Results 81 to 90 of about 1,845,683 (177)

Research on Mechanical Response Mechanisms of Interlayer Rock Strata in Closely Spaced Coal Seam Mining

Advances in Civil Engineering, Volume 2026, Issue 1, 2026.
Closely spaced coal seams holds significant importance in global energy development, as the mechanical response mechanism of interlayer rock strata directly governs roadway deformation and stress concentration levels. This study investigates the impact of bearing structures within interlayer strata on the stability of surrounding rock during closely ...
Yuancheng Pei, Pucheng Rui, Fengyuan Lv, Wenyue Qi, Qiming Wei, Xiaolong Sun   +5 more
wiley   +1 more source

Synergistic Stability Control of Gob-Side Roadways with Small Coal Pillars: Theory and Field Practice

Processes
To address the instability of small coal pillars in gob-side entry driving under thick and hard roof conditions, this study proposes a synergistic control technology combining “pressure relief, bundle control, and strong support”. First, a segmented deflection curve model of the coal pillar was established to quantify the correlation between pillar ...
Guangwen Liu, Xuehui Li, Changhu Li, Yujie Wu, Xinshuai Shi, JianGuo Ning   +5 more
openaire   +1 more source

Roof Deformation Mechanism and Control Technology of Bottom‐Driven Roadway in Deep Thick Coal Seam

Advances in Civil Engineering, Volume 2026, Issue 1, 2026.
During the mining of deep and thick coal seams, roadways are universally arranged along the seam floor due to the occurrence characteristic of large coal seam thickness. The roof of such bottom‐driven roadways features a coal–rock composite structure, which is highly susceptible to deformation and failure.
Yanghao Peng, Xianglin Dai, Zhenjie Peng, Aizhong Ding, Manoj Khandelwal   +4 more
wiley   +1 more source

Synergistic Bearing Effect and Failure Mechanism of Backfill–Coal Pillar Composite Structure

Advances in Civil Engineering, Volume 2026, Issue 1, 2026.
Constructing backfill walls adjacent to the yield coal pillar can effectively enhance its stability. The backfill and coal pillar form a synergistic bearing structure that jointly maintains the stability of the overlying strata. To reveal the synergistic bearing effect and failure mechanism of the backfill–coal pillar structure, this study first ...
Guangtao Wang, Yanpei An, Quansen Wu, Quanlin Wu, Hao Li, Chu Zhaofei   +5 more
wiley   +1 more source

A Review on Vehicle Tire Elastomers and Tire Wear Particles: Composition, Degradation Mechanisms, Analytical Methods, and Predictive Multiscale Computational Modeling

Advances in Polymer Technology, Volume 2026, Issue 1, 2026.
The study of the properties, chemical composition, and degradation patterns of rubber materials used in vehicle tires remains a complex and interdisciplinary task. Rubber for tires—more precisely, complex mixtures of elastomers containing fillers, plasticizers, binders, and other additives—is a condensed chemically active material, the composition and ...
Roman Tangalychev, Vasilii Korotenko, Valentin Ivanov, Srijoni Sengupta   +3 more
wiley   +1 more source

Mechanical analysis of floor deformation and floor heave control technology for gob-side entry retaining in medium thick coal seam with shallow cover depth

Meitan kexue jishu
Gob-side entry retaining technology is of great significance to improve coal recovery rate, improve roadway stress environment and ensure mine safety and efficiency.
Chaochao YAN, Guoen ZHANG, Tong CHANG, Pengfei WANG, Tianping WANG, Changquan WU   +5 more
doaj   +1 more source

Failure Mechanism and Support Control of Deep Gob-Side Entry Retaining in Top-Coal Roadways

Applied Sciences
To address the engineering challenges of asymmetric large surrounding rock deformation and roadway support failure of deep gob-side entry retaining (GER) in the top-coal roadway, the progressive surrounding rock instability mechanism and fracture spatiotemporal evolution characteristics are revealed via theoretical analysis and universal distinct ...
Jiahao Liu, Jianbiao Bai, Qingcang Wang, Feiteng Zhang, Shuaigang Liu, Xiangyu Wang, Shuai Yan   +6 more
openaire   +1 more source

Study on the Feasibility and Safety Control of Main Roadway Excavation Through the Dashuigou Protective Coal Pillar Area

Geofluids, Volume 2026, Issue 1, 2026.
To investigate the feasibility and safety control technologies for main roadway excavation through the Dashuigou protective coal pillar area, an elastoplastic mechanical model was used to characterize the roadway‐induced expansion of the plastic zone and determine the width of the residual elastic core.
Yuanyue Pi, Xin Wang, Yawei Zhu, Chenglong Wei, HE YONGLIANG   +4 more
wiley   +1 more source

Full cycle evolution law of energy-stress in the surrounding rock of the gob-side entry driving for adjacent advancing working face

Meitan kexue jishu
The full cycle dynamic pressure impact of the lateral basic roof fracture, rotation, and sinking of the upward working face along the gob excavation roadway in the face of mining is significant, and the roadway deformation is difficult to maintain.
Dingchao CHEN, Xiangyu WANG, Jianbiao BAI, Menglong LI, Jianfei LU, Feiteng ZHANG, Shiqi SUN, Xiangqian ZHAO, Yang YU   +8 more
doaj   +1 more source

Research on the Reasonable Coal Pillar Width and Surrounding Rock Supporting Optimization of Gob-Side Entry under Inclined Seam Condition

, 2021
In order to study the optimal coal pillar width and surrounding rock control mechanism of gob-side entry under inclined seam condition, the 130205 return air entry adjacent to 130203 gob in Yangchangwan No.
Li-li Jiang, Zeng-qiang Yang, Gang-wei Li   +2 more
core   +1 more source