Guidebook for Evaluating Mining Project EIAs

1.1.3.1 Open-pit mining 4 1.1.3.2 Placer mining 5 1.1.3.3 Underground mining 5 1.1.3.4 Reworking of inactive or abandoned mines and tailings 5 1.1.4 Disposal of overburden and waste rock 5 ... 3.5.1.3 Stormwater, sediment and erosion control 58 3.5.1.4 Management of waste rock dumps 59 3.5.1.5 Management of open pits and pit lake prevention 60

The fight goes on for opponents of a Philippine mine given a new …

The ongoing saga at Tampakan highlights a recurring legal quandary vexing the Philippine mining industry and its 25-year-old mining law: the legitimacy of open-pit mining.

Mining | Free Full-Text | Geology and Mining: A Symbiotic

An extreme example is narrow-vein mining in open pits in Australia ... Artisanal and small-scale mining (ASM) in developing countries, which provides work for many more people than industrial mining, is coming under increasing pressure due to the requirements of industrialized consumer countries to improve social and environmental …

(PDF) Open-Pit Mine Dewatering Based on Water

The layout of the dewatering system in open-cast mining must be adapted to mining assumptions and to the size of expected inflows, which, in turn, depend on natural conditions and the operation of ...

Ecological Impact Analysis and Environmental Protection of Small Open

2.1 Introduction to Open Pit Mining Process. The production process of open-pit mining is as follows: the topsoil and vegetation covered on the surface of the ore body are cleaned. After the ore body is exposed, the ore body is generally loosened by blasting. The large ore loosened by blasting is crushed by a crusher.

Case Study on the Effects of Mining and Dams on the …

Open pit mining is the most destructive as it requires removing whole mountains and excavation of deep pits. ... Small-scale mining is a community affair and access to resources is defined by ...

Mining impact on communities' livelihoods: A case study of Taita …

Mining pits, poor rehabilitation and large-scale mining have caused a loss of agricultural land resulting in reduced crop yields and poor living standards. Some established mining companies in the area did not compensate, or share their accrued revenues nor did they support development projects as was expected.

Global mining footprint mapped from high-resolution satellite …

A Larger open pit operations ... all such countries. China hosts substantial small-scale mining, with ~16,676 small-scale ... Reserves and Production: Discovery Is Not the Only Control on Supply. ...

Surface Mining Methods and Equipment

The higher productivity for open pit mining equipment also lowers costs. The necessary underground equipment for maintaining productivity is more expensive on a unit basis capacity than corresponding open pit equipment. Furthermore, the large production scale and share number of open pit mines have provided the opportunity for manufacturing

12.9: Mining

The deepest open-pit mine in the world is Bingham Canyon Mine in Bingham Canyon, Utah, United States at over 1,200 meters (3,900 ft). The largest and second deepest open-pit copper mine in the world is Chuquicamata in Chuquicamata, Chile at 900 meters (3,000 ft), 940,600 tons of copper and 17,700 tons of molybdenum produced annually. Figure 8.

Recent Research Agendas in Mining Equipment …

Nowadays, with the advancement of technological innovations and wide implementation of modern mining equipment, research topics on mining equipment management are attracting more …

9.2 Open Pit Mines – Hydrogeology and Mineral Resource …

9.2 Open Pit Mines. At the end of an open pit operation, sump pumps and/or dewatering wells are decommissioned. The geometry of the pit and the void volume may be modified if partially backfilled with mine waste. Following cessation of pumping, in most climatic regimes, both surface water and groundwater will inflow to the pit, creating a pit ...

Safety & health in small-scale surface mines A handbook

• To protect workers in small-scale surface (open-pit) mines fro m safety and health hazards and risks in their work. • To prevent or reduce the incidence and severity of illness and injury in small-scale surface mines. • To promote training and consultation in improving safety and health in small-scale surface mines.

3.1 Mine Dewatering and Control of Water Pressures in Mine Workings

Figure 8 illustrates an open pit mining operation with effective seepage control, evidenced by the dry condition of the pit floor and walls, with only minor seepage apparent on the walls of the pit and at the pit floor. ... Figure 8 – Example of an open pit with effective groundwater control. The pit floor is far below the elevation of the ...

