Results 61 to 70 of about 77,691 (273)

Probabilistic characterization of seepage‐induced tunnel face failure via a two‐phase double‐point material point method

Deep Underground Science and Engineering, EarlyView.
To address seepage‐induced tunnel face collapse, this study develops a two‐phase double‐point MPM framework to capture large‐deformation hydro‐mechanical interactions. Incorporating a cementation‐based constitutive model with dynamic permeability updates, the model is successfully validated against saturated granular‐column collapse experiments ...
Yue Tong, Mingliang Zhou, Jie Xu, Zeyu Li, Yisheng Zhao, Jin An, Hongwei Huang   +6 more
wiley   +1 more source

Renewable energy mapping in Northeastern Morocco: A geographic information system‐based comparison of geothermal, solar, and wind potential in the Guercif‐Guilliz and Beni Snassen regions

Deep Underground Science and Engineering, EarlyView.
The graphical abstract summarizes a geographic information system (GIS)‐based synthesis of renewable energy resources in Northeastern Morocco, focusing on the Guercif‐Guilliz and Beni Snassen areas. It visually presents the spatial distribution of solar irradiation and wind energy potential derived from available datasets, alongside their relationship ...
Meryem Redouane, Hind Khalis, Faouziya Haissen, Othman Sadki, Hicham El Asmi, Abdelbarie Redouane   +5 more
wiley   +1 more source

Recent advances in karst research: From theory to fieldwork and applications [PDF]

, 2018
Karst landscapes and karst aquifers, which are composed of a variety of soluble rocks such as salt, gypsum, anhydrite, limestone, dolomite and quartzite, are fascinating areas of study.
Ravbar, Natasa, Mario Parise, Parise, Mario, Kaufmann, Georg, Georg Kaufmann, Natasa Ravbar, Gabrovšek, Franci, Franci Gabrovsek, PARISE M., GABROVSEK F., KAUFMANN G. & RAVBAR N.   +10 more
core   +3 more sources

Taxon‐dependent multisite species turnover in fragmented habitats: comparing zeta diversity across birds, butterflies, and cursorial hunting spiders

Ecography, EarlyView.
Habitat fragmentation alters species diversity and reshapes community composition. However, conventional pairwise approaches to compositional variation (i.e. beta diversity metrics) do not explicitly characterize how species sharing or turnover change with the number of habitat patches.
Shirui Yu, Yufeng Zhou, Qiyu Jiang, Jie Xie, Yan Wang, Qiwen Du, Shang Sheng, Yaqian Cui, Kai Zhang, Zhixin Wen, Hao Yu, Yu Xu   +11 more
wiley   +1 more source

ACTIVE HYPOGENIC KARST IN ITALY [PDF]

, 2016
Hypogenic speleogenesis, dissolution by aggressive and deep-seated fluids, is the dominant cave formation process for the most important karst systems in Italy.
MENICHETTI, MARCO, Galdenzi, S.
core   +1 more source

Characteristics of paleokarst processes and reservoir development of the middle Permian Maokou Formation in the Yuanba area,Sichuan Basin

Carsologica Sinica
In recent years, the Maokou Formation of the middle Permian in the Yuanba area of Northwest Sichuan has consistently yielded high-flow industrial gas, indicating significant exploration potential for the Maokou Formation in this area.
Shaocong JI, Qingyu ZHANG, Junjie BA, Guoquan NIE, Hongqi DONG, Guochen MO, Meng ZHANG   +6 more
doaj   +1 more source

Study on the delimitation of affected zone of geological environment for karst underground engineering：taking Longgang district, Shenzhen City as an example

Carsologica Sinica, 2022
The construction of a large number of urban underground rail transit and urban renewal projects has intensified the urban karst geological disasters in our country.
Shengtang WU, Xiaozhen JIANG, Xiao MA, Zhen TANG   +3 more
doaj   +1 more source

Beurteilung der Grundwasser-Vulnerabilität in Karstgebieten anhand 3D geologischer und numerischer Modelle [PDF]

, 2007
Groundwater is a major resource for mankind. Among groundwater resources, karst groundwater plays an important role. Approximately a quarter of the world's population depends on karst groundwater.
Butscher, Christoph
core   +1 more source

Damage Characteristics and Stress Distribution Law of Overburden Rock in Multiple Mining of Close Coal Seams

Energy Science &Engineering, EarlyView.
This study on close coal seams shows that multi‐seam mining increases the height of the fractured zone from approximately 26 m (single upper‐seam mining) to about 49 m. When the lower seam is mined after the extraction of the upper seam, the heights of both the caved zone and the fractured zone increase by approximately two times.
Xiaoyu Wu, Lei Guo, Zedong Sun, Xiaowei Wu, Nan Zhang   +4 more
wiley   +1 more source

Soil Carbon Loss Driven by Soil Erosion: Progress, Challenges, and Future Directions

Ecosystem Health and Sustainability
Soil-erosion-driven loss of soil organic carbon is a critical component of the global carbon cycle and climate change research. To systematically review the intellectual evolution and research frontiers in this field, this study employed bibliometric and
Kunqian Yue, Xianwen Zhang, Jiacheng Lan, Yongxiang Jiang, Ruitao Mao, Ya Zhang, Hui Dong, Xingyu Jiang, Qingqing Ye, Kuanping Zhang   +9 more
doaj   +1 more source