Results 51 to 60 of about 1,438 (180)

Failure mechanism of the coal wall at the working face based on an eccentric compression mechanical model

Deep Underground Science and Engineering, Volume 5, Issue 1, Page 127-143, March 2026.
In this study, the nonuniform distribution of the bearing pressure in front of the coal wall has been revealed based on in situ monitoring data and numerical simulation results. Therefore, an eccentric compression mechanical model of the coal wall was established to study the deformation and failure characteristics of a coal wall. The slenderness ratio
Maolin Tian, Jiabao Wang, Changsheng Wang, Shijie Sun, Lijun Han, Qingbin Meng, Sunhao Zhang   +6 more
wiley   +1 more source

Failure Mechanism of Asymmetric Large Deformations Under Repeated Mining in Roadways

Energy Science &Engineering, Volume 14, Issue 3, Page 1195-1212, March 2026.
Principal stress‐evolution diagram at different advance positions of 42205 working face. ABSTRACT To address the challenge of controlling severe asymmetrical deformation in roadways subjected to repeated mining, this study (i.e., based on the engineering context of the Buertai Coal Mine) investigated the characteristics of the regional stress field in ...
Ai‐Rong Wang, Tao Peng, Kang Zhou, Chong‐Yu Song   +3 more
wiley   +1 more source

Quantifying the Hydrological Niche of Upland Swamp Plant Communities Using Indicator Species

Ecohydrology, Volume 19, Issue 1, January‐February 2026.
ABSTRACT Coastal Upland Swamps of the Sydney Basin Bioregion, Australia, are highly biodiverse upland mires. Swamp vegetation organises into five communities, thought to occupy distinct positions along a hydrological gradient. Longwall mining reduces the duration of root zone saturation, but lack of quantitative understanding of hydrological niche ...
David C. Deane, Tanya J. Mason, Joe Cairns, Martin Krogh, David A. Keith   +4 more
wiley   +1 more source

Technologies of intensive development of potash seams by longwall faces at great depths: current problems, areas of improvement

Записки Горного института, 2023
The results of the analysis of practical experience in the development of potash seams using longwall mining systems at the mines of OAO “Belaruskali” are presented.
Vladimir P. Zubov, Denis G. Sokol
doaj  

Hardening and Hollowing Out Private Property: Rentiership, Dispossession, and Planetary Extraction in the Marcellus Shale

Antipode, Volume 58, Issue 1, January 2026.
Abstract Southwestern Pennsylvania (SWPA) has long been an energy extractive periphery, continuously remade through cycles of dispossession and accumulation. Here we examine the changing dynamics of private property in these cycles and its central role in the latest phase of extraction—unconventional oil and gas development (UOGD).
Owen Harrington, Jennifer Baka
wiley   +1 more source

Method for Characterizing the Development State and Spatiotemporal Evolution of Mining‐Induced Overburden Fractures

Advances in Civil Engineering, Volume 2026, Issue 1, 2026.
Mining‐induced coal seam extraction causes deformation and fracturing of the overburden, leading to the development of fractures, which pose significant threats to mine safety, surface structures, and natural ecosystems. To address the challenge of quantitatively characterizing overburden fractures caused by coal seam mining, this study, taking the 12 ...
Wei Zhu, Sihai Yi, Wenxiao Shi, Yue Li, Xing Li, Jinsui Wu, Shengqiang Jing, Wencong Chen, Jiaqiang Yao, Arnab Biswas   +9 more
wiley   +1 more source

Distribution Characteristics of Stress Sources and Surrounding Rock Structure Control Techniques of Gob‐Side Entry Driving in Extra‐Thick Coal Seam

Advances in Civil Engineering, Volume 2026, Issue 1, 2026.
To address the challenges of surrounding rock control caused by complex stress sources and intense ground pressure in gob‐side entry driving (GED) with narrow coal pillars under extra‐thick coal seams, this study takes the 10 m‐thick coal seam 8204 panel of Tashan Coal Mine as the engineering background.
Dongjie Jiang, Guangzhong Sun, Junjie Guo, Junwen Li, Xing Xu, Qi Ma, Arnab Biswas   +6 more
wiley   +1 more source

Particularities of exhibition of rock pressure in longwalls with poorly caving roof without pillar of excavation at the third layer of potassium salts of the Starobin deposit

Весці Нацыянальнай акадэміі навук Беларусі: Серыя фізіка-тэхнічных навук, 2016
Results of a study of state and load of near-the-kmgwall space in selective and gross longwalls with poorly caving roof without pillar of excavation at the third layer of potassium salts of the Starobin deposit are presented.
V. Ya. Prushak
doaj  

Development of a time-dependent energy model to calculate the mining-induced stress over gates and pillars

Journal of Rock Mechanics and Geotechnical Engineering, 2015
Generally, longwall mining-induced stress results from the stress relaxation due to destressed zone that occurs above the mined panel. Knowledge of induced stress is very important for accurate design of adjacent gateroads and intervening pillars which ...
Mohammad Rezaei, Mohammad Farouq Hossaini, Abbas Majdi   +2 more
doaj   +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