Optimising Productivity and Safety of the Open Pit Loading and

The open pit mining load and haul system has been a mainstay of the mining industry for many years. While machines have increased in size and scale and automation has become an important development, there have been few innovations to the actual load and haul process itself in recent times. This research highlights some of the …

Full article: Incorporating geological and equipment performance

Short-term production scheduling in open pit mining consists of defining the extraction sequence and process allocation of mineralised material over time-scales of either months, weeks, or days. ... This particular year of production can be easily separated into seven mining areas; two areas in the Small Pit (0 and 1) and the remaining five in ...

Artisanal and Small-Scale Mining as a challenge and possible

This highlights the importance of using a comprehensive approach that considers all aspects of sustainable development in studying small-scale mining. Given the significance of small-scale mining to the economies of many mining communities, it is crucial to develop clear regulations and guidelines that align with the principles of …

Open-Pit Mine Optimization with Maximum Satisfiability

In this paper, we show the applicability of maximum satisfiability to mining by specifying three fundamental problems in open-pit mine optimization. We show how …

Overburden management in open pits: options and limits in large

Over 90% of the mining activities in developed countries adopt open pit methods [5]. In large open pits, the orebody is usually found relatively close to the surface (thus ensuring overburden–to–ore ratios suitable for profitable mining operations) in sub-horizontal or slightly inclined deposits.

Full article: A research on dust suppression mechanism and application

At present, the open-pit coal production of China ranks second in the world (Wang Citation 2014) and is developing toward a large-scale direction.It has been proven that large-scale open-pit coal fields are concentrated in Xinjiang, Inner Mongolia, and other ecologically vulnerable areas (Jiskani et al. Citation 2021).Green mining is the theme of coal mining …

Ultimate pit optimization with environmental problem for open-pit …

The strategy entails assessing the significant ecological costs associated with open-pit coal mining, floating cone exclusion method, and iterative optimization …

mining in Ghana: identifying problems and possible solutions

An overview of small-scale gold mining Before proceeding with the case study, it is import-ant to clarify that small-scale gold-mining activities are not unique to Ghana, and are, in fact, wide-spread throughout Africa, Latin America and Asia (see Figure 1 for an overview of the locations of important small-scale gold-mining regions around the ...

What Is Open-Pit Mining? Definition and Environmental Impact

ARTISANAL MINING PRACTICES: A STUDY OF SELECTED COUNTIES IN KENYA

The study findings revealed that 38.1 percent and 31.2 percent of the respondents practiced underground mining and open surface mining respectively. Less than one percent of the respondents ...

CHALLENGES FACING ZAMBIA IN MANAGING …

The environmental impact of small-scale mining activities due to poor mining practices is severe and wide spread. In most cases, large areas of land have been abandoned with pits

Transparency on greenhouse gas emissions from mining to enable

While application of such technologies can be limited at operations such as open-pit mining, there are opportunities to implement mitigation technologies in underground mining to reduce GHG ...

Mining | Free Full-Text | A Framework for Open-Pit Mine

In-pit crushing and conveying (IPCC) systems have drawn attention to the modern mining industry due to the numerous benefits than conventional truck-and-shovel systems. However, the implementation of the IPCC system can reduce mining flexibility and introduce additional mining sequence requirements. This paper investigates the long …

Land Use Dynamic Evolution and Driving Factors of Typical Open-Pit …

Open-pit mining is the most commonly used method of coal mining because of its low cost and convenience; two thirds of the world's mineral resources are extracted via open-pit mining [17,18]. More than 50% of coal resources in the United States, Australia, Spain and other countries are mined in open-pit mines [19,20].

Mining 101: Open pits (mines of global scale)

The concept of an open-pit mine is both visually arresting and industrially significant. An open-pit mine, often referred to simply as an open pit, is a type of surface mining operation where minerals or rocks are extracted from a vast cavity in the ground. These man-made craters can become colossal in size, sometimes visible from space ...

Safety and health in small-scale surface mines: A handbook

Reference: 92-2-112475-4 [ISBN] Download: pdf - 0.4 . The objectives of this handbook are: to protect workers in small-scale surface (open-pit) mines from …