International Journal of Mining Science and Technology最新文献

Dynamic magnification of strainburst demand by soft loading system stiffness in synthetic hard brittle rock specimens 软加载系统刚度对合成硬脆岩石试样应变冲击需求的动态放大

IF 11.8 1区工程技术

International Journal of Mining Science and Technology Pub Date : 2026-08-29 DOI: 10.1016/j.ijmst.2026.08.001

Fedilberto J. Gonzalez, Peter K. Kaiser, Mark S. Diederichs

{"title":"Dynamic magnification of strainburst demand by soft loading system stiffness in synthetic hard brittle rock specimens","authors":"Fedilberto J. Gonzalez, Peter K. Kaiser, Mark S. Diederichs","doi":"10.1016/j.ijmst.2026.08.001","DOIUrl":"https://doi.org/10.1016/j.ijmst.2026.08.001","url":null,"abstract":"Deep hard-rock mines may develop progressively softer loading environments as extraction advances, particularly near cave footprints, and highly stressed excavation boundaries. Under these conditions, brittle collapse may shift from a material-controlled failure process to a system-controlled instability driven by excess elastic strain energy released from the mine loading system. Although very stiff testing machines are essential for capturing the characteristic post-peak behaviour of brittle rock, they do not reproduce the softer loading conditions that commonly govern dynamic damage in mining environments. Numerical experiments using the discontinuum code PFC2D were conducted to investigate how loading system stiffness (LSS) influences the post-peak response of unsupported synthetic hard brittle rock. The model setup was first verified to confirm the global force–displacement response. Quasi-static and dynamic uniaxial compression simulations were then performed under different LSS conditions to quantify post-peak behaviour and damage magnification during dynamic brittle collapse. The results show that intrinsic rock properties primarily govern the response under stiff LSS conditions, such as isolated tunnel advances. Under soft loading, as may occur during late-stage extraction or near cave footprints, excess elastic strain energy from the LSS becomes increasingly influential and magnifies specimen-scale strainburst intensity (ejection velocity of breakout formations), severity (ejected mass at test termination), and bulking response (stress-induced fractured ground). The characteristic specimen-scale rupture duration for localized fragment ejection ranges from 0.10 to 0.22 ms. These sub-millisecond values reflect the small, mobilized volume and low inertial resistance of the unsupported specimen and should not be directly extrapolated to excavation-scale strainburst durations.","PeriodicalId":48625,"journal":{"name":"International Journal of Mining Science and Technology","volume":"492 1","pages":""},"PeriodicalIF":11.8,"publicationDate":"2026-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148884008","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Multi-factor contributions to blast-induced rock fragmentation behavior 多因素对爆破岩石破碎行为的影响

IF 11.8 1区工程技术

International Journal of Mining Science and Technology Pub Date : 2026-08-28 DOI: 10.1016/j.ijmst.2026.08.003

Xudong Li, Chuan He, Xinrui Zhao, Guowen Xu, Bo Wang, Leilei Liu, Peng Ying, Xiaomin Wang

{"title":"Multi-factor contributions to blast-induced rock fragmentation behavior","authors":"Xudong Li, Chuan He, Xinrui Zhao, Guowen Xu, Bo Wang, Leilei Liu, Peng Ying, Xiaomin Wang","doi":"10.1016/j.ijmst.2026.08.003","DOIUrl":"https://doi.org/10.1016/j.ijmst.2026.08.003","url":null,"abstract":"Blast-induced rock fragmentation is governed by multiple factors, yet their relative contributions remain unclear. In this study, five sandstones with markedly different physical and mechanical properties were selected. A multi-dimensional dataset comprising 43 features was constructed through mineralogical identification, static and dynamic mechanical testing, and laboratory blasting. Pearson correlation and SHAP analysis were employed to systematically evaluate the influence of each factor on mean fragment size obtained in laboratory-scale single-hole blasting tests. The results indicate that blasting parameters dominate fragmentation, followed by physical–mechanical properties, and then microscopic mineral characteristics. Charge density, charge mass, and charge structure rank as the top three influencing factors. High charge density and effective stemming significantly reduce fragment size. Dense, high-strength rocks tend to produce larger fragments, whereas high-porosity rocks, when combined with high charge density and effective stemming, enable efficient utilization of blast energy. Mineral composition and grain size show limited influence, with SHAP values generally below 0.5. In engineering practice, charge density and charge structure should be prioritized as key control measures, supplemented by rapidly measurable indicators such as wave velocity and density to assess rock blastability. Blasting schemes should be tailored to lithological variations to achieve efficient and cost-effective fragmentation.","PeriodicalId":48625,"journal":{"name":"International Journal of Mining Science and Technology","volume":"9 1","pages":""},"PeriodicalIF":11.8,"publicationDate":"2026-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148884011","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Mechanism of anthracite wetting and dust suppression regulated by surfactant tail chain type: Insights from experiments and multiscale simulations 表面活性剂尾链型调控无烟煤润湿抑尘机理：来自实验和多尺度模拟的见解

