SU1234660A1 - Method of forecasting outburst hazard of coal bed - Google Patents
Method of forecasting outburst hazard of coal bed Download PDFInfo
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- SU1234660A1 SU1234660A1 SU843820426A SU3820426A SU1234660A1 SU 1234660 A1 SU1234660 A1 SU 1234660A1 SU 843820426 A SU843820426 A SU 843820426A SU 3820426 A SU3820426 A SU 3820426A SU 1234660 A1 SU1234660 A1 SU 1234660A1
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- SU
- USSR - Soviet Union
- Prior art keywords
- outburst
- acoustic emission
- formation
- hazard
- zone
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- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Description
Изобретение относитс к горной прокышленности и может быть ис поль- эовано дл определени выбросоопас- ных зон при разработке угольных плас- тон и целенаправленного выбора про- тиврвмбросных меропри тий.The invention relates to the mining industry and can be used to determine the outburst zones in the development of coal plates and the targeted choice of countervailing measures.
Цель изобретени - повыше:ние надежности определени выбросоопас- ности зон пласта и причин по влени выбросоопасности путем учета горно- геологического состо ни пласта.The purpose of the invention is to increase the reliability of determining the outburst hazard of reservoir zones and the causes of outburst hazard by taking into account the geological state of the reservoir.
Способ осуществл ют следующим образом .The method is carried out as follows.
В скважинах,, пробуренных в пласте на глубину до 2м, регистрируют им- пульсы акустической эмиссии с помощью сейсмоприёмников, установленных в скважинах. Рассчитывают статистичес- кие характеристики акустической эмис- сии дл интервалов, равных минималь- ному размеру переходной зоны -5м. Оценки статистических характеристик производ т ежедневно, дл чего интервалы наблюдений сдвигают на величину подвигани забо за истекшие сутки. In the wells drilled in the reservoir to a depth of 2 m, acoustic emission pulses are recorded with the help of seismic receivers installed in the wells. Calculate the statistical characteristics of acoustic emission for intervals equal to the minimum size of the transition zone -5 m. Estimates of statistical characteristics are performed daily, for which the intervals of observations are shifted by the amount of advancement over the past 24 hours.
На участках пласта, з шщенйых от. выбросов в результате надработкй пластом, определ ют безопасный уроРедактор М.ТовтинIn areas of the reservoir, zschenyyh from. of emissions from the reservoir, determine the safe uroditor M.Tovtin
Составитель Г.ВасючковаCompiled by G. Vasyuchkova
Техред О.Гортвай Корректор Е.РошкоTehred O. Gortvay Proofreader E. Roshko
Заказ 2965/42 Тираж 436ПодписноеOrder 2965/42 Circulation 436Subscription
ВНИИПИ Государственного комитета СССРVNIIPI USSR State Committee
по делам изобретений и открытий 113035, Москва, Ж-35, Раушска наб., д. 4/5for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5
Производственно-полиграфическое предпри тие, г.Ужгород, ул.Проектна , 4Production and printing company, Uzhgorod, Projecto st., 4
вень акустической эмиссии. Сравнива- ют текущие значени эмиссии при разработке пласта с безопасным уровнем . При изменении, увеличении или уменьшении уровн акустической эмиссии более чем на 5% оценивают наруше ность угл в нижней пачке пласта в нишах, пройденных за пределы зоны естественного отжима, в средних част х 1 - 5 уступов лавы.shade of acoustic emission. The current emission values are compared when developing a reservoir with a safe level. When changing, increasing or decreasing the level of acoustic emission by more than 5%, assess the irregularity of coal in the lower formation pack in the niches that have been passed beyond the natural extraction zone in the middle parts 1-5 of the lava ledges.
При увеличении акустической эмиссии выше безопасного уровн на 12 - 100% и величине удельной трещинова- тости 2-4 устанавливает, что определ ющим фактором при формировании выбросоопасной ситуации вл етс горное давление.With an increase in acoustic emission above the safe level by 12–100% and the value of specific fracture 2-4, it is established that the determining factor in the formation of an outburst-hazard situation is rock pressure.
