Results 61 to 70 of about 1,490 (177)

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

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

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

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

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

Prevention of gob ignitions and explosions in longwall mining using dynamic seals

International Journal of Mining Science and Technology, 2017
Most, if not all longwall gob areas accumulate explosive methane-air mixtures that pose a deadly hazard to miners. Numerous mine explosions have originated from explosive gas zones (EGZs) in the longwall gob.
Jürgen F. Brune, Saqib A. Saki
doaj   +1 more source

Numerical analysis of shearer motion impact on longwall ventilation performance

Journal of Industrial Safety
The ventilation airflow in the longwall section of underground coal mines is significantly affected by the motion of mine equipment, particularly shearer operation.
Sadegh Sadeghi, Saiied M. Aminossadati, Mehmet Kizil, Christopher Leonardi   +3 more
doaj   +1 more source

The impact of longwall alignment with cut throughs on weighting events and longwall stability [PDF]

, 2017
Falls of ground are the single greatest hazard faced in an underground coal mining environment and with the industry continually driving to improve safety, any enhancement in ground control understanding is valuable. Chain pillar cut throughs have been observed to enhance overburden weighting effects.
openaire   +3 more sources