IF 11.8 1区工程技术

International Journal of Mining Science and Technology Pub Date : 2026-08-27 DOI: 10.1016/j.ijmst.2026.08.004

Ben Ji, Bingyou Jiang, Wenhan Tao, Kunlun Lu, Yanan Yuan, Xialong Xin, Luyao Guan, Zhiyuan Han

{"title":"Mechanism of anthracite wetting and dust suppression regulated by surfactant tail chain type: Insights from experiments and multiscale simulations","authors":"Ben Ji, Bingyou Jiang, Wenhan Tao, Kunlun Lu, Yanan Yuan, Xialong Xin, Luyao Guan, Zhiyuan Han","doi":"10.1016/j.ijmst.2026.08.004","DOIUrl":"https://doi.org/10.1016/j.ijmst.2026.08.004","url":null,"abstract":"The high hydrophobicity of anthracite poses severe dust suppression challenges in mining, resulting in critical occupational health risks. To overcome conventional surfactant limitations, a multiscale framework integrating macroscopic experiments, molecular dynamics (MD) simulations, and density functional theory (DFT) was established to elucidate how hydrophobic tail types (C–H, Si–C, and C–F) regulate anthracite wettability. Macroscopic evaluations reveal that the fluorocarbon-tail surfactant FS–50 outperforms the silicon–carbon (PMHT) and hydrocarbon (APG–08) surfactants, exhibiting the fastest spreading kinetics and a 68.4% dust suppression efficiency, approximately 1.8 times that of pure water. To elucidate the underlying interfacial mechanisms, MD simulations based on an experimentally coal model, uncovering a dual–drive wetting mechanism for fluorocarbon-tail: it enhances solid–liquid adhesion by anchoring water molecules to the coal surface while weakening liquid–liquid cohesion by disrupting hydrogen bond networks. Consequently, FS–50 achieves the lowest microscopic contact angle of 30.31° and maximum spreading area of 6639.81 Å<ce:sup loc=\"post\">2</ce:sup>. At the electronic level, DFT calculations confirm that tail structures significantly modulate headgroup hydration. FS–50 exhibits the strongest headgroup polarity and electrostatic driving force, characterized by an interaction energy of 0.06417 a.u. These findings provide an integrated macroscopic performance interfacial structure electronic mechanism framework for designing high efficiency surfactant for dust control.","PeriodicalId":48625,"journal":{"name":"International Journal of Mining Science and Technology","volume":"26 1","pages":""},"PeriodicalIF":11.8,"publicationDate":"2026-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148884051","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Manganese(II) chloride and trisodium phosphate as a combined depressant for chalcopyrite–talc separation: Flotation performance and interaction mechanism 氯化锰与磷酸三钠联合抑制剂对黄铜矿—滑石分离的浮选性能及作用机理

IF 11.8 1区工程技术

International Journal of Mining Science and Technology Pub Date : 2026-08-14 DOI: 10.1016/j.ijmst.2026.07.006

Shuai Ning, Jiaping Chen, Tingwei Fu, Ruizeng Liu, Dianwen Liu

引用次数: 0

Stress wave attenuation by roof-cutting pre-splitting in deep coal mine roadways: mechanism and experimental validation 深部煤矿巷道切顶预裂应力波衰减：机理与试验验证

IF 11.8 1区工程技术

International Journal of Mining Science and Technology Pub Date : 2026-08-13 DOI: 10.1016/j.ijmst.2026.08.002

Jian Jiang, Jiong Wang, Biaowei Sang, Guangyuan Yu, Lei Ma, Tizhuang Zhang, Wenzhao Liang, Yiwen Chang, Manchao He

引用次数: 0

Oxygen-lean thermokinetics and early-warning of Laojunmiao non-caking coal in Xinjiang coalfield 新疆煤田老君庙无结块煤贫氧热动力学及预警

