Tunnel gangue mine

Research on shotcrete in mine using nonactivated waste coal

2020年6月20日  The implication of CGC is to reduce the exploitation of river sand and quarry mining and provide a new sustainable method for waste coal gangue disposal CGC may be To accelerate the insitu utilization of coal gangue, this paper explored coal gangue aggregates (CGA) as the single aggregate source to prepare shotcrete used for coal mine tunnelLiheng ZHANG PhD Tongji University, Shanghai2021年10月1日  To accelerate the insitu utilization of coal gangue, this paper explored coal gangue aggregates (CGA) as the single aggregate source to prepare shotcrete used for coal Environmentally friendly utilization of coal gangue as aggregates 2024年9月28日  This paper proposed a straightforward presoaking technique for CG, where the presoaked CG (PCG) is partially substituted for natural sand to provide internal curing effect Internal Curing for Tunnel SelfCompacting Concrete Using Pre

Gangue grouting filling in subsequent space of coal green mining

2024年3月27日  Addressing the temporal and spatial interference between mine solid waste backfilling and coal mining is essential To overcome this challenge, this study introduces a 2024年7月22日  The coal gangue separation system in the Longgu Coal Mine comprises four significant chambers, namely the screening crushing chamber (SCC), screening product transferring chamber (SPTC), denseA case study of displacement, stress condition and 2024年8月23日  The modified gangue aggregate can be used as concrete aggregates in the construction of coal mines, such as shotcrete for tunnel support in the underground of mines, Enhancing coal gangue aggregates with fly ashcement slurry 2021年10月1日  Coal gangue is a waste product commonly produced during coal mining Using gangue as a replacement for conventional aggregates in shotcrete applied to underground Environmentally friendly utilization of coal gangue as aggregates

Lowcarbon utilization of coal gangue under the

2023年5月25日  To accelerate the local utilization of coal gangue, Chen et al explored coal gangue aggregates as a single aggregate source to prepare shotcrete for underground coalmine tunnels Reducing the carbon cost under Keywords Coal mine tunnel roads Selfcompacting concrete Presoaked coal gangue Internal curing Autogenous shrinkage Interface transition zone Coal gangue was sourced from Zhangji Coal Mine in Huainan, China CG was crushed into sizes ranging from 015 to 236 mm using a jaw crusherInternal Curing for Tunnel SelfCompacting Concrete Using Pre 2023年6月27日  A schematic diagram of hyperspectral scanning system in mine shafts and tunnels Pushbroom hyperspectral camera scans with the certain FieldofView (FoV)A tunnel coaxial 3D hyperspectral scanning system for 2024年1月24日  Methaneair explosion is one of the major disasters in industrial process The explosion strength could be influenced by the crushed coal gangue, which is widely distributed in coal mine gob and Study on the propagation characteristics of methane

Passive Treatment of Circumneutral Mine Drainage from the St

2022年12月1日  This publication is a case study of the seasonal variability of mine water drainage from the Saint Louis Tunnel (SLT) at the inactive RicoArgentine mine site located in southwestern Colorado It is an introductory paper for the two passive water treatment system technology evaluations contained in this issue Mine water chemistry changes from baseflow 2022年3月29日  The main simulation results show that: (1) the raw coal separating capacity of this deep mine matches its mining capacity, and the gangue backfilling capacity can almost meet the demand for backfilling after raw coal mining; (2) belt conveyors 1 and 6 are the transportation bottlenecks of increasing production in the mine, and the lifting capacity of the main shaft is Simulation and optimization of miningseparatingbackfilling In Tangshan Mine, there are four engineering problems, including the layout of multiple seam mining system, serious environmental damages caused by gangue accumulation and surface collapse, nearly Jixiong ZHANG Research profileYavapai chloritic schists strike N23ºE at the mine and dip 70ºNW Orebodies contained in the schist Gangue is finegrained quartz Workings include a main tunnel 600 feet below the outcrop; a total of 4 tunnels (1928) Production was 180,000 tons of ore averaging 375% Cu 1 oz Ag/T plus 002 oz Au/TDe Soto Mine arizonamininghistory

Research on shotcrete in mine using nonactivated waste coal gangue

DOI: 101016/jjclepro2020 Corpus ID: ; Research on shotcrete in mine using nonactivated waste coal gangue aggregate @article{Xiao2020ResearchOS, title={Research on shotcrete in mine using nonactivated waste coal gangue aggregate}, author={Meng Xiao and Feng Ju and He Zequan}, journal={Journal of Cleaner Production}, year={2020}, 2020年2月1日  Other mine waste was used in the building industry such as mine tailings and waste rocks in mortars (Argane et al, 2016;Benarchid et al, 2018), nonactivated waste coal gangue (Xiao et al, 2020 Research on shotcrete in mine using nonactivated waste coal gangue 2024年7月1日  Underground Mine Tunnel Semantic Segmentation Dataset contains 17 categories, including: background, freespace, pipeline, cable, track, tramcar, staff, stairway, fence, gate, stuff, power A synchronous detectionsegmentation method for oversized gangue on a coal preparation plant based on multitask learning Miner Eng, 187Realtime semantic segmentation for underground mine tunnel2023年9月13日  This technology retransfers the gangue from the surface to the underground and fills it into gobs in a dense manner, which fills the gobs generated by coal mining in time, eliminates the possibility of large deformation of the upper rock strata at the time when they have not collapsed, weakens the mine pressure, and reduces the cost of tunnel support (Li et al Preventing water inrush hazards in coal mines by coal gangue

