Jixiong Zhang
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View article: Water storage in underground mined-out space as a geothermal reservoir: Heat extraction performance and temperature evolution
Water storage in underground mined-out space as a geothermal reservoir: Heat extraction performance and temperature evolution Open
View article: Carbon sequestration amount evolution characteristics and reaction mechanisms in coal-based solid waste backfill: A new whole-process carbon sequestration technique
Carbon sequestration amount evolution characteristics and reaction mechanisms in coal-based solid waste backfill: A new whole-process carbon sequestration technique Open
View article: Experimental Investigation of Compaction Deformation and Seepage Mechanism of Granular Waste Rock Backfill Materials for Mitigating Mining-Induced Water Hazards
Experimental Investigation of Compaction Deformation and Seepage Mechanism of Granular Waste Rock Backfill Materials for Mitigating Mining-Induced Water Hazards Open
The development of mining-induced fracture zones in the backfilling working face near the aquifer significantly increases the seepage risk of granular waste rock backfill materials (GWRBMs), posing threats to groundwater resources and secu…
View article: Adaptive drive-based integration technique for predicting rheological and mechanical properties of fresh gangue backfill slurry
Adaptive drive-based integration technique for predicting rheological and mechanical properties of fresh gangue backfill slurry Open
The gangue grouting and backfilling (GGB) in the subsequent space of coal mining provides an effective way for green disposal of coal gangue. This study proposes a newly integrated intelligent model of mixing entropy- and congestion degree…
View article: Water-induced changes in mechanical response and fragmentation behavior of rocks exposed to conical pick indentation: Implications for rock cuttability improvement
Water-induced changes in mechanical response and fragmentation behavior of rocks exposed to conical pick indentation: Implications for rock cuttability improvement Open
Water-weakening presents a promising strategy for the in-situ improvement of rock cuttability. This study unveils the influences of water saturation on the mechanical response and fragmentation characteristics of rock samples. A series of …
View article: Correction to: Control effect of coal mining solid‑waste backfill for ground surface movement in slice mining: a case study of the Nantun Coal Mine
Correction to: Control effect of coal mining solid‑waste backfill for ground surface movement in slice mining: a case study of the Nantun Coal Mine Open
View article: Interfacial Oxygen Bridge Bonding with Mo-O-Ti Units in Moox@Ti3c2 Mxene Harness Efficient Li-O2 Battery at Ultra-High Rate
Interfacial Oxygen Bridge Bonding with Mo-O-Ti Units in Moox@Ti3c2 Mxene Harness Efficient Li-O2 Battery at Ultra-High Rate Open
View article: Laboratory Study on Mechanical Response and Fragmentation Behavior Of Dry and Water-Saturated Rocks Exposed to Conical Pick Indentation: Implications for Rock Cuttability Improvement
Laboratory Study on Mechanical Response and Fragmentation Behavior Of Dry and Water-Saturated Rocks Exposed to Conical Pick Indentation: Implications for Rock Cuttability Improvement Open
View article: Insight into the Micro Evolution of Backfill Paste Prepared with Modified Gangue as Supplementary Cementitious Material: Dissolution and Hydration Mechanisms
Insight into the Micro Evolution of Backfill Paste Prepared with Modified Gangue as Supplementary Cementitious Material: Dissolution and Hydration Mechanisms Open
Gangue-based backfill cementitious materials (BCM) are widely applied due to their low CO2 footprint, while the application is restricted by gangue’s low reactivity. In this study, dry chemical modification was developed to modify the gang…
View article: Mechanical and hydraulic properties of fault rocks under multi-stage cyclic loading and unloading
Mechanical and hydraulic properties of fault rocks under multi-stage cyclic loading and unloading Open
The rock mass in fault zones is frequently subjected to cyclic loading and unloading during deep resource exploitation and tunnel excavation. Research on the mechanical and hydraulic characteristics of fault rock during the cyclic loading …
View article: Utilization of mine waste heat in phase change rechargeable battery
Utilization of mine waste heat in phase change rechargeable battery Open
