A5010037091- Coal Properties and Utilization
- Rock Mechanics and Modeling
- Landslides and related hazards
- Hydrocarbon exploration and reservoir analysis
- Geoscience and Mining Technology
- Air Quality Monitoring and Forecasting
- Geophysical and Geoelectrical Methods
- Fire Detection and Safety Systems
- Geomechanics and Mining Engineering
- Geotechnical and Geomechanical Engineering
- Hydraulic Fracturing and Reservoir Analysis
- Geomagnetism and Paleomagnetism Studies
- NMR spectroscopy and applications
- Geophysical Methods and Applications
- Safety and Risk Management
- Atmospheric and Environmental Gas Dynamics
- Yersinia bacterium, plague, ectoparasites research
- Methane Hydrates and Related Phenomena
- Technology and Security Systems
- Evaluation and Optimization Models
- Traffic Prediction and Management Techniques
- Seismic Imaging and Inversion Techniques
- Geological and Geophysical Studies
- Earthquake Detection and Analysis
- Groundwater flow and contamination studies
Henan University of Urban Construction
2023-2025
Henan Polytechnic University
2020-2022
Henan Forestry Vocational College
2022
The characteristics and heterogeneity of coal pores are crucial for understanding the production mechanism coalbed methane (CBM). In this study, samples with varying degrees metamorphism (0.58% ≤ RO, max 3.44%) were collected. pore development heterogeneous properties revealed through low-temperature nitrogen adsorption (LTNA) low-field nuclear magnetic resonance (NMR) experiments. results indicate that diameters exhibit favorable in low-rank coals, along connectivity. micropores composition...
As coal mine production enters the deep mining stage, impact of and rock dynamic hazards is becoming more significant. And containing initial damage such as fractures are susceptible to destabilization by disturbance. So, this paper takes macro-crack with different inclination angles research object uses RMT-150B mechanics system carry out uniaxial loading rupture tests on specimens. On basis, changes in infrared radiation surface observed using an thermal imaging camera, it analyzed studied...
In order to study the precursor information of infrared radiation temperature coal containing macro-cracks during load bearing damage, monitoring tests instability damage under different crack inclination angles are designed. Based on critical slowing down theory, variance and autocorrelation coefficients series calculated reflect precursors provide a theoretical basis for early warning rock dynamic hazards. The results show that sequences pre-cracked coals have effect. coefficient MIRT...
The instability and failure processes of coal-rock combinations are accompanied by the release acoustic emission (AE) infrared radiation (IR) signals. To investigate characteristics AE IR signals during process in with different ratios, to analyze effectiveness applicability monitoring methods for these two various specimen ratios. In this paper, uniaxial compression tests were conducted on seven ratios using rock mechanics loading system cooperative platform emission. results show that (1)...
Soft coal is characterized by low strength and weak bonds, which play a key role in the occurrence development of dynamic disasters. A more thorough understanding failure mechanics infrared radiation characteristics soft at various moisture contents needed. In this study, experiments were conducted for contents. The results indicate that content affects compressive elastic modulus with being highest moderate. Moisture has substantial influence on compressed samples. coals high show smaller...
To further improve the accuracy of recurrent neural network in predicting gas concentration upper corner mine tunnel, this paper proposes a method to construct prediction model based on multiple sequence long and short memory network, considering spatial correlation between return airway corner. The reliability construction is improved by using white noise test smoothness verify interpretability data constructing supervised learning type for training testing means set division windowing....
Joint inversion is one of the most effective methods for reducing non-uniqueness geophysical inversion. The current joint can be divided into structural consistency constraint and petrophysical methods, which are mutually independent. Currently, there a need that comprehensively consider constraints constraints. This paper develops similarity index (SSIM) as new gravity vertical gradient data. SSIM in form fraction, may have analytical singularities. Therefore, converting fractional to...
Joint inversion is a crucial approach to mitigate the non-uniqueness problem in geophysical inversion. Nevertheless, existing joint methods fall short of meeting stringent requirements high-precision exploration, necessitating development new techniques. In this paper, we introduce Structural Similarity Index (SSIM) as novel structural consistency constraint for gravity and magnetic data. Compared with results cross-gradient inversion, our method demonstrates outstanding performance...
Coal mine safety production is undoubtedly the cornerstone of healthy, table, and sustainable development China’s coal industry, it also profoundly affects effective implementation national energy strategy. In this context, exploring application network models in management strategies not only has significant practical significance, but profound value. By integrating these factors, we can have a more comprehensive understanding causes accidents provide scientific basis for formulating...
There has been extensive research on the partial differential equations governing theory of gas flow in coal mines. However, traditional Proper Orthogonal Decomposition–Radial Basis Function (POD-RBF) reduced-order algorithm requires significant computational resources and is inefficient when calculating high-dimensional data for mine pressure fields. To achieve rapid computation extraction fields, this paper proposes a model reduction method based deep neural networks (DNNs) convolutional...
The quality and efficiency of coalbed methane (CBM) drainage are critical for the safety production coal mining enterprises in China. Air leakage should be prevented during CBM because it can reduce concentration induce produce accidents such as seam spontaneous combustion. However, existing theoretical models do not consider air effect. It is necessary to pay attention that exists penetrating-strata boreholes risks. This study sets up a new gas-solid coupling model which effect taken into...
<title>Abstract</title> The destabilization and damage process of the coal-rock body is accompanied by release acoustic thermal signals. In order to investigate precursor signal characteristics combination bodies with different ratios, analyze reliability applicability warning signals, this paper carries out uniaxial compression tests 7 ratios combined specimens using rock mechanics loading test system synchronous monitoring platform IR AE analyzes destructive feature laws in terms...
To understand the nanoscale pore development characteristics of closed coal under combined influence temperature and confined pressure, a series experiments at different temperatures pressures were carried out using custom pressure experimental system. The lean samples taken from mining area in Qinshui Basin, North China. In these experiments, was 200 °C or 300 °C, 14 MPa 23 MPa, respectively, experiment duration 12 h. CH 4 /N 2 /CO isothermal adsorption tests on all samples. results show...