Lowcarbon utilization of coal gangue under the

2023年5月25日  Coal gangue, produced during coal mining and processing [1, 2], is one of the most extensively produced solid wastes in China [1, 3], accounting for approximately 10%‒20% of raw coal production []The The Mt Sherman Tunnel Mine is just over the edge and 1800+ feet lower while the town of Leadville is in the distant Arkansas River Valley to the far right The Mine is probably best known for producing a rich array of secondary minerals AZURITE BARITE: SHERMAN TUNNEL MINE, comments comment (location): accurate location is for the main entrance of the waldo tunnel shown on the magdalena topographic quadrangle comment (deposit): the waldographic mine was reported in 1942 to consist of claim holdings covering about 227 acres comment (workings): waldographic workings contain about 14 different working levels and informal practice Waldo Tunnel Western Mining HistoryDOI: 101016/jengappai2024 Corpus ID: ; Realtime semantic segmentation for underground mine tunnel @article{Wang2024RealtimeSS, title={Realtime semantic segmentation for underground mine tunnel}, author={Jiawen Wang and Dewei Li and Qihang Long and Zhongqi Zhao and Xuan Gao and Jingchuan Chen and Kehu Yang}, journal={Eng Realtime semantic segmentation for underground mine tunnel

Enhancing coal gangue aggregates with fly ashcement slurry

2024年8月23日  Coal gangue, a byproduct of coal mining, constitutes over 10 % of coal production [4] and represents one of the largest accumulations of industrial solid waste worldwide, posing significant ecological concerns [5], [6], [7]Consequently, repurposing coal gangue as a resource has emerged as a critical area of research [8]At present, coal gangue serves Comment (Location): The Mendota Mine (Victoria Tunnel) is at the west end of Silver Plume, at highway level, in the SE/4 SW/4 sec 13, T 4 S, R 75 W Comment (Production): Probably several million dollars from the Terrible vein group, including the MendotaMendota Mine (Victoria Tunnel) – Western Mining History2023年11月23日  Coal gangue refers to the carboncontaining solid waste discharged from the coal mine during the development and excavation, coal mining, raw coal washing, and other production processesTechnology and engineering test of filling goaf with coal gangue was developed and successfully applied for the discrimination of ores and gangue in mine shas 24,25 Turner et al 26 developed an unmanned drone system that mounted a multispectral camera A tunnel coaxial 3D hyperspectral scanning system for underground mine

ST(D)25B Underground Roadway, Tunnel, Culvert Shuttle Mine Car

Introduction Of T(D)25B Underground Roadway, Tunnel, Culvert Shuttle Mine Car Underground Roadway, Tunnel, Culvert Shuttle Mine Car (it’s also called mobile gangue storage in coal mine) is an highefficient gangue transport device, mainly used in the projects of underground roadway, tunnel, culvert, etc Usually it’s guided by locomotive and can be used together with mucking 2020年6月20日  The satisfactory mechanical properties of coal gangue make coal gangue concrete feasible, especially for underground tunnel shotcrete support and grouting Many other waste materials have been widely utilized in concrete production, including waster glass powder (Tang et al, 2019), crushed recycled concrete (Barbudo et al, 2013), iron tailing (Lv et al, Research on shotcrete in mine using nonactivated waste coal gangue 2022年1月1日  In Tangshan Mine, there are four engineering problems, including the layout of multiple seam mining system, serious environmental damages caused by gangue accumulation and surface collapse, nearly Integrated green mining technology of “coal mining Development and Application of 3D Hyperspectral Scanning System for Underground Mine and Tunnel Exploration This paper was downloaded from TechRxiv (https://techrxiv)Development and Application of 3D Hyperspectral Scanning

