Mining & Management Consulting

Our Projects

We proudly present some of our references:

Source: Von Avda - Eigenes Werk, CC BY-SA 3.0

RAG AG, Essen, GERMANY - World Heritage Site Zollverein - Modification of a Central Mine Drainage Station to Backup Site for Eternity

Currently on Zollverein main drainage station underground installed pumps are under operation. The underground pumping station is installed on 14th level which is approximately -950 m asl. The water quantity which had to be pumped on average during the last five years amounted to 12.4 m³/min. The mine water is pumped through two standpipes with 500 mm diameter installed in Zollverein 2 shaft to the surface and further to Emscher river which is used as open sewage duct. Thereby, the water containing sulphate coming from the southern area (approx. 7.5 m³/min) and the barium-containing water coming from the northern area (approx. 4.9 m³/min) are pumped separately.

The two shafts Zollverein 2 and Zollverein XII have to be modified into wells as dewatering backup sites by using cladding tubes in Zollverein 2 and a concrete advancing column in Zollverein XII when in 2020 the current dewatering discharge authorization into the Emscher expires. Both cladding and well tube should reach up to a depth of 650 m.

Activity Performing:

  • Project Management on World Heritage Site Zollverein - Modification of a Central Mine Drainage Station to Backup Site for Eternity (Planning and Construction)

Skorpion Zinc Mines, NAMIBIA - Optimisation of Energy Consumption

In Namibia the mining industry is one of the major energy consumers. Since energy costs negatively influence the operating costs of the mines, in particular the processing plants, they invariably result in an overall increase of production costs. A substantial part of this energy is directly imported from South Africa, the cost of which has been increasing rapidly in the past years and will most likely continue on the same path in the years to come.

Consequently, the major target of the Namibian mines currently is to address possible energy savings challenges and to investigate possibilities for the mines to generate their own electricity during peak times. This is in alignment with the mines’ strategic plan and objective to minimise the total energy costs through the reduction of energy consumption from both the national and foreign power grids. We reported on some of the key energy consumption optimization challenges addressed through a case study carried out in cooperation with Skorpion Zinc Mines and Refinery. In particular, we investigated the recovery and re-use of waste process energy and the production of additional energy from solar to decrease the demand of electricity import.

Rudnik Uglja A.D. Pljevlja, MONTENEGRO - Reserve Calculation and Mining Feasibility Study

The Government of Montenegro and the Shareholders considered constructing a new Thermal Power Plant (TPP) to replace the existing unit. This investment decision should be based on a new calculation of the remaining coal resources and reserves of the Coal Mine Pljevlja as well on an updated calculation of the coal production cost. The task was to provid a technical and economic evaluation of coal resources and reserves for the Coal Mine Pljevlja, for developing optimization measures to reduce the current coal production cost as well as for a calculation of coal production cost for different production scenarios.

Activities performed: 

  • Evaluation of resources and Lignite resources calculation according to JORC
  • Technical and economical assessment
  • Evaluation of mine infrastructure, transportation and community development
  • Mine planning and optimization of operations
  • Cash-Flow Calculations
  • Development and evaluation of draft mining and supply contracts
  • Development of corporate business concepts for mining projects
  • Development and evaluation of draft mining and supply contracts
  • Recommendations for and supervision of infill drilling program
  • Performance of a Feasibility Study serving as basis for investment decision

Erdenes Mongol LLC, MONGOLIA – Strategic Planning

The objective of this project is to provide a comprehensive assessment of internal and external data to define the economic and technical condition of Erdenes MGL and its subsidiaries. For the development and implementation of future strategies and policies, the distinct shareholding situation of each subsidiary needs to be taken into account to assure the long-term viability of Erdenes MGL.

Activities performed:

  • Due diligence and feasibility studies for international mining projects
  • Evaluation of mine infrastructure transportation and community development
  • Workers’ health and safety, training of health and safety experts
  • Mine planning and optimization of operations under economic and operational aspects
  • Beneficiation and processing in mining for (Coal, Copper, Gold, Uranium, Pb, Zn and rare earth
  • Procurement and claim management
  • Investment strategy for mining and energy projects; cash-flow calculations
  • Development of corporate business concepts for mining projects
  • Community development aspects in mining
  • Optimization of environmental aspects in mining, international best practice
  • Process water management

Doğançay Hydroelectricity, TURKEY - Plant Construction

A major task of Doğançay Hydroelectricity Plant Construction Project is the drivage of the about 7 km long power tunnel by using a Tunnel Boring Machine (TBM). Due to weak rock mass, the TBM has been jammed three times on the first 4 km.

Activities performed:

  • Recommendations for adjustments of the Hydropower Tunnel TBM drivage based on site inspection.

