How Is Coal Mining Detected

Sensors | Free Full-Text | DRA-UNet for Coal Mining Ground …

Coal mining in the Loess Plateau can very easily generate ground cracks, and these cracks can immediately result in ventilation trouble under the mine shaft, runoff …

A Novel Index to Detect Opencast Coal Mine Areas From …

This paper presents a novel index to detect surface coal mines. Coal quarry and coal dump regions are considered as the true positive regions. The accuracy of the …

Coal mining

Coal mining - Underground, Surface, & Drilling: The various methods of mining a coal seam can be classified under two headings, surface mining and underground mining. Surface and underground coal mining are broad activities that incorporate numerous variations in equipment and methods, and the choice of which method to use in …

Canaries in a Coal Mine

These are called sentinel animals or indicator species. A dog barking at noises that people cannot hear is an obvious example. More interesting are certain species in a marine environment that are sensitive to low levels of pollution. For more than a century canaries were used in coal mines to detect toxic gases.

Coal mine detect and rescue robot technique research

Coal mine is a dangerous field, various fatal factors menace people. The rescuers have known the mine tunnel actual situation when a disaster in coal mine occurs. Especially, it is very dangerous to go into the tunnel without detect in advanced because second explosion may occur at any time. Aiming to the task, the rescue robot can be sent to explosion …

Geological exploration of coal mine burnt rock and …

Introduction. Burnt rocks rich in water may threaten the safe production of coal mines, making it crucial to identify the boundaries of burnt rocks and water-rich …

Respiratory Diseases Caused by Coal Mine Dust

Coal is an important global commodity and will remain so for the foreseeable future. Thus, mining of coal will also remain important. Despite improvements in exposure assessment and ventilation controls and the existence of protective government regulations, coal miners are still at risk for respiratory diseases caused by coal mine dust and their associated …

Historical Treasure: Coal mining safety lamp detected …

Coal mine disasters have plagued this state for well over a century with two of the state's worst disasters occurring here in Vigo County, most recently in March 1961 at the Viking Mine about 8 ...

Diversity Analysis of an Extremely Acidic Soil in a Layer …

The soil sample was a composite of 5 bulks of soil. They were collected randomly within 10cm- thickness of top soil. The site is a coal mine located in Muara Tigo Besar Utara, managed by Bukit the

Large methane leak detected over South Africa …

A cloud of methane was detected by satellite near coal mines in South Africa, drawing attention to a lesser-known environmental risk that comes from using the dirtiest fossil fuel.

Coal

Coal is a black or brownish-black sedimentary rock that can be burned for fuel and used to generate electricity.It is composed mostly of carbon and hydrocarbons, which contain energy that can be released through combustion (burning). Coal is the largest source of energy for generating electricity in the world, and the most abundant fossil fuel …

A Novel Index to Detect Opencast Coal Mine Areas From …

Detection, classification and monitoring of surface mining region from satellite images have vast challenges. Surface mining industry has huge effect on social, economical, ecological, and environmental welfare of a country. Machine learning techniques are used to capture the unique characteristics of surface mining region from …

Moatize Coal Mine

Note: The above section was automatically generated and is based on data from the GEM April 2024 Global Coal Mine Tracker dataset. Background The Moatize coal mine is owned by Vale and Mitsui Corp, in Moatize, Tete province, Mozambique.. The company has proposed increasing capacity to 22 million tonnes per annum, but in 2020 revised the …

IOT–BASED COAL MINE SAFETY MONITORING AND …

coal mine safety monitoring and alerting system, various types of sensors are deployed to monitor different aspects of the mine environment and ensure the safety of workers and operations. Gas Sensors: These sensors are used to detect the presence of harmful gases such as methane (CH4), carbon

Coal Mining and Processing

Although the United States has the vast coal resource described in the previous chapter, perhaps as much as 4 trillion tons, the key issue for policy makers is the amount of coal that is economically recoverable.This is not a fixed quantity, but depends on the geological resource, the market price, and the cost of mining. The particular characteristics of the …

