RU2002109808A - The method of developing powerful flat coal seams with hard-to-break rocks of the roof - Google Patents

The method of developing powerful flat coal seams with hard-to-break rocks of the roof

Info

Publication number
RU2002109808A
RU2002109808A RU2002109808/03A RU2002109808A RU2002109808A RU 2002109808 A RU2002109808 A RU 2002109808A RU 2002109808/03 A RU2002109808/03 A RU 2002109808/03A RU 2002109808 A RU2002109808 A RU 2002109808A RU 2002109808 A RU2002109808 A RU 2002109808A
Authority
RU
Russia
Prior art keywords
coal
layer
upper layer
drift
power
Prior art date
Application number
RU2002109808/03A
Other languages
Russian (ru)
Other versions
RU2219340C1 (en
Inventor
Иван Александрович Шундулиди
Константин Петрович Захарочкин
Владимир Андреевич Пуртов
Степан Илларионович Калинин
Игорь Борисович Коржов
Степан Николаевич Суховольский
Original Assignee
ОАО "Шахта им. Ленина"
Filing date
Publication date
Application filed by ОАО "Шахта им. Ленина" filed Critical ОАО "Шахта им. Ленина"
Priority to RU2002109808/03A priority Critical patent/RU2219340C1/en
Priority claimed from RU2002109808/03A external-priority patent/RU2219340C1/en
Publication of RU2002109808A publication Critical patent/RU2002109808A/en
Application granted granted Critical
Publication of RU2219340C1 publication Critical patent/RU2219340C1/en

Links

Claims (3)

1. Способ разработки мощных пологих угольных пластов с труднообрушаемыми породами кровли, включающий одновременную отработку двумя наклонными слоями в восходящем порядке длинными столбами с опережением нижним наклонным слоем верхнего на величину зоны активного сдвижения горных пород с отработкой обоих слоев на выработки нижнего слоя с последующим их погашением, отличающийся тем, что при отработке нижнего наклонного слоя угольный массив верхнего слоя в плоскости, проходящей по линии контакта штрека с очистным забоем, разупрочняют в зоне работы очистного комплекса, мощность нижнего наклонного принимают, исходя из коэффициента кратности соотношения верхнего слоя к нижнему, в пределах 2,2-3,8, при этом мощность верхнего слоя принимают не менее величины, определяемой из выражения1. A method of developing powerful shallow coal seams with hard-to-break rocks of the roof, including simultaneous mining of two inclined layers in an ascending order with long columns ahead of the lower inclined layer of the upper by the size of the zone of active displacement of rocks with mining of both layers to work out the lower layer with their subsequent repayment, characterized in that when mining the lower inclined layer, the coal mass of the upper layer in the plane passing along the line of contact of the drift with the working face is softened in the operation of the treatment complex, the power of the lower inclined take, based on the ratio of the ratio of the ratio of the upper layer to the lower, in the range of 2.2-3.8, while the power of the upper layer is taken at least as determined from the expression
Figure 00000001
Figure 00000001
 где МВС - мощность верхнего слоя, м;where M BC - the power of the upper layer, m; МНС - мощность нижнего слоя, м;M NS - the power of the lower layer, m; КР - коэффициент разрыхления угля, равный 1,4.To P - coefficient of loosening of coal, equal to 1.4. 2. Способ разработки по п.1, отличающийся тем, что при разупрочнении угольного массива верхнего слоя частично разупрочняют верхнюю часть угольного целика над выемочным штреком, снимая напряжения и разгружая угольный целик и крепь штрека от горного давления.2. The development method according to claim 1, characterized in that when softening the coal mass of the upper layer, the upper part of the coal pillar is partially softened above the excavation drift, relieving stress and unloading the coal pillar and the support of the drift from rock pressure. 3. Способ разработки по пп.1 и 2, отличающийся тем, что разупрочнение угольного массива на границах выемочных штреков с очистным забоем производят либо путем взрывания шпуровых зарядов ВВ камуфлетного типа, либо путем гидроразрыва пласта, либо путем комбинированного воздействия на угольный массив гидростатическим напором воды и энергии взрыва ВВ.3. The development method according to claims 1 and 2, characterized in that the softening of the coal mass at the boundaries of the drift drifts with a working face is carried out either by blasting blast-hole explosive charges of the camouflage type, or by hydraulic fracturing, or by combined exposure of the coal mass to hydrostatic water pressure and explosive energy.
RU2002109808/03A 2002-04-15 2002-04-15 Process of development of gently dipping coal formations with roof rocks difficult to fall RU2219340C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU2002109808/03A RU2219340C1 (en) 2002-04-15 2002-04-15 Process of development of gently dipping coal formations with roof rocks difficult to fall