IF 11.8 1区工程技术

International Journal of Mining Science and Technology Pub Date : 2026-08-10 DOI: 10.1016/j.ijmst.2026.07.005

Jinrui Wang, Jun Deng, Tarek L. Rashwan, Gaoyang Qu, Shuaijing Ren, Dengzhen Liu

{"title":"Oxygen-lean thermokinetics and early-warning of Laojunmiao non-caking coal in Xinjiang coalfield","authors":"Jinrui Wang, Jun Deng, Tarek L. Rashwan, Gaoyang Qu, Shuaijing Ren, Dengzhen Liu","doi":"10.1016/j.ijmst.2026.07.005","DOIUrl":"https://doi.org/10.1016/j.ijmst.2026.07.005","url":null,"abstract":"Coalfield fire zones in Xinjiang exhibit oxygen-lean conditions caused by persistent endogenous combustion, which alters the spontaneous-combustion behavior of coal. This study investigated the thermokinetic characteristics of Laojunmiao non-caking coal under three oxygen-lean atmospheres (3%, 9%, and 15% O<ce:inf loc=\"post\">2</ce:inf>) and one atmospheric reference condition (21% O<ce:inf loc=\"post\">2</ce:inf>) using thermogravimetric-differential scanning calorimetry and temperature-programmed heating experiments. Five characteristic temperatures and three main oxidation stages were identified. With increasing oxygen concentration, thermal decomposition and oxidation shifted to lower temperatures, heat release intensified, the maximum exothermic peak moved 30–40 ℃ lower, and mass loss increased from about 84% to more than 92%. The full-process average activation energy obtained by the Kissinger method increased from 79.12 kJ/mol at 3% O<ce:inf loc=\"post\">2</ce:inf> to 95.78 kJ/mol at 15% O<ce:inf loc=\"post\">2</ce:inf> and then decreased to 92.77 kJ/mol at 21% O<ce:inf loc=\"post\">2</ce:inf>. In combination with the stage-resolved Flynn-Wall-Ozawa/Kissinger-Akahira-Sunose(FWO/KAS) results, heat-release behavior, and index-gas evolution, approximately 15% O<ce:inf loc=\"post\">2</ce:inf> was identified as a kinetic transition concentration from oxygen-limited oxidation to more active coal oxidation. Carbon monoxide dominated under strongly oxygen-lean atmospheres, whereas carbon dioxide and hydrocarbons formed earlier and in larger amounts when the oxygen concentration increased to 15% O<ce:inf loc=\"post\">2</ce:inf> or the atmospheric reference level. An eight-stage early-warning index was established for the Laojunmiao fire zone, providing a basis for oxygen-control strategies and spontaneous-combustion prevention in Xinjiang coalfields.","PeriodicalId":48625,"journal":{"name":"International Journal of Mining Science and Technology","volume":"8 1","pages":""},"PeriodicalIF":11.8,"publicationDate":"2026-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148715969","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Dynamic mechanical response characteristics and damage constitutive model of axially anchored bodies under graded confining pressures 梯度围压下轴锚体动态力学响应特征及损伤本构模型

IF 11.8 1区工程技术

International Journal of Mining Science and Technology Pub Date : 2026-08-03 DOI: 10.1016/j.ijmst.2026.07.004