Mapping the yearly extent of surface coal mining in Central …

Impacts of surface coal mining in Appalachia. Surface mining is a broadly used mining technique that has increasingly replaced underground mining for a variety of resources [], especially coal in the United States [].In Central Appalachia, most of this surface mining for coal is done in the steep, dissected landscapes of Kentucky, …

CM-YOLOv8: Lightweight YOLO for Coal Mine Fully Mechanized Mining …

In the field of coal mining production, the application of object detection technology continues to evolve. Yang et al. proposed the use of sensor-based technologies such as LiDAR and radar to detect coal mine obstacles, monitor geological structures, and ensure worker safety . However, sensor performance is often influenced by …

Historical significance and modern applications of the Canary in a coal

In the early days of coal mining, miners faced the constant threat of encountering deadly gases, such as carbon monoxide and methane. ... canaries were used as early warning systems to detect the presence of these gases. Coal mines were prone to build-up of dangerous gases due to natural processes like decay of organic matter or as …

Coal Mining Impacts on Baseflow Detected Using Paired Catchments

Large-scale coal mining not only disturbs natural landscapes but also alters catchment hydrological processes. Although investigating how mining activities such as open cut and/or underground mining change catchment baseflow is critical for understanding mining-related hydrological mechanisms and for helping water resource …

A 3-D inversion model for InSAR detected displacements

When using synthetic aperture radar interferometry (InSAR) technology to monitor coal mining sub-sidence, the displacement of radar line of sight (LOS) obtained is the vector superposition of ...

Review of preventive and constructive measures for coal mine …

The explosion had happened where there was a coal mine irrespective of their geographical location, percent of firedamp gas, and degree of mechanization. It is observed from the Table 1 that the year 2010 was a feared year in coal mining history with nine disasters in eight countries leading to total death of 299 persons. Likewise, the …

A Novel Index to Detect Opencast Coal Mine Areas from …

There is a complex nonlinear relationship between the coal mining rate and the cutting specific energy consumption [1] - [3]. Searching for appropriate means and methods to carry out research on ...

Lung disease detected at Qld coal mines

Lung disease detected at Qld coal mines. THREE cases of dust-related lung disease have been reported in Queensland this year after a nominated medical advisor detected lung disease in two underground coal mine workers as part of the Coal Mine Workers' Health Scheme. A third case was identified in a retired underground coal mine …

Embedded control system design for coal mine detect and …

The coal mine detect and rescue robot is used for detecting the explosion environment of coal mine and rescuing miners who are trapped in the underground coal mine after gas explosion. Coal mine is a dangerous place in which many fatal factors menace miners' life, especially when blasts occurred. Rescue crews usually don't know the actual situation of …

The shallow strata structure and soil water …

After coal mining, the soil water content with the shallow strata decreases significantly, and the soil water content of the two detected samples decreases by an average of 0.0234 cm³/cm³ for ...

Detecting surface coal mining areas from remote sensing …

Detecting surface coal mining areas (SCMAs) using remote sensing data in a timely and an accurate manner is necessary for coal industry management and …

Digital Gas Monitoring For Underground Environments

The Aura-PT is no exception and has undergone extensive engineering, testing and trials; both at their facility and various mine sites worldwide. Wearable Gas Monitoring for Underground Environments The Aura-PT (portable) digital gas monitor, designed and manufactured in Western Australia, provides personnel with the ability to …

CDC

Response time is critical because while the mining machine is cutting coal, methane levels can rise and fall rapidly and miners have to be able to respond quickly to these changing conditions. ... Similarly, fiber optic sensing could further be explored to detect smoke, carbon monoxide, and carbon dioxide during emergency atmospheric …

Research on coal mine safety risk evolution and …

In order to find out the main causes of coal mine safety accidents and improve the pertinence of coal mine safety risk management and control, the identification and analysis of coal mine safety ...