Sustainable Mining NamDeb, NAMIBIA- Conventional Open Pit Mining versus Concurrent Open Pit Mining

Concurrent mining describes backfilling one zone while depleting subsequent zones for production purpose. This leads to the following challenges.

  • If the Bedrock cleaning process is delayed then backfilling will be halted
  • A shortage of haul trucks, means priority is to feed the process plant, this results in the concurrent cycle being interrupted,
  • When the process plant is unavailable you have to stockpile material, and the concurrent cycle is interrupted because there is no waste/ oversize to backfill depleted zones.

Objectives of the study are to

  • Investigate and demonstrate the feasibility, challenges as well as advantages of Sustainable Open Pit Concurrent Mining versus Conventional open pit mining
  • Establish the conditions under which concurrent Mining open pit mining may be implemented as opposed to Conventional Open Pit Mining and why Mining companies currently opt for the latter

Okorusu Fluorspar Mine E-Deposit, NAMIBIA - Feasibility Study

The Okorusu Fluorspar mine explored a new fluorite deposit starting 2009. An independent South African Company, Geotech Africa, was asked to develop an open pit mining concept after modelling the E-deposit based on the raw drillhole data in 2013. The design proposed was basic and required further investigation into the viability of the mining concept. Due to existing open pit operations, the company proposed a study on the viability of exploiting the deposit using underground mining methods and the existing surface mining equipment The primary objective of this study is to serve as a scoping study through investigation of underground mining method concepts in terms of technical and economic viability and feasibility, given the challenging nature of the E-Deposit as well as possible further use of surface mining equipment. It will serve as a first scope optimisation study to indicate the viability of mining underground with existing equipment.

Ministry of Land, Mines and Energy, LIBERIA - Capacity Building

Within a World Bank fundet Project the Consultant provided technical expertise to the MLME and developed and strengthened its capacities. The Consultant developed training concepts for economic capacity building regarding, amongst others, mine inspection as well as health, safety and environment (HSE).

Furthermore, he prepared and conducted a training program to strengthen the staff and support them in financial management and governance issues. The program was provided in several training sessions, which were held during the the Consultant’s site visit in Liberia. The staff was given practical exercises to improve and test the earned knowledge.

Activities performed:

  • Capacity building with regard to reviewing and assessing investment proposals
  • Capacity building with regard to fulfilling regulatory functions and monitoring the compliance with sector policies and contractual obligations in mining
  • Reviewing taxation and the fiscal system in the mining sector
  • Providing technical advisory services
  • Preparing workshops and conducting on-the-job trainings on the basis of real data and actual project experiences
  • Designing training and capacity building plans

ODAS Group, TURKEY - Mine Planning for the Can Karliköy Lignite Deposit

An infill drilling and sampling program was performed to update calculations of lignite resources by Turkish Coal Enterprises (TKI) for the Can Carliköy lignite deposit. The accomplished additional exploration work aimed at the calculation and classification of lignite resources and reserves according to the international reporting standard JORC.

Moreover, the Client intended to invest in a mine mouth thermal power plant (TPP). The Consultant prepared a mine plan for open pit and underground lignite mining in compliance with the lignite quality requirements of the TPP.

Activities performed:

  • Evaluation of resources and reserves
  • Recommendations for and supervision of infill drilling program
  • Lignite resources and reserves report according to JORC
  • Mining concepts and mine planning.
  • Process water management
  • Beneficiation and processing in mining
  • Recommendation for the sustainable development of the mining field.

Kazakhmys Corporation, KAZAKHSTAN - Optimization of Copper Ore Production in Zhezkazgan

The mining operator Kazakhmys Corporation encountered extremely high costs for the maintenance of the technical equipment. This was due to inaccurate drillings, the use of too much explosives, insufficient road construction and lack of maintenance.

The Consultant´s task was the investigation of the causes of the high costs and the elaboration of cost reducing measures.

Activities performed:

  • Design
  • Calculation
  • Bidding process
  • Contract negotiations
  • Detailed design
  • Contract management
  • Economic evaluation of the production process and elaboration of cost optimizing measures

Taberg Ost GmbH, Dresden, GERMANY - Reopening of Shaft 75– Uranium Mine Schneeberg

After the remediation of a part of the Markus Semmler adit in the south east of the shaft 'Weißer Hirsch' between 2005 and 2008, Wismut GmbH, which is organising the remediation of the old Wismut uranium mines on behalf of the state of Saxony. intended to continue the remediation works in the south east of the uranium deposit Schneeberg. For the remediation, the creation of surface openings for transportation, local water supply and ventilation / air conditioning was necessary. In this context, shaft 75 needed to be reopened.

Activities performed:

  • Design
  • Calculation
  • Preparation of tender documents under consideration of mining law
  • Consideration of environmental law and corresponding approval procedures
  • Tendering of services.