Lei Fan, Jucai Chang, Zhiqiang Yin, Hongda Wang

{"title":"Dynamic mechanical response characteristics and damage constitutive model of axially anchored bodies under graded confining pressures","authors":"Lei Fan, Jucai Chang, Zhiqiang Yin, Hongda Wang","doi":"10.1016/j.ijmst.2026.07.004","DOIUrl":"https://doi.org/10.1016/j.ijmst.2026.07.004","url":null,"abstract":"To clarify the dynamic response of a local anchorage bearing unit subjected to coupled impact loading and radial confinement, the axial front-end unit of a roadway bolt support system was idealized as a bolt–resin–rock composite cylinder. Coupled static–dynamic impact tests were conducted at confining pressures of 0, 2, 4, 6, and 8 MPa using a modified Split Hopkinson Pressure Bar (SHPB) system. The incident compressive pulse was applied parallel to the bolt axis to represent compression-dominated disturbances transmitted along the reinforcement direction. At an impact gas pressure of 0.6 MPa, increasing the confining pressure from 0 to 8 MPa increased the dynamic peak stress from 61.27 to 100.79 MPa, decreased the peak strain from 0.01073 to 0.00567, increased the terminal transmitted energy from 40 to 141 J, and decreased the terminal apparent absorbed energy from 71 to 49 J. The dynamic equivalent wave impedance ratio increased from 0.085 to 0.168, indicating progressively improved impedance matching and wave transmission capacity. A confinement-dependent segmented equivalent damage constitutive model was established by combining the strain equivalence principle, Weibull statistical damage theory, and an unloading–rebound branch. The model reproduced the loading stage, peak point, and dominant post-peak response path, with an average <ce:italic>R</ce:italic><ce:sup loc=\"post\">2</ce:sup> of 0.969 and an average RMSE of 3.102. The proposed model is intended to characterize equivalent responses within the calibrated laboratory range. These results provide a basis for interpreting the confinement-dependent impact response of axially anchored bearing units in deep roadway support systems.","PeriodicalId":48625,"journal":{"name":"International Journal of Mining Science and Technology","volume":"19 1","pages":""},"PeriodicalIF":11.8,"publicationDate":"2026-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148691046","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Mechanical response characteristics and damage evolution mechanisms of deep rock masses under coupled loading–unloading-support-disturbance effects 加载-卸载-支护-扰动耦合作用下深部岩体力学响应特征及损伤演化机制

IF 15.9 1区工程技术

International Journal of Mining Science and Technology Pub Date : 2026-08-01 Epub Date: 2026-06-27 DOI: 10.1016/j.ijmst.2026.06.006

Minjie Qi, Guangming Zhao, Xiangrui Meng, Chongyan Liu, Wensong Xu, Longpei Ma, Xin Xu, Yaoyuan Zhang

{"title":"Mechanical response characteristics and damage evolution mechanisms of deep rock masses under coupled loading–unloading-support-disturbance effects","authors":"Minjie Qi, Guangming Zhao, Xiangrui Meng, Chongyan Liu, Wensong Xu, Longpei Ma, Xin Xu, Yaoyuan Zhang","doi":"10.1016/j.ijmst.2026.06.006","DOIUrl":"10.1016/j.ijmst.2026.06.006","url":null,"abstract":"<div><div>To reveal the mechanical response characteristics of deep rock masses under the complete engineering disturbance chain of “stress loading, excavation unloading, support reinforcement, and cyclic disturbance,” this study employed a true triaxial testing system combined with acoustic emission monitoring to conduct rock mass failure tests under coupled loading–unloading-support-disturbance actions. Results indicate that unloading is the dominant factor inducing rock mass damage and degradation, reducing strength by 31.57% compared to static loading. The superimposed disturbance effect further decreases the strength by 17.40%. Support partially restored rock strength and stiffness, increasing them by 7.29% and 10.37%, respectively, compared with pure unloading. Unloading increased dissipated energy per stress increment, and support achieved a dual effect of “energy dissipation and damage suppression” by inhibiting repeated crack reopening. Along the undisturbed path, damage accumulated slowly early and then exhibits a concentrated late-stage jump. Under disturbance, damage followed an “increase during loading, gradual change during unloading, and sharp surge at failure” pattern, with a markedly smaller rise in the damage variable at final instability than under the undisturbed path. Under disturbed conditions, intact rock showed the Kaiser effect, whereas unloaded rock subsequently exhibited the Felicity effect, supporting delayed Felicity onset, enhancing stress memory and disturbance resistance.</div></div>","PeriodicalId":48625,"journal":{"name":"International Journal of Mining Science and Technology","volume":"36 8","pages":"Pages 1655-1673"},"PeriodicalIF":15.9,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148356403","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Preliminary damage detection and rockburst early warning for coal-rock composite based on PCA-DBSCAN 基于PCA-DBSCAN的煤岩复合材料损伤初步检测与岩爆预警

IF 15.9 1区工程技术

International Journal of Mining Science and Technology Pub Date : 2026-08-01 Epub Date: 2026-06-05 DOI: 10.1016/j.ijmst.2026.05.009

