Stability Mechanism and Control Technology for Fully Mechanized Caving Mining of Steeply Inclined Extra-Thick Seams with Variable Angles

Wang, Hongwei; Wu, Yongping; Jianqiang, Jiao; Peipei, Cao

doi:10.1007/s42461-020-00360-0

Cited by 7 publications

(6 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In addition, artificial intelligence can also achieve automatic report generation and story telling in data visualization platforms. Through automated text generation and storytelling techniques, the platform can automatically generate data reports and stories based on the characteristics and analysis results of the data, helping users better understand and interpret the data [3].…”

Section: Application Of Artificial Intelligence In Data Visualization...mentioning

confidence: 99%

Algorithm Optimization and Performance Improvement of Data Visualization Analysis Platform based on Artificial Intelligence

Shen

2023

FCIS

View full text Add to dashboard Cite

With the rapid development of artificial intelligence, data visualization analysis platforms have been widely applied in various fields. This study mainly explores the optimization and performance improvement of algorithms for data visualization analysis platforms based on artificial intelligence. Firstly, the definition of a data visualization analysis platform and the application of artificial intelligence in it were introduced, and the current problems and challenges were pointed out. Then, a discussion was conducted on algorithm optimization for various stages of research, including data preprocessing, data clustering, data classification, and optimization of data association analysis algorithms. Subsequently, the study proposed some performance improvement methods, including the application of parallel computing technology, distributed computing technology, data compression technology, and data indexing technology.

show abstract

Section: Application Of Artificial Intelligence In Data Visualization...mentioning

confidence: 99%

Algorithm Optimization and Performance Improvement of Data Visualization Analysis Platform based on Artificial Intelligence

Shen

2023

FCIS

View full text Add to dashboard Cite

show abstract

“…The component of the force (the inclined direction) along the roof layer of the overlying rock stratum is greater than the normal component along the layer. The roof deformation occurs under the combined action of transverse load and longitudinal load [30,31]. As a brittle material, rock has little tensile strength.…”

Section: The Type Of Plate the Thin Films The Thin Plate The Thick Platementioning

confidence: 99%

Study on Overburden Movement Deformation and Roof Breakage Law of Under-Protective Steeply Inclined Coal Seam Mining

Peng

Wang

et al. 2022

Sustainability

View full text Add to dashboard Cite

The occurrence of a steeply inclined coal seam is extraordinary, and the coal body is seriously damaged by extrusion. The most steeply inclined coal seam is a high-gas or -outburst coal seam, and protective layer mining is the safest and most effective measure for regional prevention of coal and gas outburst. Based on considering the coefficient of lateral pressure and vertical height of the section, the deflection of the basic roof of the steeply inclined protective layer in a mine in western Henan, China, was calculated using the deflection calculation method of the thin-plate theory of elasticity. Using MATLAB to understand the deflection, the deflection curve was obtained. The law of rock movement and deformation in the mining process of the protective layer was studied by a similarity simulation experiment. The results show that, after mining, the roof mainly sinks slowly without large-scale collapse, and the largest rock strata movement is located in the upper part of the slope. Rock strata movement and fracture development can relieve the pressure of the protected layer and provide a channel for gas migration and drainage. The mining conditions of the protected layer will not be destroyed, and mining this type of protected layer in this mine has better safety and feasibility. The conclusions of this study have a guiding and scientific significance for the control of surrounding rock and the layout of gas drainage boreholes of under-protective steeply inclined coal seam mining.

show abstract

“…The rib spalling of coal wall and roof caving in front of working face in large-dip-angle working face are urgent problems to be solved in the safe and efficient mining of large dip angle working face. Currently, the primary methods are to control the support resistance, strengthen the coal wall, and reduce the pseudooblique angle [5,6]. These methods focus on prevention and control in advance [7].…”

Section: Introductionmentioning

confidence: 99%

Numerical Simulation Study on Stability Control Technology of Large-Area Wall Caving Area (LAWCA) in Large-Inclined Face

Liu

et al. 2023

Geofluids

View full text Add to dashboard Cite

The caving characteristics of the goaf significantly impact the mining stability of the working face. The coal-forming environment of the steeply dipping coal seam is complex. After mining, the caving rock mass rolls to the lower part of the working face due to gravity, and the caving compaction characteristics of the working face are different from those of the flat and gently inclined working face, taking Huainan Xinji No. 2 Mine 211112 high-angle composite roof working face large-area gang roof fall area as the engineering background. To safely pass through a large roof fall area, a FLAC3D numerical simulation method considering the goaf’s compaction effect and the excavation’s additional damage is proposed. The Weibull distribution function is introduced to modify the elastic modulus parameters of the rock mass after excavation, which more accurately reflects the damage process of the rock mass after hole. Based on the goaf compaction theory, the elastic model is developed for the second time, and the accurate simulation of the caving rock mass is realized. On this basis, the proposed numerical simulation method is used to simulate the large-area roof caving of the large-angle working face, a scheme to control the stability of the working face by using the paste filling technology is proposed, and the material parameters of the filling body are determined. The research results show that when the water-cement ratio of the backfill is 3 : 1, the simulation and field trial results are good, and the safe and efficient mining of the large-angle composite roof working face is realized, which verifies the feasibility and correctness of the coupled simulation method. At the same time, the research results can provide a reference for controlling the roof fall area of the working face with a large inclination angle.

show abstract

Stability Mechanism and Control Technology for Fully Mechanized Caving Mining of Steeply Inclined Extra-Thick Seams with Variable Angles

Cited by 7 publications

References 9 publications

Algorithm Optimization and Performance Improvement of Data Visualization Analysis Platform based on Artificial Intelligence

Algorithm Optimization and Performance Improvement of Data Visualization Analysis Platform based on Artificial Intelligence

Study on Overburden Movement Deformation and Roof Breakage Law of Under-Protective Steeply Inclined Coal Seam Mining

Numerical Simulation Study on Stability Control Technology of Large-Area Wall Caving Area (LAWCA) in Large-Inclined Face

Contact Info

Product

Resources

About