При уменьшении активности акустической эмиссии ниже безопасного уровн на 30 - 100% и удельной трещиновато сти от 20 - 250 устанавливают , .что определ ющим фактором в формировании выбросоопасной ситуации вл етс газовый фактор. При значени х удельной трещиноватости. 0,5 - 4 мм признаков увеличени динамической и газодинамической активности не отмечаетс .When the acoustic emission activity decreases below the safe level by 30–100% and the specific fracture from 20–250, the gas factor is a determining factor in the development of an outbreak hazard situation. At specific fracture values. A 0.5 to 4 mm sign of an increase in dynamic and gas-dynamic activity is not observed.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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SU843820426A SU1234660A1 (en) | 1984-12-06 | 1984-12-06 | Method of forecasting outburst hazard of coal bed |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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SU843820426A SU1234660A1 (en) | 1984-12-06 | 1984-12-06 | Method of forecasting outburst hazard of coal bed |
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SU1234660A1 true SU1234660A1 (en) | 1986-05-30 |
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SU843820426A SU1234660A1 (en) | 1984-12-06 | 1984-12-06 | Method of forecasting outburst hazard of coal bed |
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102536324A (en) * | 2012-03-07 | 2012-07-04 | 山西潞安环保能源开发股份有限公司 | Coal mine production disaster early warning system |
CN102562156A (en) * | 2010-12-16 | 2012-07-11 | 河南理工大学 | Automatic concentration adjusting and controlling early warning method for underground gas extraction pipelines and system of automatic concentration adjusting and controlling early warning method |
CN103244186A (en) * | 2013-05-16 | 2013-08-14 | 安徽理工大学 | Identification, tracking and early-warning system based on coal and gas outburst development process |
CN103244187B (en) * | 2013-05-16 | 2015-12-23 | 安徽理工大学 | Coal and gas prominent breeds evolution early warning comprehensive index system |
CN108468850A (en) * | 2018-03-16 | 2018-08-31 | 田野 | The closed gas pumping control device of underground coal mine |
-
1984
- 1984-12-06 SU SU843820426A patent/SU1234660A1/en active
Non-Patent Citations (1)
Title |
---|
Инструкци по безопасному ведению горных работ на пластах, склонных к внезапным выбросам угл , породы и газа. - М.: Недра, 1977, с.21- 25. Авторское свидетельство СССР № 945472, кл. Е 21 F 5/00, Е 21 F 7/00, 1982. * |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102562156A (en) * | 2010-12-16 | 2012-07-11 | 河南理工大学 | Automatic concentration adjusting and controlling early warning method for underground gas extraction pipelines and system of automatic concentration adjusting and controlling early warning method |
CN102562156B (en) * | 2010-12-16 | 2014-02-12 | 河南理工大学 | Automatic concentration adjusting and controlling early warning method for underground gas extraction pipelines and system of automatic concentration adjusting and controlling early warning method |
CN102536324A (en) * | 2012-03-07 | 2012-07-04 | 山西潞安环保能源开发股份有限公司 | Coal mine production disaster early warning system |
CN103244186A (en) * | 2013-05-16 | 2013-08-14 | 安徽理工大学 | Identification, tracking and early-warning system based on coal and gas outburst development process |
CN103244187B (en) * | 2013-05-16 | 2015-12-23 | 安徽理工大学 | Coal and gas prominent breeds evolution early warning comprehensive index system |
CN103244186B (en) * | 2013-05-16 | 2016-06-22 | 安徽理工大学 | Identification and the tracking and early warning system of evolution is bred based on coal and gas prominent |
CN108468850A (en) * | 2018-03-16 | 2018-08-31 | 田野 | The closed gas pumping control device of underground coal mine |
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