View article: Analysis of Influencing Factors and Prevention of Coal Wall Deformation and Failure of Coal Wall in Caving Face with Large Mining Height: Case Study
Analysis of Influencing Factors and Prevention of Coal Wall Deformation and Failure of Coal Wall in Caving Face with Large Mining Height: Case Study Open
The coal walls in a caving face with a tall mining height are prone to rib spalling, which leads to the phased cessation of the mining of the working face, causes heavy losses, and endangers the safety of underground workers. In order to p…
View article: Strata Movement of Gangue Grouting Filling in Subsequent Space for Coal Mining and Analysis of Its Practical Effects
Strata Movement of Gangue Grouting Filling in Subsequent Space for Coal Mining and Analysis of Its Practical Effects Open
There is a huge amount of solid waste generated in coal resource exploitation and utilization, leading to effects on the environment and hindering sustainable development. Aiming at the difficulty of disposal of coal-based solid waste from…
View article: High-Conductive Multilayer TiOX-Ti3C2TX Electrocatalyst for Longevous Metal-Oxygen Battery under a High Rate
High-Conductive Multilayer TiOX-Ti3C2TX Electrocatalyst for Longevous Metal-Oxygen Battery under a High Rate Open
Metal-oxygen batteries (especially Li-O2 battery) with ultrahigh theoretical energy density are of great promise for long-range vehicle electrification. However, the limited enduring stability and low-rate property further restricted the l…
View article: Effect of CO2 Mineralization on the Composition of Alkali-Activated Backfill Material with Different Coal-Based Solid Wastes
Effect of CO2 Mineralization on the Composition of Alkali-Activated Backfill Material with Different Coal-Based Solid Wastes Open
Research focusing on waste management and CO2 mineralization simultaneously has been a popular topic in the mining community, and a common approach is to mineralize CO2 with coal-based solid waste (CSW, e.g., gangue (CG), fly ash (FA), coa…
View article: Experimental Study on Performance Optimization of Grouting Backfill Material Based on Mechanically Ground Coal Gangue Utilizing Urea and Quicklime
Experimental Study on Performance Optimization of Grouting Backfill Material Based on Mechanically Ground Coal Gangue Utilizing Urea and Quicklime Open
Previously conducted studies have established that grouting backfill in mining-induced overburden bed separation and mined-out areas with broken rocks provides an efficient strategy to control strata movement and surface subsidence caused …
View article: Predicting mechanical development of mine functional mortar: experiment and thermodynamic analysis
Predicting mechanical development of mine functional mortar: experiment and thermodynamic analysis Open
Shotcrete mortar is an imperative material for tunnel surface supporting. The mine environment with different temperature affects the mechanical development of mortar, resulting in a difficult to predict its compressive strength developmen…
View article: Analysis of Surface Deformation Induced by Backfill Mining Considering the Compression Behavior of Gangue Backfill Materials
Analysis of Surface Deformation Induced by Backfill Mining Considering the Compression Behavior of Gangue Backfill Materials Open
Coal gangue, as a solid waste produced in the coal mining process, can be disposed by being prepared into backfill materials and then filled in underground goafs, thus controlling strata movement and surface subsidence. However, gangue bac…
View article: A Theoretical Model of Roof Self-Stability in Solid Backfilling Mining and Its Engineering Verification
A Theoretical Model of Roof Self-Stability in Solid Backfilling Mining and Its Engineering Verification Open
Roof self-stability in backfilling mining was proposed to explore its connotation and characteristics after a comparative analysis of roof structures under long-wall caving and backfilling mining. The mechanical analysis models of roof sel…
View article: Underground Disposal of Coal Gangue Backfill in China
Underground Disposal of Coal Gangue Backfill in China Open
China’s total coal production in 2021 exceeded 4.13 billion tons, 52% of the world’s total. Coal gangue, a solid waste of coal mining accounts for 15–20% of coal production, when directly discharged on the ground surface as waste heaps, it…
