Mine Construction and Shaft Sinking

Mine Construction Alliance S.R.O. carries out mine sinking works in the construction, development, and reconstruction of underground mining facilities.

The company's key area of work is the construction and deepening of vertical mine shafts, the sinking of horizontal and inclined mine workings, their support and reinforcement, and the creation of the related underground infrastructure.

Vertical Mine Shafts

The company carries out the construction and deepening of vertical mine shafts for various functional purposes.

The scope of works is determined by the project and may include shaft sinking, support, reinforcement, the arrangement of shaft junctions and chambers, the installation of shaft infrastructure elements, and preparation of the shaft for subsequent process operations.

A vertical shaft is part of a unified underground complex, so its construction is coordinated with solutions for the transport of people and materials, the hoisting of rock mass, engineering utilities, and the further development of mining operations.

Deepening of Operating Shafts

A separate area of work is the deepening of existing mine shafts as part of the development of operating mining enterprises.

Such works require the new section of the shaft to be coordinated with the existing structures, shaft equipping, underground horizons, and process infrastructure of the enterprise.

Mine Construction Alliance S.R.O.'s practical experience includes the project to deepen the Glavny shaft at the Zarmitan mine.

Horizontal and Inclined Mine Workings

The company's competencies cover the sinking of horizontal and inclined mine workings required to form the underground transport, process, and engineering infrastructure.

Such facilities include adits, crosscuts, drifts, inclines, raises, chambers, and other workings provided for by the mining enterprise’s project.

The specific scope and technology of the works are determined by mining and geological conditions, the purpose of the working, and the project's design solutions.

Support and Reinforcement

Sinking is considered together with ensuring the stability and the subsequent technical equipping of the mine working.

Depending on the project's design solutions, the works performed include support of the workings, installation of permanent structures, and reinforcement of mine shafts.

The type and parameters of the support are determined by the design documentation, taking into account geological conditions, the geometry of the working, loads, and the requirements of further operation.

Underground Infrastructure

The construction of a mine shaft or a separate mine working is linked to the formation of a complex of underground structures and utilities.

Such solutions may include near-shaft workings, chambers for various purposes, transport routes, engineering utilities, and other elements required for the operation of the underground facility.

This makes it possible to coordinate sinking works with the construction and process parts of the project.

Practical Experience at the Zarmitan Mine

Mine Construction Alliance S.R.O.'s practical experience in mine construction in Uzbekistan is confirmed by works at the Zarmitan mine of JSC Navoi Mining and Metallurgical Combinat.

The company's portfolio includes three separate facilities:

— construction of the Skipovoy vertical shaft;

— deepening of the Glavny shaft;

— construction of the No. 10 “Slepoy” vertical shaft.

Each of these facilities is presented on the website as a separate project with its own scope of works and technical characteristics.

Scope of Works

Mine sinking works may be carried out in interconnection with design, construction, reconstruction, and the installation of specialized equipment.

This approach makes it possible to take into account the interdependence of the mine shaft, mine workings, building structures, engineering utilities, and process equipment within the overall project scheme.

The actual scope of works for each facility is determined by the design documentation, technical requirements, and the conditions of the specific mining enterprise.