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Julius, the robot above, can track people, robots, and machines, as well as monitor environmental conditions, in mines like this one, the research and teaching mine Reiche Zeche in Germany.
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Underground space utilisation has played an effective role in urban renewal, such as coping with urban development and associated problems, achieving more efficient use of land, space, and energy resources, contributing to old city conservation, overcoming obstacles and improving accessibility in the city, and bringing opportunities to renew ...
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With a growing demand for mineral resources, the optimization of mining and metals recovery techniques, and the gradual depletion of near surface resources, the industry is mining at increasingly greater depths below surface (Lippmann-Pipke et al., 2011).Underground operations at 2000 m below surface or more are becoming more …
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Tunnelling and Underground Space Technology. Volume 27, Issue 1, January 2012, Pages 142-148. ... The desire to reduce costs and increase productivity is driving mining industries to deploy underground mining electric vehicles (UMEVs). Due to the complex, working environments in underground mines, safer and more stable …
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Thus, UWRs is one of the primary means of coal mine underground space utilization. The main underground space for UWRs in China is the caving zone formed by longwall mining. Compared with previous UWRs that utilized the tunnel as the main space, the storage capacity is larger, and the gangue in the caving zone can be used to purify …
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This paper examines the spatial distribution characteristics of long-narrow underground spaces and the thermal environmental control requirements associated with such spaces.
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In underground mining, a stope and stoping define two different components of underground mining design and mining operations. Stoping is a method of extracting ore from an underground mine that …
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Abstract: Applicants for surface and underground coal mining permits are required to provide adequate descriptions of the environmental resources that may be …
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The mining technical conditions of mineral deposits are highly variable, and the mining method design is also an innovative process. With the mining technical conditions and the needs of extracting considered, the location, structure, and quantity of stopping development, cutting, and extracting roadway shall be optimized, and the …
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The empty-space subsequent filling mining method is the main mining scheme for underground metal mines to achieve large-scale mechanized mining. The stage height, one of the main parameters of this method, affects the various production process aspects of the mine and influences the stability of the goaf. In order to …
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An overview of utilization of mined underground space over the world is presented. • Classification, development, advantages and identification of mined …
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The space closest to the face in kept open while the hanging wall is allowed to collapse at a safe distance behind the miners and their equipment. ... Equipment for Underground Mining. Underground mining is becoming increasingly mechanized wherever circumstances permit. The rubber-tyred, diesel-powered, four-wheel traction, …
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Underground hydrogen storage (UHS) is considered to solve the intermittency problem of renewable energy. A geological assessment indicated that the B unit of the Salina Group in Southern Ontario, Canada, is the most promising for UHS because it is the thickest and most regionally extensive salt rock deposit. However, the …
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Mining in space: who owns the moon? We look at space mining's legislative landscape and some of the concerns surrounding off-planet extraction rights.
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The system's practicality was validated in an underground mining study conducted by Jones et al. [94], where it generated intricate 3D maps, thereby enriching the understanding of the mine's ...
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Caving methods. Caving methods include block caving, sublevel caving, and longwall mining.For emphasis, allow me to repeat what I said earlier: caving methods are used in settings where the ore or the host rock is so weak that it cannot support its own weight for any period of time; the methods only work if the rock or the ore will readily cave under its …
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In recent years, the comprehensive and extensive development of urban underground space (UUS) has gained substantial popularity with the efficient guidance of UUS planning. This study discussed the research trends and paradigm shift in UUS planning over the past few decades. Bibliometric and comparative studies were …
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The contradiction between urban construction and sustainable development has led to an increasing demand for urban underground space (UUS). The value evaluation of urban underground space (UUSVE) is of great significance in promoting the rational development of UUS. Currently, no study has reviewed the literature on UUSVE. …
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Helsinki's underground data centre exhibits how an ecological approach can be applied to reduce energy and resource consumption—as well as associated emissions. It sets a precedent for using underground space for multiple purposes, delivering social and …
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Exyn's drone used advanced 3D LiDAR to autonomously navigate underground spaces, creating real-time, detailed 3D maps. The mapping process occurred without human …
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in Underground Mining: a Review Masoud Zare1 · Rushikesh Battulwar2 · Joseph Seamons2 · Javad Sattarvand2 Received: 6 August 2020 / Accepted: 27 July 2021 ... positioning systems need to be employed in underground mining spaces that can extend to depths of thousands of feet, in some cases over 2 mi, below the surface of the Earth. ...
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Finding a cheap place to live is hard enough, but finding cheap office space can often be even harder. It may seem like a drastic step to hollow out a massive limestone formation to make an ...
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Underground mining activity creates empty spaces, along with lowering the ground water level of the area and contributing significantly towards surface deformation. For the monitoring of ground subsidence ground measurement technique, total station using precise leveling and global navigation satellite system (GNSS) are used, …
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Note that, for the special use of the underground space, e.g., the mining, it is determined by the location of the mining resources. Coordinated development. Coordinated development takes the different functions of underground space as a whole to develop them together. Coordinated development includes three aspects: moving …
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Underground mine spaces have the greatest potential for storing fly ash in large quantities compared to other possible applications. The process involves using filling materials to reinforce the surrounding rock and provide support to the overlying strata, thereby reducing surface subsidence. This paper presents a study conducted in this ...
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Partial layout of underground mining spaces of Daizhuang Coal Mine. After appropriate simplification on the CAD drawing, Fig. 4 shows the 3-D geometric model of underground flow network between the extraction well and the injection well, in which A and B (marked) are two important main roadways and blocked roadways are not …
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Underground mining is a huge industry, but what should you know about it? This beginner's guide explains what to know about underground mining. ... You might think the term "longwall mining" refers to the space in which you are working. However, the "long" part merely references the size of the cuts you make, and larger spaces allow …
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Limited Space and Accessibility: Underground mining operations often face constraints in terms of limited space and narrow access points. Equipment and machinery must be specifically designed to navigate these confined spaces efficiently. The Australian Mining Association (AMA) provides guidelines on equipment design and operational procedures ...
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Underground Mining Methods Flow Chart (modified from Brown, 2003) ... underground mine, leaving behind an open space known as a stope.[1] Stoping is the removal of the orebody from the surrounding ...
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Edda Steingrimsdottir (MArch '22), for example, considers the area's geothermal-rich soil as an impetus for turning the site into a heated swimming pool—a …
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