SU636393A1 - Method of relieving mined-out mineral seams from excess stresses - Google Patents
Method of relieving mined-out mineral seams from excess stressesInfo
- Publication number
- SU636393A1 SU636393A1 SU772463917A SU2463917A SU636393A1 SU 636393 A1 SU636393 A1 SU 636393A1 SU 772463917 A SU772463917 A SU 772463917A SU 2463917 A SU2463917 A SU 2463917A SU 636393 A1 SU636393 A1 SU 636393A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- minerals
- pillars
- safety
- mineral
- drilling
- Prior art date
Links
Landscapes
- Earth Drilling (AREA)
Description
Дл разгрузки надрабатываемого пласта полезного ископаемого от повышенных напр жений производ т выемку полезного ископаемого из целиков, оставленных в выработанном пространстве надрабат1з1вающега пласта, посредством проведени печей. Затем производ т разрушение неизвлеченного между печами полезного ископаемого буровзрьшными работами, В зависимости от размеров целиков проведение печей и последующее разрушение полезного ископаемого между ними могут производить в один или несколько Щ5КЛОВ. При этом минимально необхо1щмук степень выемки полезного ископаемого определ ют из выражени :In order to unload the mineral overburden from elevated stresses, the mineral is excavated from the pillars left in the overburden reservoir, by means of furnaces. Then, the mineral that is not extracted between the kilns is destroyed by drilling and drilling operations. Depending on the size of the pillars, the holding of the kilns and the subsequent destruction of the mineral between them can be done in one or several Sch5KLOV. The minimum required degree of mineral extraction is determined from the expression:
((
-tr-tr
mm
g к уg to y
riiefl - суммарна мощность пород непосредственной кровли надрабатьюающего пласта;riiefl is the total thickness of the rocks of the immediate roof of the slave formation;
Jj it конечгаю значени коэффициента разрыхлени обрушившихс пород нецосредственной кровли надрабатьшшощего пласта и разрушенного взрывными работами полезного ископаемого;Jj it, of course, the values of the coefficient of loosening of the collapsed rocks of the mediocre roof of the reservoir and the mineral destroyed by the blasting;
hi g - вынимаема мощность надрабатывающего пласта.hi g - power taken over the reservoir.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU772463917A SU636393A1 (en) | 1977-03-18 | 1977-03-18 | Method of relieving mined-out mineral seams from excess stresses |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU772463917A SU636393A1 (en) | 1977-03-18 | 1977-03-18 | Method of relieving mined-out mineral seams from excess stresses |
Publications (1)
Publication Number | Publication Date |
---|---|
SU636393A1 true SU636393A1 (en) | 1978-12-05 |
Family
ID=20700009
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU772463917A SU636393A1 (en) | 1977-03-18 | 1977-03-18 | Method of relieving mined-out mineral seams from excess stresses |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU636393A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2672296C1 (en) * | 2018-02-07 | 2018-11-13 | федеральное государственное бюджетное образовательное учреждение высшего образования "Санкт-Петербургский горный университет" | Method of developing adjacent of coal seams |
-
1977
- 1977-03-18 SU SU772463917A patent/SU636393A1/en active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2672296C1 (en) * | 2018-02-07 | 2018-11-13 | федеральное государственное бюджетное образовательное учреждение высшего образования "Санкт-Петербургский горный университет" | Method of developing adjacent of coal seams |
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