Analysis of the application scope and advantages and disadvantages of three operating modes of open-pit mining

Scope of application: The geological conditions of the mine are simple, the mining process is not complicated, and the general contractors are mostly regional construction enterprises.

Advantages: Owners can reduce the total one-time investment, while reducing risk; The general contractor needs to invest equipment and manpower to become a professional mine operation and management contractor, and often subcontracts the project to the construction team, adopts the project management method and decentralized management, which reduces the capital and management pressure for the general contractor and reduces the risk at the same time.

Disadvantages: The general contractor will subcontract each part of the mining, which increases the management cost of the general contractor and also forms an obstacle to the centralized management of the owner.

2.3 Small construction team

Because of local interpersonal relations, small construction teams obtain mine operation contracts, only the ability to maintain local construction, and the output can not be larger. Transport fleets are often recruited due to funding problems. Because of the low cost, usually such engineering construction technology can not be in place, the site often has safety hazards, the construction team boss only sends supervisors to manage the on-site migrant workers, neither professional engineering and technical personnel, nor investment in mine special equipment, so generally lack of enterprise management, comprehensive utilization of resources and long-term consideration of safe production.

Scope of application: fewer mines, simple mining process, short-term contracts, such as due to local interpersonal relations, not easy to terminate the contract.

Advantages: Mine owners can use the lowest cost, get rich profit returns, generally no professional and technical personnel, most of the construction content subcontracting, the lowest cost.

Disadvantages: The mining site is messy, most do not comply with regulations, low cost, high profits have various safety hazards.

Under the mining general contract mode, the owner only needs to play the role of supervision and supervision in the mining process, and can play the advantages of owning mine resources and capital advantages, while the mining general contractor can play the advantages of technology and production management, and the two sides complement each other.

Although the general contract mode of open-pit mining minimizes the one-time investment and optimizes the mining process, it also has shortcomings, such as ore quality management is easy to be controlled by others. Therefore, the supervision and management team of the owner is crucial, and it must be dedicated and have high professional ability and management level. Only in this way can the risks brought by the mining general contract be effectively avoided.

Third, open-pit mining and contract both mode

The mode of both self-operation and contracting is a transitional state of enterprise operation.

From the perspective of the development history of enterprises, such mining enterprises began to take self-mining as their business model, and because of enterprise acquisition, merger and reorganization, they contracted some links to professional mining teams, often continuing the original contract or mine self-operating personnel team. Therefore, if the needs of operation quality and safe production are considered, the professional contractor mode of the mine is considered. If the operating cost is considered, the owner can also recover the mine operation.

Scope of application: mining enterprises face merger and reorganization.

Advantages: The mining operation will be divided into regions or work processes, and specific problems will be dealt with in detail, and this transitional operation mode will eventually develop in the direction of collective general contracting.

Disadvantages: Management quality can not be unified, there are security risks.

The safety risk of mine production itself is large, so for many mining enterprises, when deciding whether the mine is independent mining or general contract mining, it is necessary to make a comprehensive and detailed comparison, analysis and investigation, taking into account their own management, technology and construction capabilities, but also a comprehensive investigation of the current situation of the mining contract market, the comprehensive ability of contractors, market prices, etc. The maximum economic benefits can be obtained only by reasonably evaluating the operating costs and operating risks under various alternative mine operating modes and making decisions that fit the actual situation.