2021-11-14 The popularization and application of the backfill mining method can effectively solve a series of technical problems caused by the continuous expansion of the mining scale and
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2021-11-14 Currently, major mines in China are starting to build backfill systems to apply the backfill mining method, therefore, Part II reviews the progress China has made on creating
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2007-5-1 The backfill method involves filling underground voids created by mining operations usually with materials, such as mine tailings, flotation tailings or other materials together with cement...
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2019-6-28 Mine backfill is soil, overburden, mine tailings or imported aggregate material used to replace excavated zones created by mining operations. Mine fill is an integral component of mines' design and method with many operations
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2014-3-5 The general rule of thumb for pastefill is that for every metre rise in a vertical line you will have 1.5 metres flow in the horizontal line. I.e. 300m vertical = 450m horizontal. A good pastefill mix is when you are running the system on
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2022-5-13 At present, the main technologies of backfilling mining cover solid backfilling mining (Huang et al. 2021; Jian 2017), paste backfilling (Liu et al. 2020b), and high-water material
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2020-11-17 The results show that in comparison to the full caving mining method, the bearing capacity of the goaf after backfilling was enhanced, the backfill mining can effectively reduce
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2014-4-6 Thus, this type of backfilling method can only be used when there is no rigid requirement. Paste backfill mining (see Figure 1) is a coal mining method in which solid mining wastes such as gangues are broken and processed and
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The backfill is done by sections of a maximum length of 61 m (200 ft) in the following sequence: Clean the floor of all remaining ore. Install the backfill pipe to the back. The unloading area has to be 6 m (20 ft) from the end of the stope
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2015-4-29 Comparison of an ancient mining method and current mechanised mining without backfilling. (a) The ancient mining method described in The Tiangong Kaiwu, published in 1637; (b) The current mechanised mining
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Abstract: In underground mining, hydraulic backfill materials, such as waste tailings, river sand, and cement, are often used to fill underground mined stopes. In cut-and-fill mining methods with blasthole stoping and delayed backfill, after extraction of adjacent pillars that contain economic minerals, the backfill is often subject to exposure of free standing on at least one side.
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2022-11-7 Leaders in mine backfilling include Jinchuan Group, which operates one of China's largest modern mines. The company employs a unique downward hexagonal approach backfill method that includes mechanised mining equipment such as a drill trolley, scarper, and patio drill. The company has constructed independent backfill systems in several mining
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2017-5-12 Energies 2015, 8 3631 (a) (b)Figure 2. Comparison of an ancient mining method and current mechanised mining without backfilling. (a) The ancient mining method described in The Tiangong Kaiwu, published in 1637; (b) The current mechanised mining method; the method is characterised by its caving system, which is both economical and efficient to enable high
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2021-8-6 The study on the subsidence of backfill mining block has been a concern of many scholars. A mechanical model of plate subsidence is established by studying the roof of a filling mining area in Luo Iron Mine in this paper. The boundary conditions are given, and the Navier method is used to solve the problem. Based on the thin plate model, the subsidence
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2021-1-15 When the backfilling mining method is used, the coal seam excavation is equivalent to reducing the original mining thickness. In the literature, many researchers have established a plenty of empirical formulas that provided the relationship between the equivalent mining height with backfilling and the traditional caving method.
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Backfilling has been used increasingly in underground mines as a support medium in/around mining areas. The mining method known as cut-and-fill, which incorporates backfilling in its operational cycle, is ranked as a major method of underground mining. Even the room-and-pillar mining and sublevel stoping methods also
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2022-1-21 Combining tailing materials in the backfill makes it possible to reduce a mine's environmental footprint and assists with the final site rehabilitation. Therefore, cemented paste backfill (CPB) has become an essential component of underground mining operations. CPB is a mixture of tailings, water, and cement used to fill underground stopes.
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2014-4-6 Thus, this type of backfilling method can only be used when there is no rigid requirement. Paste backfill mining (see Figure 1) is a coal mining method in which solid mining wastes such as gangues are broken and processed and
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Primary Mining Method Cut-and-Fill mining method. Information. BACKFILL SEQUENCE. Clean the floor of all remaining ore. Crib the Joker chute. Install burlap around the chute to retain the fill and to drain the water. Install the
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2015-4-29 Comparison of an ancient mining method and current mechanised mining without backfilling. (a) The ancient mining method described in The Tiangong Kaiwu, published in 1637; (b) The current mechanised mining
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Abstract: In underground mining, hydraulic backfill materials, such as waste tailings, river sand, and cement, are often used to fill underground mined stopes. In cut-and-fill mining methods with blasthole stoping and delayed backfill, after extraction of adjacent pillars that contain economic minerals, the backfill is often subject to exposure of free standing on at least one side.
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2022-11-7 Leaders in mine backfilling include Jinchuan Group, which operates one of China's largest modern mines. The company employs a unique downward hexagonal approach backfill method that includes mechanised mining equipment such as a drill trolley, scarper, and patio drill. The company has constructed independent backfill systems in several mining
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2017-5-12 Energies 2015, 8 3631 (a) (b)Figure 2. Comparison of an ancient mining method and current mechanised mining without backfilling. (a) The ancient mining method described in The Tiangong Kaiwu, published in 1637; (b) The current mechanised mining method; the method is characterised by its caving system, which is both economical and efficient to enable high
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2021-8-6 The study on the subsidence of backfill mining block has been a concern of many scholars. A mechanical model of plate subsidence is established by studying the roof of a filling mining area in Luo Iron Mine in this paper. The boundary conditions are given, and the Navier method is used to solve the problem. Based on the thin plate model, the subsidence
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2021-1-15 This paper aims to address the coal seam floor behavior after mining with CPB method. Firstly, the numerical model by using Midas/GTS-Flac3d method is developed on the basis of 2353 working face, Daizhuang Coal Mine; then, the slip line field theory of plastic mechanics is applied to calculate the floor damage depth. Furthermore, field observation is
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Backfilling has been used increasingly in underground mines as a support medium in/around mining areas. The mining method known as cut-and-fill, which incorporates backfilling in its operational cycle, is ranked as a major method of underground mining. Even the room-and-pillar mining and sublevel stoping methods also
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2022-10-9 The backfill mining method is a widely used mining method in the major mines of China, which can maximize the recovery of mineral resources and protect the environment. Currently, major mines in China are starting to build backfill systems to apply the backfill mining method, therefore, Part II reviews the progress China has made on creating
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