREA)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
Description
(54) СПОСОБ ЗАОТКОСКИ УСТУПОВ(54) METHOD OF CUSTOMS SETTINGS
1one
Изобретение относитс к горной промышленности и может быть использовано при открытой разработке месторождений полезных HCKonaewijix дл заоткоски уступов.The invention relates to the mining industry and can be used in the open-pit mining of useful HCKonaewijix deposits for the development of ledges.
Известен способ заоткоски уступов при открытой разработке месторождений полезных ископаемых путем взрывани зар дов ВВ (взр1ивчатых ) в наклонных скважинах I.There is a known method of drift in ledges for open mining of mineral deposits by blasting explosives (explosive) in inclined wells I.
Известен также способ заоткоски уступов при открытой разработке месторождений полезных ископаемых, включающий в себ создание экранируюп1.ей щели на предельном контуре карьера 2.There is also known a method of depositing ledges in the open-pit mining of mineral deposits, which includes the creation of screened slits on the marginal contour of open pit 2.
Однако известные способы не предохран ют от разрушени ,взрывом бермы нижележащего уступа.However, the known methods do not protect against destruction by the explosion of the berm of the underlying ledge.
Целью изобретени вл етс предохранение от разрушени взрывом бермы нижележащего уступа.The aim of the invention is to protect against the destruction of the berm of the underlying ledge by explosion.
Поставленна цель достигаетс тем, что до отработки последней заходки выщележа; щего уступа D. основании последнего по контуру бермы нижележащего уступа создают отрезную П1ель путем взрывани зар дов ВВ в скважинах длиной не менее 2/3 ширины заходки, пробуренных под углом 15-20° к горизонту.The goal is achieved by the fact that prior to the finalization of the last leap; The base step D. based on the latter along the contour of the berm of the underlying step, creates a cutting P1el by blasting explosive charges in wells with a length of at least 2/3 of the width of the inlet drilled at an angle of 15-20 ° to the horizontal.
Ыа чертеже схематично представлен пред .лагаемый способ заоткоски.The drawing shows schematically the proposed chipping method.
До отработки приконтурной з; ходки I создают экранирующую И1.ель 2 и ()Т1)сзную Н1ель. Дл создани отрезной щели в основании уступа бур т скважины 3 длиной не менее 2/3 пн1рины заходки. Бур т скважины под углом 15---20° к горизонту. В первую очередь взрывают скважины 3, а затем отбойные скважины 4. Целик 5 служит предохранительным буфером. После уборки ..породы берма приобретает небольщой обратный уклон. Prior to working out the boundary h; I's moves create shielding I1_el 2 and () T1) with Hzel. To create a cutting gap at the base of the ledge of the borehole 3 with a length of at least 2/3 of the approach. Drill wells at an angle of 15 --- 20 ° to the horizon. First, wells 3 are blown up, and then the firing wells 4. Rear sight 5 serves as a safety buffer. After cleaning the rocks, the berm acquires a slight reverse bias.
Внедрение изобретени позволит предохранить от разрушени взрывом берму нижележащего уступа.The implementation of the invention will prevent the burrs of the underlying ledge from being destroyed by the explosion.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU772550286A SU662714A1 (en) | 1977-11-30 | 1977-11-30 | Method of sloping |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU772550286A SU662714A1 (en) | 1977-11-30 | 1977-11-30 | Method of sloping |
Publications (1)
Publication Number | Publication Date |
---|---|
SU662714A1 true SU662714A1 (en) | 1979-05-15 |
Family
ID=20735993
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU772550286A SU662714A1 (en) | 1977-11-30 | 1977-11-30 | Method of sloping |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU662714A1 (en) |
-
1977
- 1977-11-30 SU SU772550286A patent/SU662714A1/en active
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