Mining Engineering Services

From the first technical feasibility considerations and general issues of mine planning to closure and restoration, we are dedicated to providing economic and safe tailor-made solutions: To our many and varied successful international mining projects we count e.g. the realisation of a gas laboratory (CH4) in Turkey, construction of a shaft landing in Germany or consulting on the avoidance of rock burst in Russia.

DMT's vast engineering services cover all issues of mining engineering, from mine design through operation to mine closure, including:

  • Mine layout and extraction planning
  • Strata control / rock mechanics: detailed planning of all mine workings
  • Mine ventilation
  • Gas management, gas drainage and mine gas utilisation
  • Support design and bulk materials engineering
  • Planning of infrastructure and logistics
  • Water management
  • Design of sedimentation basins and heaps
  • Mine closure
  • Coking technology
  • Abandoned mining
  • Customized software engineering
Shaft hoisting technology
Shaft hoisting technology
Open pit mining
Open pit mining

Strata Control / Rock Mechanics

Strata control / rock mechanics can be a deciding factor in the success of any underground or open cast mining project, regardless of the type of raw mineral being exploited. In addition to the structure of the actual deposit, the geotechnical conditions often plays a defining role in the selection of a suitable mining method and thus of the entire mine planning. Using empirical, physical and numerical models we not only dimension all types of underground workings (shafts, landings, excavation areas, etc.) but also natural or artificial embankments etc. in opencast mines. As well as mine design work and geotechnical studies, we perform supplementary testing both in our laboratories and underground and provide construction supervision and development support in all mining fields.

Physical modelling technology
Physical modelling technology
Numerical modelling
Numerical modelling

Mine Ventilation & Gas Management

The suitable ventilation of mines, tunnels, sewage systems or other underground workings is essential for safe working conditions. As well as maintaining the supply of respirable air for the workforce, DMT provides solutions for important ventilation issues such as the control of hazardous gases, vapours or dusts, as well as heat and cold. In the field of gas control we offer our clients complete systems to avoid any hazards, such as gas outburst. This includes the provision of a gas laboratory for measurement of gas content as well as fast and competent on-site consulting in the event of an accident, e.g. a gas explosion. Our services include:

  • On site ventilation survey and gas measurement
  • Software-based planning of ventilation networks
  • Design of ventilation systems
  • Dimensioning and design of gas drainage systems
  • Reservoir modelling
  • Planning of preventative measures against gas outbursts
  • Provision of equipment for ventilation and degassing measures
  • Integrated gas management concepts
  • Training in mine ventilation and degassing

Anenometer measurement
Anenometer measurement
Ventilation maintenance
Ventilation maintenance

Mineral Extraction

The interaction of the individual components in extraction operations must be precisely coordinated in order to achieve a high level of productivity. Increasing exploitation performance and output are obviously central to this, as is the optimisation of operation processes pursuant to the numerous mining related and economic conditions. We provide both comprehensive mine planning and detailed engineering for extraction operations, all with one aim: enhancing the complex operations of your business. To achieve this DMT offers:

  • Underground measurements e.g. cuttability
  • Simulation of diverse extraction processes and machines
  • Mechanical and process engineering for mine development operations
  • Integrated concepts for new extraction operations
  • Optimisation of existing mining operations
Digger in open pit mining
Digger in open pit mining
Shearer in underground mining
Shearer in underground mining

Construction & Backfill Materials Engineering

The hydraulic and pneumatic transport of construction and backfill materials requires specific process engineering know-how. In the context of designing such transportation processes, all sub-processes and boundary conditions must also be taken into account and closely coordinated. This includes all the processes that come before as well as after the actual material transport: from material delivery and storage to material processing and right up to the conveyance and final application.

Our specialists in construction and backfill materials engineering work out the planning principles, support you in developing the composition of the mixture and also design and construct turnkey installations in cooperation with our partners.

Construction materials engineering
Construction materials engineering
Viscometer
Viscometer

Mineral Transport and Haulage

DMT has years of experience in designing haulage systems and carrying out cost-benefit analyses where appropriate to determine the necessary capacity of belt conveyors, trainsets, haulers and shaft haulage systems.

Ensuring overall efficiency by keeping costs and operational downtimes to a minimum is always our primary aim.

Mine Water Management

In our Hydrogeology and Water Management department we continue the work of the “Water Resources Management Office” founded in 1921 for the German hard coal mining industry. We investigate the impact that mine water drainage, facilities on the surface, tailings and waste dump sites exert on the amount and quality of groundwater and surface water. Our services are engaged from the planning stage of new projects right up to optimising existing operations. We support authorities and boards in fulfilling the specifications of the EU Framework Directive for Water (WFD).

Tributary in surface mining area
Tributary in surface mining area
BoxModel
BoxModel

Processing

Based on more than 100 years of processing experience, our engineers have extensive know-how of all kinds of raw materials. Whether processing trials to determine the basic data for process development, the detailed development of a process flow sheet or the subsequent Basic Engineering for the construction of new treatment facilities, we offer all manner of tailor-made processing solutions for new and existing operational plants. 

Mine Gas Utilisation

The methane in coal seam reservoirs is known by many names: firedamp, mine gas, coalbed methane (CBM), coal mine methane (CMM) or unconventional gas. In recent years it has also become known as a valuable natural resource for the generation of electricity and heat. One big advantage is that it can be captured in every phase of mining operations, be it before extraction of the actual coal reserve begins, during operation of the mine, after the mine has been abandoned or even exploited as a stand-alone resource from yet undisturbed seams. Not only does DMT engineer and deliver turnkey systems for the extraction, processing and utilisation of coalbed methane, we also customise our solutions to meet the special requirements of the deposit and the mine gas quality.

Mine gas engine
Mine gas engine
Cogeneration plant
Cogeneration plant