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU2002109808/03A RU2219340C1 (en) 2002-04-15 2002-04-15 Process of development of gently dipping coal formations with roof rocks difficult to fall

Publications (2)

Publication Number Publication Date
RU2002109808A true RU2002109808A (en) 2003-10-20
RU2219340C1 RU2219340C1 (en) 2003-12-20

Family

ID=32066288

Family Applications (1)

Application Number Title Priority Date Filing Date
RU2002109808/03A RU2219340C1 (en) 2002-04-15 2002-04-15 Process of development of gently dipping coal formations with roof rocks difficult to fall

Country Status (1)

Country Link
RU (1) RU2219340C1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110017140B (en) * 2019-04-11 2021-01-29 天地科技股份有限公司 Method for preventing and treating coal pillar compression type rock burst
CN110185448A (en) * 2019-05-19 2019-08-30 中铁十九局集团矿业投资有限公司 A kind of ground fracturing and underground blasting control deep orebody rock burst method
CN110878694B (en) * 2019-12-13 2021-06-04 山东科技大学 Protection method for mining-influenced impact dangerous roadway during overhaul
CN111411962A (en) * 2020-03-13 2020-07-14 陈卫军 Coal mine rock burst treatment method
CN112253113B (en) * 2020-09-10 2023-04-07 中煤科工集团西安研究院有限公司 Method for weakening hard gangue layer by coal mine underground directional long drilling and staged hydraulic fracturing

Similar Documents

Publication Publication Date Title
RU2002109808A (en) The method of developing powerful flat coal seams with hard-to-break rocks of the roof
RU96106644A (en) METHOD FOR DEGRASING COAL LAYERS
RU2306417C2 (en) Underground mineral mining method
RU2001118598A (en) A method for the development of co-occurring steeply dipping low-power ore bodies in stable and moderate formations
CN113107583A (en) Thick and hard roof high-gas coal seam gas extraction system and extraction method
RU2011822C1 (en) Method for roof control
SU611001A1 (en) Method of borehole hydraulic winning
SU1642005A1 (en) Method of mining ore deposits
RU2002102083A (en) The method of developing powerful flat coal seams
RU2099526C1 (en) Method for mining of gently dipping contiguous potassium beds
SU825962A1 (en) Method of controlling hard-to-cave roofs
SU125787A1 (en) Method for developing thin and low-powered steeply dipping seams
SU1177484A1 (en) Method of controlling solid roof prior to primary settling in mining sloping coal beds
SU1401130A1 (en) Method of solid roof control
SU889854A1 (en) Method of working adjacent explosion-hazardous beds
SU1585519A1 (en) Method of creating a zone of gentle sloping of roof
SU1180503A1 (en) Method of driving entry mine workings
SU750071A1 (en) Method of preparing excavation pillars
SU1082953A1 (en) Method of mining gently-sloping coal seams
SU1151673A1 (en) Method of mining adjoining coal seams
SU983273A1 (en) Method of protecting a preparatory working
SU1375834A1 (en) Method of driving mine workings through outburst-hazardous areas of rock body
SU715795A1 (en) Method of mining thick sloping coal beds
SU1104289A1 (en) Method of fighting ground swelling in development workings in pillarless working of strata
SU1317149A2 (en) Method of protecting coal seam from rock bursts and sudden coal and gas outbursts