View article: Effects of Loading Stress and Velocity on Compression and Particle Breakage Behaviour of Waste Rocks in Backfill Coal Mining
Effects of Loading Stress and Velocity on Compression and Particle Breakage Behaviour of Waste Rocks in Backfill Coal Mining Open
Coal mine waste rocks, mainly broken gangue, can be used as filling materials to backfill into goafs. Under the overburden load, the backfill body is vulnerable to compressive deformation and particle breakage. With the increase in mining …
View article: Evaluation of Operating Performance of Backfilling Hydraulic Support Using Six Hybrid Machine Learning Models
Evaluation of Operating Performance of Backfilling Hydraulic Support Using Six Hybrid Machine Learning Models Open
Previously conducted studies have established that surface subsidence is typically avoided by filling coal mined-out areas with solid waste. Backfilling hydraulic supports are critically important devices in solid backfill mining, whose op…
View article: A Numerical Simulation of the Interaction of Aggregate and Rockfill in a Gangue Fluidized Filling Method
A Numerical Simulation of the Interaction of Aggregate and Rockfill in a Gangue Fluidized Filling Method Open
To solve the problem of gangue discharge in coal mining, fluidized gangue filling technology was developed. The key scientific problem of this technology is the diffusion characteristics of the gangue in the goaf. Therefore, a discrete ele…
View article: Microstructure and mechanical behaviors of coal gangue - Coal slime water backfill cementitious materials
Microstructure and mechanical behaviors of coal gangue - Coal slime water backfill cementitious materials Open
View article: Influence of particle size distribution on fractal characteristics of waste rock backfill materials under compression
Influence of particle size distribution on fractal characteristics of waste rock backfill materials under compression Open
Broken waste rock as backfill materials is filled into the underground goaf and will encounter particle breakage under the overburden pressure. The damage degree of the crushed waste rock materials directly affects the compression properti…
View article: A new method for exploiting mine geothermal energy by using functional cemented paste backfill material for phase change heat storage: Design and experimental study
A new method for exploiting mine geothermal energy by using functional cemented paste backfill material for phase change heat storage: Design and experimental study Open
View article: A state-of-the-art review on rock seepage mechanism of water inrush disaster in coal mines
A state-of-the-art review on rock seepage mechanism of water inrush disaster in coal mines Open
Water inrush is one of the most dangerous disasters in coal mining. Due to the large-scale mining and complicated hydrogeological conditions, thousands of deaths and huge economic losses have been caused by water inrush disasters in China.…
View article: Expansion Properties of Cemented Foam Backfill Utilizing Coal Gangue and Fly Ash
Expansion Properties of Cemented Foam Backfill Utilizing Coal Gangue and Fly Ash Open
The cemented backfill (CB) utilizing coal gangue (CG) and fly ash (FA) is widely applied in coal mines. However, the bleeding and shrinkage of CB leads to insufficient contact with surrounding rock, which is not beneficial for controlling …
View article: Control effect of coal mining solid-waste backfill for ground surface movement in slice mining: A case study of the Nantun Coal Mine
Control effect of coal mining solid-waste backfill for ground surface movement in slice mining: A case study of the Nantun Coal Mine Open
Management of solid waste and protecting the ecological balance of the region are key challenges that the coal mining industry has to face. This study evaluated the effect of solid waste backfilling mining on the overlying strata movement …
View article: Monitoring and measurement analysis of key indexes for the implementation of mining, dressing, backfilling, and controlling technology in coal resources—A case study of Tangshan Mine
Monitoring and measurement analysis of key indexes for the implementation of mining, dressing, backfilling, and controlling technology in coal resources—A case study of Tangshan Mine Open
Based on the mining, dressing, backfilling, and X technology framework, we proposed the key operation indexes by exploring the principle, system, and integrated process of “mining, dressing, backfilling, and controlling” technology. After …