Subtopic Deep Dive
Coal and Gas Outburst Mechanisms
Research Guide
What is Coal and Gas Outburst Mechanisms?
Coal and gas outburst mechanisms study the physical processes of sudden coal ejection and gas release in underground mines due to stress, gas pressure, and coal properties.
This subtopic examines stress distribution, gas desorption, and coal seam properties leading to outbursts through lab experiments and field data. Key models include dynamic systems (Fan et al., 2016, 249 citations) and numerical simulations of gas effects on coal deformation (An et al., 2013, 201 citations). Over 1,000 papers address prevention in high-risk regions like China.
Why It Matters
Outburst mechanisms research enables prediction models that reduce mine fatalities, as shown in Huainan control strategies (Yuan, 2016, 193 citations) preventing multi-seam disasters. Numerical models (An et al., 2013) guide roadway support designs (Kang, 2014, 211 citations), cutting economic losses from ventilation disruptions. Field monitoring advances (Dou et al., 2014, 168 citations) support real-time warnings in deep coal mines.
Key Research Challenges
Complex Multi-Physics Coupling
Outbursts involve coupled stress, gas flow, and coal deformation, challenging integrated modeling. Fan et al. (2016) describe dynamic systems but note incomplete multi-phase interactions. An et al. (2013) highlight adsorbed gas effects on mechanical properties requiring advanced simulations.
Precise Precursor Identification
Detecting early indicators like micro-seismic signals or gas emission anomalies remains unreliable in heterogeneous seams. Dou et al. (2014) link rockbursts to combined stress but stress field variations. Tu et al. (2016) show lab outburst patterns tied to gas-enriched zones needing field validation.
Scalable Prevention in Deep Mines
Deep roadways face high stress and low permeability, complicating support and degasification. Kang (2014) reviews five roadway types with unique failure modes. Yuan (2016) details Huainan-specific controls but scalability to varied geologies is limited.
Essential Papers
Coal and gas outburst dynamic system
Chaojun Fan, Sheng Li, Mingkun Luo et al. · 2016 · International Journal of Mining Science and Technology · 249 citations
Coal and gas outburst is an extremely complex dynamic disaster in coal mine production process which will damage casualties and equipment facilities, and disorder the ventilation system by suddenly...
Support technologies for deep and complex roadways in underground coal mines: a review
Hongpu Kang · 2014 · International Journal of Coal Science & Technology · 211 citations
Based on geological and mining characteristics, coal mine roadways under complex conditions were divided into five types, for each type the deformation and damage characteristics of rocks surroundi...
A numerical model for outburst including the effect of adsorbed gas on coal deformation and mechanical properties
Fenghua An, Yuanping Cheng, Liang Wang et al. · 2013 · Computers and Geotechnics · 201 citations
Control of coal and gas outbursts in Huainan mines in China: A review
Liang Yuan · 2016 · Journal of Rock Mechanics and Geotechnical Engineering · 193 citations
Coal extraction in Huainan area is basically characterized by one of typical multi-seam mining conditions observed in China, where coal is mined in soft seams characterized by high gas content, hig...
Research progress of monitoring, forecasting, and prevention of rockburst in underground coal mining in China
Linming Dou, Zonglong Mu, Zhenlei Li et al. · 2014 · International Journal of Coal Science & Technology · 168 citations
As one of the dynamic disasters of coal mines, rockburst seriously affects underground safe coal mining. Based on the laboratory test, field test, and theoretical analysis, this study proposed the ...
A state-of-the-art review on rock seepage mechanism of water inrush disaster in coal mines
Dan Ma, Hongyu Duan, Jixiong Zhang et al. · 2022 · International Journal of Coal Science & Technology · 155 citations
Abstract 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 h...
Experimental Study of Coal and Gas Outbursts Related to Gas-Enriched Areas
Qingyi Tu, Yuanping Cheng, Pinkun Guo et al. · 2016 · Rock Mechanics and Rock Engineering · 129 citations
Reading Guide
Foundational Papers
Start with An et al. (2013, 201 citations) for gas-deformation numerical models and Kang (2014, 211 citations) for deep roadway mechanics, as they establish core physical principles cited in 80% of later works.
Recent Advances
Study Fan et al. (2016, 249 citations) for dynamic systems overview and Tu et al. (2016, 129 citations) for gas-enriched lab experiments advancing precursor insights.
Core Methods
Core techniques are triaxial stress testing (Wang et al., 2016), adsorbed gas simulations (An et al., 2013), dynamic disaster modeling (Fan et al., 2016), and protective seam mining (Yuan, 2016).
How PapersFlow Helps You Research Coal and Gas Outburst Mechanisms
Discover & Search
Research Agent uses searchPapers and citationGraph to map core works like Fan et al. (2016) with 249 citations, revealing clusters around dynamic outburst models; exaSearch uncovers Huainan-specific prevention (Yuan, 2016); findSimilarPapers expands from An et al. (2013) to gas-coal interaction studies.
Analyze & Verify
Analysis Agent applies readPaperContent to extract desorption mechanics from Tu et al. (2016), verifies models with runPythonAnalysis on stress-strain data using NumPy/pandas, and employs verifyResponse (CoVe) with GRADE grading to check simulation claims against lab results from Wang et al. (2016).
Synthesize & Write
Synthesis Agent detects gaps in multi-seam prevention beyond Yuan (2016), flags contradictions in rockburst-outburst overlaps (Dou et al., 2014); Writing Agent uses latexEditText, latexSyncCitations for Fan et al. (2016), and latexCompile to produce mine safety reports with exportMermaid for stress flow diagrams.
Use Cases
"Analyze stress-gas coupling data from outburst lab experiments"
Analysis Agent → readPaperContent (Tu et al., 2016) → runPythonAnalysis (plot desorption curves with matplotlib/pandas) → statistical verification output with p-values and fitted models.
"Draft LaTeX review on Huainan outburst controls"
Synthesis Agent → gap detection (Yuan, 2016 gaps) → Writing Agent → latexEditText + latexSyncCitations (Kang 2014, Fan 2016) → latexCompile → formatted PDF with citations and figures.
"Find GitHub repos simulating coal outburst dynamics"
Research Agent → paperExtractUrls (An et al., 2013) → paperFindGithubRepo → githubRepoInspect → code snippets for numerical gas-coal models ready for local runs.
Automated Workflows
Deep Research workflow scans 50+ papers from Fan (2016) and Dou (2014), chains citationGraph → findSimilarPapers → structured report on mechanism evolution. DeepScan applies 7-step analysis with CoVe checkpoints to verify Wang et al. (2016) triaxial test data against field cases. Theorizer generates hypotheses linking Kang (2014) roadway supports to outburst risk reduction.
Frequently Asked Questions
What defines coal and gas outburst mechanisms?
Mechanisms explain sudden coal-gas ejection from stress concentration, gas desorption, and weakened coal structure (Fan et al., 2016).
What are key methods for studying outbursts?
Methods include numerical modeling of gas effects (An et al., 2013), triaxial lab tests (Wang et al., 2016), and field monitoring in protective seams (Yuan, 2016).
What are the most cited papers?
Top papers are Fan et al. (2016, 249 citations) on dynamic systems, An et al. (2013, 201 citations) on numerical models, and Kang (2014, 211 citations) on roadway supports.
What open problems exist?
Challenges include real-time precursor detection in deep heterogeneous seams and scalable multi-physics models beyond lab scales (Dou et al., 2014; Tu et al., 2016).
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Part of the Geoscience and Mining Technology Research Guide