Fei Wu, Yongrui Li, Fengyuan Li, Shuo Gao, Qingzhe Cui, Chunfeng Ye, Cunbao Li

{"title":"Preliminary damage detection and rockburst early warning for coal-rock composite based on PCA-DBSCAN","authors":"Fei Wu, Yongrui Li, Fengyuan Li, Shuo Gao, Qingzhe Cui, Chunfeng Ye, Cunbao Li","doi":"10.1016/j.ijmst.2026.05.009","DOIUrl":"10.1016/j.ijmst.2026.05.009","url":null,"abstract":"<div><div>Rockbursts frequently occur during deep mining. They are catastrophic failures of the coal-rock composite (CRC); however, identifying their precursory signals remains challenging. This study presents a principal component analysis (PCA)-density-based spatial clustering of applications with noise (DBSCAN)-assisted workflow for warning-time analysis of CRCs. Conventional uniaxial and cyclic loading-unloading tests were conducted on CRC with four different roof rock lithologies. PCA was used to reduce redundancy among multiple acoustic emission (AE) parameters, and DBSCAN was used to organize AE samples in the reduced feature space for subsequent warning-time analysis. The results indicate an inflection point in the axial strain rate before failure, which may reflect a transition in the deformation state of the composite near the critical stage. AE signal evolution shows distinct stages, with AE count and AE energy rising sharply near failure. The PCA-DBSCAN-assisted workflow identifies different warning-related patterns: responses in the coal body are more dispersed and appear earlier, whereas responses in the roof rock are more concentrated closer to failure. The workflow provides a structured basis for organizing correlated AE responses and comparatively analyzing warning-related evolution in the coal body and the roof rock. Importantly, warning time is affected by roof lithology and generally appears earlier in the coal body than in the roof rock. These findings provide a laboratory-scale basis for comparative warning analysis of CRCs under different lithological conditions.</div></div>","PeriodicalId":48625,"journal":{"name":"International Journal of Mining Science and Technology","volume":"36 8","pages":"Pages 1703-1718"},"PeriodicalIF":15.9,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148290061","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Pore-fracture response characteristics of coal under triaxial stress paths revealed by in-situ LF-NMR and fractal theory 利用原位LF-NMR和分形理论揭示三轴应力路径下煤的孔隙-破裂响应特征

IF 15.9 1区工程技术

International Journal of Mining Science and Technology Pub Date : 2026-08-01 Epub Date: 2026-06-26 DOI: 10.1016/j.ijmst.2026.06.004

Hexiang Xu, Cheng Zhai, Hongda Wen, Jizhao Xu, Yong Sun, Ting Liu, Shuang Li, Zhengzheng Tang, Bingyou Jiang, Bobo Li

{"title":"Pore-fracture response characteristics of coal under triaxial stress paths revealed by in-situ LF-NMR and fractal theory","authors":"Hexiang Xu, Cheng Zhai, Hongda Wen, Jizhao Xu, Yong Sun, Ting Liu, Shuang Li, Zhengzheng Tang, Bingyou Jiang, Bobo Li","doi":"10.1016/j.ijmst.2026.06.004","DOIUrl":"10.1016/j.ijmst.2026.06.004","url":null,"abstract":"<div><div>To investigate the evolution of pore-fracture structure (PFS) in coal under stress constraints, real-time nuclear magnetic resonance tests were conducted on coal samples subjected to four stress paths (SP-I to IV). The PFS evolution, fractal characteristics, failure morphology, and permeability contribution were analyzed using <em>T</em><sub>2</sub> spectra, nuclear magnetic resonance images (NMRIs), and fractal theory. The results show that stress paths significantly influence pore compaction, dilation, and fracture development. SP-III exhibits the most significant promotion of pore dilation before coal failure, followed by SP-IV and SP-II, whereas SP-I suppresses pore dilation. Confining pressure unloading promotes pore dilation, whereas the effect of axial loading depends on the confining pressure reduction. Coal failure significantly reduces pore heterogeneity, accompanied by a decrease in the pore fractal dimension (<em>D</em><sub>b</sub>). Multifractal parameters Δ<em>α</em> and <em>A</em><sub>c</sub> were associated with pore compression, dilation and microfracture nucleation, while <em>H</em><sub>c</sub> served as a robust index of pore connectivity. The failure mode of SP-I was shear-dominant, while the remaining stress paths manifested a combined tensile-shear failure. The failure zone of SP-III exhibited the highest morphological complexity, followed by SP-IV, SP-II, and SP-I. The stress path significantly influenced the permeability contribution of PFS within the 100–1000 ms, highlighting distinct permeability responses under different stress paths. These findings provide valuable insights into the mechanisms governing gas migration in coal seams.</div></div>","PeriodicalId":48625,"journal":{"name":"International Journal of Mining Science and Technology","volume":"36 8","pages":"Pages 1569-1587"},"PeriodicalIF":15.9,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148355998","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0