RU2009106841A

RU2009106841A - METHOD FOR UNDERGROUND SALES DEVELOPMENT

Info

Publication number: RU2009106841A
Application number: RU2009106841/03A
Authority: RU
Inventors: Климент Николаевич Трубецкой (RU); Климент Николаевич Трубецкой; Юрий Павлович Галченко (RU); Юрий Павлович Галченко; Георгий Васильевич Сабянин (RU); Георгий Васильевич Сабянин
Priority date: 2009-02-27
Filing date: 2009-02-27
Publication date: 2010-09-10
Also published as: RU2403388C1

Abstract

1. Способ подземной разработки соляных пластов, включающий в себя вскрытие, подготовительные, нарезные и очистные работы, управление горным давлением и систему защиты горных выработок от затопления путем сохранения естественной непроницаемости природных водоупоров, отличающийся тем, что месторождение или его часть отрабатывают в три стадии, на первой стадии месторождение или его часть разделяют на выемочные единицы, с запасами кратными годовому объему добычи предприятия, путем возведения по контуру вертикальных водоохранных искусственных массивов, водонепроницаемость которых обеспечивают за счет трехслойного их строения в виде двух вертикальных слоев твердеющей закладки и расположенного между ними слоя калийной соли с горизонтальной водосборной выработкой в нижней части; на второй стадии отрабатывают по всей площади выемочного участка горизонтальный слой переменной мощности на верхней границе пласта и формируют из твердеющей закладки водоохранный горизонтальный искусственный массив, водонепроницаемость которого обеспечивают за счет наклона его верхней поверхности и проведения водосборной горизонтальной выработки вдоль края искусственного массива с минимальной толщиной; на третьей стадии ведут последовательную отработку запасов выемочной единицы с использованием известной камерно-целиковой технологии. ! 2. Способ по п.1, отличающийся тем, что при отработке запасов выемочной единицы, оконтуренной вертикальными и горизонтальными водоохранными искусственными массивами, междукамерные целики делают трехслойными в виде центрального закладочного массива и вертикальных защитных слоев из кал 1. The method of underground mining of salt formations, including opening, preparatory, rifling and treatment works, managing rock pressure and a system for protecting mine workings from flooding by preserving the natural impermeability of natural water confines, characterized in that the field or part of it is worked out in three stages, at the first stage, the field or a part of it is divided into extraction units, with reserves that are multiples of the annual volume of production of the enterprise, by erecting vertical water protection arts along the contour nnyh arrays, which provide water resistance due to their three-layer structure in the form of two vertical layers of settable bookmarks and disposed therebetween a layer of the potassium salt with the horizontal catchment generation at the bottom; at the second stage, a horizontal layer of variable thickness is worked out over the entire area of the excavation section at the upper boundary of the formation and a horizontal water-resistant artificial massif is formed from the hardening tab, the water resistance of which is ensured by tilting its upper surface and holding a horizontal drainage along the edge of the artificial massif with a minimum thickness; in the third stage, sequential mining of reserves of the extraction unit is carried out using the well-known chamber-whole technology. ! 2. The method according to claim 1, characterized in that when mining reserves of a mining unit contoured by vertical and horizontal water-protected artificial arrays, inter-chamber pillars are made three-layer in the form of a central filling array and vertical protective layers of cal

Claims

1. The method of underground mining of salt formations, including opening, preparatory, rifling and treatment works, managing rock pressure and a system for protecting mine workings from flooding by preserving the natural impermeability of natural water confines, characterized in that the field or part of it is worked out in three stages, at the first stage, the field or a part of it is divided into extraction units, with reserves that are multiples of the annual volume of production of the enterprise, by erecting vertical water protection arts along the contour nnyh arrays, which provide water resistance due to their three-layer structure in the form of two vertical layers of settable bookmarks and disposed therebetween a layer of the potassium salt with the horizontal catchment generation at the bottom; at the second stage, a horizontal layer of variable thickness is worked out over the entire area of the excavation section at the upper boundary of the formation and a horizontal water-resistant artificial massif is formed from the hardening tab, the water resistance of which is ensured by tilting its upper surface and holding a horizontal drainage along the edge of the artificial massif with a minimum thickness; in the third stage, sequential mining of reserves of the extraction unit is carried out using the well-known chamber-whole technology.

2. The method according to claim 1, characterized in that when mining the reserves of a mining unit contoured by vertical and horizontal water-protected artificial arrays, inter-chamber pillars are made three-layer in the form of a central filling array and vertical protective layers of potassium salt on both sides of it.

3. The method according to claim 1, characterized in that when mining a pack of potash salt strata and the presence of one of the mineral deposits in the roof of the main stratum or a pack of strata of substandard power, a horizontal water protection artificial massif of variable thickness is formed by mining and laying the closest to the main less a powerful layer, to the soil level of which all vertical water-protected artificial massifs are erected.