RU97100403A - METHOD FOR STRENGTHENING BREEDS WITH BARS IN MINING - Google Patents

METHOD FOR STRENGTHENING BREEDS WITH BARS IN MINING

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Publication number
RU97100403A
RU97100403A RU97100403/03A RU97100403A RU97100403A RU 97100403 A RU97100403 A RU 97100403A RU 97100403/03 A RU97100403/03 A RU 97100403/03A RU 97100403 A RU97100403 A RU 97100403A RU 97100403 A RU97100403 A RU 97100403A
Authority
RU
Russia
Prior art keywords
rocks
mine
rods
contour
strengthening
Prior art date
Application number
RU97100403/03A
Other languages
Russian (ru)
Other versions
RU2132464C1 (en
Inventor
С.Б. Стажевский
В.Ю. Изаксон
В.Н. Власов
Д. Колимвас
Original Assignee
Институт горного дела Севера СО РАН
Filing date
Publication date
Application filed by Институт горного дела Севера СО РАН filed Critical Институт горного дела Севера СО РАН
Priority to RU97100403A priority Critical patent/RU2132464C1/en
Priority claimed from RU97100403A external-priority patent/RU2132464C1/en
Publication of RU97100403A publication Critical patent/RU97100403A/en
Application granted granted Critical
Publication of RU2132464C1 publication Critical patent/RU2132464C1/en

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Claims (5)

1. Способ укрепления пород штангами в горных выработках, включающий определения расположения систем трещин, образующих структурные блоки пород по геологическим разрезам в поперечном сечении, бурение наклонных шпуров с заглублением их за контур деформаций пород, установку в шпуры штанг, отличающийся тем, что наклонные шпуры бурят в плоскости сечения выработки с отклонением от нормали к ее контуру на угол α
α = π/4-(arctgf)/2,
где f - коэффициент крепости пород по шкале проф. Протодьяконова М.М., а длина наклонных шпуров определяется по формуле
Figure 00000001

где b ≅ 1,8-2,5 м - расстояние от контура выработки до внешней границы зоны наведенной трещиноватости вокруг выработки (b = 1,8 м для выработок, пройденных на глубинах до 800 м, b = 2,5 м для выработок, пройденных на глубинах более 800 м и в породах, находящихся в области повышенных напряжений).1. A method of reinforcing rocks with rods in mine workings, including determining the location of fracture systems that form structural blocks of rocks according to geological sections in cross section, drilling inclined holes with deepening them over the contour of rock deformations, installing drill holes in drill holes, characterized in that inclined holes are drilled in the plane of the cross section of the mine with a deviation from the normal to its contour at an angle α
α = π / 4- (arctgf) / 2,
where f is the rock strength coefficient on the prof. Protodyakonova M.M., and the length of inclined holes is determined by the formula
Figure 00000001

where b ≅ 1.8-2.5 m is the distance from the excavation contour to the outer boundary of the induced fracture zone around the excavation (b = 1.8 m for the excavations, drilled at depths up to 800 m, b = 2.5 m for the excavations, passed at depths of more than 800 m and in rocks located in the area of high stress). 2. Способ укрепления пород штангами в горных выработках по п. 1, отличающийся тем, что при наличии естественных систем трещин шпуры ориентируют по нормали к основной из них, опасной по сдвигам. 2. The method of strengthening rocks with rods in mine workings according to claim 1, characterized in that, in the presence of natural systems of cracks, the boreholes are oriented normal to the main one, which is dangerous by shear. 3. Способ укрепления пород штангами в горных выработках по п. 1, отличающийся тем, что при наличии выраженной трещиноватости и действия наибольшего сжимающего напряжения вокруг выработки, укрепляют те участки ее контура, которые совпадают с направлением этих напряжений. 3. The method of strengthening rocks with rods in mine workings according to claim 1, characterized in that in the presence of pronounced fracturing and the action of the greatest compressive stress around the mine, those sections of its contour that coincide with the direction of these stresses are strengthened. 4. Способ укрепления пород штангами в горных выработках по п. 1, отличающийся тем, что при выраженной естественной трещиноватости горных пород укрепление стенок выработки производят в областях контура, нарушенных естественной трещиноватостью без учета направления действия сжимающих напряжений. 4. The method of strengthening rocks with rods in mine workings according to claim 1, characterized in that, with pronounced natural fracturing of the rocks, the walls of the mine are strengthened in contour areas disturbed by natural fracture without taking into account the direction of compressive stresses. 5. Способ укрепления пород штангами в горных выработках по п. 1, отличающийся тем, что наклонные шпуры бурят с разворотом из плоскости выработки в сторону забоя под углом β = 10 - 30°.5. The method of strengthening rocks with rods in mine workings according to claim 1, characterized in that inclined bores are drilled with a turn from the production plane towards the face at an angle β = 10 - 30 ° .
RU97100403A 1997-01-14 1997-01-14 Method for stabilizing rock by rods in underground workings RU2132464C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU97100403A RU2132464C1 (en) 1997-01-14 1997-01-14 Method for stabilizing rock by rods in underground workings

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Application Number Priority Date Filing Date Title
RU97100403A RU2132464C1 (en) 1997-01-14 1997-01-14 Method for stabilizing rock by rods in underground workings

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RU97100403A true RU97100403A (en) 1999-02-27
RU2132464C1 RU2132464C1 (en) 1999-06-27

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2580124C1 (en) * 2015-02-19 2016-04-10 Общество с ограниченной ответственностью Научно-технический и экспертный центр новых экотехнологий в гидрогеологии и гидротехнике "НОВОТЭК" Method of creating protective shield in roof of designed mine works (versions)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111368359B (en) * 2020-02-25 2023-07-07 浙江大学城市学院 Tunnel plate crack buckling type rock burst judging method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2580124C1 (en) * 2015-02-19 2016-04-10 Общество с ограниченной ответственностью Научно-технический и экспертный центр новых экотехнологий в гидрогеологии и гидротехнике "НОВОТЭК" Method of creating protective shield in roof of designed mine works (versions)

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