SU922281A1

SU922281A1 - Mine roof control method

Info

Publication number: SU922281A1
Application number: SU802972644A
Authority: SU
Inventors: Валерий Николаевич Белозерцев; Виктор Алексеевич Тищенко; Станислав Владимирович Антюхов; Александр Сергеевич Подтыкалов
Original assignee: Коммунарский горно-металлургический институт
Priority date: 1980-08-13
Filing date: 1980-08-13
Publication date: 1982-04-23

Description

Изобретение относится к горной промышленности и предназначено для управления кровлей при разработке угольных пластов.The invention relates to the mining industry and is intended for roof management in the development of coal seams.

Известен способ управления кровлей при разработке угольных пластов длинными столбами, включающий подачу в призабойное пространство из выработок ряда пневмобаллонов и последующее извлечение завального ряда пневмобаллонов с обрушением кровли [1] .There is a method of controlling the roof in the development of coal seams with long columns, including feeding into the bottomhole space from the workings of a number of pneumocylinders and the subsequent extraction of a blocking row of pneumocylinders with collapse of the roof [1].

Однако этот способ недостаточно эффективен в определенных горно-геологических условиях.However, this method is not effective enough in certain mining and geological conditions.

Известен способ управления кровлей при разработке угольных пластов длинными столбами, включающий подачу в призабойное пространство из выработок ряда пневмобаллонов, последующее извлечение завального ряда пневмобаллонов с обрушением кровли и установку рядов через расстояние, равное шагу обрушения кровли [2].A known method of controlling the roof in the development of coal seams with long columns, including feeding into the bottomhole space from the workings of a number of pneumocylinders, subsequent extraction of an obstructed series of pneumocylinders with collapsing the roof and installing rows through a distance equal to the step of the collapse of the roof [2].

Однако известный способ также характеризуется недостаточной эффективностью управления кровлей.However, the known method is also characterized by insufficient efficiency of roof management.

Целью изобретения является повышение эффективности управления кров³ лей.The aim of the invention is to increase the efficiency of management of shelter ³ lei.

Поставленная цель достигается тем, что подачу пневмобаллонов осуществляют одновременно из двух подготовительных выработок к середине призабой¹⁰ ного пространства и извлекают обратно.This goal is achieved by the fact that the supply of pneumocylinders is carried out simultaneously from two preparatory workings to the middle of the bottom hole ¹⁰ th space and is removed back.

Способ осуществляется следующим образом.The method is as follows.

Угольный пласт отрабатывают длинными столбами с выемкой угля, например, скрепер-стругом. При выемке угля в призабойном пространстве размещают ряд пневмобаллонов, подавая их одновременно из двух подготовитель_Λ ных выработок при помощи лебедок, установленных в этих выработках.The coal seam is worked out by long pillars with a coal recess, for example, a scraper-plow. When the recess in the coal face opening is placed a number of air bellows, feeding them simultaneously from two preparer _Λ GOVERNMENTAL workings using winches installed in these workings.

После продвижения забоя на шаг обрушения кровли в призабойном пространстве таким же образом снова раз3 '922281 мещают ряд пневмобаллонов, подавая их одновременно из двух подготовительных выработок к середине призабойного пространства, и завальный ряд извлекают на подготовительные выработки в обратном порядке, при этом управление кровлей осуществляют от середины призабойного пространства к подготовительным выработкам. В последующем цикл операций повторяют. Предлагаемый способ позволит значительно повысить эффективность управления кровлей.After the face is advanced to the step of the roof collapse in the bottomhole space in the same way, a number of pneumocylinders are again placed3'922281, feeding them simultaneously from two preparatory workings to the middle of the bottom-hole space, and the blocking row is removed to the preparatory workings in the reverse order, while the roof is controlled from the middle of the bottom hole to the preparatory workings. Subsequently, the cycle of operations is repeated. The proposed method will significantly improve the efficiency of roof management.

Claims

The invention relates to the mining industry and is intended to control the roof when developing corner seams. There is a known method for controlling the roof when developing coal seams with long pillars, which include feeding into the bottom hole area from the workings of a number of pneumatic cylinders and subsequent extraction of a bulk of pneumatic cylinders with a collapse of the roof 1. However, this method is not effective enough in certain geological conditions. There is a known method of roof control in the development of coal seams with long pillars, which include feeding into the bottomhole space from workings of a number of pneumatic cylinders, subsequent extraction of a damming series of pneumatic cylinders with a collapse of the roof and placing the rows through the roof 2. However, the known method is also characterized by insufficient effective control of the roof. The aim of the invention is to increase the efficiency of roof management. The goal is achieved by supplying air bellows simultaneously from two preparatory workings to the middle of the bottom hole and retrieved back. The method is carried out as follows. Coal gshast work out long pillars with a notch coal, for example, measures, scraper strugomu. When coal is excavated, a number of air bellows are placed in the borehole space, feeding them simultaneously from two preparatory workings with the help of winches installed in these workings. After advancing the bottom by the step of roof collapse in the wellbore space, a number of pneumatic cylinders are again placed in the same way, feeding them simultaneously from two preparatory workings to the middle of the wellbore space, and the bucket line is extracted to the preparatory mine workings in the reverse order, while controlling roofing is carried out from the middle of the bottomhole space to the preparatory workings. In the following, the cycle of operations is repeated. The proposed method will significantly increase the efficiency of roof management. Claims of the Invention The method of controlling the roof during the development of coal seams with long pillars, including the flow in prefab space from the workings of vV ... r yes air bellows, the subsequent removal of a burial r yes air bellows with a roof collapse and placing rows at a distance equal to the roof collapse step, which is different from that simultaneously from the two preparatory workings to the middle of the bottomhole formation and removed back. Sources of information taken into account during the examination 1. USSR author's certificate tf 120781, cl. E 21 S, 1972.

2. USSR author's certificate ff 706532, cl. E 21 C 1 / Oi, 1978 (prototype).