Sherman MIne – Western Mining History

Comments Comment (Location): Near the head of Iowa Gulch on the west side of Mount Sherman, about 61/2 miles ESE of Leadville, in NW/4 sec 36, T 79 W, R 9 S Comment (Ownership): HECLA MINING CO WITHDREW IT LEASE OF THE PROPERTY IN 1985LEADVILLE CORP IS SOLE OWNER Comment (Deposit): THE MIXED 2023年1月31日  Nevertheless, the mine environment underground is rich in sulfate ions, posing a threat to the durability of coal gangue concrete (CGC) Hence, the degradation process of sulfateattacked CGC is Degradation Mechanism of Coal Gangue Concrete Suffering from 2023年1月31日  Recycling coal gangue as aggregate to produce concrete in situ is the most effective way to solve the problem of deposited coal gangue in mines Nevertheless, the mine environment underground is rich in sulfate ions, posing a threat to the durability of coal gangue concrete (CGC) Hence, the degradation process of sulfateattacked CGC is investigated A Degradation Mechanism of Coal Gangue Concrete Suffering from 2020年1月15日  Semantic Scholar extracted view of "Effects of particle sizes on compressive deformation and particle breakage of gangue used for coal mine goaf backfill" by M Gangue materials have been used to solve mine disasters with a support tunnel along the goaf and filling mining Mastering the properties and damage characteristics of Effects of particle sizes on compressive deformation and particle

Research on shotcrete in mine using nonactivated waste coal gangue

Calcined flint clay (456 wt% Al2O3) and solid waste coal gangue were used to prepare lowdensity ceramic proppant by solid state sintering method The density and breakage ratio of the ceramic proppant were systematically investigated as a function of sintering temperature2023年10月11日  To alleviate the ecological environmental problems caused by coal gangue accumulation and fracture of the waterbearing layer, backfill mining technology was proposed (Liu et al 2021; Zhang and Cao 2021; Chen et al 2022)Specifically, certain solid wastes, such as tailings, rock piles, and coal gangue, are selected as filling materials to backfill directly to the Study on mechanical properties of coal gangue and fly ash2021年2月23日  PDF Cemented coal gangue paste backfill Grouting reinforcement is gradually applied in subway, tunnel, bridge reinforcement, coal mine floor and other construction projects(PDF) Monitoring and Assessment of Cemented PasteKeywords Coal mine tunnel roads Selfcompacting concrete Presoaked coal gangue Internal curing Autogenous shrinkage Interface transition zone Coal gangue was sourced from Zhangji Coal Mine in Huainan, China CG was crushed into sizes ranging from 015 to 236 mm using a jaw crusherInternal Curing for Tunnel SelfCompacting Concrete Using Pre

A tunnel coaxial 3D hyperspectral scanning system for

2023年6月27日  A schematic diagram of hyperspectral scanning system in mine shafts and tunnels Pushbroom hyperspectral camera scans with the certain FieldofView (FoV)2024年1月24日  Methaneair explosion is one of the major disasters in industrial process The explosion strength could be influenced by the crushed coal gangue, which is widely distributed in coal mine gob and Study on the propagation characteristics of methane 2022年12月1日  This publication is a case study of the seasonal variability of mine water drainage from the Saint Louis Tunnel (SLT) at the inactive RicoArgentine mine site located in southwestern Colorado It is an introductory paper for the two passive water treatment system technology evaluations contained in this issue Mine water chemistry changes from baseflow Passive Treatment of Circumneutral Mine Drainage from the St2022年3月29日  The main simulation results show that: (1) the raw coal separating capacity of this deep mine matches its mining capacity, and the gangue backfilling capacity can almost meet the demand for backfilling after raw coal mining; (2) belt conveyors 1 and 6 are the transportation bottlenecks of increasing production in the mine, and the lifting capacity of the main shaft is Simulation and optimization of miningseparatingbackfilling

Jixiong ZHANG Research profile

In Tangshan Mine, there are four engineering problems, including the layout of multiple seam mining system, serious environmental damages caused by gangue accumulation and surface collapse, nearly Yavapai chloritic schists strike N23ºE at the mine and dip 70ºNW Orebodies contained in the schist Gangue is finegrained quartz Workings include a main tunnel 600 feet below the outcrop; a total of 4 tunnels (1928) Production was 180,000 tons of ore averaging 375% Cu 1 oz Ag/T plus 002 oz Au/TDe Soto Mine arizonamininghistoryDOI: 101016/jjclepro2020 Corpus ID: ; Research on shotcrete in mine using nonactivated waste coal gangue aggregate @article{Xiao2020ResearchOS, title={Research on shotcrete in mine using nonactivated waste coal gangue aggregate}, author={Meng Xiao and Feng Ju and He Zequan}, journal={Journal of Cleaner Production}, year={2020}, Research on shotcrete in mine using nonactivated waste coal gangue 2020年2月1日  Other mine waste was used in the building industry such as mine tailings and waste rocks in mortars (Argane et al, 2016;Benarchid et al, 2018), nonactivated waste coal gangue (Xiao et al, 2020 Research on shotcrete in mine using nonactivated waste coal gangue

Realtime semantic segmentation for underground mine tunnel

2024年7月1日  Underground Mine Tunnel Semantic Segmentation Dataset contains 17 categories, including: background, freespace, pipeline, cable, track, tramcar, staff, stairway, fence, gate, stuff, power A synchronous detectionsegmentation method for oversized gangue on a coal preparation plant based on multitask learning Miner Eng, 187

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